Edit configuration comments

Marlin/Configuration.h

 #define PREHEAT_2_TEMP_BED    110
 #define PREHEAT_2_FAN_SPEED     0 // Value from 0 to 255
 
-//
-// Nozzle Park -- EXPERIMENTAL
-//
-// When enabled allows the user to define a special XYZ position, inside the
-// machine's topology, to park the nozzle when idle or when receiving the G27
-// command.
-//
-// The "P" paramenter controls what is the action applied to the Z axis:
-//    P0: (Default) If current Z-pos is lower than Z-park then the nozzle will
-//        be raised to reach Z-park height.
-//
-//    P1: No matter the current Z-pos, the nozzle will be raised/lowered to
-//        reach Z-park height.
-//
-//    P2: The nozzle height will be raised by Z-park amount but never going over
-//        the machine's limit of Z_MAX_POS.
-//
+/**
+ * Nozzle Park -- EXPERIMENTAL
+ *
+ * Park the nozzle at the given XYZ position on idle or G27.
+ *
+ * The "P" parameter controls the action applied to the Z axis:
+ *
+ *    P0  (Default) If Z is below park Z raise the nozzle.
+ *    P1  Raise the nozzle always to Z-park height.
+ *    P2  Raise the nozzle by Z-park amount, limited to Z_MAX_POS.
+ */
 //#define NOZZLE_PARK_FEATURE
 
 #if ENABLED(NOZZLE_PARK_FEATURE)
   #define NOZZLE_PARK_POINT { (X_MIN_POS + 10), (Y_MAX_POS - 10), 20 }
 #endif
 
-//
-// Clean Nozzle Feature -- EXPERIMENTAL
-//
-// When enabled allows the user to send G12 to start the nozzle cleaning
-// process, the G-Code accepts two parameters:
-//   "P" for pattern selection
-//   "S" for defining the number of strokes/repetitions
-//
-// Available list of patterns:
-//   P0: This is the default pattern, this process requires a sponge type
-//       material at a fixed bed location. S defines "strokes" i.e.
-//       back-and-forth movements between the starting and end points.
-//
-//   P1: This starts a zig-zag pattern between (X0, Y0) and (X1, Y1), "T"
-//       defines the number of zig-zag triangles to be done. "S" defines the
-//       number of strokes aka one back-and-forth movement. Zig-zags will
-//       be performed in whichever dimension is smallest. As an example,
-//       sending "G12 P1 S1 T3" will execute:
-//
-//          --
-//         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
-//         |           |    /  \      /  \      /  \    |
-//       A |           |   /    \    /    \    /    \   |
-//         |           |  /      \  /      \  /      \  |
-//         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
-//          --         +--------------------------------+
-//                       |________|_________|_________|
-//                           T1        T2        T3
-//
-//   P2: This starts a circular pattern with circle with middle in
-//       NOZZLE_CLEAN_CIRCLE_MIDDLE radius of R and stroke count of S.
-//       Before starting the circle nozzle goes to NOZZLE_CLEAN_START_POINT.
-//
-// Caveats: End point Z should use the same value as Start point Z.
-//
-// Attention: This is an EXPERIMENTAL feature, in the future the G-code arguments
-// may change to add new functionality like different wipe patterns.
-//
+/**
+ * Clean Nozzle Feature -- EXPERIMENTAL
+ *
+ * Adds the G12 command to perform a nozzle cleaning process.
+ *
+ * Parameters:
+ *   P  Pattern
+ *   S  Strokes / Repetitions
+ *   T  Triangles (P1 only)
+ *
+ * Patterns:
+ *   P0  Straight line (default). This process requires a sponge type material
+ *       at a fixed bed location. "S" specifies strokes (i.e. back-forth motions)
+ *       between the start / end points.
+ *
+ *   P1  Zig-zag pattern between (X0, Y0) and (X1, Y1), "T" specifies the
+ *       number of zig-zag triangles to do. "S" defines the number of strokes.
+ *       Zig-zags are done in whichever is the narrower dimension.
+ *       For example, "G12 P1 S1 T3" will execute:
+ *
+ *          --
+ *         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
+ *         |           |    /  \      /  \      /  \    |
+ *       A |           |   /    \    /    \    /    \   |
+ *         |           |  /      \  /      \  /      \  |
+ *         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
+ *          --         +--------------------------------+
+ *                       |________|_________|_________|
+ *                           T1        T2        T3
+ *
+ *   P2  Circular pattern with middle at NOZZLE_CLEAN_CIRCLE_MIDDLE.
+ *       "R" specifies the radius. "S" specifies the stroke count.
+ *       Before starting, the nozzle moves to NOZZLE_CLEAN_START_POINT.
+ *
+ *   Caveats: The ending Z should be the same as starting Z.
+ * Attention: EXPERIMENTAL. G-code arguments may change.
+ *
+ */
 //#define NOZZLE_CLEAN_FEATURE
 
 #if ENABLED(NOZZLE_CLEAN_FEATURE)
   #define NOZZLE_CLEAN_GOBACK
 #endif
 
-//
-// Print job timer
-//
-// Enable this option to automatically start and stop the
-// print job timer when M104/M109/M190 commands are received.
-// M104 (extruder without wait) - high temp = none, low temp = stop timer
-// M109 (extruder with wait) - high temp = start timer, low temp = stop timer
-// M190 (bed with wait) - high temp = start timer, low temp = none
-//
-// In all cases the timer can be started and stopped using
-// the following commands:
-//
-// - M75  - Start the print job timer
-// - M76  - Pause the print job timer
-// - M77  - Stop the print job timer
+/**
+ * Print Job Timer
+ *
+ * Automatically start and stop the print job timer on M104/M109/M190.
+ *
+ *   M104 (hotend, no wait) - high temp = none,        low temp = stop timer
+ *   M109 (hotend, wait)    - high temp = start timer, low temp = stop timer
+ *   M190 (bed, wait)       - high temp = start timer, low temp = none
+ *
+ * The timer can also be controlled with the following commands:
+ *
+ *   M75 - Start the print job timer
+ *   M76 - Pause the print job timer
+ *   M77 - Stop the print job timer
+ */
 #define PRINTJOB_TIMER_AUTOSTART
 
-//
-// Print Counter
-//
-// When enabled Marlin will keep track of some print statistical data such as:
-//  - Total print jobs
-//  - Total successful print jobs
-//  - Total failed print jobs
-//  - Total time printing
-//
-// This information can be viewed by the M78 command.
+/**
+ * Print Counter
+ *
+ * Track statistical data such as:
+ *
+ *  - Total print jobs
+ *  - Total successful print jobs
+ *  - Total failed print jobs
+ *  - Total time printing
+ *
+ * View the current statistics with M78.
+ */
 //#define PRINTCOUNTER
 
 //=============================================================================
 
 // @section lcd
 
-//
-// LCD LANGUAGE
-//
-// Here you may choose the language used by Marlin on the LCD menus, the following
-// list of languages are available:
-//    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
-//    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
-//
-// :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
-//
+/**
+ * LCD LANGUAGE
+ *
+ * Select the language to display on the LCD. These languages are available:
+ *
+ *    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
+ *    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
+ *
+ * :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
+ */
 #define LCD_LANGUAGE en
 
-//
-// LCD Character Set
-//
-// Note: This option is NOT applicable to Graphical Displays.
-//
-// All character-based LCD's provide ASCII plus one of these
-// language extensions:
-//
-//  - JAPANESE ... the most common
-//  - WESTERN  ... with more accented characters
-//  - CYRILLIC ... for the Russian language
-//
-// To determine the language extension installed on your controller:
-//
-//  - Compile and upload with LCD_LANGUAGE set to 'test'
-//  - Click the controller to view the LCD menu
-//  - The LCD will display Japanese, Western, or Cyrillic text
-//
-// See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-// :['JAPANESE', 'WESTERN', 'CYRILLIC']
-//
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCDs provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https: *github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE', 'WESTERN', 'CYRILLIC']
+ */
 #define DISPLAY_CHARSET_HD44780 JAPANESE
 
-//
-// LCD TYPE
-//
-// You may choose ULTRA_LCD if you have character based LCD with 16x2, 16x4, 20x2,
-// 20x4 char/lines or DOGLCD for the full graphics display with 128x64 pixels
-// (ST7565R family). (This option will be set automatically for certain displays.)
-//
-// IMPORTANT NOTE: The U8glib library is required for Full Graphic Display!
-//                 https://github.com/olikraus/U8glib_Arduino
-//
+/**
+ * LCD TYPE
+ *
+ * Enable ULTRA_LCD for a 16x2, 16x4, 20x2, or 20x4 character-based LCD.
+ * Enable DOGLCD for a 128x64 (ST7565R) Full Graphical Display.
+ * (These options will be enabled automatically for most displays.)
+ *
+ * IMPORTANT: The U8glib library is required for Full Graphic Display!
+ *            https://github.com/olikraus/U8glib_Arduino
+ */
 //#define ULTRA_LCD   // Character based
 //#define DOGLCD      // Full graphics display
 
-//
-// SD CARD
-//
-// SD Card support is disabled by default. If your controller has an SD slot,
-// you must uncomment the following option or it won't work.
-//
+/**
+ * SD CARD
+ *
+ * SD Card support is disabled by default. If your controller has an SD slot,
+ * you must uncomment the following option or it won't work.
+ *
+ */
 //#define SDSUPPORT
 
-//
-// SD CARD: SPI SPEED
-//
-// Uncomment ONE of the following items to use a slower SPI transfer
-// speed. This is usually required if you're getting volume init errors.
-//
+/**
+ * SD CARD: SPI SPEED
+ *
+ * Enable one of the following items for a slower SPI transfer speed.
+ * This may be required to resolve "volume init" errors.
+ */
 //#define SPI_SPEED SPI_HALF_SPEED
 //#define SPI_SPEED SPI_QUARTER_SPEED
 //#define SPI_SPEED SPI_EIGHTH_SPEED
 
-//
-// SD CARD: ENABLE CRC
-//
-// Use CRC checks and retries on the SD communication.
-//
+/**
+ * SD CARD: ENABLE CRC
+ *
+ * Use CRC checks and retries on the SD communication.
+ */
 //#define SD_CHECK_AND_RETRY
 
 //
  */
 
 //
-// This option reverses the encoder direction everywhere
+// This option reverses the encoder direction everywhere.
 //
 //  Set this option if CLOCKWISE causes values to DECREASE
 //

Marlin/example_configurations/Cartesio/Configuration.h

 #define PREHEAT_2_TEMP_BED    110
 #define PREHEAT_2_FAN_SPEED     0 // Value from 0 to 255
 
-//
-// Nozzle Park -- EXPERIMENTAL
-//
-// When enabled allows the user to define a special XYZ position, inside the
-// machine's topology, to park the nozzle when idle or when receiving the G27
-// command.
-//
-// The "P" paramenter controls what is the action applied to the Z axis:
-//    P0: (Default) If current Z-pos is lower than Z-park then the nozzle will
-//        be raised to reach Z-park height.
-//
-//    P1: No matter the current Z-pos, the nozzle will be raised/lowered to
-//        reach Z-park height.
-//
-//    P2: The nozzle height will be raised by Z-park amount but never going over
-//        the machine's limit of Z_MAX_POS.
-//
+/**
+ * Nozzle Park -- EXPERIMENTAL
+ *
+ * Park the nozzle at the given XYZ position on idle or G27.
+ *
+ * The "P" parameter controls the action applied to the Z axis:
+ *
+ *    P0  (Default) If Z is below park Z raise the nozzle.
+ *    P1  Raise the nozzle always to Z-park height.
+ *    P2  Raise the nozzle by Z-park amount, limited to Z_MAX_POS.
+ */
 //#define NOZZLE_PARK_FEATURE
 
 #if ENABLED(NOZZLE_PARK_FEATURE)
   #define NOZZLE_PARK_POINT { (X_MIN_POS + 10), (Y_MAX_POS - 10), 20 }
 #endif
 
-//
-// Clean Nozzle Feature -- EXPERIMENTAL
-//
-// When enabled allows the user to send G12 to start the nozzle cleaning
-// process, the G-Code accepts two parameters:
-//   "P" for pattern selection
-//   "S" for defining the number of strokes/repetitions
-//
-// Available list of patterns:
-//   P0: This is the default pattern, this process requires a sponge type
-//       material at a fixed bed location. S defines "strokes" i.e.
-//       back-and-forth movements between the starting and end points.
-//
-//   P1: This starts a zig-zag pattern between (X0, Y0) and (X1, Y1), "T"
-//       defines the number of zig-zag triangles to be done. "S" defines the
-//       number of strokes aka one back-and-forth movement. Zig-zags will
-//       be performed in whichever dimension is smallest. As an example,
-//       sending "G12 P1 S1 T3" will execute:
-//
-//          --
-//         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
-//         |           |    /  \      /  \      /  \    |
-//       A |           |   /    \    /    \    /    \   |
-//         |           |  /      \  /      \  /      \  |
-//         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
-//          --         +--------------------------------+
-//                       |________|_________|_________|
-//                           T1        T2        T3
-//
-//   P2: This starts a circular pattern with circle with middle in
-//       NOZZLE_CLEAN_CIRCLE_MIDDLE radius of R and stroke count of S.
-//       Before starting the circle nozzle goes to NOZZLE_CLEAN_START_POINT.
-//
-// Caveats: End point Z should use the same value as Start point Z.
-//
-// Attention: This is an EXPERIMENTAL feature, in the future the G-code arguments
-// may change to add new functionality like different wipe patterns.
-//
+/**
+ * Clean Nozzle Feature -- EXPERIMENTAL
+ *
+ * Adds the G12 command to perform a nozzle cleaning process.
+ *
+ * Parameters:
+ *   P  Pattern
+ *   S  Strokes / Repetitions
+ *   T  Triangles (P1 only)
+ *
+ * Patterns:
+ *   P0  Straight line (default). This process requires a sponge type material
+ *       at a fixed bed location. "S" specifies strokes (i.e. back-forth motions)
+ *       between the start / end points.
+ *
+ *   P1  Zig-zag pattern between (X0, Y0) and (X1, Y1), "T" specifies the
+ *       number of zig-zag triangles to do. "S" defines the number of strokes.
+ *       Zig-zags are done in whichever is the narrower dimension.
+ *       For example, "G12 P1 S1 T3" will execute:
+ *
+ *          --
+ *         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
+ *         |           |    /  \      /  \      /  \    |
+ *       A |           |   /    \    /    \    /    \   |
+ *         |           |  /      \  /      \  /      \  |
+ *         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
+ *          --         +--------------------------------+
+ *                       |________|_________|_________|
+ *                           T1        T2        T3
+ *
+ *   P2  Circular pattern with middle at NOZZLE_CLEAN_CIRCLE_MIDDLE.
+ *       "R" specifies the radius. "S" specifies the stroke count.
+ *       Before starting, the nozzle moves to NOZZLE_CLEAN_START_POINT.
+ *
+ *   Caveats: The ending Z should be the same as starting Z.
+ * Attention: EXPERIMENTAL. G-code arguments may change.
+ *
+ */
 //#define NOZZLE_CLEAN_FEATURE
 
 #if ENABLED(NOZZLE_CLEAN_FEATURE)
   #define NOZZLE_CLEAN_GOBACK
 #endif
 
-//
-// Print job timer
-//
-// Enable this option to automatically start and stop the
-// print job timer when M104/M109/M190 commands are received.
-// M104 (extruder without wait) - high temp = none, low temp = stop timer
-// M109 (extruder with wait) - high temp = start timer, low temp = stop timer
-// M190 (bed with wait) - high temp = start timer, low temp = none
-//
-// In all cases the timer can be started and stopped using
-// the following commands:
-//
-// - M75  - Start the print job timer
-// - M76  - Pause the print job timer
-// - M77  - Stop the print job timer
+/**
+ * Print Job Timer
+ *
+ * Automatically start and stop the print job timer on M104/M109/M190.
+ *
+ *   M104 (hotend, no wait) - high temp = none,        low temp = stop timer
+ *   M109 (hotend, wait)    - high temp = start timer, low temp = stop timer
+ *   M190 (bed, wait)       - high temp = start timer, low temp = none
+ *
+ * The timer can also be controlled with the following commands:
+ *
+ *   M75 - Start the print job timer
+ *   M76 - Pause the print job timer
+ *   M77 - Stop the print job timer
+ */
 #define PRINTJOB_TIMER_AUTOSTART
 
-//
-// Print Counter
-//
-// When enabled Marlin will keep track of some print statistical data such as:
-//  - Total print jobs
-//  - Total successful print jobs
-//  - Total failed print jobs
-//  - Total time printing
-//
-// This information can be viewed by the M78 command.
+/**
+ * Print Counter
+ *
+ * Track statistical data such as:
+ *
+ *  - Total print jobs
+ *  - Total successful print jobs
+ *  - Total failed print jobs
+ *  - Total time printing
+ *
+ * View the current statistics with M78.
+ */
 //#define PRINTCOUNTER
 
 //=============================================================================
 
 // @section lcd
 
-//
-// LCD LANGUAGE
-//
-// Here you may choose the language used by Marlin on the LCD menus, the following
-// list of languages are available:
-//    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
-//    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
-//
-// :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
-//
+/**
+ * LCD LANGUAGE
+ *
+ * Select the language to display on the LCD. These languages are available:
+ *
+ *    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
+ *    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
+ *
+ * :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
+ */
 #define LCD_LANGUAGE en
 
-//
-// LCD Character Set
-//
-// Note: This option is NOT applicable to Graphical Displays.
-//
-// All character-based LCD's provide ASCII plus one of these
-// language extensions:
-//
-//  - JAPANESE ... the most common
-//  - WESTERN  ... with more accented characters
-//  - CYRILLIC ... for the Russian language
-//
-// To determine the language extension installed on your controller:
-//
-//  - Compile and upload with LCD_LANGUAGE set to 'test'
-//  - Click the controller to view the LCD menu
-//  - The LCD will display Japanese, Western, or Cyrillic text
-//
-// See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-// :['JAPANESE', 'WESTERN', 'CYRILLIC']
-//
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCDs provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https: *github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE', 'WESTERN', 'CYRILLIC']
+ */
 #define DISPLAY_CHARSET_HD44780 JAPANESE
 
-//
-// LCD TYPE
-//
-// You may choose ULTRA_LCD if you have character based LCD with 16x2, 16x4, 20x2,
-// 20x4 char/lines or DOGLCD for the full graphics display with 128x64 pixels
-// (ST7565R family). (This option will be set automatically for certain displays.)
-//
-// IMPORTANT NOTE: The U8glib library is required for Full Graphic Display!
-//                 https://github.com/olikraus/U8glib_Arduino
-//
+/**
+ * LCD TYPE
+ *
+ * Enable ULTRA_LCD for a 16x2, 16x4, 20x2, or 20x4 character-based LCD.
+ * Enable DOGLCD for a 128x64 (ST7565R) Full Graphical Display.
+ * (These options will be enabled automatically for most displays.)
+ *
+ * IMPORTANT: The U8glib library is required for Full Graphic Display!
+ *            https://github.com/olikraus/U8glib_Arduino
+ */
 //#define ULTRA_LCD   // Character based
 //#define DOGLCD      // Full graphics display
 
-//
-// SD CARD
-//
-// SD Card support is disabled by default. If your controller has an SD slot,
-// you must uncomment the following option or it won't work.
-//
+/**
+ * SD CARD
+ *
+ * SD Card support is disabled by default. If your controller has an SD slot,
+ * you must uncomment the following option or it won't work.
+ *
+ */
 #define SDSUPPORT
 
-//
-// SD CARD: SPI SPEED
-//
-// Uncomment ONE of the following items to use a slower SPI transfer
-// speed. This is usually required if you're getting volume init errors.
-//
+/**
+ * SD CARD: SPI SPEED
+ *
+ * Enable one of the following items for a slower SPI transfer speed.
+ * This may be required to resolve "volume init" errors.
+ */
 //#define SPI_SPEED SPI_HALF_SPEED
 //#define SPI_SPEED SPI_QUARTER_SPEED
 //#define SPI_SPEED SPI_EIGHTH_SPEED
 
-//
-// SD CARD: ENABLE CRC
-//
-// Use CRC checks and retries on the SD communication.
-//
+/**
+ * SD CARD: ENABLE CRC
+ *
+ * Use CRC checks and retries on the SD communication.
+ */
 //#define SD_CHECK_AND_RETRY
 
 //
  */
 
 //
-// This option reverses the encoder direction everywhere
+// This option reverses the encoder direction everywhere.
 //
 //  Set this option if CLOCKWISE causes values to DECREASE
 //

Marlin/example_configurations/Felix/Configuration.h

 #define PREHEAT_2_TEMP_BED    100
 #define PREHEAT_2_FAN_SPEED   255 // Value from 0 to 255
 
-//
-// Nozzle Park -- EXPERIMENTAL
-//
-// When enabled allows the user to define a special XYZ position, inside the
-// machine's topology, to park the nozzle when idle or when receiving the G27
-// command.
-//
-// The "P" paramenter controls what is the action applied to the Z axis:
-//    P0: (Default) If current Z-pos is lower than Z-park then the nozzle will
-//        be raised to reach Z-park height.
-//
-//    P1: No matter the current Z-pos, the nozzle will be raised/lowered to
-//        reach Z-park height.
-//
-//    P2: The nozzle height will be raised by Z-park amount but never going over
-//        the machine's limit of Z_MAX_POS.
-//
+/**
+ * Nozzle Park -- EXPERIMENTAL
+ *
+ * Park the nozzle at the given XYZ position on idle or G27.
+ *
+ * The "P" parameter controls the action applied to the Z axis:
+ *
+ *    P0  (Default) If Z is below park Z raise the nozzle.
+ *    P1  Raise the nozzle always to Z-park height.
+ *    P2  Raise the nozzle by Z-park amount, limited to Z_MAX_POS.
+ */
 //#define NOZZLE_PARK_FEATURE
 
 #if ENABLED(NOZZLE_PARK_FEATURE)
   #define NOZZLE_PARK_POINT { (X_MIN_POS + 10), (Y_MAX_POS - 10), 20 }
 #endif
 
-//
-// Clean Nozzle Feature -- EXPERIMENTAL
-//
-// When enabled allows the user to send G12 to start the nozzle cleaning
-// process, the G-Code accepts two parameters:
-//   "P" for pattern selection
-//   "S" for defining the number of strokes/repetitions
-//
-// Available list of patterns:
-//   P0: This is the default pattern, this process requires a sponge type
-//       material at a fixed bed location. S defines "strokes" i.e.
-//       back-and-forth movements between the starting and end points.
-//
-//   P1: This starts a zig-zag pattern between (X0, Y0) and (X1, Y1), "T"
-//       defines the number of zig-zag triangles to be done. "S" defines the
-//       number of strokes aka one back-and-forth movement. Zig-zags will
-//       be performed in whichever dimension is smallest. As an example,
-//       sending "G12 P1 S1 T3" will execute:
-//
-//          --
-//         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
-//         |           |    /  \      /  \      /  \    |
-//       A |           |   /    \    /    \    /    \   |
-//         |           |  /      \  /      \  /      \  |
-//         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
-//          --         +--------------------------------+
-//                       |________|_________|_________|
-//                           T1        T2        T3
-//
-//   P2: This starts a circular pattern with circle with middle in
-//       NOZZLE_CLEAN_CIRCLE_MIDDLE radius of R and stroke count of S.
-//       Before starting the circle nozzle goes to NOZZLE_CLEAN_START_POINT.
-//
-// Caveats: End point Z should use the same value as Start point Z.
-//
-// Attention: This is an EXPERIMENTAL feature, in the future the G-code arguments
-// may change to add new functionality like different wipe patterns.
-//
+/**
+ * Clean Nozzle Feature -- EXPERIMENTAL
+ *
+ * Adds the G12 command to perform a nozzle cleaning process.
+ *
+ * Parameters:
+ *   P  Pattern
+ *   S  Strokes / Repetitions
+ *   T  Triangles (P1 only)
+ *
+ * Patterns:
+ *   P0  Straight line (default). This process requires a sponge type material
+ *       at a fixed bed location. "S" specifies strokes (i.e. back-forth motions)
+ *       between the start / end points.
+ *
+ *   P1  Zig-zag pattern between (X0, Y0) and (X1, Y1), "T" specifies the
+ *       number of zig-zag triangles to do. "S" defines the number of strokes.
+ *       Zig-zags are done in whichever is the narrower dimension.
+ *       For example, "G12 P1 S1 T3" will execute:
+ *
+ *          --
+ *         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
+ *         |           |    /  \      /  \      /  \    |
+ *       A |           |   /    \    /    \    /    \   |
+ *         |           |  /      \  /      \  /      \  |
+ *         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
+ *          --         +--------------------------------+
+ *                       |________|_________|_________|
+ *                           T1        T2        T3
+ *
+ *   P2  Circular pattern with middle at NOZZLE_CLEAN_CIRCLE_MIDDLE.
+ *       "R" specifies the radius. "S" specifies the stroke count.
+ *       Before starting, the nozzle moves to NOZZLE_CLEAN_START_POINT.
+ *
+ *   Caveats: The ending Z should be the same as starting Z.
+ * Attention: EXPERIMENTAL. G-code arguments may change.
+ *
+ */
 //#define NOZZLE_CLEAN_FEATURE
 
 #if ENABLED(NOZZLE_CLEAN_FEATURE)
   #define NOZZLE_CLEAN_GOBACK
 #endif
 
-//
-// Print job timer
-//
-// Enable this option to automatically start and stop the
-// print job timer when M104/M109/M190 commands are received.
-// M104 (extruder without wait) - high temp = none, low temp = stop timer
-// M109 (extruder with wait) - high temp = start timer, low temp = stop timer
-// M190 (bed with wait) - high temp = start timer, low temp = none
-//
-// In all cases the timer can be started and stopped using
-// the following commands:
-//
-// - M75  - Start the print job timer
-// - M76  - Pause the print job timer
-// - M77  - Stop the print job timer
+/**
+ * Print Job Timer
+ *
+ * Automatically start and stop the print job timer on M104/M109/M190.
+ *
+ *   M104 (hotend, no wait) - high temp = none,        low temp = stop timer
+ *   M109 (hotend, wait)    - high temp = start timer, low temp = stop timer
+ *   M190 (bed, wait)       - high temp = start timer, low temp = none
+ *
+ * The timer can also be controlled with the following commands:
+ *
+ *   M75 - Start the print job timer
+ *   M76 - Pause the print job timer
+ *   M77 - Stop the print job timer
+ */
 #define PRINTJOB_TIMER_AUTOSTART
 
-//
-// Print Counter
-//
-// When enabled Marlin will keep track of some print statistical data such as:
-//  - Total print jobs
-//  - Total successful print jobs
-//  - Total failed print jobs
-//  - Total time printing
-//
-// This information can be viewed by the M78 command.
+/**
+ * Print Counter
+ *
+ * Track statistical data such as:
+ *
+ *  - Total print jobs
+ *  - Total successful print jobs
+ *  - Total failed print jobs
+ *  - Total time printing
+ *
+ * View the current statistics with M78.
+ */
 //#define PRINTCOUNTER
 
 //=============================================================================
 
 // @section lcd
 
-//
-// LCD LANGUAGE
-//
-// Here you may choose the language used by Marlin on the LCD menus, the following
-// list of languages are available:
-//    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
-//    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
-//
-// :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
-//
+/**
+ * LCD LANGUAGE
+ *
+ * Select the language to display on the LCD. These languages are available:
+ *
+ *    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
+ *    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
+ *
+ * :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
+ */
 //#define LCD_LANGUAGE en
 
-//
-// LCD Character Set
-//
-// Note: This option is NOT applicable to Graphical Displays.
-//
-// All character-based LCD's provide ASCII plus one of these
-// language extensions:
-//
-//  - JAPANESE ... the most common
-//  - WESTERN  ... with more accented characters
-//  - CYRILLIC ... for the Russian language
-//
-// To determine the language extension installed on your controller:
-//
-//  - Compile and upload with LCD_LANGUAGE set to 'test'
-//  - Click the controller to view the LCD menu
-//  - The LCD will display Japanese, Western, or Cyrillic text
-//
-// See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-// :['JAPANESE', 'WESTERN', 'CYRILLIC']
-//
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCDs provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https: *github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE', 'WESTERN', 'CYRILLIC']
+ */
 #define DISPLAY_CHARSET_HD44780 JAPANESE
 
-//
-// LCD TYPE
-//
-// You may choose ULTRA_LCD if you have character based LCD with 16x2, 16x4, 20x2,
-// 20x4 char/lines or DOGLCD for the full graphics display with 128x64 pixels
-// (ST7565R family). (This option will be set automatically for certain displays.)
-//
-// IMPORTANT NOTE: The U8glib library is required for Full Graphic Display!
-//                 https://github.com/olikraus/U8glib_Arduino
-//
+/**
+ * LCD TYPE
+ *
+ * Enable ULTRA_LCD for a 16x2, 16x4, 20x2, or 20x4 character-based LCD.
+ * Enable DOGLCD for a 128x64 (ST7565R) Full Graphical Display.
+ * (These options will be enabled automatically for most displays.)
+ *
+ * IMPORTANT: The U8glib library is required for Full Graphic Display!
+ *            https://github.com/olikraus/U8glib_Arduino
+ */
 //#define ULTRA_LCD   // Character based
 //#define DOGLCD      // Full graphics display
 
-//
-// SD CARD
-//
-// SD Card support is disabled by default. If your controller has an SD slot,
-// you must uncomment the following option or it won't work.
-//
+/**
+ * SD CARD
+ *
+ * SD Card support is disabled by default. If your controller has an SD slot,
+ * you must uncomment the following option or it won't work.
+ *
+ */
 //#define SDSUPPORT
 
-//
-// SD CARD: SPI SPEED
-//
-// Uncomment ONE of the following items to use a slower SPI transfer
-// speed. This is usually required if you're getting volume init errors.
-//
+/**
+ * SD CARD: SPI SPEED
+ *
+ * Enable one of the following items for a slower SPI transfer speed.
+ * This may be required to resolve "volume init" errors.
+ */
 //#define SPI_SPEED SPI_HALF_SPEED
 //#define SPI_SPEED SPI_QUARTER_SPEED
 //#define SPI_SPEED SPI_EIGHTH_SPEED
 
-//
-// SD CARD: ENABLE CRC
-//
-// Use CRC checks and retries on the SD communication.
-//
+/**
+ * SD CARD: ENABLE CRC
+ *
+ * Use CRC checks and retries on the SD communication.
+ */
 //#define SD_CHECK_AND_RETRY
 
 //
  */
 
 //
-// This option reverses the encoder direction everywhere
+// This option reverses the encoder direction everywhere.
 //
 //  Set this option if CLOCKWISE causes values to DECREASE
 //

Marlin/example_configurations/Felix/DUAL/Configuration.h

 #define PREHEAT_2_TEMP_BED    100
 #define PREHEAT_2_FAN_SPEED   255 // Value from 0 to 255
 
-//
-// Nozzle Park -- EXPERIMENTAL
-//
-// When enabled allows the user to define a special XYZ position, inside the
-// machine's topology, to park the nozzle when idle or when receiving the G27
-// command.
-//
-// The "P" paramenter controls what is the action applied to the Z axis:
-//    P0: (Default) If current Z-pos is lower than Z-park then the nozzle will
-//        be raised to reach Z-park height.
-//
-//    P1: No matter the current Z-pos, the nozzle will be raised/lowered to
-//        reach Z-park height.
-//
-//    P2: The nozzle height will be raised by Z-park amount but never going over
-//        the machine's limit of Z_MAX_POS.
-//
+/**
+ * Nozzle Park -- EXPERIMENTAL
+ *
+ * Park the nozzle at the given XYZ position on idle or G27.
+ *
+ * The "P" parameter controls the action applied to the Z axis:
+ *
+ *    P0  (Default) If Z is below park Z raise the nozzle.
+ *    P1  Raise the nozzle always to Z-park height.
+ *    P2  Raise the nozzle by Z-park amount, limited to Z_MAX_POS.
+ */
 //#define NOZZLE_PARK_FEATURE
 
 #if ENABLED(NOZZLE_PARK_FEATURE)
   #define NOZZLE_PARK_POINT { (X_MIN_POS + 10), (Y_MAX_POS - 10), 20 }
 #endif
 
-//
-// Clean Nozzle Feature -- EXPERIMENTAL
-//
-// When enabled allows the user to send G12 to start the nozzle cleaning
-// process, the G-Code accepts two parameters:
-//   "P" for pattern selection
-//   "S" for defining the number of strokes/repetitions
-//
-// Available list of patterns:
-//   P0: This is the default pattern, this process requires a sponge type
-//       material at a fixed bed location. S defines "strokes" i.e.
-//       back-and-forth movements between the starting and end points.
-//
-//   P1: This starts a zig-zag pattern between (X0, Y0) and (X1, Y1), "T"
-//       defines the number of zig-zag triangles to be done. "S" defines the
-//       number of strokes aka one back-and-forth movement. Zig-zags will
-//       be performed in whichever dimension is smallest. As an example,
-//       sending "G12 P1 S1 T3" will execute:
-//
-//          --
-//         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
-//         |           |    /  \      /  \      /  \    |
-//       A |           |   /    \    /    \    /    \   |
-//         |           |  /      \  /      \  /      \  |
-//         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
-//          --         +--------------------------------+
-//                       |________|_________|_________|
-//                           T1        T2        T3
-//
-//   P2: This starts a circular pattern with circle with middle in
-//       NOZZLE_CLEAN_CIRCLE_MIDDLE radius of R and stroke count of S.
-//       Before starting the circle nozzle goes to NOZZLE_CLEAN_START_POINT.
-//
-// Caveats: End point Z should use the same value as Start point Z.
-//
-// Attention: This is an EXPERIMENTAL feature, in the future the G-code arguments
-// may change to add new functionality like different wipe patterns.
-//
+/**
+ * Clean Nozzle Feature -- EXPERIMENTAL
+ *
+ * Adds the G12 command to perform a nozzle cleaning process.
+ *
+ * Parameters:
+ *   P  Pattern
+ *   S  Strokes / Repetitions
+ *   T  Triangles (P1 only)
+ *
+ * Patterns:
+ *   P0  Straight line (default). This process requires a sponge type material
+ *       at a fixed bed location. "S" specifies strokes (i.e. back-forth motions)
+ *       between the start / end points.
+ *
+ *   P1  Zig-zag pattern between (X0, Y0) and (X1, Y1), "T" specifies the
+ *       number of zig-zag triangles to do. "S" defines the number of strokes.
+ *       Zig-zags are done in whichever is the narrower dimension.
+ *       For example, "G12 P1 S1 T3" will execute:
+ *
+ *          --
+ *         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
+ *         |           |    /  \      /  \      /  \    |
+ *       A |           |   /    \    /    \    /    \   |
+ *         |           |  /      \  /      \  /      \  |
+ *         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
+ *          --         +--------------------------------+
+ *                       |________|_________|_________|
+ *                           T1        T2        T3
+ *
+ *   P2  Circular pattern with middle at NOZZLE_CLEAN_CIRCLE_MIDDLE.
+ *       "R" specifies the radius. "S" specifies the stroke count.
+ *       Before starting, the nozzle moves to NOZZLE_CLEAN_START_POINT.
+ *
+ *   Caveats: The ending Z should be the same as starting Z.
+ * Attention: EXPERIMENTAL. G-code arguments may change.
+ *
+ */
 //#define NOZZLE_CLEAN_FEATURE
 
 #if ENABLED(NOZZLE_CLEAN_FEATURE)
   #define NOZZLE_CLEAN_GOBACK
 #endif
 
-//
-// Print job timer
-//
-// Enable this option to automatically start and stop the
-// print job timer when M104/M109/M190 commands are received.
-// M104 (extruder without wait) - high temp = none, low temp = stop timer
-// M109 (extruder with wait) - high temp = start timer, low temp = stop timer
-// M190 (bed with wait) - high temp = start timer, low temp = none
-//
-// In all cases the timer can be started and stopped using
-// the following commands:
-//
-// - M75  - Start the print job timer
-// - M76  - Pause the print job timer
-// - M77  - Stop the print job timer
+/**
+ * Print Job Timer
+ *
+ * Automatically start and stop the print job timer on M104/M109/M190.
+ *
+ *   M104 (hotend, no wait) - high temp = none,        low temp = stop timer
+ *   M109 (hotend, wait)    - high temp = start timer, low temp = stop timer
+ *   M190 (bed, wait)       - high temp = start timer, low temp = none
+ *
+ * The timer can also be controlled with the following commands:
+ *
+ *   M75 - Start the print job timer
+ *   M76 - Pause the print job timer
+ *   M77 - Stop the print job timer
+ */
 #define PRINTJOB_TIMER_AUTOSTART
 
-//
-// Print Counter
-//
-// When enabled Marlin will keep track of some print statistical data such as:
-//  - Total print jobs
-//  - Total successful print jobs
-//  - Total failed print jobs
-//  - Total time printing
-//
-// This information can be viewed by the M78 command.
+/**
+ * Print Counter
+ *
+ * Track statistical data such as:
+ *
+ *  - Total print jobs
+ *  - Total successful print jobs
+ *  - Total failed print jobs
+ *  - Total time printing
+ *
+ * View the current statistics with M78.
+ */
 //#define PRINTCOUNTER
 
 //=============================================================================
 
 // @section lcd
 
-//
-// LCD LANGUAGE
-//
-// Here you may choose the language used by Marlin on the LCD menus, the following
-// list of languages are available:
-//    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
-//    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
-//
-// :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
-//
+/**
+ * LCD LANGUAGE
+ *
+ * Select the language to display on the LCD. These languages are available:
+ *
+ *    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
+ *    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
+ *
+ * :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
+ */
 //#define LCD_LANGUAGE en
 
-//
-// LCD Character Set
-//
-// Note: This option is NOT applicable to Graphical Displays.
-//
-// All character-based LCD's provide ASCII plus one of these
-// language extensions:
-//
-//  - JAPANESE ... the most common
-//  - WESTERN  ... with more accented characters
-//  - CYRILLIC ... for the Russian language
-//
-// To determine the language extension installed on your controller:
-//
-//  - Compile and upload with LCD_LANGUAGE set to 'test'
-//  - Click the controller to view the LCD menu
-//  - The LCD will display Japanese, Western, or Cyrillic text
-//
-// See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-// :['JAPANESE', 'WESTERN', 'CYRILLIC']
-//
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCDs provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https: *github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE', 'WESTERN', 'CYRILLIC']
+ */
 #define DISPLAY_CHARSET_HD44780 JAPANESE
 
-//
-// LCD TYPE
-//
-// You may choose ULTRA_LCD if you have character based LCD with 16x2, 16x4, 20x2,
-// 20x4 char/lines or DOGLCD for the full graphics display with 128x64 pixels
-// (ST7565R family). (This option will be set automatically for certain displays.)
-//
-// IMPORTANT NOTE: The U8glib library is required for Full Graphic Display!
-//                 https://github.com/olikraus/U8glib_Arduino
-//
+/**
+ * LCD TYPE
+ *
+ * Enable ULTRA_LCD for a 16x2, 16x4, 20x2, or 20x4 character-based LCD.
+ * Enable DOGLCD for a 128x64 (ST7565R) Full Graphical Display.
+ * (These options will be enabled automatically for most displays.)
+ *
+ * IMPORTANT: The U8glib library is required for Full Graphic Display!
+ *            https://github.com/olikraus/U8glib_Arduino
+ */
 //#define ULTRA_LCD   // Character based
 //#define DOGLCD      // Full graphics display
 
-//
-// SD CARD
-//
-// SD Card support is disabled by default. If your controller has an SD slot,
-// you must uncomment the following option or it won't work.
-//
+/**
+ * SD CARD
+ *
+ * SD Card support is disabled by default. If your controller has an SD slot,
+ * you must uncomment the following option or it won't work.
+ *
+ */
 //#define SDSUPPORT
 
-//
-// SD CARD: SPI SPEED
-//
-// Uncomment ONE of the following items to use a slower SPI transfer
-// speed. This is usually required if you're getting volume init errors.
-//
+/**
+ * SD CARD: SPI SPEED
+ *
+ * Enable one of the following items for a slower SPI transfer speed.
+ * This may be required to resolve "volume init" errors.
+ */
 //#define SPI_SPEED SPI_HALF_SPEED
 //#define SPI_SPEED SPI_QUARTER_SPEED
 //#define SPI_SPEED SPI_EIGHTH_SPEED
 
-//
-// SD CARD: ENABLE CRC
-//
-// Use CRC checks and retries on the SD communication.
-//
+/**
+ * SD CARD: ENABLE CRC
+ *
+ * Use CRC checks and retries on the SD communication.
+ */
 //#define SD_CHECK_AND_RETRY
 
 //
  */
 
 //
-// This option reverses the encoder direction everywhere
+// This option reverses the encoder direction everywhere.
 //
 //  Set this option if CLOCKWISE causes values to DECREASE
 //

Marlin/example_configurations/FolgerTech-i3-2020/Configuration.h

 #define PREHEAT_2_TEMP_BED    110
 #define PREHEAT_2_FAN_SPEED     0 // Value from 0 to 255
 
-//
-// Nozzle Park -- EXPERIMENTAL
-//
-// When enabled allows the user to define a special XYZ position, inside the
-// machine's topology, to park the nozzle when idle or when receiving the G27
-// command.
-//
-// The "P" paramenter controls what is the action applied to the Z axis:
-//    P0: (Default) If current Z-pos is lower than Z-park then the nozzle will
-//        be raised to reach Z-park height.
-//
-//    P1: No matter the current Z-pos, the nozzle will be raised/lowered to
-//        reach Z-park height.
-//
-//    P2: The nozzle height will be raised by Z-park amount but never going over
-//        the machine's limit of Z_MAX_POS.
-//
+/**
+ * Nozzle Park -- EXPERIMENTAL
+ *
+ * Park the nozzle at the given XYZ position on idle or G27.
+ *
+ * The "P" parameter controls the action applied to the Z axis:
+ *
+ *    P0  (Default) If Z is below park Z raise the nozzle.
+ *    P1  Raise the nozzle always to Z-park height.
+ *    P2  Raise the nozzle by Z-park amount, limited to Z_MAX_POS.
+ */
 //#define NOZZLE_PARK_FEATURE
 
 #if ENABLED(NOZZLE_PARK_FEATURE)
   #define NOZZLE_PARK_POINT { (X_MIN_POS + 10), (Y_MAX_POS - 10), 20 }
 #endif
 
-//
-// Clean Nozzle Feature -- EXPERIMENTAL
-//
-// When enabled allows the user to send G12 to start the nozzle cleaning
-// process, the G-Code accepts two parameters:
-//   "P" for pattern selection
-//   "S" for defining the number of strokes/repetitions
-//
-// Available list of patterns:
-//   P0: This is the default pattern, this process requires a sponge type
-//       material at a fixed bed location. S defines "strokes" i.e.
-//       back-and-forth movements between the starting and end points.
-//
-//   P1: This starts a zig-zag pattern between (X0, Y0) and (X1, Y1), "T"
-//       defines the number of zig-zag triangles to be done. "S" defines the
-//       number of strokes aka one back-and-forth movement. Zig-zags will
-//       be performed in whichever dimension is smallest. As an example,
-//       sending "G12 P1 S1 T3" will execute:
-//
-//          --
-//         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
-//         |           |    /  \      /  \      /  \    |
-//       A |           |   /    \    /    \    /    \   |
-//         |           |  /      \  /      \  /      \  |
-//         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
-//          --         +--------------------------------+
-//                       |________|_________|_________|
-//                           T1        T2        T3
-//
-//   P2: This starts a circular pattern with circle with middle in
-//       NOZZLE_CLEAN_CIRCLE_MIDDLE radius of R and stroke count of S.
-//       Before starting the circle nozzle goes to NOZZLE_CLEAN_START_POINT.
-//
-// Caveats: End point Z should use the same value as Start point Z.
-//
-// Attention: This is an EXPERIMENTAL feature, in the future the G-code arguments
-// may change to add new functionality like different wipe patterns.
-//
+/**
+ * Clean Nozzle Feature -- EXPERIMENTAL
+ *
+ * Adds the G12 command to perform a nozzle cleaning process.
+ *
+ * Parameters:
+ *   P  Pattern
+ *   S  Strokes / Repetitions
+ *   T  Triangles (P1 only)
+ *
+ * Patterns:
+ *   P0  Straight line (default). This process requires a sponge type material
+ *       at a fixed bed location. "S" specifies strokes (i.e. back-forth motions)
+ *       between the start / end points.
+ *
+ *   P1  Zig-zag pattern between (X0, Y0) and (X1, Y1), "T" specifies the
+ *       number of zig-zag triangles to do. "S" defines the number of strokes.
+ *       Zig-zags are done in whichever is the narrower dimension.
+ *       For example, "G12 P1 S1 T3" will execute:
+ *
+ *          --
+ *         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
+ *         |           |    /  \      /  \      /  \    |
+ *       A |           |   /    \    /    \    /    \   |
+ *         |           |  /      \  /      \  /      \  |
+ *         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
+ *          --         +--------------------------------+
+ *                       |________|_________|_________|
+ *                           T1        T2        T3
+ *
+ *   P2  Circular pattern with middle at NOZZLE_CLEAN_CIRCLE_MIDDLE.
+ *       "R" specifies the radius. "S" specifies the stroke count.
+ *       Before starting, the nozzle moves to NOZZLE_CLEAN_START_POINT.
+ *
+ *   Caveats: The ending Z should be the same as starting Z.
+ * Attention: EXPERIMENTAL. G-code arguments may change.
+ *
+ */
 //#define NOZZLE_CLEAN_FEATURE
 
 #if ENABLED(NOZZLE_CLEAN_FEATURE)
   #define NOZZLE_CLEAN_GOBACK
 #endif
 
-//
-// Print job timer
-//
-// Enable this option to automatically start and stop the
-// print job timer when M104/M109/M190 commands are received.
-// M104 (extruder without wait) - high temp = none, low temp = stop timer
-// M109 (extruder with wait) - high temp = start timer, low temp = stop timer
-// M190 (bed with wait) - high temp = start timer, low temp = none
-//
-// In all cases the timer can be started and stopped using
-// the following commands:
-//
-// - M75  - Start the print job timer
-// - M76  - Pause the print job timer
-// - M77  - Stop the print job timer
+/**
+ * Print Job Timer
+ *
+ * Automatically start and stop the print job timer on M104/M109/M190.
+ *
+ *   M104 (hotend, no wait) - high temp = none,        low temp = stop timer
+ *   M109 (hotend, wait)    - high temp = start timer, low temp = stop timer
+ *   M190 (bed, wait)       - high temp = start timer, low temp = none
+ *
+ * The timer can also be controlled with the following commands:
+ *
+ *   M75 - Start the print job timer
+ *   M76 - Pause the print job timer
+ *   M77 - Stop the print job timer
+ */
 #define PRINTJOB_TIMER_AUTOSTART
 
-//
-// Print Counter
-//
-// When enabled Marlin will keep track of some print statistical data such as:
-//  - Total print jobs
-//  - Total successful print jobs
-//  - Total failed print jobs
-//  - Total time printing
-//
-// This information can be viewed by the M78 command.
+/**
+ * Print Counter
+ *
+ * Track statistical data such as:
+ *
+ *  - Total print jobs
+ *  - Total successful print jobs
+ *  - Total failed print jobs
+ *  - Total time printing
+ *
+ * View the current statistics with M78.
+ */
 //#define PRINTCOUNTER
 
 //=============================================================================
 
 // @section lcd
 
-//
-// LCD LANGUAGE
-//
-// Here you may choose the language used by Marlin on the LCD menus, the following
-// list of languages are available:
-//    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
-//    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
-//
-// :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
-//
+/**
+ * LCD LANGUAGE
+ *
+ * Select the language to display on the LCD. These languages are available:
+ *
+ *    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
+ *    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
+ *
+ * :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
+ */
 #define LCD_LANGUAGE en
 
-//
-// LCD Character Set
-//
-// Note: This option is NOT applicable to Graphical Displays.
-//
-// All character-based LCD's provide ASCII plus one of these
-// language extensions:
-//
-//  - JAPANESE ... the most common
-//  - WESTERN  ... with more accented characters
-//  - CYRILLIC ... for the Russian language
-//
-// To determine the language extension installed on your controller:
-//
-//  - Compile and upload with LCD_LANGUAGE set to 'test'
-//  - Click the controller to view the LCD menu
-//  - The LCD will display Japanese, Western, or Cyrillic text
-//
-// See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-// :['JAPANESE', 'WESTERN', 'CYRILLIC']
-//
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCDs provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https: *github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE', 'WESTERN', 'CYRILLIC']
+ */
 #define DISPLAY_CHARSET_HD44780 JAPANESE
 
-//
-// LCD TYPE
-//
-// You may choose ULTRA_LCD if you have character based LCD with 16x2, 16x4, 20x2,
-// 20x4 char/lines or DOGLCD for the full graphics display with 128x64 pixels
-// (ST7565R family). (This option will be set automatically for certain displays.)
-//
-// IMPORTANT NOTE: The U8glib library is required for Full Graphic Display!
-//                 https://github.com/olikraus/U8glib_Arduino
-//
+/**
+ * LCD TYPE
+ *
+ * Enable ULTRA_LCD for a 16x2, 16x4, 20x2, or 20x4 character-based LCD.
+ * Enable DOGLCD for a 128x64 (ST7565R) Full Graphical Display.
+ * (These options will be enabled automatically for most displays.)
+ *
+ * IMPORTANT: The U8glib library is required for Full Graphic Display!
+ *            https://github.com/olikraus/U8glib_Arduino
+ */
 //#define ULTRA_LCD   // Character based
 //#define DOGLCD      // Full graphics display
 
-//
-// SD CARD
-//
-// SD Card support is disabled by default. If your controller has an SD slot,
-// you must uncomment the following option or it won't work.
-//
+/**
+ * SD CARD
+ *
+ * SD Card support is disabled by default. If your controller has an SD slot,
+ * you must uncomment the following option or it won't work.
+ *
+ */
 #define SDSUPPORT
 
-//
-// SD CARD: SPI SPEED
-//
-// Uncomment ONE of the following items to use a slower SPI transfer
-// speed. This is usually required if you're getting volume init errors.
-//
+/**
+ * SD CARD: SPI SPEED
+ *
+ * Enable one of the following items for a slower SPI transfer speed.
+ * This may be required to resolve "volume init" errors.
+ */
 //#define SPI_SPEED SPI_HALF_SPEED
 //#define SPI_SPEED SPI_QUARTER_SPEED
 //#define SPI_SPEED SPI_EIGHTH_SPEED
 
-//
-// SD CARD: ENABLE CRC
-//
-// Use CRC checks and retries on the SD communication.
-//
+/**
+ * SD CARD: ENABLE CRC
+ *
+ * Use CRC checks and retries on the SD communication.
+ */
 #define SD_CHECK_AND_RETRY
 
 //
  */
 
 //
-// This option reverses the encoder direction everywhere
+// This option reverses the encoder direction everywhere.
 //
 //  Set this option if CLOCKWISE causes values to DECREASE
 //

Marlin/example_configurations/Hephestos/Configuration.h

 #define PREHEAT_2_TEMP_BED    100
 #define PREHEAT_2_FAN_SPEED   255 // Value from 0 to 255
 
-//
-// Nozzle Park -- EXPERIMENTAL
-//
-// When enabled allows the user to define a special XYZ position, inside the
-// machine's topology, to park the nozzle when idle or when receiving the G27
-// command.
-//
-// The "P" paramenter controls what is the action applied to the Z axis:
-//    P0: (Default) If current Z-pos is lower than Z-park then the nozzle will
-//        be raised to reach Z-park height.
-//
-//    P1: No matter the current Z-pos, the nozzle will be raised/lowered to
-//        reach Z-park height.
-//
-//    P2: The nozzle height will be raised by Z-park amount but never going over
-//        the machine's limit of Z_MAX_POS.
-//
+/**
+ * Nozzle Park -- EXPERIMENTAL
+ *
+ * Park the nozzle at the given XYZ position on idle or G27.
+ *
+ * The "P" parameter controls the action applied to the Z axis:
+ *
+ *    P0  (Default) If Z is below park Z raise the nozzle.
+ *    P1  Raise the nozzle always to Z-park height.
+ *    P2  Raise the nozzle by Z-park amount, limited to Z_MAX_POS.
+ */
 //#define NOZZLE_PARK_FEATURE
 
 #if ENABLED(NOZZLE_PARK_FEATURE)
   #define NOZZLE_PARK_POINT { (X_MIN_POS + 10), (Y_MAX_POS - 10), 20 }
 #endif
 
-//
-// Clean Nozzle Feature -- EXPERIMENTAL
-//
-// When enabled allows the user to send G12 to start the nozzle cleaning
-// process, the G-Code accepts two parameters:
-//   "P" for pattern selection
-//   "S" for defining the number of strokes/repetitions
-//
-// Available list of patterns:
-//   P0: This is the default pattern, this process requires a sponge type
-//       material at a fixed bed location. S defines "strokes" i.e.
-//       back-and-forth movements between the starting and end points.
-//
-//   P1: This starts a zig-zag pattern between (X0, Y0) and (X1, Y1), "T"
-//       defines the number of zig-zag triangles to be done. "S" defines the
-//       number of strokes aka one back-and-forth movement. Zig-zags will
-//       be performed in whichever dimension is smallest. As an example,
-//       sending "G12 P1 S1 T3" will execute:
-//
-//          --
-//         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
-//         |           |    /  \      /  \      /  \    |
-//       A |           |   /    \    /    \    /    \   |
-//         |           |  /      \  /      \  /      \  |
-//         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
-//          --         +--------------------------------+
-//                       |________|_________|_________|
-//                           T1        T2        T3
-//
-//   P2: This starts a circular pattern with circle with middle in
-//       NOZZLE_CLEAN_CIRCLE_MIDDLE radius of R and stroke count of S.
-//       Before starting the circle nozzle goes to NOZZLE_CLEAN_START_POINT.
-//
-// Caveats: End point Z should use the same value as Start point Z.
-//
-// Attention: This is an EXPERIMENTAL feature, in the future the G-code arguments
-// may change to add new functionality like different wipe patterns.
-//
+/**
+ * Clean Nozzle Feature -- EXPERIMENTAL
+ *
+ * Adds the G12 command to perform a nozzle cleaning process.
+ *
+ * Parameters:
+ *   P  Pattern
+ *   S  Strokes / Repetitions
+ *   T  Triangles (P1 only)
+ *
+ * Patterns:
+ *   P0  Straight line (default). This process requires a sponge type material
+ *       at a fixed bed location. "S" specifies strokes (i.e. back-forth motions)
+ *       between the start / end points.
+ *
+ *   P1  Zig-zag pattern between (X0, Y0) and (X1, Y1), "T" specifies the
+ *       number of zig-zag triangles to do. "S" defines the number of strokes.
+ *       Zig-zags are done in whichever is the narrower dimension.
+ *       For example, "G12 P1 S1 T3" will execute:
+ *
+ *          --
+ *         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
+ *         |           |    /  \      /  \      /  \    |
+ *       A |           |   /    \    /    \    /    \   |
+ *         |           |  /      \  /      \  /      \  |
+ *         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
+ *          --         +--------------------------------+
+ *                       |________|_________|_________|
+ *                           T1        T2        T3
+ *
+ *   P2  Circular pattern with middle at NOZZLE_CLEAN_CIRCLE_MIDDLE.
+ *       "R" specifies the radius. "S" specifies the stroke count.
+ *       Before starting, the nozzle moves to NOZZLE_CLEAN_START_POINT.
+ *
+ *   Caveats: The ending Z should be the same as starting Z.
+ * Attention: EXPERIMENTAL. G-code arguments may change.
+ *
+ */
 //#define NOZZLE_CLEAN_FEATURE
 
 #if ENABLED(NOZZLE_CLEAN_FEATURE)
   #define NOZZLE_CLEAN_GOBACK
 #endif
 
-//
-// Print job timer
-//
-// Enable this option to automatically start and stop the
-// print job timer when M104/M109/M190 commands are received.
-// M104 (extruder without wait) - high temp = none, low temp = stop timer
-// M109 (extruder with wait) - high temp = start timer, low temp = stop timer
-// M190 (bed with wait) - high temp = start timer, low temp = none
-//
-// In all cases the timer can be started and stopped using
-// the following commands:
-//
-// - M75  - Start the print job timer
-// - M76  - Pause the print job timer
-// - M77  - Stop the print job timer
+/**
+ * Print Job Timer
+ *
+ * Automatically start and stop the print job timer on M104/M109/M190.
+ *
+ *   M104 (hotend, no wait) - high temp = none,        low temp = stop timer
+ *   M109 (hotend, wait)    - high temp = start timer, low temp = stop timer
+ *   M190 (bed, wait)       - high temp = start timer, low temp = none
+ *
+ * The timer can also be controlled with the following commands:
+ *
+ *   M75 - Start the print job timer
+ *   M76 - Pause the print job timer
+ *   M77 - Stop the print job timer
+ */
 #define PRINTJOB_TIMER_AUTOSTART
 
-//
-// Print Counter
-//
-// When enabled Marlin will keep track of some print statistical data such as:
-//  - Total print jobs
-//  - Total successful print jobs
-//  - Total failed print jobs
-//  - Total time printing
-//
-// This information can be viewed by the M78 command.
+/**
+ * Print Counter
+ *
+ * Track statistical data such as:
+ *
+ *  - Total print jobs
+ *  - Total successful print jobs
+ *  - Total failed print jobs
+ *  - Total time printing
+ *
+ * View the current statistics with M78.
+ */
 //#define PRINTCOUNTER
 
 //=============================================================================
 
 // @section lcd
 
-//
-// LCD LANGUAGE
-//
-// Here you may choose the language used by Marlin on the LCD menus, the following
-// list of languages are available:
-//    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
-//    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
-//
-// :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
-//
+/**
+ * LCD LANGUAGE
+ *
+ * Select the language to display on the LCD. These languages are available:
+ *
+ *    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
+ *    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
+ *
+ * :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
+ */
 //#define LCD_LANGUAGE en
 
-//
-// LCD Character Set
-//
-// Note: This option is NOT applicable to Graphical Displays.
-//
-// All character-based LCD's provide ASCII plus one of these
-// language extensions:
-//
-//  - JAPANESE ... the most common
-//  - WESTERN  ... with more accented characters
-//  - CYRILLIC ... for the Russian language
-//
-// To determine the language extension installed on your controller:
-//
-//  - Compile and upload with LCD_LANGUAGE set to 'test'
-//  - Click the controller to view the LCD menu
-//  - The LCD will display Japanese, Western, or Cyrillic text
-//
-// See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-// :['JAPANESE', 'WESTERN', 'CYRILLIC']
-//
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCDs provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https: *github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE', 'WESTERN', 'CYRILLIC']
+ */
 #define DISPLAY_CHARSET_HD44780 JAPANESE
 
-//
-// LCD TYPE
-//
-// You may choose ULTRA_LCD if you have character based LCD with 16x2, 16x4, 20x2,
-// 20x4 char/lines or DOGLCD for the full graphics display with 128x64 pixels
-// (ST7565R family). (This option will be set automatically for certain displays.)
-//
-// IMPORTANT NOTE: The U8glib library is required for Full Graphic Display!
-//                 https://github.com/olikraus/U8glib_Arduino
-//
+/**
+ * LCD TYPE
+ *
+ * Enable ULTRA_LCD for a 16x2, 16x4, 20x2, or 20x4 character-based LCD.
+ * Enable DOGLCD for a 128x64 (ST7565R) Full Graphical Display.
+ * (These options will be enabled automatically for most displays.)
+ *
+ * IMPORTANT: The U8glib library is required for Full Graphic Display!
+ *            https://github.com/olikraus/U8glib_Arduino
+ */
 #define ULTRA_LCD   // Character based
 //#define DOGLCD      // Full graphics display
 
-//
-// SD CARD
-//
-// SD Card support is disabled by default. If your controller has an SD slot,
-// you must uncomment the following option or it won't work.
-//
+/**
+ * SD CARD
+ *
+ * SD Card support is disabled by default. If your controller has an SD slot,
+ * you must uncomment the following option or it won't work.
+ *
+ */
 #define SDSUPPORT
 
-//
-// SD CARD: SPI SPEED
-//
-// Uncomment ONE of the following items to use a slower SPI transfer
-// speed. This is usually required if you're getting volume init errors.
-//
+/**
+ * SD CARD: SPI SPEED
+ *
+ * Enable one of the following items for a slower SPI transfer speed.
+ * This may be required to resolve "volume init" errors.
+ */
 //#define SPI_SPEED SPI_HALF_SPEED
 //#define SPI_SPEED SPI_QUARTER_SPEED
 //#define SPI_SPEED SPI_EIGHTH_SPEED
 
-//
-// SD CARD: ENABLE CRC
-//
-// Use CRC checks and retries on the SD communication.
-//
+/**
+ * SD CARD: ENABLE CRC
+ *
+ * Use CRC checks and retries on the SD communication.
+ */
 //#define SD_CHECK_AND_RETRY
 
 //
  */
 
 //
-// This option reverses the encoder direction everywhere
+// This option reverses the encoder direction everywhere.
 //
 //  Set this option if CLOCKWISE causes values to DECREASE
 //

Marlin/example_configurations/Hephestos_2/Configuration.h

 #define PREHEAT_2_TEMP_BED    110
 #define PREHEAT_2_FAN_SPEED     0 // Value from 0 to 255
 
-//
-// Nozzle Park -- EXPERIMENTAL
-//
-// When enabled allows the user to define a special XYZ position, inside the
-// machine's topology, to park the nozzle when idle or when receiving the G27
-// command.
-//
-// The "P" paramenter controls what is the action applied to the Z axis:
-//    P0: (Default) If current Z-pos is lower than Z-park then the nozzle will
-//        be raised to reach Z-park height.
-//
-//    P1: No matter the current Z-pos, the nozzle will be raised/lowered to
-//        reach Z-park height.
-//
-//    P2: The nozzle height will be raised by Z-park amount but never going over
-//        the machine's limit of Z_MAX_POS.
-//
+/**
+ * Nozzle Park -- EXPERIMENTAL
+ *
+ * Park the nozzle at the given XYZ position on idle or G27.
+ *
+ * The "P" parameter controls the action applied to the Z axis:
+ *
+ *    P0  (Default) If Z is below park Z raise the nozzle.
+ *    P1  Raise the nozzle always to Z-park height.
+ *    P2  Raise the nozzle by Z-park amount, limited to Z_MAX_POS.
+ */
 #define NOZZLE_PARK_FEATURE
 
 #if ENABLED(NOZZLE_PARK_FEATURE)
   #define NOZZLE_PARK_POINT { (X_MIN_POS + 10), (Y_MAX_POS - 10), 10 }
 #endif
 
-//
-// Clean Nozzle Feature -- EXPERIMENTAL
-//
-// When enabled allows the user to send G12 to start the nozzle cleaning
-// process, the G-Code accepts two parameters:
-//   "P" for pattern selection
-//   "S" for defining the number of strokes/repetitions
-//
-// Available list of patterns:
-//   P0: This is the default pattern, this process requires a sponge type
-//       material at a fixed bed location. S defines "strokes" i.e.
-//       back-and-forth movements between the starting and end points.
-//
-//   P1: This starts a zig-zag pattern between (X0, Y0) and (X1, Y1), "T"
-//       defines the number of zig-zag triangles to be done. "S" defines the
-//       number of strokes aka one back-and-forth movement. Zig-zags will
-//       be performed in whichever dimension is smallest. As an example,
-//       sending "G12 P1 S1 T3" will execute:
-//
-//          --
-//         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
-//         |           |    /  \      /  \      /  \    |
-//       A |           |   /    \    /    \    /    \   |
-//         |           |  /      \  /      \  /      \  |
-//         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
-//          --         +--------------------------------+
-//                       |________|_________|_________|
-//                           T1        T2        T3
-//
-//   P2: This starts a circular pattern with circle with middle in
-//       NOZZLE_CLEAN_CIRCLE_MIDDLE radius of R and stroke count of S.
-//       Before starting the circle nozzle goes to NOZZLE_CLEAN_START_POINT.
-//
-// Caveats: End point Z should use the same value as Start point Z.
-//
-// Attention: This is an EXPERIMENTAL feature, in the future the G-code arguments
-// may change to add new functionality like different wipe patterns.
-//
+/**
+ * Clean Nozzle Feature -- EXPERIMENTAL
+ *
+ * Adds the G12 command to perform a nozzle cleaning process.
+ *
+ * Parameters:
+ *   P  Pattern
+ *   S  Strokes / Repetitions
+ *   T  Triangles (P1 only)
+ *
+ * Patterns:
+ *   P0  Straight line (default). This process requires a sponge type material
+ *       at a fixed bed location. "S" specifies strokes (i.e. back-forth motions)
+ *       between the start / end points.
+ *
+ *   P1  Zig-zag pattern between (X0, Y0) and (X1, Y1), "T" specifies the
+ *       number of zig-zag triangles to do. "S" defines the number of strokes.
+ *       Zig-zags are done in whichever is the narrower dimension.
+ *       For example, "G12 P1 S1 T3" will execute:
+ *
+ *          --
+ *         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
+ *         |           |    /  \      /  \      /  \    |
+ *       A |           |   /    \    /    \    /    \   |
+ *         |           |  /      \  /      \  /      \  |
+ *         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
+ *          --         +--------------------------------+
+ *                       |________|_________|_________|
+ *                           T1        T2        T3
+ *
+ *   P2  Circular pattern with middle at NOZZLE_CLEAN_CIRCLE_MIDDLE.
+ *       "R" specifies the radius. "S" specifies the stroke count.
+ *       Before starting, the nozzle moves to NOZZLE_CLEAN_START_POINT.
+ *
+ *   Caveats: The ending Z should be the same as starting Z.
+ * Attention: EXPERIMENTAL. G-code arguments may change.
+ *
+ */
 #define NOZZLE_CLEAN_FEATURE
 
 #if ENABLED(NOZZLE_CLEAN_FEATURE)
   //#define NOZZLE_CLEAN_GOBACK
 #endif
 
-//
-// Print job timer
-//
-// Enable this option to automatically start and stop the
-// print job timer when M104/M109/M190 commands are received.
-// M104 (extruder without wait) - high temp = none, low temp = stop timer
-// M109 (extruder with wait) - high temp = start timer, low temp = stop timer
-// M190 (bed with wait) - high temp = start timer, low temp = none
-//
-// In all cases the timer can be started and stopped using
-// the following commands:
-//
-// - M75  - Start the print job timer
-// - M76  - Pause the print job timer
-// - M77  - Stop the print job timer
+/**
+ * Print Job Timer
+ *
+ * Automatically start and stop the print job timer on M104/M109/M190.
+ *
+ *   M104 (hotend, no wait) - high temp = none,        low temp = stop timer
+ *   M109 (hotend, wait)    - high temp = start timer, low temp = stop timer
+ *   M190 (bed, wait)       - high temp = start timer, low temp = none
+ *
+ * The timer can also be controlled with the following commands:
+ *
+ *   M75 - Start the print job timer
+ *   M76 - Pause the print job timer
+ *   M77 - Stop the print job timer
+ */
 #define PRINTJOB_TIMER_AUTOSTART
 
-//
-// Print Counter
-//
-// When enabled Marlin will keep track of some print statistical data such as:
-//  - Total print jobs
-//  - Total successful print jobs
-//  - Total failed print jobs
-//  - Total time printing
-//
-// This information can be viewed by the M78 command.
+/**
+ * Print Counter
+ *
+ * Track statistical data such as:
+ *
+ *  - Total print jobs
+ *  - Total successful print jobs
+ *  - Total failed print jobs
+ *  - Total time printing
+ *
+ * View the current statistics with M78.
+ */
 #define PRINTCOUNTER
 
 //=============================================================================
 
 // @section lcd
 
-//
-// LCD LANGUAGE
-//
-// Here you may choose the language used by Marlin on the LCD menus, the following
-// list of languages are available:
-//    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
-//    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
-//
-// :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
-//
+/**
+ * LCD LANGUAGE
+ *
+ * Select the language to display on the LCD. These languages are available:
+ *
+ *    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
+ *    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
+ *
+ * :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
+ */
 #define LCD_LANGUAGE en
 
-//
-// LCD Character Set
-//
-// Note: This option is NOT applicable to Graphical Displays.
-//
-// All character-based LCD's provide ASCII plus one of these
-// language extensions:
-//
-//  - JAPANESE ... the most common
-//  - WESTERN  ... with more accented characters
-//  - CYRILLIC ... for the Russian language
-//
-// To determine the language extension installed on your controller:
-//
-//  - Compile and upload with LCD_LANGUAGE set to 'test'
-//  - Click the controller to view the LCD menu
-//  - The LCD will display Japanese, Western, or Cyrillic text
-//
-// See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-// :['JAPANESE', 'WESTERN', 'CYRILLIC']
-//
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCDs provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https: *github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE', 'WESTERN', 'CYRILLIC']
+ */
 #define DISPLAY_CHARSET_HD44780 JAPANESE
 
-//
-// LCD TYPE
-//
-// You may choose ULTRA_LCD if you have character based LCD with 16x2, 16x4, 20x2,
-// 20x4 char/lines or DOGLCD for the full graphics display with 128x64 pixels
-// (ST7565R family). (This option will be set automatically for certain displays.)
-//
-// IMPORTANT NOTE: The U8glib library is required for Full Graphic Display!
-//                 https://github.com/olikraus/U8glib_Arduino
-//
+/**
+ * LCD TYPE
+ *
+ * Enable ULTRA_LCD for a 16x2, 16x4, 20x2, or 20x4 character-based LCD.
+ * Enable DOGLCD for a 128x64 (ST7565R) Full Graphical Display.
+ * (These options will be enabled automatically for most displays.)
+ *
+ * IMPORTANT: The U8glib library is required for Full Graphic Display!
+ *            https://github.com/olikraus/U8glib_Arduino
+ */
 //#define ULTRA_LCD   // Character based
 //#define DOGLCD      // Full graphics display
 
-//
-// SD CARD
-//
-// SD Card support is disabled by default. If your controller has an SD slot,
-// you must uncomment the following option or it won't work.
-//
+/**
+ * SD CARD
+ *
+ * SD Card support is disabled by default. If your controller has an SD slot,
+ * you must uncomment the following option or it won't work.
+ *
+ */
 #define SDSUPPORT
 
-//
-// SD CARD: SPI SPEED
-//
-// Uncomment ONE of the following items to use a slower SPI transfer
-// speed. This is usually required if you're getting volume init errors.
-//
+/**
+ * SD CARD: SPI SPEED
+ *
+ * Enable one of the following items for a slower SPI transfer speed.
+ * This may be required to resolve "volume init" errors.
+ */
 //#define SPI_SPEED SPI_HALF_SPEED
 //#define SPI_SPEED SPI_QUARTER_SPEED
 //#define SPI_SPEED SPI_EIGHTH_SPEED
 
-//
-// SD CARD: ENABLE CRC
-//
-// Use CRC checks and retries on the SD communication.
-//
+/**
+ * SD CARD: ENABLE CRC
+ *
+ * Use CRC checks and retries on the SD communication.
+ */
 #define SD_CHECK_AND_RETRY
 
 //
  */
 
 //
-// This option reverses the encoder direction everywhere
+// This option reverses the encoder direction everywhere.
 //
 //  Set this option if CLOCKWISE causes values to DECREASE
 //

Marlin/example_configurations/K8200/Configuration.h

 #define PREHEAT_2_TEMP_BED     60 // K8200: ABS / set back to 110 if you have an upgraded heatbed power supply
 #define PREHEAT_2_FAN_SPEED     0 // Value from 0 to 255
 
-//
-// Nozzle Park -- EXPERIMENTAL
-//
-// When enabled allows the user to define a special XYZ position, inside the
-// machine's topology, to park the nozzle when idle or when receiving the G27
-// command.
-//
-// The "P" paramenter controls what is the action applied to the Z axis:
-//    P0: (Default) If current Z-pos is lower than Z-park then the nozzle will
-//        be raised to reach Z-park height.
-//
-//    P1: No matter the current Z-pos, the nozzle will be raised/lowered to
-//        reach Z-park height.
-//
-//    P2: The nozzle height will be raised by Z-park amount but never going over
-//        the machine's limit of Z_MAX_POS.
-//
+/**
+ * Nozzle Park -- EXPERIMENTAL
+ *
+ * Park the nozzle at the given XYZ position on idle or G27.
+ *
+ * The "P" parameter controls the action applied to the Z axis:
+ *
+ *    P0  (Default) If Z is below park Z raise the nozzle.
+ *    P1  Raise the nozzle always to Z-park height.
+ *    P2  Raise the nozzle by Z-park amount, limited to Z_MAX_POS.
+ */
 //#define NOZZLE_PARK_FEATURE
 
 #if ENABLED(NOZZLE_PARK_FEATURE)
   #define NOZZLE_PARK_POINT { (X_MIN_POS + 10), (Y_MAX_POS - 10), 20 }
 #endif
 
-//
-// Clean Nozzle Feature -- EXPERIMENTAL
-//
-// When enabled allows the user to send G12 to start the nozzle cleaning
-// process, the G-Code accepts two parameters:
-//   "P" for pattern selection
-//   "S" for defining the number of strokes/repetitions
-//
-// Available list of patterns:
-//   P0: This is the default pattern, this process requires a sponge type
-//       material at a fixed bed location. S defines "strokes" i.e.
-//       back-and-forth movements between the starting and end points.
-//
-//   P1: This starts a zig-zag pattern between (X0, Y0) and (X1, Y1), "T"
-//       defines the number of zig-zag triangles to be done. "S" defines the
-//       number of strokes aka one back-and-forth movement. Zig-zags will
-//       be performed in whichever dimension is smallest. As an example,
-//       sending "G12 P1 S1 T3" will execute:
-//
-//          --
-//         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
-//         |           |    /  \      /  \      /  \    |
-//       A |           |   /    \    /    \    /    \   |
-//         |           |  /      \  /      \  /      \  |
-//         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
-//          --         +--------------------------------+
-//                       |________|_________|_________|
-//                           T1        T2        T3
-//
-//   P2: This starts a circular pattern with circle with middle in
-//       NOZZLE_CLEAN_CIRCLE_MIDDLE radius of R and stroke count of S.
-//       Before starting the circle nozzle goes to NOZZLE_CLEAN_START_POINT.
-//
-// Caveats: End point Z should use the same value as Start point Z.
-//
-// Attention: This is an EXPERIMENTAL feature, in the future the G-code arguments
-// may change to add new functionality like different wipe patterns.
-//
+/**
+ * Clean Nozzle Feature -- EXPERIMENTAL
+ *
+ * Adds the G12 command to perform a nozzle cleaning process.
+ *
+ * Parameters:
+ *   P  Pattern
+ *   S  Strokes / Repetitions
+ *   T  Triangles (P1 only)
+ *
+ * Patterns:
+ *   P0  Straight line (default). This process requires a sponge type material
+ *       at a fixed bed location. "S" specifies strokes (i.e. back-forth motions)
+ *       between the start / end points.
+ *
+ *   P1  Zig-zag pattern between (X0, Y0) and (X1, Y1), "T" specifies the
+ *       number of zig-zag triangles to do. "S" defines the number of strokes.
+ *       Zig-zags are done in whichever is the narrower dimension.
+ *       For example, "G12 P1 S1 T3" will execute:
+ *
+ *          --
+ *         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
+ *         |           |    /  \      /  \      /  \    |
+ *       A |           |   /    \    /    \    /    \   |
+ *         |           |  /      \  /      \  /      \  |
+ *         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
+ *          --         +--------------------------------+
+ *                       |________|_________|_________|
+ *                           T1        T2        T3
+ *
+ *   P2  Circular pattern with middle at NOZZLE_CLEAN_CIRCLE_MIDDLE.
+ *       "R" specifies the radius. "S" specifies the stroke count.
+ *       Before starting, the nozzle moves to NOZZLE_CLEAN_START_POINT.
+ *
+ *   Caveats: The ending Z should be the same as starting Z.
+ * Attention: EXPERIMENTAL. G-code arguments may change.
+ *
+ */
 //#define NOZZLE_CLEAN_FEATURE
 
 #if ENABLED(NOZZLE_CLEAN_FEATURE)
   #define NOZZLE_CLEAN_GOBACK
 #endif
 
-//
-// Print job timer
-//
-// Enable this option to automatically start and stop the
-// print job timer when M104/M109/M190 commands are received.
-// M104 (extruder without wait) - high temp = none, low temp = stop timer
-// M109 (extruder with wait) - high temp = start timer, low temp = stop timer
-// M190 (bed with wait) - high temp = start timer, low temp = none
-//
-// In all cases the timer can be started and stopped using
-// the following commands:
-//
-// - M75  - Start the print job timer
-// - M76  - Pause the print job timer
-// - M77  - Stop the print job timer
+/**
+ * Print Job Timer
+ *
+ * Automatically start and stop the print job timer on M104/M109/M190.
+ *
+ *   M104 (hotend, no wait) - high temp = none,        low temp = stop timer
+ *   M109 (hotend, wait)    - high temp = start timer, low temp = stop timer
+ *   M190 (bed, wait)       - high temp = start timer, low temp = none
+ *
+ * The timer can also be controlled with the following commands:
+ *
+ *   M75 - Start the print job timer
+ *   M76 - Pause the print job timer
+ *   M77 - Stop the print job timer
+ */
 #define PRINTJOB_TIMER_AUTOSTART
 
-//
-// Print Counter
-//
-// When enabled Marlin will keep track of some print statistical data such as:
-//  - Total print jobs
-//  - Total successful print jobs
-//  - Total failed print jobs
-//  - Total time printing
-//
-// This information can be viewed by the M78 command.
+/**
+ * Print Counter
+ *
+ * Track statistical data such as:
+ *
+ *  - Total print jobs
+ *  - Total successful print jobs
+ *  - Total failed print jobs
+ *  - Total time printing
+ *
+ * View the current statistics with M78.
+ */
 #define PRINTCOUNTER
 
 //=============================================================================
 // K8200: for Display VM8201 with SD slot
 #if ENABLED(K8200_VM8201)
 
-//
-// LCD LANGUAGE
-//
-// Here you may choose the language used by Marlin on the LCD menus, the following
-// list of languages are available:
-//    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
-//    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
-//
-// :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
-//
+/**
+ * LCD LANGUAGE
+ *
+ * Select the language to display on the LCD. These languages are available:
+ *
+ *    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
+ *    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
+ *
+ * :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
+ */
 #define LCD_LANGUAGE en
 
-//
-// LCD Character Set
-//
-// Note: This option is NOT applicable to Graphical Displays.
-//
-// All character-based LCD's provide ASCII plus one of these
-// language extensions:
-//
-//  - JAPANESE ... the most common
-//  - WESTERN  ... with more accented characters
-//  - CYRILLIC ... for the Russian language
-//
-// To determine the language extension installed on your controller:
-//
-//  - Compile and upload with LCD_LANGUAGE set to 'test'
-//  - Click the controller to view the LCD menu
-//  - The LCD will display Japanese, Western, or Cyrillic text
-//
-// See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-// :['JAPANESE', 'WESTERN', 'CYRILLIC']
-//
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCDs provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https: *github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE', 'WESTERN', 'CYRILLIC']
+ */
 #define DISPLAY_CHARSET_HD44780 JAPANESE // K8200: for Display VM8201 // this is the most common hardware
 
-//
-// LCD TYPE
-//
-// You may choose ULTRA_LCD if you have character based LCD with 16x2, 16x4, 20x2,
-// 20x4 char/lines or DOGLCD for the full graphics display with 128x64 pixels
-// (ST7565R family). (This option will be set automatically for certain displays.)
-//
-// IMPORTANT NOTE: The U8glib library is required for Full Graphic Display!
-//                 https://github.com/olikraus/U8glib_Arduino
-//
+/**
+ * LCD TYPE
+ *
+ * Enable ULTRA_LCD for a 16x2, 16x4, 20x2, or 20x4 character-based LCD.
+ * Enable DOGLCD for a 128x64 (ST7565R) Full Graphical Display.
+ * (These options will be enabled automatically for most displays.)
+ *
+ * IMPORTANT: The U8glib library is required for Full Graphic Display!
+ *            https://github.com/olikraus/U8glib_Arduino
+ */
 //#define ULTRA_LCD   // Character based
 //#define DOGLCD      // Full graphics display
 
-//
-// SD CARD
-//
-// SD Card support is disabled by default. If your controller has an SD slot,
-// you must uncomment the following option or it won't work.
-//
+/**
+ * SD CARD
+ *
+ * SD Card support is disabled by default. If your controller has an SD slot,
+ * you must uncomment the following option or it won't work.
+ *
+ */
 #define SDSUPPORT
 
-//
-// SD CARD: SPI SPEED
-//
-// Uncomment ONE of the following items to use a slower SPI transfer
-// speed. This is usually required if you're getting volume init errors.
-//
+/**
+ * SD CARD: SPI SPEED
+ *
+ * Enable one of the following items for a slower SPI transfer speed.
+ * This may be required to resolve "volume init" errors.
+ */
 //#define SPI_SPEED SPI_HALF_SPEED
 //#define SPI_SPEED SPI_QUARTER_SPEED
 //#define SPI_SPEED SPI_EIGHTH_SPEED
 
-//
-// SD CARD: ENABLE CRC
-//
-// Use CRC checks and retries on the SD communication.
-//
+/**
+ * SD CARD: ENABLE CRC
+ *
+ * Use CRC checks and retries on the SD communication.
+ */
 #define SD_CHECK_AND_RETRY
 
 //
  */
 
 //
-// This option reverses the encoder direction everywhere
+// This option reverses the encoder direction everywhere.
 //
 //  Set this option if CLOCKWISE causes values to DECREASE
 //

Marlin/example_configurations/K8400/Configuration.h

 #define PREHEAT_2_TEMP_BED      0
 #define PREHEAT_2_FAN_SPEED   165 // Value from 0 to 255
 
-//
-// Nozzle Park -- EXPERIMENTAL
-//
-// When enabled allows the user to define a special XYZ position, inside the
-// machine's topology, to park the nozzle when idle or when receiving the G27
-// command.
-//
-// The "P" paramenter controls what is the action applied to the Z axis:
-//    P0: (Default) If current Z-pos is lower than Z-park then the nozzle will
-//        be raised to reach Z-park height.
-//
-//    P1: No matter the current Z-pos, the nozzle will be raised/lowered to
-//        reach Z-park height.
-//
-//    P2: The nozzle height will be raised by Z-park amount but never going over
-//        the machine's limit of Z_MAX_POS.
-//
+/**
+ * Nozzle Park -- EXPERIMENTAL
+ *
+ * Park the nozzle at the given XYZ position on idle or G27.
+ *
+ * The "P" parameter controls the action applied to the Z axis:
+ *
+ *    P0  (Default) If Z is below park Z raise the nozzle.
+ *    P1  Raise the nozzle always to Z-park height.
+ *    P2  Raise the nozzle by Z-park amount, limited to Z_MAX_POS.
+ */
 //#define NOZZLE_PARK_FEATURE
 
 #if ENABLED(NOZZLE_PARK_FEATURE)
   #define NOZZLE_PARK_POINT { (X_MIN_POS + 10), (Y_MAX_POS - 10), 20 }
 #endif
 
-//
-// Clean Nozzle Feature -- EXPERIMENTAL
-//
-// When enabled allows the user to send G12 to start the nozzle cleaning
-// process, the G-Code accepts two parameters:
-//   "P" for pattern selection
-//   "S" for defining the number of strokes/repetitions
-//
-// Available list of patterns:
-//   P0: This is the default pattern, this process requires a sponge type
-//       material at a fixed bed location. S defines "strokes" i.e.
-//       back-and-forth movements between the starting and end points.
-//
-//   P1: This starts a zig-zag pattern between (X0, Y0) and (X1, Y1), "T"
-//       defines the number of zig-zag triangles to be done. "S" defines the
-//       number of strokes aka one back-and-forth movement. Zig-zags will
-//       be performed in whichever dimension is smallest. As an example,
-//       sending "G12 P1 S1 T3" will execute:
-//
-//          --
-//         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
-//         |           |    /  \      /  \      /  \    |
-//       A |           |   /    \    /    \    /    \   |
-//         |           |  /      \  /      \  /      \  |
-//         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
-//          --         +--------------------------------+
-//                       |________|_________|_________|
-//                           T1        T2        T3
-//
-//   P2: This starts a circular pattern with circle with middle in
-//       NOZZLE_CLEAN_CIRCLE_MIDDLE radius of R and stroke count of S.
-//       Before starting the circle nozzle goes to NOZZLE_CLEAN_START_POINT.
-//
-// Caveats: End point Z should use the same value as Start point Z.
-//
-// Attention: This is an EXPERIMENTAL feature, in the future the G-code arguments
-// may change to add new functionality like different wipe patterns.
-//
+/**
+ * Clean Nozzle Feature -- EXPERIMENTAL
+ *
+ * Adds the G12 command to perform a nozzle cleaning process.
+ *
+ * Parameters:
+ *   P  Pattern
+ *   S  Strokes / Repetitions
+ *   T  Triangles (P1 only)
+ *
+ * Patterns:
+ *   P0  Straight line (default). This process requires a sponge type material
+ *       at a fixed bed location. "S" specifies strokes (i.e. back-forth motions)
+ *       between the start / end points.
+ *
+ *   P1  Zig-zag pattern between (X0, Y0) and (X1, Y1), "T" specifies the
+ *       number of zig-zag triangles to do. "S" defines the number of strokes.
+ *       Zig-zags are done in whichever is the narrower dimension.
+ *       For example, "G12 P1 S1 T3" will execute:
+ *
+ *          --
+ *         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
+ *         |           |    /  \      /  \      /  \    |
+ *       A |           |   /    \    /    \    /    \   |
+ *         |           |  /      \  /      \  /      \  |
+ *         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
+ *          --         +--------------------------------+
+ *                       |________|_________|_________|
+ *                           T1        T2        T3
+ *
+ *   P2  Circular pattern with middle at NOZZLE_CLEAN_CIRCLE_MIDDLE.
+ *       "R" specifies the radius. "S" specifies the stroke count.
+ *       Before starting, the nozzle moves to NOZZLE_CLEAN_START_POINT.
+ *
+ *   Caveats: The ending Z should be the same as starting Z.
+ * Attention: EXPERIMENTAL. G-code arguments may change.
+ *
+ */
 //#define NOZZLE_CLEAN_FEATURE
 
 #if ENABLED(NOZZLE_CLEAN_FEATURE)
   #define NOZZLE_CLEAN_GOBACK
 #endif
 
-//
-// Print job timer
-//
-// Enable this option to automatically start and stop the
-// print job timer when M104/M109/M190 commands are received.
-// M104 (extruder without wait) - high temp = none, low temp = stop timer
-// M109 (extruder with wait) - high temp = start timer, low temp = stop timer
-// M190 (bed with wait) - high temp = start timer, low temp = none
-//
-// In all cases the timer can be started and stopped using
-// the following commands:
-//
-// - M75  - Start the print job timer
-// - M76  - Pause the print job timer
-// - M77  - Stop the print job timer
+/**
+ * Print Job Timer
+ *
+ * Automatically start and stop the print job timer on M104/M109/M190.
+ *
+ *   M104 (hotend, no wait) - high temp = none,        low temp = stop timer
+ *   M109 (hotend, wait)    - high temp = start timer, low temp = stop timer
+ *   M190 (bed, wait)       - high temp = start timer, low temp = none
+ *
+ * The timer can also be controlled with the following commands:
+ *
+ *   M75 - Start the print job timer
+ *   M76 - Pause the print job timer
+ *   M77 - Stop the print job timer
+ */
 #define PRINTJOB_TIMER_AUTOSTART
 
-//
-// Print Counter
-//
-// When enabled Marlin will keep track of some print statistical data such as:
-//  - Total print jobs
-//  - Total successful print jobs
-//  - Total failed print jobs
-//  - Total time printing
-//
-// This information can be viewed by the M78 command.
+/**
+ * Print Counter
+ *
+ * Track statistical data such as:
+ *
+ *  - Total print jobs
+ *  - Total successful print jobs
+ *  - Total failed print jobs
+ *  - Total time printing
+ *
+ * View the current statistics with M78.
+ */
 //#define PRINTCOUNTER
 
 //=============================================================================
 
 // @section lcd
 
-//
-// LCD LANGUAGE
-//
-// Here you may choose the language used by Marlin on the LCD menus, the following
-// list of languages are available:
-//    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
-//    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
-//
-// :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
-//
+/**
+ * LCD LANGUAGE
+ *
+ * Select the language to display on the LCD. These languages are available:
+ *
+ *    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
+ *    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
+ *
+ * :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
+ */
 #define LCD_LANGUAGE en
 
-//
-// LCD Character Set
-//
-// Note: This option is NOT applicable to Graphical Displays.
-//
-// All character-based LCD's provide ASCII plus one of these
-// language extensions:
-//
-//  - JAPANESE ... the most common
-//  - WESTERN  ... with more accented characters
-//  - CYRILLIC ... for the Russian language
-//
-// To determine the language extension installed on your controller:
-//
-//  - Compile and upload with LCD_LANGUAGE set to 'test'
-//  - Click the controller to view the LCD menu
-//  - The LCD will display Japanese, Western, or Cyrillic text
-//
-// See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-// :['JAPANESE', 'WESTERN', 'CYRILLIC']
-//
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCDs provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https: *github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE', 'WESTERN', 'CYRILLIC']
+ */
 #define DISPLAY_CHARSET_HD44780 JAPANESE
 
-//
-// LCD TYPE
-//
-// You may choose ULTRA_LCD if you have character based LCD with 16x2, 16x4, 20x2,
-// 20x4 char/lines or DOGLCD for the full graphics display with 128x64 pixels
-// (ST7565R family). (This option will be set automatically for certain displays.)
-//
-// IMPORTANT NOTE: The U8glib library is required for Full Graphic Display!
-//                 https://github.com/olikraus/U8glib_Arduino
-//
+/**
+ * LCD TYPE
+ *
+ * Enable ULTRA_LCD for a 16x2, 16x4, 20x2, or 20x4 character-based LCD.
+ * Enable DOGLCD for a 128x64 (ST7565R) Full Graphical Display.
+ * (These options will be enabled automatically for most displays.)
+ *
+ * IMPORTANT: The U8glib library is required for Full Graphic Display!
+ *            https://github.com/olikraus/U8glib_Arduino
+ */
 #define ULTRA_LCD   // Character based
 //#define DOGLCD      // Full graphics display
 
-//
-// SD CARD
-//
-// SD Card support is disabled by default. If your controller has an SD slot,
-// you must uncomment the following option or it won't work.
-//
+/**
+ * SD CARD
+ *
+ * SD Card support is disabled by default. If your controller has an SD slot,
+ * you must uncomment the following option or it won't work.
+ *
+ */
 #define SDSUPPORT
 
-//
-// SD CARD: SPI SPEED
-//
-// Uncomment ONE of the following items to use a slower SPI transfer
-// speed. This is usually required if you're getting volume init errors.
-//
+/**
+ * SD CARD: SPI SPEED
+ *
+ * Enable one of the following items for a slower SPI transfer speed.
+ * This may be required to resolve "volume init" errors.
+ */
 //#define SPI_SPEED SPI_HALF_SPEED
 //#define SPI_SPEED SPI_QUARTER_SPEED
 //#define SPI_SPEED SPI_EIGHTH_SPEED
 
-//
-// SD CARD: ENABLE CRC
-//
-// Use CRC checks and retries on the SD communication.
-//
+/**
+ * SD CARD: ENABLE CRC
+ *
+ * Use CRC checks and retries on the SD communication.
+ */
 //#define SD_CHECK_AND_RETRY
 
 //
  */
 
 //
-// This option reverses the encoder direction everywhere
+// This option reverses the encoder direction everywhere.
 //
 //  Set this option if CLOCKWISE causes values to DECREASE
 //

Marlin/example_configurations/K8400/Dual-head/Configuration.h

 #define PREHEAT_2_TEMP_BED      0
 #define PREHEAT_2_FAN_SPEED   165 // Value from 0 to 255
 
-//
-// Nozzle Park -- EXPERIMENTAL
-//
-// When enabled allows the user to define a special XYZ position, inside the
-// machine's topology, to park the nozzle when idle or when receiving the G27
-// command.
-//
-// The "P" paramenter controls what is the action applied to the Z axis:
-//    P0: (Default) If current Z-pos is lower than Z-park then the nozzle will
-//        be raised to reach Z-park height.
-//
-//    P1: No matter the current Z-pos, the nozzle will be raised/lowered to
-//        reach Z-park height.
-//
-//    P2: The nozzle height will be raised by Z-park amount but never going over
-//        the machine's limit of Z_MAX_POS.
-//
+/**
+ * Nozzle Park -- EXPERIMENTAL
+ *
+ * Park the nozzle at the given XYZ position on idle or G27.
+ *
+ * The "P" parameter controls the action applied to the Z axis:
+ *
+ *    P0  (Default) If Z is below park Z raise the nozzle.
+ *    P1  Raise the nozzle always to Z-park height.
+ *    P2  Raise the nozzle by Z-park amount, limited to Z_MAX_POS.
+ */
 //#define NOZZLE_PARK_FEATURE
 
 #if ENABLED(NOZZLE_PARK_FEATURE)
   #define NOZZLE_PARK_POINT { (X_MIN_POS + 10), (Y_MAX_POS - 10), 20 }
 #endif
 
-//
-// Clean Nozzle Feature -- EXPERIMENTAL
-//
-// When enabled allows the user to send G12 to start the nozzle cleaning
-// process, the G-Code accepts two parameters:
-//   "P" for pattern selection
-//   "S" for defining the number of strokes/repetitions
-//
-// Available list of patterns:
-//   P0: This is the default pattern, this process requires a sponge type
-//       material at a fixed bed location. S defines "strokes" i.e.
-//       back-and-forth movements between the starting and end points.
-//
-//   P1: This starts a zig-zag pattern between (X0, Y0) and (X1, Y1), "T"
-//       defines the number of zig-zag triangles to be done. "S" defines the
-//       number of strokes aka one back-and-forth movement. Zig-zags will
-//       be performed in whichever dimension is smallest. As an example,
-//       sending "G12 P1 S1 T3" will execute:
-//
-//          --
-//         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
-//         |           |    /  \      /  \      /  \    |
-//       A |           |   /    \    /    \    /    \   |
-//         |           |  /      \  /      \  /      \  |
-//         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
-//          --         +--------------------------------+
-//                       |________|_________|_________|
-//                           T1        T2        T3
-//
-//   P2: This starts a circular pattern with circle with middle in
-//       NOZZLE_CLEAN_CIRCLE_MIDDLE radius of R and stroke count of S.
-//       Before starting the circle nozzle goes to NOZZLE_CLEAN_START_POINT.
-//
-// Caveats: End point Z should use the same value as Start point Z.
-//
-// Attention: This is an EXPERIMENTAL feature, in the future the G-code arguments
-// may change to add new functionality like different wipe patterns.
-//
+/**
+ * Clean Nozzle Feature -- EXPERIMENTAL
+ *
+ * Adds the G12 command to perform a nozzle cleaning process.
+ *
+ * Parameters:
+ *   P  Pattern
+ *   S  Strokes / Repetitions
+ *   T  Triangles (P1 only)
+ *
+ * Patterns:
+ *   P0  Straight line (default). This process requires a sponge type material
+ *       at a fixed bed location. "S" specifies strokes (i.e. back-forth motions)
+ *       between the start / end points.
+ *
+ *   P1  Zig-zag pattern between (X0, Y0) and (X1, Y1), "T" specifies the
+ *       number of zig-zag triangles to do. "S" defines the number of strokes.
+ *       Zig-zags are done in whichever is the narrower dimension.
+ *       For example, "G12 P1 S1 T3" will execute:
+ *
+ *          --
+ *         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
+ *         |           |    /  \      /  \      /  \    |
+ *       A |           |   /    \    /    \    /    \   |
+ *         |           |  /      \  /      \  /      \  |
+ *         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
+ *          --         +--------------------------------+
+ *                       |________|_________|_________|
+ *                           T1        T2        T3
+ *
+ *   P2  Circular pattern with middle at NOZZLE_CLEAN_CIRCLE_MIDDLE.
+ *       "R" specifies the radius. "S" specifies the stroke count.
+ *       Before starting, the nozzle moves to NOZZLE_CLEAN_START_POINT.
+ *
+ *   Caveats: The ending Z should be the same as starting Z.
+ * Attention: EXPERIMENTAL. G-code arguments may change.
+ *
+ */
 //#define NOZZLE_CLEAN_FEATURE
 
 #if ENABLED(NOZZLE_CLEAN_FEATURE)
   #define NOZZLE_CLEAN_GOBACK
 #endif
 
-//
-// Print job timer
-//
-// Enable this option to automatically start and stop the
-// print job timer when M104/M109/M190 commands are received.
-// M104 (extruder without wait) - high temp = none, low temp = stop timer
-// M109 (extruder with wait) - high temp = start timer, low temp = stop timer
-// M190 (bed with wait) - high temp = start timer, low temp = none
-//
-// In all cases the timer can be started and stopped using
-// the following commands:
-//
-// - M75  - Start the print job timer
-// - M76  - Pause the print job timer
-// - M77  - Stop the print job timer
+/**
+ * Print Job Timer
+ *
+ * Automatically start and stop the print job timer on M104/M109/M190.
+ *
+ *   M104 (hotend, no wait) - high temp = none,        low temp = stop timer
+ *   M109 (hotend, wait)    - high temp = start timer, low temp = stop timer
+ *   M190 (bed, wait)       - high temp = start timer, low temp = none
+ *
+ * The timer can also be controlled with the following commands:
+ *
+ *   M75 - Start the print job timer
+ *   M76 - Pause the print job timer
+ *   M77 - Stop the print job timer
+ */
 #define PRINTJOB_TIMER_AUTOSTART
 
-//
-// Print Counter
-//
-// When enabled Marlin will keep track of some print statistical data such as:
-//  - Total print jobs
-//  - Total successful print jobs
-//  - Total failed print jobs
-//  - Total time printing
-//
-// This information can be viewed by the M78 command.
+/**
+ * Print Counter
+ *
+ * Track statistical data such as:
+ *
+ *  - Total print jobs
+ *  - Total successful print jobs
+ *  - Total failed print jobs
+ *  - Total time printing
+ *
+ * View the current statistics with M78.
+ */
 //#define PRINTCOUNTER
 
 //=============================================================================
 
 // @section lcd
 
-//
-// LCD LANGUAGE
-//
-// Here you may choose the language used by Marlin on the LCD menus, the following
-// list of languages are available:
-//    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
-//    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
-//
-// :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
-//
+/**
+ * LCD LANGUAGE
+ *
+ * Select the language to display on the LCD. These languages are available:
+ *
+ *    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
+ *    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
+ *
+ * :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
+ */
 #define LCD_LANGUAGE en
 
-//
-// LCD Character Set
-//
-// Note: This option is NOT applicable to Graphical Displays.
-//
-// All character-based LCD's provide ASCII plus one of these
-// language extensions:
-//
-//  - JAPANESE ... the most common
-//  - WESTERN  ... with more accented characters
-//  - CYRILLIC ... for the Russian language
-//
-// To determine the language extension installed on your controller:
-//
-//  - Compile and upload with LCD_LANGUAGE set to 'test'
-//  - Click the controller to view the LCD menu
-//  - The LCD will display Japanese, Western, or Cyrillic text
-//
-// See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-// :['JAPANESE', 'WESTERN', 'CYRILLIC']
-//
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCDs provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https: *github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE', 'WESTERN', 'CYRILLIC']
+ */
 #define DISPLAY_CHARSET_HD44780 JAPANESE
 
-//
-// LCD TYPE
-//
-// You may choose ULTRA_LCD if you have character based LCD with 16x2, 16x4, 20x2,
-// 20x4 char/lines or DOGLCD for the full graphics display with 128x64 pixels
-// (ST7565R family). (This option will be set automatically for certain displays.)
-//
-// IMPORTANT NOTE: The U8glib library is required for Full Graphic Display!
-//                 https://github.com/olikraus/U8glib_Arduino
-//
+/**
+ * LCD TYPE
+ *
+ * Enable ULTRA_LCD for a 16x2, 16x4, 20x2, or 20x4 character-based LCD.
+ * Enable DOGLCD for a 128x64 (ST7565R) Full Graphical Display.
+ * (These options will be enabled automatically for most displays.)
+ *
+ * IMPORTANT: The U8glib library is required for Full Graphic Display!
+ *            https://github.com/olikraus/U8glib_Arduino
+ */
 #define ULTRA_LCD   // Character based
 //#define DOGLCD      // Full graphics display
 
-//
-// SD CARD
-//
-// SD Card support is disabled by default. If your controller has an SD slot,
-// you must uncomment the following option or it won't work.
-//
+/**
+ * SD CARD
+ *
+ * SD Card support is disabled by default. If your controller has an SD slot,
+ * you must uncomment the following option or it won't work.
+ *
+ */
 #define SDSUPPORT
 
-//
-// SD CARD: SPI SPEED
-//
-// Uncomment ONE of the following items to use a slower SPI transfer
-// speed. This is usually required if you're getting volume init errors.
-//
+/**
+ * SD CARD: SPI SPEED
+ *
+ * Enable one of the following items for a slower SPI transfer speed.
+ * This may be required to resolve "volume init" errors.
+ */
 //#define SPI_SPEED SPI_HALF_SPEED
 //#define SPI_SPEED SPI_QUARTER_SPEED
 //#define SPI_SPEED SPI_EIGHTH_SPEED
 
-//
-// SD CARD: ENABLE CRC
-//
-// Use CRC checks and retries on the SD communication.
-//
+/**
+ * SD CARD: ENABLE CRC
+ *
+ * Use CRC checks and retries on the SD communication.
+ */
 //#define SD_CHECK_AND_RETRY
 
 //
  */
 
 //
-// This option reverses the encoder direction everywhere
+// This option reverses the encoder direction everywhere.
 //
 //  Set this option if CLOCKWISE causes values to DECREASE
 //

Marlin/example_configurations/RepRapWorld/Megatronics/Configuration.h

 #define PREHEAT_2_TEMP_BED    110
 #define PREHEAT_2_FAN_SPEED     0 // Value from 0 to 255
 
-//
-// Nozzle Park -- EXPERIMENTAL
-//
-// When enabled allows the user to define a special XYZ position, inside the
-// machine's topology, to park the nozzle when idle or when receiving the G27
-// command.
-//
-// The "P" paramenter controls what is the action applied to the Z axis:
-//    P0: (Default) If current Z-pos is lower than Z-park then the nozzle will
-//        be raised to reach Z-park height.
-//
-//    P1: No matter the current Z-pos, the nozzle will be raised/lowered to
-//        reach Z-park height.
-//
-//    P2: The nozzle height will be raised by Z-park amount but never going over
-//        the machine's limit of Z_MAX_POS.
-//
+/**
+ * Nozzle Park -- EXPERIMENTAL
+ *
+ * Park the nozzle at the given XYZ position on idle or G27.
+ *
+ * The "P" parameter controls the action applied to the Z axis:
+ *
+ *    P0  (Default) If Z is below park Z raise the nozzle.
+ *    P1  Raise the nozzle always to Z-park height.
+ *    P2  Raise the nozzle by Z-park amount, limited to Z_MAX_POS.
+ */
 //#define NOZZLE_PARK_FEATURE
 
 #if ENABLED(NOZZLE_PARK_FEATURE)
   #define NOZZLE_PARK_POINT { (X_MIN_POS + 10), (Y_MAX_POS - 10), 20 }
 #endif
 
-//
-// Clean Nozzle Feature -- EXPERIMENTAL
-//
-// When enabled allows the user to send G12 to start the nozzle cleaning
-// process, the G-Code accepts two parameters:
-//   "P" for pattern selection
-//   "S" for defining the number of strokes/repetitions
-//
-// Available list of patterns:
-//   P0: This is the default pattern, this process requires a sponge type
-//       material at a fixed bed location. S defines "strokes" i.e.
-//       back-and-forth movements between the starting and end points.
-//
-//   P1: This starts a zig-zag pattern between (X0, Y0) and (X1, Y1), "T"
-//       defines the number of zig-zag triangles to be done. "S" defines the
-//       number of strokes aka one back-and-forth movement. Zig-zags will
-//       be performed in whichever dimension is smallest. As an example,
-//       sending "G12 P1 S1 T3" will execute:
-//
-//          --
-//         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
-//         |           |    /  \      /  \      /  \    |
-//       A |           |   /    \    /    \    /    \   |
-//         |           |  /      \  /      \  /      \  |
-//         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
-//          --         +--------------------------------+
-//                       |________|_________|_________|
-//                           T1        T2        T3
-//
-//   P2: This starts a circular pattern with circle with middle in
-//       NOZZLE_CLEAN_CIRCLE_MIDDLE radius of R and stroke count of S.
-//       Before starting the circle nozzle goes to NOZZLE_CLEAN_START_POINT.
-//
-// Caveats: End point Z should use the same value as Start point Z.
-//
-// Attention: This is an EXPERIMENTAL feature, in the future the G-code arguments
-// may change to add new functionality like different wipe patterns.
-//
+/**
+ * Clean Nozzle Feature -- EXPERIMENTAL
+ *
+ * Adds the G12 command to perform a nozzle cleaning process.
+ *
+ * Parameters:
+ *   P  Pattern
+ *   S  Strokes / Repetitions
+ *   T  Triangles (P1 only)
+ *
+ * Patterns:
+ *   P0  Straight line (default). This process requires a sponge type material
+ *       at a fixed bed location. "S" specifies strokes (i.e. back-forth motions)
+ *       between the start / end points.
+ *
+ *   P1  Zig-zag pattern between (X0, Y0) and (X1, Y1), "T" specifies the
+ *       number of zig-zag triangles to do. "S" defines the number of strokes.
+ *       Zig-zags are done in whichever is the narrower dimension.
+ *       For example, "G12 P1 S1 T3" will execute:
+ *
+ *          --
+ *         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
+ *         |           |    /  \      /  \      /  \    |
+ *       A |           |   /    \    /    \    /    \   |
+ *         |           |  /      \  /      \  /      \  |
+ *         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
+ *          --         +--------------------------------+
+ *                       |________|_________|_________|
+ *                           T1        T2        T3
+ *
+ *   P2  Circular pattern with middle at NOZZLE_CLEAN_CIRCLE_MIDDLE.
+ *       "R" specifies the radius. "S" specifies the stroke count.
+ *       Before starting, the nozzle moves to NOZZLE_CLEAN_START_POINT.
+ *
+ *   Caveats: The ending Z should be the same as starting Z.
+ * Attention: EXPERIMENTAL. G-code arguments may change.
+ *
+ */
 //#define NOZZLE_CLEAN_FEATURE
 
 #if ENABLED(NOZZLE_CLEAN_FEATURE)
   #define NOZZLE_CLEAN_GOBACK
 #endif
 
-//
-// Print job timer
-//
-// Enable this option to automatically start and stop the
-// print job timer when M104/M109/M190 commands are received.
-// M104 (extruder without wait) - high temp = none, low temp = stop timer
-// M109 (extruder with wait) - high temp = start timer, low temp = stop timer
-// M190 (bed with wait) - high temp = start timer, low temp = none
-//
-// In all cases the timer can be started and stopped using
-// the following commands:
-//
-// - M75  - Start the print job timer
-// - M76  - Pause the print job timer
-// - M77  - Stop the print job timer
+/**
+ * Print Job Timer
+ *
+ * Automatically start and stop the print job timer on M104/M109/M190.
+ *
+ *   M104 (hotend, no wait) - high temp = none,        low temp = stop timer
+ *   M109 (hotend, wait)    - high temp = start timer, low temp = stop timer
+ *   M190 (bed, wait)       - high temp = start timer, low temp = none
+ *
+ * The timer can also be controlled with the following commands:
+ *
+ *   M75 - Start the print job timer
+ *   M76 - Pause the print job timer
+ *   M77 - Stop the print job timer
+ */
 #define PRINTJOB_TIMER_AUTOSTART
 
-//
-// Print Counter
-//
-// When enabled Marlin will keep track of some print statistical data such as:
-//  - Total print jobs
-//  - Total successful print jobs
-//  - Total failed print jobs
-//  - Total time printing
-//
-// This information can be viewed by the M78 command.
+/**
+ * Print Counter
+ *
+ * Track statistical data such as:
+ *
+ *  - Total print jobs
+ *  - Total successful print jobs
+ *  - Total failed print jobs
+ *  - Total time printing
+ *
+ * View the current statistics with M78.
+ */
 //#define PRINTCOUNTER
 
 //=============================================================================
 
 // @section lcd
 
-//
-// LCD LANGUAGE
-//
-// Here you may choose the language used by Marlin on the LCD menus, the following
-// list of languages are available:
-//    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
-//    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
-//
-// :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
-//
+/**
+ * LCD LANGUAGE
+ *
+ * Select the language to display on the LCD. These languages are available:
+ *
+ *    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
+ *    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
+ *
+ * :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
+ */
 #define LCD_LANGUAGE en
 
-//
-// LCD Character Set
-//
-// Note: This option is NOT applicable to Graphical Displays.
-//
-// All character-based LCD's provide ASCII plus one of these
-// language extensions:
-//
-//  - JAPANESE ... the most common
-//  - WESTERN  ... with more accented characters
-//  - CYRILLIC ... for the Russian language
-//
-// To determine the language extension installed on your controller:
-//
-//  - Compile and upload with LCD_LANGUAGE set to 'test'
-//  - Click the controller to view the LCD menu
-//  - The LCD will display Japanese, Western, or Cyrillic text
-//
-// See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-// :['JAPANESE', 'WESTERN', 'CYRILLIC']
-//
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCDs provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https: *github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE', 'WESTERN', 'CYRILLIC']
+ */
 #define DISPLAY_CHARSET_HD44780 JAPANESE
 
-//
-// LCD TYPE
-//
-// You may choose ULTRA_LCD if you have character based LCD with 16x2, 16x4, 20x2,
-// 20x4 char/lines or DOGLCD for the full graphics display with 128x64 pixels
-// (ST7565R family). (This option will be set automatically for certain displays.)
-//
-// IMPORTANT NOTE: The U8glib library is required for Full Graphic Display!
-//                 https://github.com/olikraus/U8glib_Arduino
-//
+/**
+ * LCD TYPE
+ *
+ * Enable ULTRA_LCD for a 16x2, 16x4, 20x2, or 20x4 character-based LCD.
+ * Enable DOGLCD for a 128x64 (ST7565R) Full Graphical Display.
+ * (These options will be enabled automatically for most displays.)
+ *
+ * IMPORTANT: The U8glib library is required for Full Graphic Display!
+ *            https://github.com/olikraus/U8glib_Arduino
+ */
 #define ULTRA_LCD   // Character based
 //#define DOGLCD      // Full graphics display
 
-//
-// SD CARD
-//
-// SD Card support is disabled by default. If your controller has an SD slot,
-// you must uncomment the following option or it won't work.
-//
+/**
+ * SD CARD
+ *
+ * SD Card support is disabled by default. If your controller has an SD slot,
+ * you must uncomment the following option or it won't work.
+ *
+ */
 #define SDSUPPORT
 
-//
-// SD CARD: SPI SPEED
-//
-// Uncomment ONE of the following items to use a slower SPI transfer
-// speed. This is usually required if you're getting volume init errors.
-//
+/**
+ * SD CARD: SPI SPEED
+ *
+ * Enable one of the following items for a slower SPI transfer speed.
+ * This may be required to resolve "volume init" errors.
+ */
 //#define SPI_SPEED SPI_HALF_SPEED
 //#define SPI_SPEED SPI_QUARTER_SPEED
 //#define SPI_SPEED SPI_EIGHTH_SPEED
 
-//
-// SD CARD: ENABLE CRC
-//
-// Use CRC checks and retries on the SD communication.
-//
+/**
+ * SD CARD: ENABLE CRC
+ *
+ * Use CRC checks and retries on the SD communication.
+ */
 #define SD_CHECK_AND_RETRY
 
 //
  */
 
 //
-// This option reverses the encoder direction everywhere
+// This option reverses the encoder direction everywhere.
 //
 //  Set this option if CLOCKWISE causes values to DECREASE
 //

Marlin/example_configurations/RigidBot/Configuration.h

 #define PREHEAT_2_TEMP_BED    110
 #define PREHEAT_2_FAN_SPEED   255 // Value from 0 to 255
 
-//
-// Nozzle Park -- EXPERIMENTAL
-//
-// When enabled allows the user to define a special XYZ position, inside the
-// machine's topology, to park the nozzle when idle or when receiving the G27
-// command.
-//
-// The "P" paramenter controls what is the action applied to the Z axis:
-//    P0: (Default) If current Z-pos is lower than Z-park then the nozzle will
-//        be raised to reach Z-park height.
-//
-//    P1: No matter the current Z-pos, the nozzle will be raised/lowered to
-//        reach Z-park height.
-//
-//    P2: The nozzle height will be raised by Z-park amount but never going over
-//        the machine's limit of Z_MAX_POS.
-//
+/**
+ * Nozzle Park -- EXPERIMENTAL
+ *
+ * Park the nozzle at the given XYZ position on idle or G27.
+ *
+ * The "P" parameter controls the action applied to the Z axis:
+ *
+ *    P0  (Default) If Z is below park Z raise the nozzle.
+ *    P1  Raise the nozzle always to Z-park height.
+ *    P2  Raise the nozzle by Z-park amount, limited to Z_MAX_POS.
+ */
 //#define NOZZLE_PARK_FEATURE
 
 #if ENABLED(NOZZLE_PARK_FEATURE)
   #define NOZZLE_PARK_POINT { (X_MIN_POS + 10), (Y_MAX_POS - 10), 20 }
 #endif
 
-//
-// Clean Nozzle Feature -- EXPERIMENTAL
-//
-// When enabled allows the user to send G12 to start the nozzle cleaning
-// process, the G-Code accepts two parameters:
-//   "P" for pattern selection
-//   "S" for defining the number of strokes/repetitions
-//
-// Available list of patterns:
-//   P0: This is the default pattern, this process requires a sponge type
-//       material at a fixed bed location. S defines "strokes" i.e.
-//       back-and-forth movements between the starting and end points.
-//
-//   P1: This starts a zig-zag pattern between (X0, Y0) and (X1, Y1), "T"
-//       defines the number of zig-zag triangles to be done. "S" defines the
-//       number of strokes aka one back-and-forth movement. Zig-zags will
-//       be performed in whichever dimension is smallest. As an example,
-//       sending "G12 P1 S1 T3" will execute:
-//
-//          --
-//         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
-//         |           |    /  \      /  \      /  \    |
-//       A |           |   /    \    /    \    /    \   |
-//         |           |  /      \  /      \  /      \  |
-//         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
-//          --         +--------------------------------+
-//                       |________|_________|_________|
-//                           T1        T2        T3
-//
-//   P2: This starts a circular pattern with circle with middle in
-//       NOZZLE_CLEAN_CIRCLE_MIDDLE radius of R and stroke count of S.
-//       Before starting the circle nozzle goes to NOZZLE_CLEAN_START_POINT.
-//
-// Caveats: End point Z should use the same value as Start point Z.
-//
-// Attention: This is an EXPERIMENTAL feature, in the future the G-code arguments
-// may change to add new functionality like different wipe patterns.
-//
+/**
+ * Clean Nozzle Feature -- EXPERIMENTAL
+ *
+ * Adds the G12 command to perform a nozzle cleaning process.
+ *
+ * Parameters:
+ *   P  Pattern
+ *   S  Strokes / Repetitions
+ *   T  Triangles (P1 only)
+ *
+ * Patterns:
+ *   P0  Straight line (default). This process requires a sponge type material
+ *       at a fixed bed location. "S" specifies strokes (i.e. back-forth motions)
+ *       between the start / end points.
+ *
+ *   P1  Zig-zag pattern between (X0, Y0) and (X1, Y1), "T" specifies the
+ *       number of zig-zag triangles to do. "S" defines the number of strokes.
+ *       Zig-zags are done in whichever is the narrower dimension.
+ *       For example, "G12 P1 S1 T3" will execute:
+ *
+ *          --
+ *         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
+ *         |           |    /  \      /  \      /  \    |
+ *       A |           |   /    \    /    \    /    \   |
+ *         |           |  /      \  /      \  /      \  |
+ *         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
+ *          --         +--------------------------------+
+ *                       |________|_________|_________|
+ *                           T1        T2        T3
+ *
+ *   P2  Circular pattern with middle at NOZZLE_CLEAN_CIRCLE_MIDDLE.
+ *       "R" specifies the radius. "S" specifies the stroke count.
+ *       Before starting, the nozzle moves to NOZZLE_CLEAN_START_POINT.
+ *
+ *   Caveats: The ending Z should be the same as starting Z.
+ * Attention: EXPERIMENTAL. G-code arguments may change.
+ *
+ */
 //#define NOZZLE_CLEAN_FEATURE
 
 #if ENABLED(NOZZLE_CLEAN_FEATURE)
   #define NOZZLE_CLEAN_GOBACK
 #endif
 
-//
-// Print job timer
-//
-// Enable this option to automatically start and stop the
-// print job timer when M104/M109/M190 commands are received.
-// M104 (extruder without wait) - high temp = none, low temp = stop timer
-// M109 (extruder with wait) - high temp = start timer, low temp = stop timer
-// M190 (bed with wait) - high temp = start timer, low temp = none
-//
-// In all cases the timer can be started and stopped using
-// the following commands:
-//
-// - M75  - Start the print job timer
-// - M76  - Pause the print job timer
-// - M77  - Stop the print job timer
+/**
+ * Print Job Timer
+ *
+ * Automatically start and stop the print job timer on M104/M109/M190.
+ *
+ *   M104 (hotend, no wait) - high temp = none,        low temp = stop timer
+ *   M109 (hotend, wait)    - high temp = start timer, low temp = stop timer
+ *   M190 (bed, wait)       - high temp = start timer, low temp = none
+ *
+ * The timer can also be controlled with the following commands:
+ *
+ *   M75 - Start the print job timer
+ *   M76 - Pause the print job timer
+ *   M77 - Stop the print job timer
+ */
 #define PRINTJOB_TIMER_AUTOSTART
 
-//
-// Print Counter
-//
-// When enabled Marlin will keep track of some print statistical data such as:
-//  - Total print jobs
-//  - Total successful print jobs
-//  - Total failed print jobs
-//  - Total time printing
-//
-// This information can be viewed by the M78 command.
+/**
+ * Print Counter
+ *
+ * Track statistical data such as:
+ *
+ *  - Total print jobs
+ *  - Total successful print jobs
+ *  - Total failed print jobs
+ *  - Total time printing
+ *
+ * View the current statistics with M78.
+ */
 //#define PRINTCOUNTER
 
 //=============================================================================
 
 // @section lcd
 
-//
-// LCD LANGUAGE
-//
-// Here you may choose the language used by Marlin on the LCD menus, the following
-// list of languages are available:
-//    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
-//    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
-//
-// :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
-//
+/**
+ * LCD LANGUAGE
+ *
+ * Select the language to display on the LCD. These languages are available:
+ *
+ *    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
+ *    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
+ *
+ * :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
+ */
 #define LCD_LANGUAGE en
 
-//
-// LCD Character Set
-//
-// Note: This option is NOT applicable to Graphical Displays.
-//
-// All character-based LCD's provide ASCII plus one of these
-// language extensions:
-//
-//  - JAPANESE ... the most common
-//  - WESTERN  ... with more accented characters
-//  - CYRILLIC ... for the Russian language
-//
-// To determine the language extension installed on your controller:
-//
-//  - Compile and upload with LCD_LANGUAGE set to 'test'
-//  - Click the controller to view the LCD menu
-//  - The LCD will display Japanese, Western, or Cyrillic text
-//
-// See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-// :['JAPANESE', 'WESTERN', 'CYRILLIC']
-//
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCDs provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https: *github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE', 'WESTERN', 'CYRILLIC']
+ */
 #define DISPLAY_CHARSET_HD44780 JAPANESE
 
-//
-// LCD TYPE
-//
-// You may choose ULTRA_LCD if you have character based LCD with 16x2, 16x4, 20x2,
-// 20x4 char/lines or DOGLCD for the full graphics display with 128x64 pixels
-// (ST7565R family). (This option will be set automatically for certain displays.)
-//
-// IMPORTANT NOTE: The U8glib library is required for Full Graphic Display!
-//                 https://github.com/olikraus/U8glib_Arduino
-//
+/**
+ * LCD TYPE
+ *
+ * Enable ULTRA_LCD for a 16x2, 16x4, 20x2, or 20x4 character-based LCD.
+ * Enable DOGLCD for a 128x64 (ST7565R) Full Graphical Display.
+ * (These options will be enabled automatically for most displays.)
+ *
+ * IMPORTANT: The U8glib library is required for Full Graphic Display!
+ *            https://github.com/olikraus/U8glib_Arduino
+ */
 //#define ULTRA_LCD   // Character based
 //#define DOGLCD      // Full graphics display
 
-//
-// SD CARD
-//
-// SD Card support is disabled by default. If your controller has an SD slot,
-// you must uncomment the following option or it won't work.
-//
+/**
+ * SD CARD
+ *
+ * SD Card support is disabled by default. If your controller has an SD slot,
+ * you must uncomment the following option or it won't work.
+ *
+ */
 #define SDSUPPORT
 
-//
-// SD CARD: SPI SPEED
-//
-// Uncomment ONE of the following items to use a slower SPI transfer
-// speed. This is usually required if you're getting volume init errors.
-//
+/**
+ * SD CARD: SPI SPEED
+ *
+ * Enable one of the following items for a slower SPI transfer speed.
+ * This may be required to resolve "volume init" errors.
+ */
 //#define SPI_SPEED SPI_HALF_SPEED
 //#define SPI_SPEED SPI_QUARTER_SPEED
 #define SPI_SPEED SPI_EIGHTH_SPEED
 
-//
-// SD CARD: ENABLE CRC
-//
-// Use CRC checks and retries on the SD communication.
-//
+/**
+ * SD CARD: ENABLE CRC
+ *
+ * Use CRC checks and retries on the SD communication.
+ */
 //#define SD_CHECK_AND_RETRY
 
 //
  */
 
 //
-// This option reverses the encoder direction everywhere
+// This option reverses the encoder direction everywhere.
 //
 //  Set this option if CLOCKWISE causes values to DECREASE
 //

Marlin/example_configurations/SCARA/Configuration.h

 #define PREHEAT_2_TEMP_BED    100
 #define PREHEAT_2_FAN_SPEED   255 // Value from 0 to 255
 
-//
-// Nozzle Park -- EXPERIMENTAL
-//
-// When enabled allows the user to define a special XYZ position, inside the
-// machine's topology, to park the nozzle when idle or when receiving the G27
-// command.
-//
-// The "P" paramenter controls what is the action applied to the Z axis:
-//    P0: (Default) If current Z-pos is lower than Z-park then the nozzle will
-//        be raised to reach Z-park height.
-//
-//    P1: No matter the current Z-pos, the nozzle will be raised/lowered to
-//        reach Z-park height.
-//
-//    P2: The nozzle height will be raised by Z-park amount but never going over
-//        the machine's limit of Z_MAX_POS.
-//
+/**
+ * Nozzle Park -- EXPERIMENTAL
+ *
+ * Park the nozzle at the given XYZ position on idle or G27.
+ *
+ * The "P" parameter controls the action applied to the Z axis:
+ *
+ *    P0  (Default) If Z is below park Z raise the nozzle.
+ *    P1  Raise the nozzle always to Z-park height.
+ *    P2  Raise the nozzle by Z-park amount, limited to Z_MAX_POS.
+ */
 //#define NOZZLE_PARK_FEATURE
 
 #if ENABLED(NOZZLE_PARK_FEATURE)
   #define NOZZLE_PARK_POINT { (X_MIN_POS + 10), (Y_MAX_POS - 10), 20 }
 #endif
 
-//
-// Clean Nozzle Feature -- EXPERIMENTAL
-//
-// When enabled allows the user to send G12 to start the nozzle cleaning
-// process, the G-Code accepts two parameters:
-//   "P" for pattern selection
-//   "S" for defining the number of strokes/repetitions
-//
-// Available list of patterns:
-//   P0: This is the default pattern, this process requires a sponge type
-//       material at a fixed bed location. S defines "strokes" i.e.
-//       back-and-forth movements between the starting and end points.
-//
-//   P1: This starts a zig-zag pattern between (X0, Y0) and (X1, Y1), "T"
-//       defines the number of zig-zag triangles to be done. "S" defines the
-//       number of strokes aka one back-and-forth movement. Zig-zags will
-//       be performed in whichever dimension is smallest. As an example,
-//       sending "G12 P1 S1 T3" will execute:
-//
-//          --
-//         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
-//         |           |    /  \      /  \      /  \    |
-//       A |           |   /    \    /    \    /    \   |
-//         |           |  /      \  /      \  /      \  |
-//         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
-//          --         +--------------------------------+
-//                       |________|_________|_________|
-//                           T1        T2        T3
-//
-//   P2: This starts a circular pattern with circle with middle in
-//       NOZZLE_CLEAN_CIRCLE_MIDDLE radius of R and stroke count of S.
-//       Before starting the circle nozzle goes to NOZZLE_CLEAN_START_POINT.
-//
-// Caveats: End point Z should use the same value as Start point Z.
-//
-// Attention: This is an EXPERIMENTAL feature, in the future the G-code arguments
-// may change to add new functionality like different wipe patterns.
-//
+/**
+ * Clean Nozzle Feature -- EXPERIMENTAL
+ *
+ * Adds the G12 command to perform a nozzle cleaning process.
+ *
+ * Parameters:
+ *   P  Pattern
+ *   S  Strokes / Repetitions
+ *   T  Triangles (P1 only)
+ *
+ * Patterns:
+ *   P0  Straight line (default). This process requires a sponge type material
+ *       at a fixed bed location. "S" specifies strokes (i.e. back-forth motions)
+ *       between the start / end points.
+ *
+ *   P1  Zig-zag pattern between (X0, Y0) and (X1, Y1), "T" specifies the
+ *       number of zig-zag triangles to do. "S" defines the number of strokes.
+ *       Zig-zags are done in whichever is the narrower dimension.
+ *       For example, "G12 P1 S1 T3" will execute:
+ *
+ *          --
+ *         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
+ *         |           |    /  \      /  \      /  \    |
+ *       A |           |   /    \    /    \    /    \   |
+ *         |           |  /      \  /      \  /      \  |
+ *         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
+ *          --         +--------------------------------+
+ *                       |________|_________|_________|
+ *                           T1        T2        T3
+ *
+ *   P2  Circular pattern with middle at NOZZLE_CLEAN_CIRCLE_MIDDLE.
+ *       "R" specifies the radius. "S" specifies the stroke count.
+ *       Before starting, the nozzle moves to NOZZLE_CLEAN_START_POINT.
+ *
+ *   Caveats: The ending Z should be the same as starting Z.
+ * Attention: EXPERIMENTAL. G-code arguments may change.
+ *
+ */
 //#define NOZZLE_CLEAN_FEATURE
 
 #if ENABLED(NOZZLE_CLEAN_FEATURE)
   #define NOZZLE_CLEAN_GOBACK
 #endif
 
-//
-// Print job timer
-//
-// Enable this option to automatically start and stop the
-// print job timer when M104/M109/M190 commands are received.
-// M104 (extruder without wait) - high temp = none, low temp = stop timer
-// M109 (extruder with wait) - high temp = start timer, low temp = stop timer
-// M190 (bed with wait) - high temp = start timer, low temp = none
-//
-// In all cases the timer can be started and stopped using
-// the following commands:
-//
-// - M75  - Start the print job timer
-// - M76  - Pause the print job timer
-// - M77  - Stop the print job timer
+/**
+ * Print Job Timer
+ *
+ * Automatically start and stop the print job timer on M104/M109/M190.
+ *
+ *   M104 (hotend, no wait) - high temp = none,        low temp = stop timer
+ *   M109 (hotend, wait)    - high temp = start timer, low temp = stop timer
+ *   M190 (bed, wait)       - high temp = start timer, low temp = none
+ *
+ * The timer can also be controlled with the following commands:
+ *
+ *   M75 - Start the print job timer
+ *   M76 - Pause the print job timer
+ *   M77 - Stop the print job timer
+ */
 #define PRINTJOB_TIMER_AUTOSTART
 
-//
-// Print Counter
-//
-// When enabled Marlin will keep track of some print statistical data such as:
-//  - Total print jobs
-//  - Total successful print jobs
-//  - Total failed print jobs
-//  - Total time printing
-//
-// This information can be viewed by the M78 command.
+/**
+ * Print Counter
+ *
+ * Track statistical data such as:
+ *
+ *  - Total print jobs
+ *  - Total successful print jobs
+ *  - Total failed print jobs
+ *  - Total time printing
+ *
+ * View the current statistics with M78.
+ */
 //#define PRINTCOUNTER
 
 //=============================================================================
 
 // @section lcd
 
-//
-// LCD LANGUAGE
-//
-// Here you may choose the language used by Marlin on the LCD menus, the following
-// list of languages are available:
-//    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
-//    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
-//
-// :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
-//
+/**
+ * LCD LANGUAGE
+ *
+ * Select the language to display on the LCD. These languages are available:
+ *
+ *    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
+ *    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
+ *
+ * :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
+ */
 //#define LCD_LANGUAGE en
 
-//
-// LCD Character Set
-//
-// Note: This option is NOT applicable to Graphical Displays.
-//
-// All character-based LCD's provide ASCII plus one of these
-// language extensions:
-//
-//  - JAPANESE ... the most common
-//  - WESTERN  ... with more accented characters
-//  - CYRILLIC ... for the Russian language
-//
-// To determine the language extension installed on your controller:
-//
-//  - Compile and upload with LCD_LANGUAGE set to 'test'
-//  - Click the controller to view the LCD menu
-//  - The LCD will display Japanese, Western, or Cyrillic text
-//
-// See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-// :['JAPANESE', 'WESTERN', 'CYRILLIC']
-//
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCDs provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https: *github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE', 'WESTERN', 'CYRILLIC']
+ */
 #define DISPLAY_CHARSET_HD44780 JAPANESE
 
-//
-// LCD TYPE
-//
-// You may choose ULTRA_LCD if you have character based LCD with 16x2, 16x4, 20x2,
-// 20x4 char/lines or DOGLCD for the full graphics display with 128x64 pixels
-// (ST7565R family). (This option will be set automatically for certain displays.)
-//
-// IMPORTANT NOTE: The U8glib library is required for Full Graphic Display!
-//                 https://github.com/olikraus/U8glib_Arduino
-//
+/**
+ * LCD TYPE
+ *
+ * Enable ULTRA_LCD for a 16x2, 16x4, 20x2, or 20x4 character-based LCD.
+ * Enable DOGLCD for a 128x64 (ST7565R) Full Graphical Display.
+ * (These options will be enabled automatically for most displays.)
+ *
+ * IMPORTANT: The U8glib library is required for Full Graphic Display!
+ *            https://github.com/olikraus/U8glib_Arduino
+ */
 //#define ULTRA_LCD   // Character based
 //#define DOGLCD      // Full graphics display
 
-//
-// SD CARD
-//
-// SD Card support is disabled by default. If your controller has an SD slot,
-// you must uncomment the following option or it won't work.
-//
+/**
+ * SD CARD
+ *
+ * SD Card support is disabled by default. If your controller has an SD slot,
+ * you must uncomment the following option or it won't work.
+ *
+ */
 //#define SDSUPPORT
 
-//
-// SD CARD: SPI SPEED
-//
-// Uncomment ONE of the following items to use a slower SPI transfer
-// speed. This is usually required if you're getting volume init errors.
-//
+/**
+ * SD CARD: SPI SPEED
+ *
+ * Enable one of the following items for a slower SPI transfer speed.
+ * This may be required to resolve "volume init" errors.
+ */
 //#define SPI_SPEED SPI_HALF_SPEED
 //#define SPI_SPEED SPI_QUARTER_SPEED
 //#define SPI_SPEED SPI_EIGHTH_SPEED
 
-//
-// SD CARD: ENABLE CRC
-//
-// Use CRC checks and retries on the SD communication.
-//
+/**
+ * SD CARD: ENABLE CRC
+ *
+ * Use CRC checks and retries on the SD communication.
+ */
 //#define SD_CHECK_AND_RETRY
 
 //
  */
 
 //
-// This option reverses the encoder direction everywhere
+// This option reverses the encoder direction everywhere.
 //
 //  Set this option if CLOCKWISE causes values to DECREASE
 //

Marlin/example_configurations/TAZ4/Configuration.h

 #define PREHEAT_2_TEMP_BED    110
 #define PREHEAT_2_FAN_SPEED     0 // Value from 0 to 255
 
-//
-// Nozzle Park -- EXPERIMENTAL
-//
-// When enabled allows the user to define a special XYZ position, inside the
-// machine's topology, to park the nozzle when idle or when receiving the G27
-// command.
-//
-// The "P" paramenter controls what is the action applied to the Z axis:
-//    P0: (Default) If current Z-pos is lower than Z-park then the nozzle will
-//        be raised to reach Z-park height.
-//
-//    P1: No matter the current Z-pos, the nozzle will be raised/lowered to
-//        reach Z-park height.
-//
-//    P2: The nozzle height will be raised by Z-park amount but never going over
-//        the machine's limit of Z_MAX_POS.
-//
+/**
+ * Nozzle Park -- EXPERIMENTAL
+ *
+ * Park the nozzle at the given XYZ position on idle or G27.
+ *
+ * The "P" parameter controls the action applied to the Z axis:
+ *
+ *    P0  (Default) If Z is below park Z raise the nozzle.
+ *    P1  Raise the nozzle always to Z-park height.
+ *    P2  Raise the nozzle by Z-park amount, limited to Z_MAX_POS.
+ */
 //#define NOZZLE_PARK_FEATURE
 
 #if ENABLED(NOZZLE_PARK_FEATURE)
   #define NOZZLE_PARK_POINT { (X_MIN_POS + 10), (Y_MAX_POS - 10), 20 }
 #endif
 
-//
-// Clean Nozzle Feature -- EXPERIMENTAL
-//
-// When enabled allows the user to send G12 to start the nozzle cleaning
-// process, the G-Code accepts two parameters:
-//   "P" for pattern selection
-//   "S" for defining the number of strokes/repetitions
-//
-// Available list of patterns:
-//   P0: This is the default pattern, this process requires a sponge type
-//       material at a fixed bed location. S defines "strokes" i.e.
-//       back-and-forth movements between the starting and end points.
-//
-//   P1: This starts a zig-zag pattern between (X0, Y0) and (X1, Y1), "T"
-//       defines the number of zig-zag triangles to be done. "S" defines the
-//       number of strokes aka one back-and-forth movement. Zig-zags will
-//       be performed in whichever dimension is smallest. As an example,
-//       sending "G12 P1 S1 T3" will execute:
-//
-//          --
-//         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
-//         |           |    /  \      /  \      /  \    |
-//       A |           |   /    \    /    \    /    \   |
-//         |           |  /      \  /      \  /      \  |
-//         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
-//          --         +--------------------------------+
-//                       |________|_________|_________|
-//                           T1        T2        T3
-//
-//   P2: This starts a circular pattern with circle with middle in
-//       NOZZLE_CLEAN_CIRCLE_MIDDLE radius of R and stroke count of S.
-//       Before starting the circle nozzle goes to NOZZLE_CLEAN_START_POINT.
-//
-// Caveats: End point Z should use the same value as Start point Z.
-//
-// Attention: This is an EXPERIMENTAL feature, in the future the G-code arguments
-// may change to add new functionality like different wipe patterns.
-//
+/**
+ * Clean Nozzle Feature -- EXPERIMENTAL
+ *
+ * Adds the G12 command to perform a nozzle cleaning process.
+ *
+ * Parameters:
+ *   P  Pattern
+ *   S  Strokes / Repetitions
+ *   T  Triangles (P1 only)
+ *
+ * Patterns:
+ *   P0  Straight line (default). This process requires a sponge type material
+ *       at a fixed bed location. "S" specifies strokes (i.e. back-forth motions)
+ *       between the start / end points.
+ *
+ *   P1  Zig-zag pattern between (X0, Y0) and (X1, Y1), "T" specifies the
+ *       number of zig-zag triangles to do. "S" defines the number of strokes.
+ *       Zig-zags are done in whichever is the narrower dimension.
+ *       For example, "G12 P1 S1 T3" will execute:
+ *
+ *          --
+ *         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
+ *         |           |    /  \      /  \      /  \    |
+ *       A |           |   /    \    /    \    /    \   |
+ *         |           |  /      \  /      \  /      \  |
+ *         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
+ *          --         +--------------------------------+
+ *                       |________|_________|_________|
+ *                           T1        T2        T3
+ *
+ *   P2  Circular pattern with middle at NOZZLE_CLEAN_CIRCLE_MIDDLE.
+ *       "R" specifies the radius. "S" specifies the stroke count.
+ *       Before starting, the nozzle moves to NOZZLE_CLEAN_START_POINT.
+ *
+ *   Caveats: The ending Z should be the same as starting Z.
+ * Attention: EXPERIMENTAL. G-code arguments may change.
+ *
+ */
 //#define NOZZLE_CLEAN_FEATURE
 
 #if ENABLED(NOZZLE_CLEAN_FEATURE)
   #define NOZZLE_CLEAN_GOBACK
 #endif
 
-//
-// Print job timer
-//
-// Enable this option to automatically start and stop the
-// print job timer when M104/M109/M190 commands are received.
-// M104 (extruder without wait) - high temp = none, low temp = stop timer
-// M109 (extruder with wait) - high temp = start timer, low temp = stop timer
-// M190 (bed with wait) - high temp = start timer, low temp = none
-//
-// In all cases the timer can be started and stopped using
-// the following commands:
-//
-// - M75  - Start the print job timer
-// - M76  - Pause the print job timer
-// - M77  - Stop the print job timer
+/**
+ * Print Job Timer
+ *
+ * Automatically start and stop the print job timer on M104/M109/M190.
+ *
+ *   M104 (hotend, no wait) - high temp = none,        low temp = stop timer
+ *   M109 (hotend, wait)    - high temp = start timer, low temp = stop timer
+ *   M190 (bed, wait)       - high temp = start timer, low temp = none
+ *
+ * The timer can also be controlled with the following commands:
+ *
+ *   M75 - Start the print job timer
+ *   M76 - Pause the print job timer
+ *   M77 - Stop the print job timer
+ */
 #define PRINTJOB_TIMER_AUTOSTART
 
-//
-// Print Counter
-//
-// When enabled Marlin will keep track of some print statistical data such as:
-//  - Total print jobs
-//  - Total successful print jobs
-//  - Total failed print jobs
-//  - Total time printing
-//
-// This information can be viewed by the M78 command.
+/**
+ * Print Counter
+ *
+ * Track statistical data such as:
+ *
+ *  - Total print jobs
+ *  - Total successful print jobs
+ *  - Total failed print jobs
+ *  - Total time printing
+ *
+ * View the current statistics with M78.
+ */
 //#define PRINTCOUNTER
 
 //=============================================================================
 
 // @section lcd
 
-//
-// LCD LANGUAGE
-//
-// Here you may choose the language used by Marlin on the LCD menus, the following
-// list of languages are available:
-//    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
-//    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
-//
-// :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
-//
+/**
+ * LCD LANGUAGE
+ *
+ * Select the language to display on the LCD. These languages are available:
+ *
+ *    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
+ *    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
+ *
+ * :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
+ */
 #define LCD_LANGUAGE en
 
-//
-// LCD Character Set
-//
-// Note: This option is NOT applicable to Graphical Displays.
-//
-// All character-based LCD's provide ASCII plus one of these
-// language extensions:
-//
-//  - JAPANESE ... the most common
-//  - WESTERN  ... with more accented characters
-//  - CYRILLIC ... for the Russian language
-//
-// To determine the language extension installed on your controller:
-//
-//  - Compile and upload with LCD_LANGUAGE set to 'test'
-//  - Click the controller to view the LCD menu
-//  - The LCD will display Japanese, Western, or Cyrillic text
-//
-// See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-// :['JAPANESE', 'WESTERN', 'CYRILLIC']
-//
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCDs provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https: *github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE', 'WESTERN', 'CYRILLIC']
+ */
 #define DISPLAY_CHARSET_HD44780 JAPANESE
 
-//
-// LCD TYPE
-//
-// You may choose ULTRA_LCD if you have character based LCD with 16x2, 16x4, 20x2,
-// 20x4 char/lines or DOGLCD for the full graphics display with 128x64 pixels
-// (ST7565R family). (This option will be set automatically for certain displays.)
-//
-// IMPORTANT NOTE: The U8glib library is required for Full Graphic Display!
-//                 https://github.com/olikraus/U8glib_Arduino
-//
+/**
+ * LCD TYPE
+ *
+ * Enable ULTRA_LCD for a 16x2, 16x4, 20x2, or 20x4 character-based LCD.
+ * Enable DOGLCD for a 128x64 (ST7565R) Full Graphical Display.
+ * (These options will be enabled automatically for most displays.)
+ *
+ * IMPORTANT: The U8glib library is required for Full Graphic Display!
+ *            https://github.com/olikraus/U8glib_Arduino
+ */
 //#define ULTRA_LCD   // Character based
 //#define DOGLCD      // Full graphics display
 
-//
-// SD CARD
-//
-// SD Card support is disabled by default. If your controller has an SD slot,
-// you must uncomment the following option or it won't work.
-//
+/**
+ * SD CARD
+ *
+ * SD Card support is disabled by default. If your controller has an SD slot,
+ * you must uncomment the following option or it won't work.
+ *
+ */
 //#define SDSUPPORT
 
-//
-// SD CARD: SPI SPEED
-//
-// Uncomment ONE of the following items to use a slower SPI transfer
-// speed. This is usually required if you're getting volume init errors.
-//
+/**
+ * SD CARD: SPI SPEED
+ *
+ * Enable one of the following items for a slower SPI transfer speed.
+ * This may be required to resolve "volume init" errors.
+ */
 //#define SPI_SPEED SPI_HALF_SPEED
 //#define SPI_SPEED SPI_QUARTER_SPEED
 //#define SPI_SPEED SPI_EIGHTH_SPEED
 
-//
-// SD CARD: ENABLE CRC
-//
-// Use CRC checks and retries on the SD communication.
-//
+/**
+ * SD CARD: ENABLE CRC
+ *
+ * Use CRC checks and retries on the SD communication.
+ */
 //#define SD_CHECK_AND_RETRY
 
 //
  */
 
 //
-// This option reverses the encoder direction everywhere
+// This option reverses the encoder direction everywhere.
 //
 //  Set this option if CLOCKWISE causes values to DECREASE
 //

Marlin/example_configurations/TinyBoy2/Configuration.h

 #define PREHEAT_2_TEMP_BED     90 // TB2: ABS default 110, 90 is the maximum temp at 12V supply
 #define PREHEAT_2_FAN_SPEED     0 // Value from 0 to 255
 
-//
-// Nozzle Park -- EXPERIMENTAL
-//
-// When enabled allows the user to define a special XYZ position, inside the
-// machine's topology, to park the nozzle when idle or when receiving the G27
-// command.
-//
-// The "P" paramenter controls what is the action applied to the Z axis:
-//    P0: (Default) If current Z-pos is lower than Z-park then the nozzle will
-//        be raised to reach Z-park height.
-//
-//    P1: No matter the current Z-pos, the nozzle will be raised/lowered to
-//        reach Z-park height.
-//
-//    P2: The nozzle height will be raised by Z-park amount but never going over
-//        the machine's limit of Z_MAX_POS.
-//
+/**
+ * Nozzle Park -- EXPERIMENTAL
+ *
+ * Park the nozzle at the given XYZ position on idle or G27.
+ *
+ * The "P" parameter controls the action applied to the Z axis:
+ *
+ *    P0  (Default) If Z is below park Z raise the nozzle.
+ *    P1  Raise the nozzle always to Z-park height.
+ *    P2  Raise the nozzle by Z-park amount, limited to Z_MAX_POS.
+ */
 #define NOZZLE_PARK_FEATURE
 
 #if ENABLED(NOZZLE_PARK_FEATURE)
   #define NOZZLE_PARK_POINT { (X_MIN_POS + 10), (Y_MAX_POS - 10), 20 }
 #endif
 
-//
-// Clean Nozzle Feature -- EXPERIMENTAL
-//
-// When enabled allows the user to send G12 to start the nozzle cleaning
-// process, the G-Code accepts two parameters:
-//   "P" for pattern selection
-//   "S" for defining the number of strokes/repetitions
-//
-// Available list of patterns:
-//   P0: This is the default pattern, this process requires a sponge type
-//       material at a fixed bed location. S defines "strokes" i.e.
-//       back-and-forth movements between the starting and end points.
-//
-//   P1: This starts a zig-zag pattern between (X0, Y0) and (X1, Y1), "T"
-//       defines the number of zig-zag triangles to be done. "S" defines the
-//       number of strokes aka one back-and-forth movement. Zig-zags will
-//       be performed in whichever dimension is smallest. As an example,
-//       sending "G12 P1 S1 T3" will execute:
-//
-//          --
-//         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
-//         |           |    /  \      /  \      /  \    |
-//       A |           |   /    \    /    \    /    \   |
-//         |           |  /      \  /      \  /      \  |
-//         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
-//          --         +--------------------------------+
-//                       |________|_________|_________|
-//                           T1        T2        T3
-//
-//   P2: This starts a circular pattern with circle with middle in
-//       NOZZLE_CLEAN_CIRCLE_MIDDLE radius of R and stroke count of S.
-//       Before starting the circle nozzle goes to NOZZLE_CLEAN_START_POINT.
-//
-// Caveats: End point Z should use the same value as Start point Z.
-//
-// Attention: This is an EXPERIMENTAL feature, in the future the G-code arguments
-// may change to add new functionality like different wipe patterns.
-//
+/**
+ * Clean Nozzle Feature -- EXPERIMENTAL
+ *
+ * Adds the G12 command to perform a nozzle cleaning process.
+ *
+ * Parameters:
+ *   P  Pattern
+ *   S  Strokes / Repetitions
+ *   T  Triangles (P1 only)
+ *
+ * Patterns:
+ *   P0  Straight line (default). This process requires a sponge type material
+ *       at a fixed bed location. "S" specifies strokes (i.e. back-forth motions)
+ *       between the start / end points.
+ *
+ *   P1  Zig-zag pattern between (X0, Y0) and (X1, Y1), "T" specifies the
+ *       number of zig-zag triangles to do. "S" defines the number of strokes.
+ *       Zig-zags are done in whichever is the narrower dimension.
+ *       For example, "G12 P1 S1 T3" will execute:
+ *
+ *          --
+ *         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
+ *         |           |    /  \      /  \      /  \    |
+ *       A |           |   /    \    /    \    /    \   |
+ *         |           |  /      \  /      \  /      \  |
+ *         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
+ *          --         +--------------------------------+
+ *                       |________|_________|_________|
+ *                           T1        T2        T3
+ *
+ *   P2  Circular pattern with middle at NOZZLE_CLEAN_CIRCLE_MIDDLE.
+ *       "R" specifies the radius. "S" specifies the stroke count.
+ *       Before starting, the nozzle moves to NOZZLE_CLEAN_START_POINT.
+ *
+ *   Caveats: The ending Z should be the same as starting Z.
+ * Attention: EXPERIMENTAL. G-code arguments may change.
+ *
+ */
 //#define NOZZLE_CLEAN_FEATURE
 
 #if ENABLED(NOZZLE_CLEAN_FEATURE)
   #define NOZZLE_CLEAN_GOBACK
 #endif
 
-//
-// Print job timer
-//
-// Enable this option to automatically start and stop the
-// print job timer when M104/M109/M190 commands are received.
-// M104 (extruder without wait) - high temp = none, low temp = stop timer
-// M109 (extruder with wait) - high temp = start timer, low temp = stop timer
-// M190 (bed with wait) - high temp = start timer, low temp = none
-//
-// In all cases the timer can be started and stopped using
-// the following commands:
-//
-// - M75  - Start the print job timer
-// - M76  - Pause the print job timer
-// - M77  - Stop the print job timer
+/**
+ * Print Job Timer
+ *
+ * Automatically start and stop the print job timer on M104/M109/M190.
+ *
+ *   M104 (hotend, no wait) - high temp = none,        low temp = stop timer
+ *   M109 (hotend, wait)    - high temp = start timer, low temp = stop timer
+ *   M190 (bed, wait)       - high temp = start timer, low temp = none
+ *
+ * The timer can also be controlled with the following commands:
+ *
+ *   M75 - Start the print job timer
+ *   M76 - Pause the print job timer
+ *   M77 - Stop the print job timer
+ */
 #define PRINTJOB_TIMER_AUTOSTART
 
-//
-// Print Counter
-//
-// When enabled Marlin will keep track of some print statistical data such as:
-//  - Total print jobs
-//  - Total successful print jobs
-//  - Total failed print jobs
-//  - Total time printing
-//
-// This information can be viewed by the M78 command.
+/**
+ * Print Counter
+ *
+ * Track statistical data such as:
+ *
+ *  - Total print jobs
+ *  - Total successful print jobs
+ *  - Total failed print jobs
+ *  - Total time printing
+ *
+ * View the current statistics with M78.
+ */
 #define PRINTCOUNTER
 
 //=============================================================================
 
 // @section lcd
 
-//
-// LCD LANGUAGE
-//
-// Here you may choose the language used by Marlin on the LCD menus, the following
-// list of languages are available:
-//    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
-//    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
-//
-// :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
-//
+/**
+ * LCD LANGUAGE
+ *
+ * Select the language to display on the LCD. These languages are available:
+ *
+ *    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
+ *    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
+ *
+ * :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
+ */
 #define LCD_LANGUAGE en
 
-//
-// LCD Character Set
-//
-// Note: This option is NOT applicable to Graphical Displays.
-//
-// All character-based LCD's provide ASCII plus one of these
-// language extensions:
-//
-//  - JAPANESE ... the most common
-//  - WESTERN  ... with more accented characters
-//  - CYRILLIC ... for the Russian language
-//
-// To determine the language extension installed on your controller:
-//
-//  - Compile and upload with LCD_LANGUAGE set to 'test'
-//  - Click the controller to view the LCD menu
-//  - The LCD will display Japanese, Western, or Cyrillic text
-//
-// See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-// :['JAPANESE', 'WESTERN', 'CYRILLIC']
-//
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCDs provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https: *github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE', 'WESTERN', 'CYRILLIC']
+ */
 #define DISPLAY_CHARSET_HD44780 JAPANESE
 
-//
-// LCD TYPE
-//
-// You may choose ULTRA_LCD if you have character based LCD with 16x2, 16x4, 20x2,
-// 20x4 char/lines or DOGLCD for the full graphics display with 128x64 pixels
-// (ST7565R family). (This option will be set automatically for certain displays.)
-//
-// IMPORTANT NOTE: The U8glib library is required for Full Graphic Display!
-//                 https://github.com/olikraus/U8glib_Arduino
-//
+/**
+ * LCD TYPE
+ *
+ * Enable ULTRA_LCD for a 16x2, 16x4, 20x2, or 20x4 character-based LCD.
+ * Enable DOGLCD for a 128x64 (ST7565R) Full Graphical Display.
+ * (These options will be enabled automatically for most displays.)
+ *
+ * IMPORTANT: The U8glib library is required for Full Graphic Display!
+ *            https://github.com/olikraus/U8glib_Arduino
+ */
 //#define ULTRA_LCD   // Character based
 //#define DOGLCD      // Full graphics display
 
-//
-// SD CARD
-//
-// SD Card support is disabled by default. If your controller has an SD slot,
-// you must uncomment the following option or it won't work.
-//
+/**
+ * SD CARD
+ *
+ * SD Card support is disabled by default. If your controller has an SD slot,
+ * you must uncomment the following option or it won't work.
+ *
+ */
 #define SDSUPPORT
 
-//
-// SD CARD: SPI SPEED
-//
-// Uncomment ONE of the following items to use a slower SPI transfer
-// speed. This is usually required if you're getting volume init errors.
-//
+/**
+ * SD CARD: SPI SPEED
+ *
+ * Enable one of the following items for a slower SPI transfer speed.
+ * This may be required to resolve "volume init" errors.
+ */
 //#define SPI_SPEED SPI_HALF_SPEED
 //#define SPI_SPEED SPI_QUARTER_SPEED
 //#define SPI_SPEED SPI_EIGHTH_SPEED
 
-//
-// SD CARD: ENABLE CRC
-//
-// Use CRC checks and retries on the SD communication.
-//
+/**
+ * SD CARD: ENABLE CRC
+ *
+ * Use CRC checks and retries on the SD communication.
+ */
 #define SD_CHECK_AND_RETRY
 
 //
  */
 
 //
-// This option reverses the encoder direction everywhere
+// This option reverses the encoder direction everywhere.
 //
 //  Set this option if CLOCKWISE causes values to DECREASE
 //

Marlin/example_configurations/WITBOX/Configuration.h

 #define PREHEAT_2_TEMP_BED    100
 #define PREHEAT_2_FAN_SPEED   255 // Value from 0 to 255
 
-//
-// Nozzle Park -- EXPERIMENTAL
-//
-// When enabled allows the user to define a special XYZ position, inside the
-// machine's topology, to park the nozzle when idle or when receiving the G27
-// command.
-//
-// The "P" paramenter controls what is the action applied to the Z axis:
-//    P0: (Default) If current Z-pos is lower than Z-park then the nozzle will
-//        be raised to reach Z-park height.
-//
-//    P1: No matter the current Z-pos, the nozzle will be raised/lowered to
-//        reach Z-park height.
-//
-//    P2: The nozzle height will be raised by Z-park amount but never going over
-//        the machine's limit of Z_MAX_POS.
-//
+/**
+ * Nozzle Park -- EXPERIMENTAL
+ *
+ * Park the nozzle at the given XYZ position on idle or G27.
+ *
+ * The "P" parameter controls the action applied to the Z axis:
+ *
+ *    P0  (Default) If Z is below park Z raise the nozzle.
+ *    P1  Raise the nozzle always to Z-park height.
+ *    P2  Raise the nozzle by Z-park amount, limited to Z_MAX_POS.
+ */
 //#define NOZZLE_PARK_FEATURE
 
 #if ENABLED(NOZZLE_PARK_FEATURE)
   #define NOZZLE_PARK_POINT { (X_MIN_POS + 10), (Y_MAX_POS - 10), 20 }
 #endif
 
-//
-// Clean Nozzle Feature -- EXPERIMENTAL
-//
-// When enabled allows the user to send G12 to start the nozzle cleaning
-// process, the G-Code accepts two parameters:
-//   "P" for pattern selection
-//   "S" for defining the number of strokes/repetitions
-//
-// Available list of patterns:
-//   P0: This is the default pattern, this process requires a sponge type
-//       material at a fixed bed location. S defines "strokes" i.e.
-//       back-and-forth movements between the starting and end points.
-//
-//   P1: This starts a zig-zag pattern between (X0, Y0) and (X1, Y1), "T"
-//       defines the number of zig-zag triangles to be done. "S" defines the
-//       number of strokes aka one back-and-forth movement. Zig-zags will
-//       be performed in whichever dimension is smallest. As an example,
-//       sending "G12 P1 S1 T3" will execute:
-//
-//          --
-//         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
-//         |           |    /  \      /  \      /  \    |
-//       A |           |   /    \    /    \    /    \   |
-//         |           |  /      \  /      \  /      \  |
-//         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
-//          --         +--------------------------------+
-//                       |________|_________|_________|
-//                           T1        T2        T3
-//
-//   P2: This starts a circular pattern with circle with middle in
-//       NOZZLE_CLEAN_CIRCLE_MIDDLE radius of R and stroke count of S.
-//       Before starting the circle nozzle goes to NOZZLE_CLEAN_START_POINT.
-//
-// Caveats: End point Z should use the same value as Start point Z.
-//
-// Attention: This is an EXPERIMENTAL feature, in the future the G-code arguments
-// may change to add new functionality like different wipe patterns.
-//
+/**
+ * Clean Nozzle Feature -- EXPERIMENTAL
+ *
+ * Adds the G12 command to perform a nozzle cleaning process.
+ *
+ * Parameters:
+ *   P  Pattern
+ *   S  Strokes / Repetitions
+ *   T  Triangles (P1 only)
+ *
+ * Patterns:
+ *   P0  Straight line (default). This process requires a sponge type material
+ *       at a fixed bed location. "S" specifies strokes (i.e. back-forth motions)
+ *       between the start / end points.
+ *
+ *   P1  Zig-zag pattern between (X0, Y0) and (X1, Y1), "T" specifies the
+ *       number of zig-zag triangles to do. "S" defines the number of strokes.
+ *       Zig-zags are done in whichever is the narrower dimension.
+ *       For example, "G12 P1 S1 T3" will execute:
+ *
+ *          --
+ *         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
+ *         |           |    /  \      /  \      /  \    |
+ *       A |           |   /    \    /    \    /    \   |
+ *         |           |  /      \  /      \  /      \  |
+ *         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
+ *          --         +--------------------------------+
+ *                       |________|_________|_________|
+ *                           T1        T2        T3
+ *
+ *   P2  Circular pattern with middle at NOZZLE_CLEAN_CIRCLE_MIDDLE.
+ *       "R" specifies the radius. "S" specifies the stroke count.
+ *       Before starting, the nozzle moves to NOZZLE_CLEAN_START_POINT.
+ *
+ *   Caveats: The ending Z should be the same as starting Z.
+ * Attention: EXPERIMENTAL. G-code arguments may change.
+ *
+ */
 //#define NOZZLE_CLEAN_FEATURE
 
 #if ENABLED(NOZZLE_CLEAN_FEATURE)
   #define NOZZLE_CLEAN_GOBACK
 #endif
 
-//
-// Print job timer
-//
-// Enable this option to automatically start and stop the
-// print job timer when M104/M109/M190 commands are received.
-// M104 (extruder without wait) - high temp = none, low temp = stop timer
-// M109 (extruder with wait) - high temp = start timer, low temp = stop timer
-// M190 (bed with wait) - high temp = start timer, low temp = none
-//
-// In all cases the timer can be started and stopped using
-// the following commands:
-//
-// - M75  - Start the print job timer
-// - M76  - Pause the print job timer
-// - M77  - Stop the print job timer
+/**
+ * Print Job Timer
+ *
+ * Automatically start and stop the print job timer on M104/M109/M190.
+ *
+ *   M104 (hotend, no wait) - high temp = none,        low temp = stop timer
+ *   M109 (hotend, wait)    - high temp = start timer, low temp = stop timer
+ *   M190 (bed, wait)       - high temp = start timer, low temp = none
+ *
+ * The timer can also be controlled with the following commands:
+ *
+ *   M75 - Start the print job timer
+ *   M76 - Pause the print job timer
+ *   M77 - Stop the print job timer
+ */
 #define PRINTJOB_TIMER_AUTOSTART
 
-//
-// Print Counter
-//
-// When enabled Marlin will keep track of some print statistical data such as:
-//  - Total print jobs
-//  - Total successful print jobs
-//  - Total failed print jobs
-//  - Total time printing
-//
-// This information can be viewed by the M78 command.
+/**
+ * Print Counter
+ *
+ * Track statistical data such as:
+ *
+ *  - Total print jobs
+ *  - Total successful print jobs
+ *  - Total failed print jobs
+ *  - Total time printing
+ *
+ * View the current statistics with M78.
+ */
 //#define PRINTCOUNTER
 
 //=============================================================================
 
 // @section lcd
 
-//
-// LCD LANGUAGE
-//
-// Here you may choose the language used by Marlin on the LCD menus, the following
-// list of languages are available:
-//    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
-//    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
-//
-// :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
-//
+/**
+ * LCD LANGUAGE
+ *
+ * Select the language to display on the LCD. These languages are available:
+ *
+ *    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
+ *    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
+ *
+ * :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
+ */
 //#define LCD_LANGUAGE en
 
-//
-// LCD Character Set
-//
-// Note: This option is NOT applicable to Graphical Displays.
-//
-// All character-based LCD's provide ASCII plus one of these
-// language extensions:
-//
-//  - JAPANESE ... the most common
-//  - WESTERN  ... with more accented characters
-//  - CYRILLIC ... for the Russian language
-//
-// To determine the language extension installed on your controller:
-//
-//  - Compile and upload with LCD_LANGUAGE set to 'test'
-//  - Click the controller to view the LCD menu
-//  - The LCD will display Japanese, Western, or Cyrillic text
-//
-// See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-// :['JAPANESE', 'WESTERN', 'CYRILLIC']
-//
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCDs provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https: *github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE', 'WESTERN', 'CYRILLIC']
+ */
 #define DISPLAY_CHARSET_HD44780 JAPANESE
 
-//
-// LCD TYPE
-//
-// You may choose ULTRA_LCD if you have character based LCD with 16x2, 16x4, 20x2,
-// 20x4 char/lines or DOGLCD for the full graphics display with 128x64 pixels
-// (ST7565R family). (This option will be set automatically for certain displays.)
-//
-// IMPORTANT NOTE: The U8glib library is required for Full Graphic Display!
-//                 https://github.com/olikraus/U8glib_Arduino
-//
+/**
+ * LCD TYPE
+ *
+ * Enable ULTRA_LCD for a 16x2, 16x4, 20x2, or 20x4 character-based LCD.
+ * Enable DOGLCD for a 128x64 (ST7565R) Full Graphical Display.
+ * (These options will be enabled automatically for most displays.)
+ *
+ * IMPORTANT: The U8glib library is required for Full Graphic Display!
+ *            https://github.com/olikraus/U8glib_Arduino
+ */
 #define ULTRA_LCD   // Character based
 //#define DOGLCD      // Full graphics display
 
-//
-// SD CARD
-//
-// SD Card support is disabled by default. If your controller has an SD slot,
-// you must uncomment the following option or it won't work.
-//
+/**
+ * SD CARD
+ *
+ * SD Card support is disabled by default. If your controller has an SD slot,
+ * you must uncomment the following option or it won't work.
+ *
+ */
 #define SDSUPPORT
 
-//
-// SD CARD: SPI SPEED
-//
-// Uncomment ONE of the following items to use a slower SPI transfer
-// speed. This is usually required if you're getting volume init errors.
-//
+/**
+ * SD CARD: SPI SPEED
+ *
+ * Enable one of the following items for a slower SPI transfer speed.
+ * This may be required to resolve "volume init" errors.
+ */
 //#define SPI_SPEED SPI_HALF_SPEED
 //#define SPI_SPEED SPI_QUARTER_SPEED
 //#define SPI_SPEED SPI_EIGHTH_SPEED
 
-//
-// SD CARD: ENABLE CRC
-//
-// Use CRC checks and retries on the SD communication.
-//
+/**
+ * SD CARD: ENABLE CRC
+ *
+ * Use CRC checks and retries on the SD communication.
+ */
 //#define SD_CHECK_AND_RETRY
 
 //
  */
 
 //
-// This option reverses the encoder direction everywhere
+// This option reverses the encoder direction everywhere.
 //
 //  Set this option if CLOCKWISE causes values to DECREASE
 //

Marlin/example_configurations/adafruit/ST7565/Configuration.h

 #define PREHEAT_2_TEMP_BED    110
 #define PREHEAT_2_FAN_SPEED     0 // Value from 0 to 255
 
-//
-// Nozzle Park -- EXPERIMENTAL
-//
-// When enabled allows the user to define a special XYZ position, inside the
-// machine's topology, to park the nozzle when idle or when receiving the G27
-// command.
-//
-// The "P" paramenter controls what is the action applied to the Z axis:
-//    P0: (Default) If current Z-pos is lower than Z-park then the nozzle will
-//        be raised to reach Z-park height.
-//
-//    P1: No matter the current Z-pos, the nozzle will be raised/lowered to
-//        reach Z-park height.
-//
-//    P2: The nozzle height will be raised by Z-park amount but never going over
-//        the machine's limit of Z_MAX_POS.
-//
+/**
+ * Nozzle Park -- EXPERIMENTAL
+ *
+ * Park the nozzle at the given XYZ position on idle or G27.
+ *
+ * The "P" parameter controls the action applied to the Z axis:
+ *
+ *    P0  (Default) If Z is below park Z raise the nozzle.
+ *    P1  Raise the nozzle always to Z-park height.
+ *    P2  Raise the nozzle by Z-park amount, limited to Z_MAX_POS.
+ */
 //#define NOZZLE_PARK_FEATURE
 
 #if ENABLED(NOZZLE_PARK_FEATURE)
   #define NOZZLE_PARK_POINT { (X_MIN_POS + 10), (Y_MAX_POS - 10), 20 }
 #endif
 
-//
-// Clean Nozzle Feature -- EXPERIMENTAL
-//
-// When enabled allows the user to send G12 to start the nozzle cleaning
-// process, the G-Code accepts two parameters:
-//   "P" for pattern selection
-//   "S" for defining the number of strokes/repetitions
-//
-// Available list of patterns:
-//   P0: This is the default pattern, this process requires a sponge type
-//       material at a fixed bed location. S defines "strokes" i.e.
-//       back-and-forth movements between the starting and end points.
-//
-//   P1: This starts a zig-zag pattern between (X0, Y0) and (X1, Y1), "T"
-//       defines the number of zig-zag triangles to be done. "S" defines the
-//       number of strokes aka one back-and-forth movement. Zig-zags will
-//       be performed in whichever dimension is smallest. As an example,
-//       sending "G12 P1 S1 T3" will execute:
-//
-//          --
-//         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
-//         |           |    /  \      /  \      /  \    |
-//       A |           |   /    \    /    \    /    \   |
-//         |           |  /      \  /      \  /      \  |
-//         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
-//          --         +--------------------------------+
-//                       |________|_________|_________|
-//                           T1        T2        T3
-//
-//   P2: This starts a circular pattern with circle with middle in
-//       NOZZLE_CLEAN_CIRCLE_MIDDLE radius of R and stroke count of S.
-//       Before starting the circle nozzle goes to NOZZLE_CLEAN_START_POINT.
-//
-// Caveats: End point Z should use the same value as Start point Z.
-//
-// Attention: This is an EXPERIMENTAL feature, in the future the G-code arguments
-// may change to add new functionality like different wipe patterns.
-//
+/**
+ * Clean Nozzle Feature -- EXPERIMENTAL
+ *
+ * Adds the G12 command to perform a nozzle cleaning process.
+ *
+ * Parameters:
+ *   P  Pattern
+ *   S  Strokes / Repetitions
+ *   T  Triangles (P1 only)
+ *
+ * Patterns:
+ *   P0  Straight line (default). This process requires a sponge type material
+ *       at a fixed bed location. "S" specifies strokes (i.e. back-forth motions)
+ *       between the start / end points.
+ *
+ *   P1  Zig-zag pattern between (X0, Y0) and (X1, Y1), "T" specifies the
+ *       number of zig-zag triangles to do. "S" defines the number of strokes.
+ *       Zig-zags are done in whichever is the narrower dimension.
+ *       For example, "G12 P1 S1 T3" will execute:
+ *
+ *          --
+ *         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
+ *         |           |    /  \      /  \      /  \    |
+ *       A |           |   /    \    /    \    /    \   |
+ *         |           |  /      \  /      \  /      \  |
+ *         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
+ *          --         +--------------------------------+
+ *                       |________|_________|_________|
+ *                           T1        T2        T3
+ *
+ *   P2  Circular pattern with middle at NOZZLE_CLEAN_CIRCLE_MIDDLE.
+ *       "R" specifies the radius. "S" specifies the stroke count.
+ *       Before starting, the nozzle moves to NOZZLE_CLEAN_START_POINT.
+ *
+ *   Caveats: The ending Z should be the same as starting Z.
+ * Attention: EXPERIMENTAL. G-code arguments may change.
+ *
+ */
 //#define NOZZLE_CLEAN_FEATURE
 
 #if ENABLED(NOZZLE_CLEAN_FEATURE)
   #define NOZZLE_CLEAN_GOBACK
 #endif
 
-//
-// Print job timer
-//
-// Enable this option to automatically start and stop the
-// print job timer when M104/M109/M190 commands are received.
-// M104 (extruder without wait) - high temp = none, low temp = stop timer
-// M109 (extruder with wait) - high temp = start timer, low temp = stop timer
-// M190 (bed with wait) - high temp = start timer, low temp = none
-//
-// In all cases the timer can be started and stopped using
-// the following commands:
-//
-// - M75  - Start the print job timer
-// - M76  - Pause the print job timer
-// - M77  - Stop the print job timer
+/**
+ * Print Job Timer
+ *
+ * Automatically start and stop the print job timer on M104/M109/M190.
+ *
+ *   M104 (hotend, no wait) - high temp = none,        low temp = stop timer
+ *   M109 (hotend, wait)    - high temp = start timer, low temp = stop timer
+ *   M190 (bed, wait)       - high temp = start timer, low temp = none
+ *
+ * The timer can also be controlled with the following commands:
+ *
+ *   M75 - Start the print job timer
+ *   M76 - Pause the print job timer
+ *   M77 - Stop the print job timer
+ */
 #define PRINTJOB_TIMER_AUTOSTART
 
-//
-// Print Counter
-//
-// When enabled Marlin will keep track of some print statistical data such as:
-//  - Total print jobs
-//  - Total successful print jobs
-//  - Total failed print jobs
-//  - Total time printing
-//
-// This information can be viewed by the M78 command.
+/**
+ * Print Counter
+ *
+ * Track statistical data such as:
+ *
+ *  - Total print jobs
+ *  - Total successful print jobs
+ *  - Total failed print jobs
+ *  - Total time printing
+ *
+ * View the current statistics with M78.
+ */
 //#define PRINTCOUNTER
 
 //=============================================================================
 
 // @section lcd
 
-//
-// LCD LANGUAGE
-//
-// Here you may choose the language used by Marlin on the LCD menus, the following
-// list of languages are available:
-//    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
-//    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
-//
-// :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
-//
+/**
+ * LCD LANGUAGE
+ *
+ * Select the language to display on the LCD. These languages are available:
+ *
+ *    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
+ *    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
+ *
+ * :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
+ */
 #define LCD_LANGUAGE en
 
-//
-// LCD Character Set
-//
-// Note: This option is NOT applicable to Graphical Displays.
-//
-// All character-based LCD's provide ASCII plus one of these
-// language extensions:
-//
-//  - JAPANESE ... the most common
-//  - WESTERN  ... with more accented characters
-//  - CYRILLIC ... for the Russian language
-//
-// To determine the language extension installed on your controller:
-//
-//  - Compile and upload with LCD_LANGUAGE set to 'test'
-//  - Click the controller to view the LCD menu
-//  - The LCD will display Japanese, Western, or Cyrillic text
-//
-// See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-// :['JAPANESE', 'WESTERN', 'CYRILLIC']
-//
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCDs provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https: *github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE', 'WESTERN', 'CYRILLIC']
+ */
 #define DISPLAY_CHARSET_HD44780 JAPANESE
 
-//
-// LCD TYPE
-//
-// You may choose ULTRA_LCD if you have character based LCD with 16x2, 16x4, 20x2,
-// 20x4 char/lines or DOGLCD for the full graphics display with 128x64 pixels
-// (ST7565R family). (This option will be set automatically for certain displays.)
-//
-// IMPORTANT NOTE: The U8glib library is required for Full Graphic Display!
-//                 https://github.com/olikraus/U8glib_Arduino
-//
+/**
+ * LCD TYPE
+ *
+ * Enable ULTRA_LCD for a 16x2, 16x4, 20x2, or 20x4 character-based LCD.
+ * Enable DOGLCD for a 128x64 (ST7565R) Full Graphical Display.
+ * (These options will be enabled automatically for most displays.)
+ *
+ * IMPORTANT: The U8glib library is required for Full Graphic Display!
+ *            https://github.com/olikraus/U8glib_Arduino
+ */
 //#define ULTRA_LCD   // Character based
 //#define DOGLCD      // Full graphics display
 
-//
-// SD CARD
-//
-// SD Card support is disabled by default. If your controller has an SD slot,
-// you must uncomment the following option or it won't work.
-//
+/**
+ * SD CARD
+ *
+ * SD Card support is disabled by default. If your controller has an SD slot,
+ * you must uncomment the following option or it won't work.
+ *
+ */
 #define SDSUPPORT
 
-//
-// SD CARD: SPI SPEED
-//
-// Uncomment ONE of the following items to use a slower SPI transfer
-// speed. This is usually required if you're getting volume init errors.
-//
+/**
+ * SD CARD: SPI SPEED
+ *
+ * Enable one of the following items for a slower SPI transfer speed.
+ * This may be required to resolve "volume init" errors.
+ */
 #define SPI_SPEED SPI_HALF_SPEED
 //#define SPI_SPEED SPI_QUARTER_SPEED
 //#define SPI_SPEED SPI_EIGHTH_SPEED
 
-//
-// SD CARD: ENABLE CRC
-//
-// Use CRC checks and retries on the SD communication.
-//
+/**
+ * SD CARD: ENABLE CRC
+ *
+ * Use CRC checks and retries on the SD communication.
+ */
 //#define SD_CHECK_AND_RETRY
 
 //
  */
 
 //
-// This option reverses the encoder direction everywhere
+// This option reverses the encoder direction everywhere.
 //
 //  Set this option if CLOCKWISE causes values to DECREASE
 //

Marlin/example_configurations/delta/FLSUN/auto_calibrate/Configuration.h

 #define PREHEAT_2_TEMP_BED    100
 #define PREHEAT_2_FAN_SPEED     0 // Value from 0 to 255
 
-//
-// Nozzle Park -- EXPERIMENTAL
-//
-// When enabled allows the user to define a special XYZ position, inside the
-// machine's topology, to park the nozzle when idle or when receiving the G27
-// command.
-//
-// The "P" paramenter controls what is the action applied to the Z axis:
-//    P0: (Default) If current Z-pos is lower than Z-park then the nozzle will
-//        be raised to reach Z-park height.
-//
-//    P1: No matter the current Z-pos, the nozzle will be raised/lowered to
-//        reach Z-park height.
-//
-//    P2: The nozzle height will be raised by Z-park amount but never going over
-//        the machine's limit of Z_MAX_POS.
-//
+/**
+ * Nozzle Park -- EXPERIMENTAL
+ *
+ * Park the nozzle at the given XYZ position on idle or G27.
+ *
+ * The "P" parameter controls the action applied to the Z axis:
+ *
+ *    P0  (Default) If Z is below park Z raise the nozzle.
+ *    P1  Raise the nozzle always to Z-park height.
+ *    P2  Raise the nozzle by Z-park amount, limited to Z_MAX_POS.
+ */
 //#define NOZZLE_PARK_FEATURE
 
 #if ENABLED(NOZZLE_PARK_FEATURE)
   #define NOZZLE_PARK_POINT { (X_MIN_POS + 10), (Y_MAX_POS - 10), 20 }
 #endif
 
-//
-// Clean Nozzle Feature -- EXPERIMENTAL
-//
-// When enabled allows the user to send G12 to start the nozzle cleaning
-// process, the G-Code accepts two parameters:
-//   "P" for pattern selection
-//   "S" for defining the number of strokes/repetitions
-//
-// Available list of patterns:
-//   P0: This is the default pattern, this process requires a sponge type
-//       material at a fixed bed location. S defines "strokes" i.e.
-//       back-and-forth movements between the starting and end points.
-//
-//   P1: This starts a zig-zag pattern between (X0, Y0) and (X1, Y1), "T"
-//       defines the number of zig-zag triangles to be done. "S" defines the
-//       number of strokes aka one back-and-forth movement. Zig-zags will
-//       be performed in whichever dimension is smallest. As an example,
-//       sending "G12 P1 S1 T3" will execute:
-//
-//          --
-//         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
-//         |           |    /  \      /  \      /  \    |
-//       A |           |   /    \    /    \    /    \   |
-//         |           |  /      \  /      \  /      \  |
-//         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
-//          --         +--------------------------------+
-//                       |________|_________|_________|
-//                           T1        T2        T3
-//
-//   P2: This starts a circular pattern with circle with middle in
-//       NOZZLE_CLEAN_CIRCLE_MIDDLE radius of R and stroke count of S.
-//       Before starting the circle nozzle goes to NOZZLE_CLEAN_START_POINT.
-//
-// Caveats: End point Z should use the same value as Start point Z.
-//
-// Attention: This is an EXPERIMENTAL feature, in the future the G-code arguments
-// may change to add new functionality like different wipe patterns.
-//
+/**
+ * Clean Nozzle Feature -- EXPERIMENTAL
+ *
+ * Adds the G12 command to perform a nozzle cleaning process.
+ *
+ * Parameters:
+ *   P  Pattern
+ *   S  Strokes / Repetitions
+ *   T  Triangles (P1 only)
+ *
+ * Patterns:
+ *   P0  Straight line (default). This process requires a sponge type material
+ *       at a fixed bed location. "S" specifies strokes (i.e. back-forth motions)
+ *       between the start / end points.
+ *
+ *   P1  Zig-zag pattern between (X0, Y0) and (X1, Y1), "T" specifies the
+ *       number of zig-zag triangles to do. "S" defines the number of strokes.
+ *       Zig-zags are done in whichever is the narrower dimension.
+ *       For example, "G12 P1 S1 T3" will execute:
+ *
+ *          --
+ *         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
+ *         |           |    /  \      /  \      /  \    |
+ *       A |           |   /    \    /    \    /    \   |
+ *         |           |  /      \  /      \  /      \  |
+ *         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
+ *          --         +--------------------------------+
+ *                       |________|_________|_________|
+ *                           T1        T2        T3
+ *
+ *   P2  Circular pattern with middle at NOZZLE_CLEAN_CIRCLE_MIDDLE.
+ *       "R" specifies the radius. "S" specifies the stroke count.
+ *       Before starting, the nozzle moves to NOZZLE_CLEAN_START_POINT.
+ *
+ *   Caveats: The ending Z should be the same as starting Z.
+ * Attention: EXPERIMENTAL. G-code arguments may change.
+ *
+ */
 //#define NOZZLE_CLEAN_FEATURE
 
 #if ENABLED(NOZZLE_CLEAN_FEATURE)
   #define NOZZLE_CLEAN_GOBACK
 #endif
 
-//
-// Print job timer
-//
-// Enable this option to automatically start and stop the
-// print job timer when M104/M109/M190 commands are received.
-// M104 (extruder without wait) - high temp = none, low temp = stop timer
-// M109 (extruder with wait) - high temp = start timer, low temp = stop timer
-// M190 (bed with wait) - high temp = start timer, low temp = none
-//
-// In all cases the timer can be started and stopped using
-// the following commands:
-//
-// - M75  - Start the print job timer
-// - M76  - Pause the print job timer
-// - M77  - Stop the print job timer
+/**
+ * Print Job Timer
+ *
+ * Automatically start and stop the print job timer on M104/M109/M190.
+ *
+ *   M104 (hotend, no wait) - high temp = none,        low temp = stop timer
+ *   M109 (hotend, wait)    - high temp = start timer, low temp = stop timer
+ *   M190 (bed, wait)       - high temp = start timer, low temp = none
+ *
+ * The timer can also be controlled with the following commands:
+ *
+ *   M75 - Start the print job timer
+ *   M76 - Pause the print job timer
+ *   M77 - Stop the print job timer
+ */
 #define PRINTJOB_TIMER_AUTOSTART
 
-//
-// Print Counter
-//
-// When enabled Marlin will keep track of some print statistical data such as:
-//  - Total print jobs
-//  - Total successful print jobs
-//  - Total failed print jobs
-//  - Total time printing
-//
-// This information can be viewed by the M78 command.
+/**
+ * Print Counter
+ *
+ * Track statistical data such as:
+ *
+ *  - Total print jobs
+ *  - Total successful print jobs
+ *  - Total failed print jobs
+ *  - Total time printing
+ *
+ * View the current statistics with M78.
+ */
 #define PRINTCOUNTER
 
 //=============================================================================
 
 // @section lcd
 
-//
-// LCD LANGUAGE
-//
-// Here you may choose the language used by Marlin on the LCD menus, the following
-// list of languages are available:
-//    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
-//    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
-//
-// :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
-//
+/**
+ * LCD LANGUAGE
+ *
+ * Select the language to display on the LCD. These languages are available:
+ *
+ *    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
+ *    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
+ *
+ * :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
+ */
 #define LCD_LANGUAGE en
 
-//
-// LCD Character Set
-//
-// Note: This option is NOT applicable to Graphical Displays.
-//
-// All character-based LCD's provide ASCII plus one of these
-// language extensions:
-//
-//  - JAPANESE ... the most common
-//  - WESTERN  ... with more accented characters
-//  - CYRILLIC ... for the Russian language
-//
-// To determine the language extension installed on your controller:
-//
-//  - Compile and upload with LCD_LANGUAGE set to 'test'
-//  - Click the controller to view the LCD menu
-//  - The LCD will display Japanese, Western, or Cyrillic text
-//
-// See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-// :['JAPANESE', 'WESTERN', 'CYRILLIC']
-//
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCDs provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https: *github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE', 'WESTERN', 'CYRILLIC']
+ */
 #define DISPLAY_CHARSET_HD44780 WESTERN
 
-//
-// LCD TYPE
-//
-// You may choose ULTRA_LCD if you have character based LCD with 16x2, 16x4, 20x2,
-// 20x4 char/lines or DOGLCD for the full graphics display with 128x64 pixels
-// (ST7565R family). (This option will be set automatically for certain displays.)
-//
-// IMPORTANT NOTE: The U8glib library is required for Full Graphic Display!
-//                 https://github.com/olikraus/U8glib_Arduino
-//
+/**
+ * LCD TYPE
+ *
+ * Enable ULTRA_LCD for a 16x2, 16x4, 20x2, or 20x4 character-based LCD.
+ * Enable DOGLCD for a 128x64 (ST7565R) Full Graphical Display.
+ * (These options will be enabled automatically for most displays.)
+ *
+ * IMPORTANT: The U8glib library is required for Full Graphic Display!
+ *            https://github.com/olikraus/U8glib_Arduino
+ */
 //#define ULTRA_LCD   // Character based
 //#define DOGLCD      // Full graphics display
 
-//
-// SD CARD
-//
-// SD Card support is disabled by default. If your controller has an SD slot,
-// you must uncomment the following option or it won't work.
-//
+/**
+ * SD CARD
+ *
+ * SD Card support is disabled by default. If your controller has an SD slot,
+ * you must uncomment the following option or it won't work.
+ *
+ */
 #define SDSUPPORT
 
-//
-// SD CARD: SPI SPEED
-//
-// Uncomment ONE of the following items to use a slower SPI transfer
-// speed. This is usually required if you're getting volume init errors.
-//
+/**
+ * SD CARD: SPI SPEED
+ *
+ * Enable one of the following items for a slower SPI transfer speed.
+ * This may be required to resolve "volume init" errors.
+ */
 //#define SPI_SPEED SPI_HALF_SPEED
 //#define SPI_SPEED SPI_QUARTER_SPEED
 //#define SPI_SPEED SPI_EIGHTH_SPEED
 
-//
-// SD CARD: ENABLE CRC
-//
-// Use CRC checks and retries on the SD communication.
-//
+/**
+ * SD CARD: ENABLE CRC
+ *
+ * Use CRC checks and retries on the SD communication.
+ */
 #define SD_CHECK_AND_RETRY
 
 //
  */
 
 //
-// This option reverses the encoder direction everywhere
+// This option reverses the encoder direction everywhere.
 //
 //  Set this option if CLOCKWISE causes values to DECREASE
 //

Marlin/example_configurations/delta/FLSUN/kossel_mini/Configuration.h

 #define PREHEAT_2_TEMP_BED    100
 #define PREHEAT_2_FAN_SPEED     0 // Value from 0 to 255
 
-//
-// Nozzle Park -- EXPERIMENTAL
-//
-// When enabled allows the user to define a special XYZ position, inside the
-// machine's topology, to park the nozzle when idle or when receiving the G27
-// command.
-//
-// The "P" paramenter controls what is the action applied to the Z axis:
-//    P0: (Default) If current Z-pos is lower than Z-park then the nozzle will
-//        be raised to reach Z-park height.
-//
-//    P1: No matter the current Z-pos, the nozzle will be raised/lowered to
-//        reach Z-park height.
-//
-//    P2: The nozzle height will be raised by Z-park amount but never going over
-//        the machine's limit of Z_MAX_POS.
-//
+/**
+ * Nozzle Park -- EXPERIMENTAL
+ *
+ * Park the nozzle at the given XYZ position on idle or G27.
+ *
+ * The "P" parameter controls the action applied to the Z axis:
+ *
+ *    P0  (Default) If Z is below park Z raise the nozzle.
+ *    P1  Raise the nozzle always to Z-park height.
+ *    P2  Raise the nozzle by Z-park amount, limited to Z_MAX_POS.
+ */
 //#define NOZZLE_PARK_FEATURE
 
 #if ENABLED(NOZZLE_PARK_FEATURE)
   #define NOZZLE_PARK_POINT { (X_MIN_POS + 10), (Y_MAX_POS - 10), 20 }
 #endif
 
-//
-// Clean Nozzle Feature -- EXPERIMENTAL
-//
-// When enabled allows the user to send G12 to start the nozzle cleaning
-// process, the G-Code accepts two parameters:
-//   "P" for pattern selection
-//   "S" for defining the number of strokes/repetitions
-//
-// Available list of patterns:
-//   P0: This is the default pattern, this process requires a sponge type
-//       material at a fixed bed location. S defines "strokes" i.e.
-//       back-and-forth movements between the starting and end points.
-//
-//   P1: This starts a zig-zag pattern between (X0, Y0) and (X1, Y1), "T"
-//       defines the number of zig-zag triangles to be done. "S" defines the
-//       number of strokes aka one back-and-forth movement. Zig-zags will
-//       be performed in whichever dimension is smallest. As an example,
-//       sending "G12 P1 S1 T3" will execute:
-//
-//          --
-//         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
-//         |           |    /  \      /  \      /  \    |
-//       A |           |   /    \    /    \    /    \   |
-//         |           |  /      \  /      \  /      \  |
-//         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
-//          --         +--------------------------------+
-//                       |________|_________|_________|
-//                           T1        T2        T3
-//
-//   P2: This starts a circular pattern with circle with middle in
-//       NOZZLE_CLEAN_CIRCLE_MIDDLE radius of R and stroke count of S.
-//       Before starting the circle nozzle goes to NOZZLE_CLEAN_START_POINT.
-//
-// Caveats: End point Z should use the same value as Start point Z.
-//
-// Attention: This is an EXPERIMENTAL feature, in the future the G-code arguments
-// may change to add new functionality like different wipe patterns.
-//
+/**
+ * Clean Nozzle Feature -- EXPERIMENTAL
+ *
+ * Adds the G12 command to perform a nozzle cleaning process.
+ *
+ * Parameters:
+ *   P  Pattern
+ *   S  Strokes / Repetitions
+ *   T  Triangles (P1 only)
+ *
+ * Patterns:
+ *   P0  Straight line (default). This process requires a sponge type material
+ *       at a fixed bed location. "S" specifies strokes (i.e. back-forth motions)
+ *       between the start / end points.
+ *
+ *   P1  Zig-zag pattern between (X0, Y0) and (X1, Y1), "T" specifies the
+ *       number of zig-zag triangles to do. "S" defines the number of strokes.
+ *       Zig-zags are done in whichever is the narrower dimension.
+ *       For example, "G12 P1 S1 T3" will execute:
+ *
+ *          --
+ *         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
+ *         |           |    /  \      /  \      /  \    |
+ *       A |           |   /    \    /    \    /    \   |
+ *         |           |  /      \  /      \  /      \  |
+ *         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
+ *          --         +--------------------------------+
+ *                       |________|_________|_________|
+ *                           T1        T2        T3
+ *
+ *   P2  Circular pattern with middle at NOZZLE_CLEAN_CIRCLE_MIDDLE.
+ *       "R" specifies the radius. "S" specifies the stroke count.
+ *       Before starting, the nozzle moves to NOZZLE_CLEAN_START_POINT.
+ *
+ *   Caveats: The ending Z should be the same as starting Z.
+ * Attention: EXPERIMENTAL. G-code arguments may change.
+ *
+ */
 //#define NOZZLE_CLEAN_FEATURE
 
 #if ENABLED(NOZZLE_CLEAN_FEATURE)
   #define NOZZLE_CLEAN_GOBACK
 #endif
 
-//
-// Print job timer
-//
-// Enable this option to automatically start and stop the
-// print job timer when M104/M109/M190 commands are received.
-// M104 (extruder without wait) - high temp = none, low temp = stop timer
-// M109 (extruder with wait) - high temp = start timer, low temp = stop timer
-// M190 (bed with wait) - high temp = start timer, low temp = none
-//
-// In all cases the timer can be started and stopped using
-// the following commands:
-//
-// - M75  - Start the print job timer
-// - M76  - Pause the print job timer
-// - M77  - Stop the print job timer
+/**
+ * Print Job Timer
+ *
+ * Automatically start and stop the print job timer on M104/M109/M190.
+ *
+ *   M104 (hotend, no wait) - high temp = none,        low temp = stop timer
+ *   M109 (hotend, wait)    - high temp = start timer, low temp = stop timer
+ *   M190 (bed, wait)       - high temp = start timer, low temp = none
+ *
+ * The timer can also be controlled with the following commands:
+ *
+ *   M75 - Start the print job timer
+ *   M76 - Pause the print job timer
+ *   M77 - Stop the print job timer
+ */
 #define PRINTJOB_TIMER_AUTOSTART
 
-//
-// Print Counter
-//
-// When enabled Marlin will keep track of some print statistical data such as:
-//  - Total print jobs
-//  - Total successful print jobs
-//  - Total failed print jobs
-//  - Total time printing
-//
-// This information can be viewed by the M78 command.
+/**
+ * Print Counter
+ *
+ * Track statistical data such as:
+ *
+ *  - Total print jobs
+ *  - Total successful print jobs
+ *  - Total failed print jobs
+ *  - Total time printing
+ *
+ * View the current statistics with M78.
+ */
 #define PRINTCOUNTER
 
 //=============================================================================
 
 // @section lcd
 
-//
-// LCD LANGUAGE
-//
-// Here you may choose the language used by Marlin on the LCD menus, the following
-// list of languages are available:
-//    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
-//    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
-//
-// :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
-//
+/**
+ * LCD LANGUAGE
+ *
+ * Select the language to display on the LCD. These languages are available:
+ *
+ *    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
+ *    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
+ *
+ * :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
+ */
 #define LCD_LANGUAGE en
 
-//
-// LCD Character Set
-//
-// Note: This option is NOT applicable to Graphical Displays.
-//
-// All character-based LCD's provide ASCII plus one of these
-// language extensions:
-//
-//  - JAPANESE ... the most common
-//  - WESTERN  ... with more accented characters
-//  - CYRILLIC ... for the Russian language
-//
-// To determine the language extension installed on your controller:
-//
-//  - Compile and upload with LCD_LANGUAGE set to 'test'
-//  - Click the controller to view the LCD menu
-//  - The LCD will display Japanese, Western, or Cyrillic text
-//
-// See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-// :['JAPANESE', 'WESTERN', 'CYRILLIC']
-//
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCDs provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https: *github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE', 'WESTERN', 'CYRILLIC']
+ */
 #define DISPLAY_CHARSET_HD44780 WESTERN
 
-//
-// LCD TYPE
-//
-// You may choose ULTRA_LCD if you have character based LCD with 16x2, 16x4, 20x2,
-// 20x4 char/lines or DOGLCD for the full graphics display with 128x64 pixels
-// (ST7565R family). (This option will be set automatically for certain displays.)
-//
-// IMPORTANT NOTE: The U8glib library is required for Full Graphic Display!
-//                 https://github.com/olikraus/U8glib_Arduino
-//
+/**
+ * LCD TYPE
+ *
+ * Enable ULTRA_LCD for a 16x2, 16x4, 20x2, or 20x4 character-based LCD.
+ * Enable DOGLCD for a 128x64 (ST7565R) Full Graphical Display.
+ * (These options will be enabled automatically for most displays.)
+ *
+ * IMPORTANT: The U8glib library is required for Full Graphic Display!
+ *            https://github.com/olikraus/U8glib_Arduino
+ */
 //#define ULTRA_LCD   // Character based
 //#define DOGLCD      // Full graphics display
 
-//
-// SD CARD
-//
-// SD Card support is disabled by default. If your controller has an SD slot,
-// you must uncomment the following option or it won't work.
-//
+/**
+ * SD CARD
+ *
+ * SD Card support is disabled by default. If your controller has an SD slot,
+ * you must uncomment the following option or it won't work.
+ *
+ */
 #define SDSUPPORT
 
-//
-// SD CARD: SPI SPEED
-//
-// Uncomment ONE of the following items to use a slower SPI transfer
-// speed. This is usually required if you're getting volume init errors.
-//
+/**
+ * SD CARD: SPI SPEED
+ *
+ * Enable one of the following items for a slower SPI transfer speed.
+ * This may be required to resolve "volume init" errors.
+ */
 //#define SPI_SPEED SPI_HALF_SPEED
 //#define SPI_SPEED SPI_QUARTER_SPEED
 //#define SPI_SPEED SPI_EIGHTH_SPEED
 
-//
-// SD CARD: ENABLE CRC
-//
-// Use CRC checks and retries on the SD communication.
-//
+/**
+ * SD CARD: ENABLE CRC
+ *
+ * Use CRC checks and retries on the SD communication.
+ */
 //#define SD_CHECK_AND_RETRY
 
 //
  */
 
 //
-// This option reverses the encoder direction everywhere
+// This option reverses the encoder direction everywhere.
 //
 //  Set this option if CLOCKWISE causes values to DECREASE
 //

Marlin/example_configurations/delta/generic/Configuration.h

 #define PREHEAT_2_TEMP_BED    100
 #define PREHEAT_2_FAN_SPEED   255 // Value from 0 to 255
 
-//
-// Nozzle Park -- EXPERIMENTAL
-//
-// When enabled allows the user to define a special XYZ position, inside the
-// machine's topology, to park the nozzle when idle or when receiving the G27
-// command.
-//
-// The "P" paramenter controls what is the action applied to the Z axis:
-//    P0: (Default) If current Z-pos is lower than Z-park then the nozzle will
-//        be raised to reach Z-park height.
-//
-//    P1: No matter the current Z-pos, the nozzle will be raised/lowered to
-//        reach Z-park height.
-//
-//    P2: The nozzle height will be raised by Z-park amount but never going over
-//        the machine's limit of Z_MAX_POS.
-//
+/**
+ * Nozzle Park -- EXPERIMENTAL
+ *
+ * Park the nozzle at the given XYZ position on idle or G27.
+ *
+ * The "P" parameter controls the action applied to the Z axis:
+ *
+ *    P0  (Default) If Z is below park Z raise the nozzle.
+ *    P1  Raise the nozzle always to Z-park height.
+ *    P2  Raise the nozzle by Z-park amount, limited to Z_MAX_POS.
+ */
 //#define NOZZLE_PARK_FEATURE
 
 #if ENABLED(NOZZLE_PARK_FEATURE)
   #define NOZZLE_PARK_POINT { (X_MIN_POS + 10), (Y_MAX_POS - 10), 20 }
 #endif
 
-//
-// Clean Nozzle Feature -- EXPERIMENTAL
-//
-// When enabled allows the user to send G12 to start the nozzle cleaning
-// process, the G-Code accepts two parameters:
-//   "P" for pattern selection
-//   "S" for defining the number of strokes/repetitions
-//
-// Available list of patterns:
-//   P0: This is the default pattern, this process requires a sponge type
-//       material at a fixed bed location. S defines "strokes" i.e.
-//       back-and-forth movements between the starting and end points.
-//
-//   P1: This starts a zig-zag pattern between (X0, Y0) and (X1, Y1), "T"
-//       defines the number of zig-zag triangles to be done. "S" defines the
-//       number of strokes aka one back-and-forth movement. Zig-zags will
-//       be performed in whichever dimension is smallest. As an example,
-//       sending "G12 P1 S1 T3" will execute:
-//
-//          --
-//         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
-//         |           |    /  \      /  \      /  \    |
-//       A |           |   /    \    /    \    /    \   |
-//         |           |  /      \  /      \  /      \  |
-//         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
-//          --         +--------------------------------+
-//                       |________|_________|_________|
-//                           T1        T2        T3
-//
-//   P2: This starts a circular pattern with circle with middle in
-//       NOZZLE_CLEAN_CIRCLE_MIDDLE radius of R and stroke count of S.
-//       Before starting the circle nozzle goes to NOZZLE_CLEAN_START_POINT.
-//
-// Caveats: End point Z should use the same value as Start point Z.
-//
-// Attention: This is an EXPERIMENTAL feature, in the future the G-code arguments
-// may change to add new functionality like different wipe patterns.
-//
+/**
+ * Clean Nozzle Feature -- EXPERIMENTAL
+ *
+ * Adds the G12 command to perform a nozzle cleaning process.
+ *
+ * Parameters:
+ *   P  Pattern
+ *   S  Strokes / Repetitions
+ *   T  Triangles (P1 only)
+ *
+ * Patterns:
+ *   P0  Straight line (default). This process requires a sponge type material
+ *       at a fixed bed location. "S" specifies strokes (i.e. back-forth motions)
+ *       between the start / end points.
+ *
+ *   P1  Zig-zag pattern between (X0, Y0) and (X1, Y1), "T" specifies the
+ *       number of zig-zag triangles to do. "S" defines the number of strokes.
+ *       Zig-zags are done in whichever is the narrower dimension.
+ *       For example, "G12 P1 S1 T3" will execute:
+ *
+ *          --
+ *         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
+ *         |           |    /  \      /  \      /  \    |
+ *       A |           |   /    \    /    \    /    \   |
+ *         |           |  /      \  /      \  /      \  |
+ *         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
+ *          --         +--------------------------------+
+ *                       |________|_________|_________|
+ *                           T1        T2        T3
+ *
+ *   P2  Circular pattern with middle at NOZZLE_CLEAN_CIRCLE_MIDDLE.
+ *       "R" specifies the radius. "S" specifies the stroke count.
+ *       Before starting, the nozzle moves to NOZZLE_CLEAN_START_POINT.
+ *
+ *   Caveats: The ending Z should be the same as starting Z.
+ * Attention: EXPERIMENTAL. G-code arguments may change.
+ *
+ */
 //#define NOZZLE_CLEAN_FEATURE
 
 #if ENABLED(NOZZLE_CLEAN_FEATURE)
   #define NOZZLE_CLEAN_GOBACK
 #endif
 
-//
-// Print job timer
-//
-// Enable this option to automatically start and stop the
-// print job timer when M104/M109/M190 commands are received.
-// M104 (extruder without wait) - high temp = none, low temp = stop timer
-// M109 (extruder with wait) - high temp = start timer, low temp = stop timer
-// M190 (bed with wait) - high temp = start timer, low temp = none
-//
-// In all cases the timer can be started and stopped using
-// the following commands:
-//
-// - M75  - Start the print job timer
-// - M76  - Pause the print job timer
-// - M77  - Stop the print job timer
+/**
+ * Print Job Timer
+ *
+ * Automatically start and stop the print job timer on M104/M109/M190.
+ *
+ *   M104 (hotend, no wait) - high temp = none,        low temp = stop timer
+ *   M109 (hotend, wait)    - high temp = start timer, low temp = stop timer
+ *   M190 (bed, wait)       - high temp = start timer, low temp = none
+ *
+ * The timer can also be controlled with the following commands:
+ *
+ *   M75 - Start the print job timer
+ *   M76 - Pause the print job timer
+ *   M77 - Stop the print job timer
+ */
 #define PRINTJOB_TIMER_AUTOSTART
 
-//
-// Print Counter
-//
-// When enabled Marlin will keep track of some print statistical data such as:
-//  - Total print jobs
-//  - Total successful print jobs
-//  - Total failed print jobs
-//  - Total time printing
-//
-// This information can be viewed by the M78 command.
+/**
+ * Print Counter
+ *
+ * Track statistical data such as:
+ *
+ *  - Total print jobs
+ *  - Total successful print jobs
+ *  - Total failed print jobs
+ *  - Total time printing
+ *
+ * View the current statistics with M78.
+ */
 //#define PRINTCOUNTER
 
 //=============================================================================
 
 // @section lcd
 
-//
-// LCD LANGUAGE
-//
-// Here you may choose the language used by Marlin on the LCD menus, the following
-// list of languages are available:
-//    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
-//    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
-//
-// :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
-//
+/**
+ * LCD LANGUAGE
+ *
+ * Select the language to display on the LCD. These languages are available:
+ *
+ *    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
+ *    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
+ *
+ * :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
+ */
 #define LCD_LANGUAGE en
 
-//
-// LCD Character Set
-//
-// Note: This option is NOT applicable to Graphical Displays.
-//
-// All character-based LCD's provide ASCII plus one of these
-// language extensions:
-//
-//  - JAPANESE ... the most common
-//  - WESTERN  ... with more accented characters
-//  - CYRILLIC ... for the Russian language
-//
-// To determine the language extension installed on your controller:
-//
-//  - Compile and upload with LCD_LANGUAGE set to 'test'
-//  - Click the controller to view the LCD menu
-//  - The LCD will display Japanese, Western, or Cyrillic text
-//
-// See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-// :['JAPANESE', 'WESTERN', 'CYRILLIC']
-//
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCDs provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https: *github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE', 'WESTERN', 'CYRILLIC']
+ */
 #define DISPLAY_CHARSET_HD44780 JAPANESE
 
-//
-// LCD TYPE
-//
-// You may choose ULTRA_LCD if you have character based LCD with 16x2, 16x4, 20x2,
-// 20x4 char/lines or DOGLCD for the full graphics display with 128x64 pixels
-// (ST7565R family). (This option will be set automatically for certain displays.)
-//
-// IMPORTANT NOTE: The U8glib library is required for Full Graphic Display!
-//                 https://github.com/olikraus/U8glib_Arduino
-//
+/**
+ * LCD TYPE
+ *
+ * Enable ULTRA_LCD for a 16x2, 16x4, 20x2, or 20x4 character-based LCD.
+ * Enable DOGLCD for a 128x64 (ST7565R) Full Graphical Display.
+ * (These options will be enabled automatically for most displays.)
+ *
+ * IMPORTANT: The U8glib library is required for Full Graphic Display!
+ *            https://github.com/olikraus/U8glib_Arduino
+ */
 //#define ULTRA_LCD   // Character based
 //#define DOGLCD      // Full graphics display
 
-//
-// SD CARD
-//
-// SD Card support is disabled by default. If your controller has an SD slot,
-// you must uncomment the following option or it won't work.
-//
+/**
+ * SD CARD
+ *
+ * SD Card support is disabled by default. If your controller has an SD slot,
+ * you must uncomment the following option or it won't work.
+ *
+ */
 //#define SDSUPPORT
 
-//
-// SD CARD: SPI SPEED
-//
-// Uncomment ONE of the following items to use a slower SPI transfer
-// speed. This is usually required if you're getting volume init errors.
-//
+/**
+ * SD CARD: SPI SPEED
+ *
+ * Enable one of the following items for a slower SPI transfer speed.
+ * This may be required to resolve "volume init" errors.
+ */
 //#define SPI_SPEED SPI_HALF_SPEED
 //#define SPI_SPEED SPI_QUARTER_SPEED
 //#define SPI_SPEED SPI_EIGHTH_SPEED
 
-//
-// SD CARD: ENABLE CRC
-//
-// Use CRC checks and retries on the SD communication.
-//
+/**
+ * SD CARD: ENABLE CRC
+ *
+ * Use CRC checks and retries on the SD communication.
+ */
 //#define SD_CHECK_AND_RETRY
 
 //
  */
 
 //
-// This option reverses the encoder direction everywhere
+// This option reverses the encoder direction everywhere.
 //
 //  Set this option if CLOCKWISE causes values to DECREASE
 //

Marlin/example_configurations/delta/kossel_mini/Configuration.h

 #define PREHEAT_2_TEMP_BED    100
 #define PREHEAT_2_FAN_SPEED   255 // Value from 0 to 255
 
-//
-// Nozzle Park -- EXPERIMENTAL
-//
-// When enabled allows the user to define a special XYZ position, inside the
-// machine's topology, to park the nozzle when idle or when receiving the G27
-// command.
-//
-// The "P" paramenter controls what is the action applied to the Z axis:
-//    P0: (Default) If current Z-pos is lower than Z-park then the nozzle will
-//        be raised to reach Z-park height.
-//
-//    P1: No matter the current Z-pos, the nozzle will be raised/lowered to
-//        reach Z-park height.
-//
-//    P2: The nozzle height will be raised by Z-park amount but never going over
-//        the machine's limit of Z_MAX_POS.
-//
+/**
+ * Nozzle Park -- EXPERIMENTAL
+ *
+ * Park the nozzle at the given XYZ position on idle or G27.
+ *
+ * The "P" parameter controls the action applied to the Z axis:
+ *
+ *    P0  (Default) If Z is below park Z raise the nozzle.
+ *    P1  Raise the nozzle always to Z-park height.
+ *    P2  Raise the nozzle by Z-park amount, limited to Z_MAX_POS.
+ */
 //#define NOZZLE_PARK_FEATURE
 
 #if ENABLED(NOZZLE_PARK_FEATURE)
   #define NOZZLE_PARK_POINT { (X_MIN_POS + 10), (Y_MAX_POS - 10), 20 }
 #endif
 
-//
-// Clean Nozzle Feature -- EXPERIMENTAL
-//
-// When enabled allows the user to send G12 to start the nozzle cleaning
-// process, the G-Code accepts two parameters:
-//   "P" for pattern selection
-//   "S" for defining the number of strokes/repetitions
-//
-// Available list of patterns:
-//   P0: This is the default pattern, this process requires a sponge type
-//       material at a fixed bed location. S defines "strokes" i.e.
-//       back-and-forth movements between the starting and end points.
-//
-//   P1: This starts a zig-zag pattern between (X0, Y0) and (X1, Y1), "T"
-//       defines the number of zig-zag triangles to be done. "S" defines the
-//       number of strokes aka one back-and-forth movement. Zig-zags will
-//       be performed in whichever dimension is smallest. As an example,
-//       sending "G12 P1 S1 T3" will execute:
-//
-//          --
-//         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
-//         |           |    /  \      /  \      /  \    |
-//       A |           |   /    \    /    \    /    \   |
-//         |           |  /      \  /      \  /      \  |
-//         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
-//          --         +--------------------------------+
-//                       |________|_________|_________|
-//                           T1        T2        T3
-//
-//   P2: This starts a circular pattern with circle with middle in
-//       NOZZLE_CLEAN_CIRCLE_MIDDLE radius of R and stroke count of S.
-//       Before starting the circle nozzle goes to NOZZLE_CLEAN_START_POINT.
-//
-// Caveats: End point Z should use the same value as Start point Z.
-//
-// Attention: This is an EXPERIMENTAL feature, in the future the G-code arguments
-// may change to add new functionality like different wipe patterns.
-//
+/**
+ * Clean Nozzle Feature -- EXPERIMENTAL
+ *
+ * Adds the G12 command to perform a nozzle cleaning process.
+ *
+ * Parameters:
+ *   P  Pattern
+ *   S  Strokes / Repetitions
+ *   T  Triangles (P1 only)
+ *
+ * Patterns:
+ *   P0  Straight line (default). This process requires a sponge type material
+ *       at a fixed bed location. "S" specifies strokes (i.e. back-forth motions)
+ *       between the start / end points.
+ *
+ *   P1  Zig-zag pattern between (X0, Y0) and (X1, Y1), "T" specifies the
+ *       number of zig-zag triangles to do. "S" defines the number of strokes.
+ *       Zig-zags are done in whichever is the narrower dimension.
+ *       For example, "G12 P1 S1 T3" will execute:
+ *
+ *          --
+ *         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
+ *         |           |    /  \      /  \      /  \    |
+ *       A |           |   /    \    /    \    /    \   |
+ *         |           |  /      \  /      \  /      \  |
+ *         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
+ *          --         +--------------------------------+
+ *                       |________|_________|_________|
+ *                           T1        T2        T3
+ *
+ *   P2  Circular pattern with middle at NOZZLE_CLEAN_CIRCLE_MIDDLE.
+ *       "R" specifies the radius. "S" specifies the stroke count.
+ *       Before starting, the nozzle moves to NOZZLE_CLEAN_START_POINT.
+ *
+ *   Caveats: The ending Z should be the same as starting Z.
+ * Attention: EXPERIMENTAL. G-code arguments may change.
+ *
+ */
 //#define NOZZLE_CLEAN_FEATURE
 
 #if ENABLED(NOZZLE_CLEAN_FEATURE)
   #define NOZZLE_CLEAN_GOBACK
 #endif
 
-//
-// Print job timer
-//
-// Enable this option to automatically start and stop the
-// print job timer when M104/M109/M190 commands are received.
-// M104 (extruder without wait) - high temp = none, low temp = stop timer
-// M109 (extruder with wait) - high temp = start timer, low temp = stop timer
-// M190 (bed with wait) - high temp = start timer, low temp = none
-//
-// In all cases the timer can be started and stopped using
-// the following commands:
-//
-// - M75  - Start the print job timer
-// - M76  - Pause the print job timer
-// - M77  - Stop the print job timer
+/**
+ * Print Job Timer
+ *
+ * Automatically start and stop the print job timer on M104/M109/M190.
+ *
+ *   M104 (hotend, no wait) - high temp = none,        low temp = stop timer
+ *   M109 (hotend, wait)    - high temp = start timer, low temp = stop timer
+ *   M190 (bed, wait)       - high temp = start timer, low temp = none
+ *
+ * The timer can also be controlled with the following commands:
+ *
+ *   M75 - Start the print job timer
+ *   M76 - Pause the print job timer
+ *   M77 - Stop the print job timer
+ */
 #define PRINTJOB_TIMER_AUTOSTART
 
-//
-// Print Counter
-//
-// When enabled Marlin will keep track of some print statistical data such as:
-//  - Total print jobs
-//  - Total successful print jobs
-//  - Total failed print jobs
-//  - Total time printing
-//
-// This information can be viewed by the M78 command.
+/**
+ * Print Counter
+ *
+ * Track statistical data such as:
+ *
+ *  - Total print jobs
+ *  - Total successful print jobs
+ *  - Total failed print jobs
+ *  - Total time printing
+ *
+ * View the current statistics with M78.
+ */
 //#define PRINTCOUNTER
 
 //=============================================================================
 
 // @section lcd
 
-//
-// LCD LANGUAGE
-//
-// Here you may choose the language used by Marlin on the LCD menus, the following
-// list of languages are available:
-//    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
-//    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
-//
-// :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
-//
+/**
+ * LCD LANGUAGE
+ *
+ * Select the language to display on the LCD. These languages are available:
+ *
+ *    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
+ *    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
+ *
+ * :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
+ */
 #define LCD_LANGUAGE en
 
-//
-// LCD Character Set
-//
-// Note: This option is NOT applicable to Graphical Displays.
-//
-// All character-based LCD's provide ASCII plus one of these
-// language extensions:
-//
-//  - JAPANESE ... the most common
-//  - WESTERN  ... with more accented characters
-//  - CYRILLIC ... for the Russian language
-//
-// To determine the language extension installed on your controller:
-//
-//  - Compile and upload with LCD_LANGUAGE set to 'test'
-//  - Click the controller to view the LCD menu
-//  - The LCD will display Japanese, Western, or Cyrillic text
-//
-// See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-// :['JAPANESE', 'WESTERN', 'CYRILLIC']
-//
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCDs provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https: *github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE', 'WESTERN', 'CYRILLIC']
+ */
 #define DISPLAY_CHARSET_HD44780 JAPANESE
 
-//
-// LCD TYPE
-//
-// You may choose ULTRA_LCD if you have character based LCD with 16x2, 16x4, 20x2,
-// 20x4 char/lines or DOGLCD for the full graphics display with 128x64 pixels
-// (ST7565R family). (This option will be set automatically for certain displays.)
-//
-// IMPORTANT NOTE: The U8glib library is required for Full Graphic Display!
-//                 https://github.com/olikraus/U8glib_Arduino
-//
+/**
+ * LCD TYPE
+ *
+ * Enable ULTRA_LCD for a 16x2, 16x4, 20x2, or 20x4 character-based LCD.
+ * Enable DOGLCD for a 128x64 (ST7565R) Full Graphical Display.
+ * (These options will be enabled automatically for most displays.)
+ *
+ * IMPORTANT: The U8glib library is required for Full Graphic Display!
+ *            https://github.com/olikraus/U8glib_Arduino
+ */
 //#define ULTRA_LCD   // Character based
 //#define DOGLCD      // Full graphics display
 
-//
-// SD CARD
-//
-// SD Card support is disabled by default. If your controller has an SD slot,
-// you must uncomment the following option or it won't work.
-//
+/**
+ * SD CARD
+ *
+ * SD Card support is disabled by default. If your controller has an SD slot,
+ * you must uncomment the following option or it won't work.
+ *
+ */
 //#define SDSUPPORT
 
-//
-// SD CARD: SPI SPEED
-//
-// Uncomment ONE of the following items to use a slower SPI transfer
-// speed. This is usually required if you're getting volume init errors.
-//
+/**
+ * SD CARD: SPI SPEED
+ *
+ * Enable one of the following items for a slower SPI transfer speed.
+ * This may be required to resolve "volume init" errors.
+ */
 //#define SPI_SPEED SPI_HALF_SPEED
 //#define SPI_SPEED SPI_QUARTER_SPEED
 //#define SPI_SPEED SPI_EIGHTH_SPEED
 
-//
-// SD CARD: ENABLE CRC
-//
-// Use CRC checks and retries on the SD communication.
-//
+/**
+ * SD CARD: ENABLE CRC
+ *
+ * Use CRC checks and retries on the SD communication.
+ */
 //#define SD_CHECK_AND_RETRY
 
 //
  */
 
 //
-// This option reverses the encoder direction everywhere
+// This option reverses the encoder direction everywhere.
 //
 //  Set this option if CLOCKWISE causes values to DECREASE
 //

Marlin/example_configurations/delta/kossel_pro/Configuration.h

 #define PREHEAT_2_TEMP_BED    100
 #define PREHEAT_2_FAN_SPEED   255 // Value from 0 to 255
 
-//
-// Nozzle Park -- EXPERIMENTAL
-//
-// When enabled allows the user to define a special XYZ position, inside the
-// machine's topology, to park the nozzle when idle or when receiving the G27
-// command.
-//
-// The "P" paramenter controls what is the action applied to the Z axis:
-//    P0: (Default) If current Z-pos is lower than Z-park then the nozzle will
-//        be raised to reach Z-park height.
-//
-//    P1: No matter the current Z-pos, the nozzle will be raised/lowered to
-//        reach Z-park height.
-//
-//    P2: The nozzle height will be raised by Z-park amount but never going over
-//        the machine's limit of Z_MAX_POS.
-//
+/**
+ * Nozzle Park -- EXPERIMENTAL
+ *
+ * Park the nozzle at the given XYZ position on idle or G27.
+ *
+ * The "P" parameter controls the action applied to the Z axis:
+ *
+ *    P0  (Default) If Z is below park Z raise the nozzle.
+ *    P1  Raise the nozzle always to Z-park height.
+ *    P2  Raise the nozzle by Z-park amount, limited to Z_MAX_POS.
+ */
 //#define NOZZLE_PARK_FEATURE
 
 #if ENABLED(NOZZLE_PARK_FEATURE)
   #define NOZZLE_PARK_POINT { (X_MIN_POS + 10), (Y_MAX_POS - 10), 20 }
 #endif
 
-//
-// Clean Nozzle Feature -- EXPERIMENTAL
-//
-// When enabled allows the user to send G12 to start the nozzle cleaning
-// process, the G-Code accepts two parameters:
-//   "P" for pattern selection
-//   "S" for defining the number of strokes/repetitions
-//
-// Available list of patterns:
-//   P0: This is the default pattern, this process requires a sponge type
-//       material at a fixed bed location. S defines "strokes" i.e.
-//       back-and-forth movements between the starting and end points.
-//
-//   P1: This starts a zig-zag pattern between (X0, Y0) and (X1, Y1), "T"
-//       defines the number of zig-zag triangles to be done. "S" defines the
-//       number of strokes aka one back-and-forth movement. Zig-zags will
-//       be performed in whichever dimension is smallest. As an example,
-//       sending "G12 P1 S1 T3" will execute:
-//
-//          --
-//         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
-//         |           |    /  \      /  \      /  \    |
-//       A |           |   /    \    /    \    /    \   |
-//         |           |  /      \  /      \  /      \  |
-//         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
-//          --         +--------------------------------+
-//                       |________|_________|_________|
-//                           T1        T2        T3
-//
-//   P2: This starts a circular pattern with circle with middle in
-//       NOZZLE_CLEAN_CIRCLE_MIDDLE radius of R and stroke count of S.
-//       Before starting the circle nozzle goes to NOZZLE_CLEAN_START_POINT.
-//
-// Caveats: End point Z should use the same value as Start point Z.
-//
-// Attention: This is an EXPERIMENTAL feature, in the future the G-code arguments
-// may change to add new functionality like different wipe patterns.
-//
+/**
+ * Clean Nozzle Feature -- EXPERIMENTAL
+ *
+ * Adds the G12 command to perform a nozzle cleaning process.
+ *
+ * Parameters:
+ *   P  Pattern
+ *   S  Strokes / Repetitions
+ *   T  Triangles (P1 only)
+ *
+ * Patterns:
+ *   P0  Straight line (default). This process requires a sponge type material
+ *       at a fixed bed location. "S" specifies strokes (i.e. back-forth motions)
+ *       between the start / end points.
+ *
+ *   P1  Zig-zag pattern between (X0, Y0) and (X1, Y1), "T" specifies the
+ *       number of zig-zag triangles to do. "S" defines the number of strokes.
+ *       Zig-zags are done in whichever is the narrower dimension.
+ *       For example, "G12 P1 S1 T3" will execute:
+ *
+ *          --
+ *         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
+ *         |           |    /  \      /  \      /  \    |
+ *       A |           |   /    \    /    \    /    \   |
+ *         |           |  /      \  /      \  /      \  |
+ *         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
+ *          --         +--------------------------------+
+ *                       |________|_________|_________|
+ *                           T1        T2        T3
+ *
+ *   P2  Circular pattern with middle at NOZZLE_CLEAN_CIRCLE_MIDDLE.
+ *       "R" specifies the radius. "S" specifies the stroke count.
+ *       Before starting, the nozzle moves to NOZZLE_CLEAN_START_POINT.
+ *
+ *   Caveats: The ending Z should be the same as starting Z.
+ * Attention: EXPERIMENTAL. G-code arguments may change.
+ *
+ */
 //#define NOZZLE_CLEAN_FEATURE
 
 #if ENABLED(NOZZLE_CLEAN_FEATURE)
   #define NOZZLE_CLEAN_GOBACK
 #endif
 
-//
-// Print job timer
-//
-// Enable this option to automatically start and stop the
-// print job timer when M104/M109/M190 commands are received.
-// M104 (extruder without wait) - high temp = none, low temp = stop timer
-// M109 (extruder with wait) - high temp = start timer, low temp = stop timer
-// M190 (bed with wait) - high temp = start timer, low temp = none
-//
-// In all cases the timer can be started and stopped using
-// the following commands:
-//
-// - M75  - Start the print job timer
-// - M76  - Pause the print job timer
-// - M77  - Stop the print job timer
+/**
+ * Print Job Timer
+ *
+ * Automatically start and stop the print job timer on M104/M109/M190.
+ *
+ *   M104 (hotend, no wait) - high temp = none,        low temp = stop timer
+ *   M109 (hotend, wait)    - high temp = start timer, low temp = stop timer
+ *   M190 (bed, wait)       - high temp = start timer, low temp = none
+ *
+ * The timer can also be controlled with the following commands:
+ *
+ *   M75 - Start the print job timer
+ *   M76 - Pause the print job timer
+ *   M77 - Stop the print job timer
+ */
 #define PRINTJOB_TIMER_AUTOSTART
 
-//
-// Print Counter
-//
-// When enabled Marlin will keep track of some print statistical data such as:
-//  - Total print jobs
-//  - Total successful print jobs
-//  - Total failed print jobs
-//  - Total time printing
-//
-// This information can be viewed by the M78 command.
+/**
+ * Print Counter
+ *
+ * Track statistical data such as:
+ *
+ *  - Total print jobs
+ *  - Total successful print jobs
+ *  - Total failed print jobs
+ *  - Total time printing
+ *
+ * View the current statistics with M78.
+ */
 //#define PRINTCOUNTER
 
 //=============================================================================
 
 // @section lcd
 
-//
-// LCD LANGUAGE
-//
-// Here you may choose the language used by Marlin on the LCD menus, the following
-// list of languages are available:
-//    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
-//    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
-//
-// :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
-//
+/**
+ * LCD LANGUAGE
+ *
+ * Select the language to display on the LCD. These languages are available:
+ *
+ *    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
+ *    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
+ *
+ * :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
+ */
 #define LCD_LANGUAGE en
 
-//
-// LCD Character Set
-//
-// Note: This option is NOT applicable to Graphical Displays.
-//
-// All character-based LCD's provide ASCII plus one of these
-// language extensions:
-//
-//  - JAPANESE ... the most common
-//  - WESTERN  ... with more accented characters
-//  - CYRILLIC ... for the Russian language
-//
-// To determine the language extension installed on your controller:
-//
-//  - Compile and upload with LCD_LANGUAGE set to 'test'
-//  - Click the controller to view the LCD menu
-//  - The LCD will display Japanese, Western, or Cyrillic text
-//
-// See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-// :['JAPANESE', 'WESTERN', 'CYRILLIC']
-//
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCDs provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https: *github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE', 'WESTERN', 'CYRILLIC']
+ */
 #define DISPLAY_CHARSET_HD44780 JAPANESE
 
-//
-// LCD TYPE
-//
-// You may choose ULTRA_LCD if you have character based LCD with 16x2, 16x4, 20x2,
-// 20x4 char/lines or DOGLCD for the full graphics display with 128x64 pixels
-// (ST7565R family). (This option will be set automatically for certain displays.)
-//
-// IMPORTANT NOTE: The U8glib library is required for Full Graphic Display!
-//                 https://github.com/olikraus/U8glib_Arduino
-//
+/**
+ * LCD TYPE
+ *
+ * Enable ULTRA_LCD for a 16x2, 16x4, 20x2, or 20x4 character-based LCD.
+ * Enable DOGLCD for a 128x64 (ST7565R) Full Graphical Display.
+ * (These options will be enabled automatically for most displays.)
+ *
+ * IMPORTANT: The U8glib library is required for Full Graphic Display!
+ *            https://github.com/olikraus/U8glib_Arduino
+ */
 //#define ULTRA_LCD   // Character based
 //#define DOGLCD      // Full graphics display
 
-//
-// SD CARD
-//
-// SD Card support is disabled by default. If your controller has an SD slot,
-// you must uncomment the following option or it won't work.
-//
+/**
+ * SD CARD
+ *
+ * SD Card support is disabled by default. If your controller has an SD slot,
+ * you must uncomment the following option or it won't work.
+ *
+ */
 #define SDSUPPORT
 
-//
-// SD CARD: SPI SPEED
-//
-// Uncomment ONE of the following items to use a slower SPI transfer
-// speed. This is usually required if you're getting volume init errors.
-//
+/**
+ * SD CARD: SPI SPEED
+ *
+ * Enable one of the following items for a slower SPI transfer speed.
+ * This may be required to resolve "volume init" errors.
+ */
 //#define SPI_SPEED SPI_HALF_SPEED
 //#define SPI_SPEED SPI_QUARTER_SPEED
 //#define SPI_SPEED SPI_EIGHTH_SPEED
 
-//
-// SD CARD: ENABLE CRC
-//
-// Use CRC checks and retries on the SD communication.
-//
+/**
+ * SD CARD: ENABLE CRC
+ *
+ * Use CRC checks and retries on the SD communication.
+ */
 //#define SD_CHECK_AND_RETRY
 
 //
  */
 
 //
-// This option reverses the encoder direction everywhere
+// This option reverses the encoder direction everywhere.
 //
 //  Set this option if CLOCKWISE causes values to DECREASE
 //

Marlin/example_configurations/delta/kossel_xl/Configuration.h

 #define PREHEAT_2_TEMP_BED    100
 #define PREHEAT_2_FAN_SPEED   255 // Value from 0 to 255
 
-//
-// Nozzle Park -- EXPERIMENTAL
-//
-// When enabled allows the user to define a special XYZ position, inside the
-// machine's topology, to park the nozzle when idle or when receiving the G27
-// command.
-//
-// The "P" paramenter controls what is the action applied to the Z axis:
-//    P0: (Default) If current Z-pos is lower than Z-park then the nozzle will
-//        be raised to reach Z-park height.
-//
-//    P1: No matter the current Z-pos, the nozzle will be raised/lowered to
-//        reach Z-park height.
-//
-//    P2: The nozzle height will be raised by Z-park amount but never going over
-//        the machine's limit of Z_MAX_POS.
-//
+/**
+ * Nozzle Park -- EXPERIMENTAL
+ *
+ * Park the nozzle at the given XYZ position on idle or G27.
+ *
+ * The "P" parameter controls the action applied to the Z axis:
+ *
+ *    P0  (Default) If Z is below park Z raise the nozzle.
+ *    P1  Raise the nozzle always to Z-park height.
+ *    P2  Raise the nozzle by Z-park amount, limited to Z_MAX_POS.
+ */
 //#define NOZZLE_PARK_FEATURE
 
 #if ENABLED(NOZZLE_PARK_FEATURE)
   #define NOZZLE_PARK_POINT { (X_MIN_POS + 10), (Y_MAX_POS - 10), 20 }
 #endif
 
-//
-// Clean Nozzle Feature -- EXPERIMENTAL
-//
-// When enabled allows the user to send G12 to start the nozzle cleaning
-// process, the G-Code accepts two parameters:
-//   "P" for pattern selection
-//   "S" for defining the number of strokes/repetitions
-//
-// Available list of patterns:
-//   P0: This is the default pattern, this process requires a sponge type
-//       material at a fixed bed location. S defines "strokes" i.e.
-//       back-and-forth movements between the starting and end points.
-//
-//   P1: This starts a zig-zag pattern between (X0, Y0) and (X1, Y1), "T"
-//       defines the number of zig-zag triangles to be done. "S" defines the
-//       number of strokes aka one back-and-forth movement. Zig-zags will
-//       be performed in whichever dimension is smallest. As an example,
-//       sending "G12 P1 S1 T3" will execute:
-//
-//          --
-//         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
-//         |           |    /  \      /  \      /  \    |
-//       A |           |   /    \    /    \    /    \   |
-//         |           |  /      \  /      \  /      \  |
-//         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
-//          --         +--------------------------------+
-//                       |________|_________|_________|
-//                           T1        T2        T3
-//
-//   P2: This starts a circular pattern with circle with middle in
-//       NOZZLE_CLEAN_CIRCLE_MIDDLE radius of R and stroke count of S.
-//       Before starting the circle nozzle goes to NOZZLE_CLEAN_START_POINT.
-//
-// Caveats: End point Z should use the same value as Start point Z.
-//
-// Attention: This is an EXPERIMENTAL feature, in the future the G-code arguments
-// may change to add new functionality like different wipe patterns.
-//
+/**
+ * Clean Nozzle Feature -- EXPERIMENTAL
+ *
+ * Adds the G12 command to perform a nozzle cleaning process.
+ *
+ * Parameters:
+ *   P  Pattern
+ *   S  Strokes / Repetitions
+ *   T  Triangles (P1 only)
+ *
+ * Patterns:
+ *   P0  Straight line (default). This process requires a sponge type material
+ *       at a fixed bed location. "S" specifies strokes (i.e. back-forth motions)
+ *       between the start / end points.
+ *
+ *   P1  Zig-zag pattern between (X0, Y0) and (X1, Y1), "T" specifies the
+ *       number of zig-zag triangles to do. "S" defines the number of strokes.
+ *       Zig-zags are done in whichever is the narrower dimension.
+ *       For example, "G12 P1 S1 T3" will execute:
+ *
+ *          --
+ *         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
+ *         |           |    /  \      /  \      /  \    |
+ *       A |           |   /    \    /    \    /    \   |
+ *         |           |  /      \  /      \  /      \  |
+ *         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
+ *          --         +--------------------------------+
+ *                       |________|_________|_________|
+ *                           T1        T2        T3
+ *
+ *   P2  Circular pattern with middle at NOZZLE_CLEAN_CIRCLE_MIDDLE.
+ *       "R" specifies the radius. "S" specifies the stroke count.
+ *       Before starting, the nozzle moves to NOZZLE_CLEAN_START_POINT.
+ *
+ *   Caveats: The ending Z should be the same as starting Z.
+ * Attention: EXPERIMENTAL. G-code arguments may change.
+ *
+ */
 //#define NOZZLE_CLEAN_FEATURE
 
 #if ENABLED(NOZZLE_CLEAN_FEATURE)
   #define NOZZLE_CLEAN_GOBACK
 #endif
 
-//
-// Print job timer
-//
-// Enable this option to automatically start and stop the
-// print job timer when M104/M109/M190 commands are received.
-// M104 (extruder without wait) - high temp = none, low temp = stop timer
-// M109 (extruder with wait) - high temp = start timer, low temp = stop timer
-// M190 (bed with wait) - high temp = start timer, low temp = none
-//
-// In all cases the timer can be started and stopped using
-// the following commands:
-//
-// - M75  - Start the print job timer
-// - M76  - Pause the print job timer
-// - M77  - Stop the print job timer
+/**
+ * Print Job Timer
+ *
+ * Automatically start and stop the print job timer on M104/M109/M190.
+ *
+ *   M104 (hotend, no wait) - high temp = none,        low temp = stop timer
+ *   M109 (hotend, wait)    - high temp = start timer, low temp = stop timer
+ *   M190 (bed, wait)       - high temp = start timer, low temp = none
+ *
+ * The timer can also be controlled with the following commands:
+ *
+ *   M75 - Start the print job timer
+ *   M76 - Pause the print job timer
+ *   M77 - Stop the print job timer
+ */
 #define PRINTJOB_TIMER_AUTOSTART
 
-//
-// Print Counter
-//
-// When enabled Marlin will keep track of some print statistical data such as:
-//  - Total print jobs
-//  - Total successful print jobs
-//  - Total failed print jobs
-//  - Total time printing
-//
-// This information can be viewed by the M78 command.
+/**
+ * Print Counter
+ *
+ * Track statistical data such as:
+ *
+ *  - Total print jobs
+ *  - Total successful print jobs
+ *  - Total failed print jobs
+ *  - Total time printing
+ *
+ * View the current statistics with M78.
+ */
 //#define PRINTCOUNTER
 
 //=============================================================================
 
 // @section lcd
 
-//
-// LCD LANGUAGE
-//
-// Here you may choose the language used by Marlin on the LCD menus, the following
-// list of languages are available:
-//    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
-//    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
-//
-// :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
-//
+/**
+ * LCD LANGUAGE
+ *
+ * Select the language to display on the LCD. These languages are available:
+ *
+ *    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
+ *    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
+ *
+ * :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
+ */
 #define LCD_LANGUAGE en
 
-//
-// LCD Character Set
-//
-// Note: This option is NOT applicable to Graphical Displays.
-//
-// All character-based LCD's provide ASCII plus one of these
-// language extensions:
-//
-//  - JAPANESE ... the most common
-//  - WESTERN  ... with more accented characters
-//  - CYRILLIC ... for the Russian language
-//
-// To determine the language extension installed on your controller:
-//
-//  - Compile and upload with LCD_LANGUAGE set to 'test'
-//  - Click the controller to view the LCD menu
-//  - The LCD will display Japanese, Western, or Cyrillic text
-//
-// See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-// :['JAPANESE', 'WESTERN', 'CYRILLIC']
-//
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCDs provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https: *github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE', 'WESTERN', 'CYRILLIC']
+ */
 #define DISPLAY_CHARSET_HD44780 JAPANESE
 
-//
-// LCD TYPE
-//
-// You may choose ULTRA_LCD if you have character based LCD with 16x2, 16x4, 20x2,
-// 20x4 char/lines or DOGLCD for the full graphics display with 128x64 pixels
-// (ST7565R family). (This option will be set automatically for certain displays.)
-//
-// IMPORTANT NOTE: The U8glib library is required for Full Graphic Display!
-//                 https://github.com/olikraus/U8glib_Arduino
-//
+/**
+ * LCD TYPE
+ *
+ * Enable ULTRA_LCD for a 16x2, 16x4, 20x2, or 20x4 character-based LCD.
+ * Enable DOGLCD for a 128x64 (ST7565R) Full Graphical Display.
+ * (These options will be enabled automatically for most displays.)
+ *
+ * IMPORTANT: The U8glib library is required for Full Graphic Display!
+ *            https://github.com/olikraus/U8glib_Arduino
+ */
 //#define ULTRA_LCD   // Character based
 //#define DOGLCD      // Full graphics display
 
-//
-// SD CARD
-//
-// SD Card support is disabled by default. If your controller has an SD slot,
-// you must uncomment the following option or it won't work.
-//
+/**
+ * SD CARD
+ *
+ * SD Card support is disabled by default. If your controller has an SD slot,
+ * you must uncomment the following option or it won't work.
+ *
+ */
 //#define SDSUPPORT
 
-//
-// SD CARD: SPI SPEED
-//
-// Uncomment ONE of the following items to use a slower SPI transfer
-// speed. This is usually required if you're getting volume init errors.
-//
+/**
+ * SD CARD: SPI SPEED
+ *
+ * Enable one of the following items for a slower SPI transfer speed.
+ * This may be required to resolve "volume init" errors.
+ */
 //#define SPI_SPEED SPI_HALF_SPEED
 //#define SPI_SPEED SPI_QUARTER_SPEED
 //#define SPI_SPEED SPI_EIGHTH_SPEED
 
-//
-// SD CARD: ENABLE CRC
-//
-// Use CRC checks and retries on the SD communication.
-//
+/**
+ * SD CARD: ENABLE CRC
+ *
+ * Use CRC checks and retries on the SD communication.
+ */
 //#define SD_CHECK_AND_RETRY
 
 //
  */
 
 //
-// This option reverses the encoder direction everywhere
+// This option reverses the encoder direction everywhere.
 //
 //  Set this option if CLOCKWISE causes values to DECREASE
 //

Marlin/example_configurations/gCreate_gMax1.5+/Configuration.h

 #define PREHEAT_2_TEMP_BED    110
 #define PREHEAT_2_FAN_SPEED     0 // Value from 0 to 255
 
-//
-// Nozzle Park -- EXPERIMENTAL
-//
-// When enabled allows the user to define a special XYZ position, inside the
-// machine's topology, to park the nozzle when idle or when receiving the G27
-// command.
-//
-// The "P" paramenter controls what is the action applied to the Z axis:
-//    P0: (Default) If current Z-pos is lower than Z-park then the nozzle will
-//        be raised to reach Z-park height.
-//
-//    P1: No matter the current Z-pos, the nozzle will be raised/lowered to
-//        reach Z-park height.
-//
-//    P2: The nozzle height will be raised by Z-park amount but never going over
-//        the machine's limit of Z_MAX_POS.
-//
+/**
+ * Nozzle Park -- EXPERIMENTAL
+ *
+ * Park the nozzle at the given XYZ position on idle or G27.
+ *
+ * The "P" parameter controls the action applied to the Z axis:
+ *
+ *    P0  (Default) If Z is below park Z raise the nozzle.
+ *    P1  Raise the nozzle always to Z-park height.
+ *    P2  Raise the nozzle by Z-park amount, limited to Z_MAX_POS.
+ */
 //#define NOZZLE_PARK_FEATURE
 
 #if ENABLED(NOZZLE_PARK_FEATURE)
   #define NOZZLE_PARK_POINT { (X_MIN_POS + 10), (Y_MAX_POS - 10), 20 }
 #endif
 
-//
-// Clean Nozzle Feature -- EXPERIMENTAL
-//
-// When enabled allows the user to send G12 to start the nozzle cleaning
-// process, the G-Code accepts two parameters:
-//   "P" for pattern selection
-//   "S" for defining the number of strokes/repetitions
-//
-// Available list of patterns:
-//   P0: This is the default pattern, this process requires a sponge type
-//       material at a fixed bed location. S defines "strokes" i.e.
-//       back-and-forth movements between the starting and end points.
-//
-//   P1: This starts a zig-zag pattern between (X0, Y0) and (X1, Y1), "T"
-//       defines the number of zig-zag triangles to be done. "S" defines the
-//       number of strokes aka one back-and-forth movement. Zig-zags will
-//       be performed in whichever dimension is smallest. As an example,
-//       sending "G12 P1 S1 T3" will execute:
-//
-//          --
-//         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
-//         |           |    /  \      /  \      /  \    |
-//       A |           |   /    \    /    \    /    \   |
-//         |           |  /      \  /      \  /      \  |
-//         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
-//          --         +--------------------------------+
-//                       |________|_________|_________|
-//                           T1        T2        T3
-//
-//   P2: This starts a circular pattern with circle with middle in
-//       NOZZLE_CLEAN_CIRCLE_MIDDLE radius of R and stroke count of S.
-//       Before starting the circle nozzle goes to NOZZLE_CLEAN_START_POINT.
-//
-// Caveats: End point Z should use the same value as Start point Z.
-//
-// Attention: This is an EXPERIMENTAL feature, in the future the G-code arguments
-// may change to add new functionality like different wipe patterns.
-//
+/**
+ * Clean Nozzle Feature -- EXPERIMENTAL
+ *
+ * Adds the G12 command to perform a nozzle cleaning process.
+ *
+ * Parameters:
+ *   P  Pattern
+ *   S  Strokes / Repetitions
+ *   T  Triangles (P1 only)
+ *
+ * Patterns:
+ *   P0  Straight line (default). This process requires a sponge type material
+ *       at a fixed bed location. "S" specifies strokes (i.e. back-forth motions)
+ *       between the start / end points.
+ *
+ *   P1  Zig-zag pattern between (X0, Y0) and (X1, Y1), "T" specifies the
+ *       number of zig-zag triangles to do. "S" defines the number of strokes.
+ *       Zig-zags are done in whichever is the narrower dimension.
+ *       For example, "G12 P1 S1 T3" will execute:
+ *
+ *          --
+ *         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
+ *         |           |    /  \      /  \      /  \    |
+ *       A |           |   /    \    /    \    /    \   |
+ *         |           |  /      \  /      \  /      \  |
+ *         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
+ *          --         +--------------------------------+
+ *                       |________|_________|_________|
+ *                           T1        T2        T3
+ *
+ *   P2  Circular pattern with middle at NOZZLE_CLEAN_CIRCLE_MIDDLE.
+ *       "R" specifies the radius. "S" specifies the stroke count.
+ *       Before starting, the nozzle moves to NOZZLE_CLEAN_START_POINT.
+ *
+ *   Caveats: The ending Z should be the same as starting Z.
+ * Attention: EXPERIMENTAL. G-code arguments may change.
+ *
+ */
 //#define NOZZLE_CLEAN_FEATURE
 
 #if ENABLED(NOZZLE_CLEAN_FEATURE)
   #define NOZZLE_CLEAN_GOBACK
 #endif
 
-//
-// Print job timer
-//
-// Enable this option to automatically start and stop the
-// print job timer when M104/M109/M190 commands are received.
-// M104 (extruder without wait) - high temp = none, low temp = stop timer
-// M109 (extruder with wait) - high temp = start timer, low temp = stop timer
-// M190 (bed with wait) - high temp = start timer, low temp = none
-//
-// In all cases the timer can be started and stopped using
-// the following commands:
-//
-// - M75  - Start the print job timer
-// - M76  - Pause the print job timer
-// - M77  - Stop the print job timer
+/**
+ * Print Job Timer
+ *
+ * Automatically start and stop the print job timer on M104/M109/M190.
+ *
+ *   M104 (hotend, no wait) - high temp = none,        low temp = stop timer
+ *   M109 (hotend, wait)    - high temp = start timer, low temp = stop timer
+ *   M190 (bed, wait)       - high temp = start timer, low temp = none
+ *
+ * The timer can also be controlled with the following commands:
+ *
+ *   M75 - Start the print job timer
+ *   M76 - Pause the print job timer
+ *   M77 - Stop the print job timer
+ */
 #define PRINTJOB_TIMER_AUTOSTART
 
-//
-// Print Counter
-//
-// When enabled Marlin will keep track of some print statistical data such as:
-//  - Total print jobs
-//  - Total successful print jobs
-//  - Total failed print jobs
-//  - Total time printing
-//
-// This information can be viewed by the M78 command.
+/**
+ * Print Counter
+ *
+ * Track statistical data such as:
+ *
+ *  - Total print jobs
+ *  - Total successful print jobs
+ *  - Total failed print jobs
+ *  - Total time printing
+ *
+ * View the current statistics with M78.
+ */
 //#define PRINTCOUNTER
 
 //=============================================================================
 
 // @section lcd
 
-//
-// LCD LANGUAGE
-//
-// Here you may choose the language used by Marlin on the LCD menus, the following
-// list of languages are available:
-//    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
-//    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
-//
-// :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
-//
+/**
+ * LCD LANGUAGE
+ *
+ * Select the language to display on the LCD. These languages are available:
+ *
+ *    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
+ *    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
+ *
+ * :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
+ */
 #define LCD_LANGUAGE en
 
-//
-// LCD Character Set
-//
-// Note: This option is NOT applicable to Graphical Displays.
-//
-// All character-based LCD's provide ASCII plus one of these
-// language extensions:
-//
-//  - JAPANESE ... the most common
-//  - WESTERN  ... with more accented characters
-//  - CYRILLIC ... for the Russian language
-//
-// To determine the language extension installed on your controller:
-//
-//  - Compile and upload with LCD_LANGUAGE set to 'test'
-//  - Click the controller to view the LCD menu
-//  - The LCD will display Japanese, Western, or Cyrillic text
-//
-// See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-// :['JAPANESE', 'WESTERN', 'CYRILLIC']
-//
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCDs provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https: *github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE', 'WESTERN', 'CYRILLIC']
+ */
 #define DISPLAY_CHARSET_HD44780 JAPANESE
 
-//
-// LCD TYPE
-//
-// You may choose ULTRA_LCD if you have character based LCD with 16x2, 16x4, 20x2,
-// 20x4 char/lines or DOGLCD for the full graphics display with 128x64 pixels
-// (ST7565R family). (This option will be set automatically for certain displays.)
-//
-// IMPORTANT NOTE: The U8glib library is required for Full Graphic Display!
-//                 https://github.com/olikraus/U8glib_Arduino
-//
+/**
+ * LCD TYPE
+ *
+ * Enable ULTRA_LCD for a 16x2, 16x4, 20x2, or 20x4 character-based LCD.
+ * Enable DOGLCD for a 128x64 (ST7565R) Full Graphical Display.
+ * (These options will be enabled automatically for most displays.)
+ *
+ * IMPORTANT: The U8glib library is required for Full Graphic Display!
+ *            https://github.com/olikraus/U8glib_Arduino
+ */
 //#define ULTRA_LCD   // Character based
 //#define DOGLCD      // Full graphics display
 
-//
-// SD CARD
-//
-// SD Card support is disabled by default. If your controller has an SD slot,
-// you must uncomment the following option or it won't work.
-//
+/**
+ * SD CARD
+ *
+ * SD Card support is disabled by default. If your controller has an SD slot,
+ * you must uncomment the following option or it won't work.
+ *
+ */
 #define SDSUPPORT
 
-//
-// SD CARD: SPI SPEED
-//
-// Uncomment ONE of the following items to use a slower SPI transfer
-// speed. This is usually required if you're getting volume init errors.
-//
+/**
+ * SD CARD: SPI SPEED
+ *
+ * Enable one of the following items for a slower SPI transfer speed.
+ * This may be required to resolve "volume init" errors.
+ */
 //#define SPI_SPEED SPI_HALF_SPEED
 //#define SPI_SPEED SPI_QUARTER_SPEED
 //#define SPI_SPEED SPI_EIGHTH_SPEED
 
-//
-// SD CARD: ENABLE CRC
-//
-// Use CRC checks and retries on the SD communication.
-//
+/**
+ * SD CARD: ENABLE CRC
+ *
+ * Use CRC checks and retries on the SD communication.
+ */
 #define SD_CHECK_AND_RETRY
 
 //
  */
 
 //
-// This option reverses the encoder direction everywhere
+// This option reverses the encoder direction everywhere.
 //
 //  Set this option if CLOCKWISE causes values to DECREASE
 //

Marlin/example_configurations/makibox/Configuration.h

 #define PREHEAT_2_TEMP_BED    100
 #define PREHEAT_2_FAN_SPEED   255 // Value from 0 to 255
 
-//
-// Nozzle Park -- EXPERIMENTAL
-//
-// When enabled allows the user to define a special XYZ position, inside the
-// machine's topology, to park the nozzle when idle or when receiving the G27
-// command.
-//
-// The "P" paramenter controls what is the action applied to the Z axis:
-//    P0: (Default) If current Z-pos is lower than Z-park then the nozzle will
-//        be raised to reach Z-park height.
-//
-//    P1: No matter the current Z-pos, the nozzle will be raised/lowered to
-//        reach Z-park height.
-//
-//    P2: The nozzle height will be raised by Z-park amount but never going over
-//        the machine's limit of Z_MAX_POS.
-//
+/**
+ * Nozzle Park -- EXPERIMENTAL
+ *
+ * Park the nozzle at the given XYZ position on idle or G27.
+ *
+ * The "P" parameter controls the action applied to the Z axis:
+ *
+ *    P0  (Default) If Z is below park Z raise the nozzle.
+ *    P1  Raise the nozzle always to Z-park height.
+ *    P2  Raise the nozzle by Z-park amount, limited to Z_MAX_POS.
+ */
 //#define NOZZLE_PARK_FEATURE
 
 #if ENABLED(NOZZLE_PARK_FEATURE)
   #define NOZZLE_PARK_POINT { (X_MIN_POS + 10), (Y_MAX_POS - 10), 20 }
 #endif
 
-//
-// Clean Nozzle Feature -- EXPERIMENTAL
-//
-// When enabled allows the user to send G12 to start the nozzle cleaning
-// process, the G-Code accepts two parameters:
-//   "P" for pattern selection
-//   "S" for defining the number of strokes/repetitions
-//
-// Available list of patterns:
-//   P0: This is the default pattern, this process requires a sponge type
-//       material at a fixed bed location. S defines "strokes" i.e.
-//       back-and-forth movements between the starting and end points.
-//
-//   P1: This starts a zig-zag pattern between (X0, Y0) and (X1, Y1), "T"
-//       defines the number of zig-zag triangles to be done. "S" defines the
-//       number of strokes aka one back-and-forth movement. Zig-zags will
-//       be performed in whichever dimension is smallest. As an example,
-//       sending "G12 P1 S1 T3" will execute:
-//
-//          --
-//         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
-//         |           |    /  \      /  \      /  \    |
-//       A |           |   /    \    /    \    /    \   |
-//         |           |  /      \  /      \  /      \  |
-//         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
-//          --         +--------------------------------+
-//                       |________|_________|_________|
-//                           T1        T2        T3
-//
-//   P2: This starts a circular pattern with circle with middle in
-//       NOZZLE_CLEAN_CIRCLE_MIDDLE radius of R and stroke count of S.
-//       Before starting the circle nozzle goes to NOZZLE_CLEAN_START_POINT.
-//
-// Caveats: End point Z should use the same value as Start point Z.
-//
-// Attention: This is an EXPERIMENTAL feature, in the future the G-code arguments
-// may change to add new functionality like different wipe patterns.
-//
+/**
+ * Clean Nozzle Feature -- EXPERIMENTAL
+ *
+ * Adds the G12 command to perform a nozzle cleaning process.
+ *
+ * Parameters:
+ *   P  Pattern
+ *   S  Strokes / Repetitions
+ *   T  Triangles (P1 only)
+ *
+ * Patterns:
+ *   P0  Straight line (default). This process requires a sponge type material
+ *       at a fixed bed location. "S" specifies strokes (i.e. back-forth motions)
+ *       between the start / end points.
+ *
+ *   P1  Zig-zag pattern between (X0, Y0) and (X1, Y1), "T" specifies the
+ *       number of zig-zag triangles to do. "S" defines the number of strokes.
+ *       Zig-zags are done in whichever is the narrower dimension.
+ *       For example, "G12 P1 S1 T3" will execute:
+ *
+ *          --
+ *         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
+ *         |           |    /  \      /  \      /  \    |
+ *       A |           |   /    \    /    \    /    \   |
+ *         |           |  /      \  /      \  /      \  |
+ *         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
+ *          --         +--------------------------------+
+ *                       |________|_________|_________|
+ *                           T1        T2        T3
+ *
+ *   P2  Circular pattern with middle at NOZZLE_CLEAN_CIRCLE_MIDDLE.
+ *       "R" specifies the radius. "S" specifies the stroke count.
+ *       Before starting, the nozzle moves to NOZZLE_CLEAN_START_POINT.
+ *
+ *   Caveats: The ending Z should be the same as starting Z.
+ * Attention: EXPERIMENTAL. G-code arguments may change.
+ *
+ */
 //#define NOZZLE_CLEAN_FEATURE
 
 #if ENABLED(NOZZLE_CLEAN_FEATURE)
   #define NOZZLE_CLEAN_GOBACK
 #endif
 
-//
-// Print job timer
-//
-// Enable this option to automatically start and stop the
-// print job timer when M104/M109/M190 commands are received.
-// M104 (extruder without wait) - high temp = none, low temp = stop timer
-// M109 (extruder with wait) - high temp = start timer, low temp = stop timer
-// M190 (bed with wait) - high temp = start timer, low temp = none
-//
-// In all cases the timer can be started and stopped using
-// the following commands:
-//
-// - M75  - Start the print job timer
-// - M76  - Pause the print job timer
-// - M77  - Stop the print job timer
+/**
+ * Print Job Timer
+ *
+ * Automatically start and stop the print job timer on M104/M109/M190.
+ *
+ *   M104 (hotend, no wait) - high temp = none,        low temp = stop timer
+ *   M109 (hotend, wait)    - high temp = start timer, low temp = stop timer
+ *   M190 (bed, wait)       - high temp = start timer, low temp = none
+ *
+ * The timer can also be controlled with the following commands:
+ *
+ *   M75 - Start the print job timer
+ *   M76 - Pause the print job timer
+ *   M77 - Stop the print job timer
+ */
 #define PRINTJOB_TIMER_AUTOSTART
 
-//
-// Print Counter
-//
-// When enabled Marlin will keep track of some print statistical data such as:
-//  - Total print jobs
-//  - Total successful print jobs
-//  - Total failed print jobs
-//  - Total time printing
-//
-// This information can be viewed by the M78 command.
+/**
+ * Print Counter
+ *
+ * Track statistical data such as:
+ *
+ *  - Total print jobs
+ *  - Total successful print jobs
+ *  - Total failed print jobs
+ *  - Total time printing
+ *
+ * View the current statistics with M78.
+ */
 //#define PRINTCOUNTER
 
 //=============================================================================
 
 // @section lcd
 
-//
-// LCD LANGUAGE
-//
-// Here you may choose the language used by Marlin on the LCD menus, the following
-// list of languages are available:
-//    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
-//    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
-//
-// :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
-//
+/**
+ * LCD LANGUAGE
+ *
+ * Select the language to display on the LCD. These languages are available:
+ *
+ *    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
+ *    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
+ *
+ * :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
+ */
 //#define LCD_LANGUAGE en
 
-//
-// LCD Character Set
-//
-// Note: This option is NOT applicable to Graphical Displays.
-//
-// All character-based LCD's provide ASCII plus one of these
-// language extensions:
-//
-//  - JAPANESE ... the most common
-//  - WESTERN  ... with more accented characters
-//  - CYRILLIC ... for the Russian language
-//
-// To determine the language extension installed on your controller:
-//
-//  - Compile and upload with LCD_LANGUAGE set to 'test'
-//  - Click the controller to view the LCD menu
-//  - The LCD will display Japanese, Western, or Cyrillic text
-//
-// See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-// :['JAPANESE', 'WESTERN', 'CYRILLIC']
-//
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCDs provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https: *github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE', 'WESTERN', 'CYRILLIC']
+ */
 #define DISPLAY_CHARSET_HD44780 JAPANESE
 
-//
-// LCD TYPE
-//
-// You may choose ULTRA_LCD if you have character based LCD with 16x2, 16x4, 20x2,
-// 20x4 char/lines or DOGLCD for the full graphics display with 128x64 pixels
-// (ST7565R family). (This option will be set automatically for certain displays.)
-//
-// IMPORTANT NOTE: The U8glib library is required for Full Graphic Display!
-//                 https://github.com/olikraus/U8glib_Arduino
-//
+/**
+ * LCD TYPE
+ *
+ * Enable ULTRA_LCD for a 16x2, 16x4, 20x2, or 20x4 character-based LCD.
+ * Enable DOGLCD for a 128x64 (ST7565R) Full Graphical Display.
+ * (These options will be enabled automatically for most displays.)
+ *
+ * IMPORTANT: The U8glib library is required for Full Graphic Display!
+ *            https://github.com/olikraus/U8glib_Arduino
+ */
 //#define ULTRA_LCD   // Character based
 //#define DOGLCD      // Full graphics display
 
-//
-// SD CARD
-//
-// SD Card support is disabled by default. If your controller has an SD slot,
-// you must uncomment the following option or it won't work.
-//
+/**
+ * SD CARD
+ *
+ * SD Card support is disabled by default. If your controller has an SD slot,
+ * you must uncomment the following option or it won't work.
+ *
+ */
 #define SDSUPPORT
 
-//
-// SD CARD: SPI SPEED
-//
-// Uncomment ONE of the following items to use a slower SPI transfer
-// speed. This is usually required if you're getting volume init errors.
-//
+/**
+ * SD CARD: SPI SPEED
+ *
+ * Enable one of the following items for a slower SPI transfer speed.
+ * This may be required to resolve "volume init" errors.
+ */
 #define SPI_SPEED SPI_HALF_SPEED
 //#define SPI_SPEED SPI_QUARTER_SPEED
 //#define SPI_SPEED SPI_EIGHTH_SPEED
 
-//
-// SD CARD: ENABLE CRC
-//
-// Use CRC checks and retries on the SD communication.
-//
+/**
+ * SD CARD: ENABLE CRC
+ *
+ * Use CRC checks and retries on the SD communication.
+ */
 //#define SD_CHECK_AND_RETRY
 
 //
  */
 
 //
-// This option reverses the encoder direction everywhere
+// This option reverses the encoder direction everywhere.
 //
 //  Set this option if CLOCKWISE causes values to DECREASE
 //

Marlin/example_configurations/tvrrug/Round2/Configuration.h

 #define PREHEAT_2_TEMP_BED    100
 #define PREHEAT_2_FAN_SPEED   255 // Value from 0 to 255
 
-//
-// Nozzle Park -- EXPERIMENTAL
-//
-// When enabled allows the user to define a special XYZ position, inside the
-// machine's topology, to park the nozzle when idle or when receiving the G27
-// command.
-//
-// The "P" paramenter controls what is the action applied to the Z axis:
-//    P0: (Default) If current Z-pos is lower than Z-park then the nozzle will
-//        be raised to reach Z-park height.
-//
-//    P1: No matter the current Z-pos, the nozzle will be raised/lowered to
-//        reach Z-park height.
-//
-//    P2: The nozzle height will be raised by Z-park amount but never going over
-//        the machine's limit of Z_MAX_POS.
-//
+/**
+ * Nozzle Park -- EXPERIMENTAL
+ *
+ * Park the nozzle at the given XYZ position on idle or G27.
+ *
+ * The "P" parameter controls the action applied to the Z axis:
+ *
+ *    P0  (Default) If Z is below park Z raise the nozzle.
+ *    P1  Raise the nozzle always to Z-park height.
+ *    P2  Raise the nozzle by Z-park amount, limited to Z_MAX_POS.
+ */
 //#define NOZZLE_PARK_FEATURE
 
 #if ENABLED(NOZZLE_PARK_FEATURE)
   #define NOZZLE_PARK_POINT { (X_MIN_POS + 10), (Y_MAX_POS - 10), 20 }
 #endif
 
-//
-// Clean Nozzle Feature -- EXPERIMENTAL
-//
-// When enabled allows the user to send G12 to start the nozzle cleaning
-// process, the G-Code accepts two parameters:
-//   "P" for pattern selection
-//   "S" for defining the number of strokes/repetitions
-//
-// Available list of patterns:
-//   P0: This is the default pattern, this process requires a sponge type
-//       material at a fixed bed location. S defines "strokes" i.e.
-//       back-and-forth movements between the starting and end points.
-//
-//   P1: This starts a zig-zag pattern between (X0, Y0) and (X1, Y1), "T"
-//       defines the number of zig-zag triangles to be done. "S" defines the
-//       number of strokes aka one back-and-forth movement. Zig-zags will
-//       be performed in whichever dimension is smallest. As an example,
-//       sending "G12 P1 S1 T3" will execute:
-//
-//          --
-//         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
-//         |           |    /  \      /  \      /  \    |
-//       A |           |   /    \    /    \    /    \   |
-//         |           |  /      \  /      \  /      \  |
-//         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
-//          --         +--------------------------------+
-//                       |________|_________|_________|
-//                           T1        T2        T3
-//
-//   P2: This starts a circular pattern with circle with middle in
-//       NOZZLE_CLEAN_CIRCLE_MIDDLE radius of R and stroke count of S.
-//       Before starting the circle nozzle goes to NOZZLE_CLEAN_START_POINT.
-//
-// Caveats: End point Z should use the same value as Start point Z.
-//
-// Attention: This is an EXPERIMENTAL feature, in the future the G-code arguments
-// may change to add new functionality like different wipe patterns.
-//
+/**
+ * Clean Nozzle Feature -- EXPERIMENTAL
+ *
+ * Adds the G12 command to perform a nozzle cleaning process.
+ *
+ * Parameters:
+ *   P  Pattern
+ *   S  Strokes / Repetitions
+ *   T  Triangles (P1 only)
+ *
+ * Patterns:
+ *   P0  Straight line (default). This process requires a sponge type material
+ *       at a fixed bed location. "S" specifies strokes (i.e. back-forth motions)
+ *       between the start / end points.
+ *
+ *   P1  Zig-zag pattern between (X0, Y0) and (X1, Y1), "T" specifies the
+ *       number of zig-zag triangles to do. "S" defines the number of strokes.
+ *       Zig-zags are done in whichever is the narrower dimension.
+ *       For example, "G12 P1 S1 T3" will execute:
+ *
+ *          --
+ *         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
+ *         |           |    /  \      /  \      /  \    |
+ *       A |           |   /    \    /    \    /    \   |
+ *         |           |  /      \  /      \  /      \  |
+ *         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
+ *          --         +--------------------------------+
+ *                       |________|_________|_________|
+ *                           T1        T2        T3
+ *
+ *   P2  Circular pattern with middle at NOZZLE_CLEAN_CIRCLE_MIDDLE.
+ *       "R" specifies the radius. "S" specifies the stroke count.
+ *       Before starting, the nozzle moves to NOZZLE_CLEAN_START_POINT.
+ *
+ *   Caveats: The ending Z should be the same as starting Z.
+ * Attention: EXPERIMENTAL. G-code arguments may change.
+ *
+ */
 //#define NOZZLE_CLEAN_FEATURE
 
 #if ENABLED(NOZZLE_CLEAN_FEATURE)
   #define NOZZLE_CLEAN_GOBACK
 #endif
 
-//
-// Print job timer
-//
-// Enable this option to automatically start and stop the
-// print job timer when M104/M109/M190 commands are received.
-// M104 (extruder without wait) - high temp = none, low temp = stop timer
-// M109 (extruder with wait) - high temp = start timer, low temp = stop timer
-// M190 (bed with wait) - high temp = start timer, low temp = none
-//
-// In all cases the timer can be started and stopped using
-// the following commands:
-//
-// - M75  - Start the print job timer
-// - M76  - Pause the print job timer
-// - M77  - Stop the print job timer
+/**
+ * Print Job Timer
+ *
+ * Automatically start and stop the print job timer on M104/M109/M190.
+ *
+ *   M104 (hotend, no wait) - high temp = none,        low temp = stop timer
+ *   M109 (hotend, wait)    - high temp = start timer, low temp = stop timer
+ *   M190 (bed, wait)       - high temp = start timer, low temp = none
+ *
+ * The timer can also be controlled with the following commands:
+ *
+ *   M75 - Start the print job timer
+ *   M76 - Pause the print job timer
+ *   M77 - Stop the print job timer
+ */
 #define PRINTJOB_TIMER_AUTOSTART
 
-//
-// Print Counter
-//
-// When enabled Marlin will keep track of some print statistical data such as:
-//  - Total print jobs
-//  - Total successful print jobs
-//  - Total failed print jobs
-//  - Total time printing
-//
-// This information can be viewed by the M78 command.
+/**
+ * Print Counter
+ *
+ * Track statistical data such as:
+ *
+ *  - Total print jobs
+ *  - Total successful print jobs
+ *  - Total failed print jobs
+ *  - Total time printing
+ *
+ * View the current statistics with M78.
+ */
 //#define PRINTCOUNTER
 
 //=============================================================================
 
 // @section lcd
 
-//
-// LCD LANGUAGE
-//
-// Here you may choose the language used by Marlin on the LCD menus, the following
-// list of languages are available:
-//    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
-//    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
-//
-// :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
-//
+/**
+ * LCD LANGUAGE
+ *
+ * Select the language to display on the LCD. These languages are available:
+ *
+ *    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
+ *    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
+ *
+ * :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
+ */
 //#define LCD_LANGUAGE en
 
-//
-// LCD Character Set
-//
-// Note: This option is NOT applicable to Graphical Displays.
-//
-// All character-based LCD's provide ASCII plus one of these
-// language extensions:
-//
-//  - JAPANESE ... the most common
-//  - WESTERN  ... with more accented characters
-//  - CYRILLIC ... for the Russian language
-//
-// To determine the language extension installed on your controller:
-//
-//  - Compile and upload with LCD_LANGUAGE set to 'test'
-//  - Click the controller to view the LCD menu
-//  - The LCD will display Japanese, Western, or Cyrillic text
-//
-// See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-// :['JAPANESE', 'WESTERN', 'CYRILLIC']
-//
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCDs provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https: *github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE', 'WESTERN', 'CYRILLIC']
+ */
 #define DISPLAY_CHARSET_HD44780 JAPANESE
 
-//
-// LCD TYPE
-//
-// You may choose ULTRA_LCD if you have character based LCD with 16x2, 16x4, 20x2,
-// 20x4 char/lines or DOGLCD for the full graphics display with 128x64 pixels
-// (ST7565R family). (This option will be set automatically for certain displays.)
-//
-// IMPORTANT NOTE: The U8glib library is required for Full Graphic Display!
-//                 https://github.com/olikraus/U8glib_Arduino
-//
+/**
+ * LCD TYPE
+ *
+ * Enable ULTRA_LCD for a 16x2, 16x4, 20x2, or 20x4 character-based LCD.
+ * Enable DOGLCD for a 128x64 (ST7565R) Full Graphical Display.
+ * (These options will be enabled automatically for most displays.)
+ *
+ * IMPORTANT: The U8glib library is required for Full Graphic Display!
+ *            https://github.com/olikraus/U8glib_Arduino
+ */
 //#define ULTRA_LCD   // Character based
 //#define DOGLCD      // Full graphics display
 
-//
-// SD CARD
-//
-// SD Card support is disabled by default. If your controller has an SD slot,
-// you must uncomment the following option or it won't work.
-//
+/**
+ * SD CARD
+ *
+ * SD Card support is disabled by default. If your controller has an SD slot,
+ * you must uncomment the following option or it won't work.
+ *
+ */
 //#define SDSUPPORT
 
-//
-// SD CARD: SPI SPEED
-//
-// Uncomment ONE of the following items to use a slower SPI transfer
-// speed. This is usually required if you're getting volume init errors.
-//
+/**
+ * SD CARD: SPI SPEED
+ *
+ * Enable one of the following items for a slower SPI transfer speed.
+ * This may be required to resolve "volume init" errors.
+ */
 //#define SPI_SPEED SPI_HALF_SPEED
 //#define SPI_SPEED SPI_QUARTER_SPEED
 //#define SPI_SPEED SPI_EIGHTH_SPEED
 
-//
-// SD CARD: ENABLE CRC
-//
-// Use CRC checks and retries on the SD communication.
-//
+/**
+ * SD CARD: ENABLE CRC
+ *
+ * Use CRC checks and retries on the SD communication.
+ */
 //#define SD_CHECK_AND_RETRY
 
 //
  */
 
 //
-// This option reverses the encoder direction everywhere
+// This option reverses the encoder direction everywhere.
 //
 //  Set this option if CLOCKWISE causes values to DECREASE
 //

Marlin/example_configurations/wt150/Configuration.h

 #define PREHEAT_2_TEMP_BED    110
 #define PREHEAT_2_FAN_SPEED     0 // Value from 0 to 255
 
-//
-// Nozzle Park -- EXPERIMENTAL
-//
-// When enabled allows the user to define a special XYZ position, inside the
-// machine's topology, to park the nozzle when idle or when receiving the G27
-// command.
-//
-// The "P" paramenter controls what is the action applied to the Z axis:
-//    P0: (Default) If current Z-pos is lower than Z-park then the nozzle will
-//        be raised to reach Z-park height.
-//
-//    P1: No matter the current Z-pos, the nozzle will be raised/lowered to
-//        reach Z-park height.
-//
-//    P2: The nozzle height will be raised by Z-park amount but never going over
-//        the machine's limit of Z_MAX_POS.
-//
+/**
+ * Nozzle Park -- EXPERIMENTAL
+ *
+ * Park the nozzle at the given XYZ position on idle or G27.
+ *
+ * The "P" parameter controls the action applied to the Z axis:
+ *
+ *    P0  (Default) If Z is below park Z raise the nozzle.
+ *    P1  Raise the nozzle always to Z-park height.
+ *    P2  Raise the nozzle by Z-park amount, limited to Z_MAX_POS.
+ */
 //#define NOZZLE_PARK_FEATURE
 
 #if ENABLED(NOZZLE_PARK_FEATURE)
   #define NOZZLE_PARK_POINT { (X_MIN_POS + 10), (Y_MAX_POS - 10), 20 }
 #endif
 
-//
-// Clean Nozzle Feature -- EXPERIMENTAL
-//
-// When enabled allows the user to send G12 to start the nozzle cleaning
-// process, the G-Code accepts two parameters:
-//   "P" for pattern selection
-//   "S" for defining the number of strokes/repetitions
-//
-// Available list of patterns:
-//   P0: This is the default pattern, this process requires a sponge type
-//       material at a fixed bed location. S defines "strokes" i.e.
-//       back-and-forth movements between the starting and end points.
-//
-//   P1: This starts a zig-zag pattern between (X0, Y0) and (X1, Y1), "T"
-//       defines the number of zig-zag triangles to be done. "S" defines the
-//       number of strokes aka one back-and-forth movement. Zig-zags will
-//       be performed in whichever dimension is smallest. As an example,
-//       sending "G12 P1 S1 T3" will execute:
-//
-//          --
-//         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
-//         |           |    /  \      /  \      /  \    |
-//       A |           |   /    \    /    \    /    \   |
-//         |           |  /      \  /      \  /      \  |
-//         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
-//          --         +--------------------------------+
-//                       |________|_________|_________|
-//                           T1        T2        T3
-//
-//   P2: This starts a circular pattern with circle with middle in
-//       NOZZLE_CLEAN_CIRCLE_MIDDLE radius of R and stroke count of S.
-//       Before starting the circle nozzle goes to NOZZLE_CLEAN_START_POINT.
-//
-// Caveats: End point Z should use the same value as Start point Z.
-//
-// Attention: This is an EXPERIMENTAL feature, in the future the G-code arguments
-// may change to add new functionality like different wipe patterns.
-//
+/**
+ * Clean Nozzle Feature -- EXPERIMENTAL
+ *
+ * Adds the G12 command to perform a nozzle cleaning process.
+ *
+ * Parameters:
+ *   P  Pattern
+ *   S  Strokes / Repetitions
+ *   T  Triangles (P1 only)
+ *
+ * Patterns:
+ *   P0  Straight line (default). This process requires a sponge type material
+ *       at a fixed bed location. "S" specifies strokes (i.e. back-forth motions)
+ *       between the start / end points.
+ *
+ *   P1  Zig-zag pattern between (X0, Y0) and (X1, Y1), "T" specifies the
+ *       number of zig-zag triangles to do. "S" defines the number of strokes.
+ *       Zig-zags are done in whichever is the narrower dimension.
+ *       For example, "G12 P1 S1 T3" will execute:
+ *
+ *          --
+ *         |  (X0, Y1) |     /\        /\        /\     | (X1, Y1)
+ *         |           |    /  \      /  \      /  \    |
+ *       A |           |   /    \    /    \    /    \   |
+ *         |           |  /      \  /      \  /      \  |
+ *         |  (X0, Y0) | /        \/        \/        \ | (X1, Y0)
+ *          --         +--------------------------------+
+ *                       |________|_________|_________|
+ *                           T1        T2        T3
+ *
+ *   P2  Circular pattern with middle at NOZZLE_CLEAN_CIRCLE_MIDDLE.
+ *       "R" specifies the radius. "S" specifies the stroke count.
+ *       Before starting, the nozzle moves to NOZZLE_CLEAN_START_POINT.
+ *
+ *   Caveats: The ending Z should be the same as starting Z.
+ * Attention: EXPERIMENTAL. G-code arguments may change.
+ *
+ */
 //#define NOZZLE_CLEAN_FEATURE
 
 #if ENABLED(NOZZLE_CLEAN_FEATURE)
   #define NOZZLE_CLEAN_GOBACK
 #endif
 
-//
-// Print job timer
-//
-// Enable this option to automatically start and stop the
-// print job timer when M104/M109/M190 commands are received.
-// M104 (extruder without wait) - high temp = none, low temp = stop timer
-// M109 (extruder with wait) - high temp = start timer, low temp = stop timer
-// M190 (bed with wait) - high temp = start timer, low temp = none
-//
-// In all cases the timer can be started and stopped using
-// the following commands:
-//
-// - M75  - Start the print job timer
-// - M76  - Pause the print job timer
-// - M77  - Stop the print job timer
+/**
+ * Print Job Timer
+ *
+ * Automatically start and stop the print job timer on M104/M109/M190.
+ *
+ *   M104 (hotend, no wait) - high temp = none,        low temp = stop timer
+ *   M109 (hotend, wait)    - high temp = start timer, low temp = stop timer
+ *   M190 (bed, wait)       - high temp = start timer, low temp = none
+ *
+ * The timer can also be controlled with the following commands:
+ *
+ *   M75 - Start the print job timer
+ *   M76 - Pause the print job timer
+ *   M77 - Stop the print job timer
+ */
 #define PRINTJOB_TIMER_AUTOSTART
 
-//
-// Print Counter
-//
-// When enabled Marlin will keep track of some print statistical data such as:
-//  - Total print jobs
-//  - Total successful print jobs
-//  - Total failed print jobs
-//  - Total time printing
-//
-// This information can be viewed by the M78 command.
+/**
+ * Print Counter
+ *
+ * Track statistical data such as:
+ *
+ *  - Total print jobs
+ *  - Total successful print jobs
+ *  - Total failed print jobs
+ *  - Total time printing
+ *
+ * View the current statistics with M78.
+ */
 #define PRINTCOUNTER
 
 //=============================================================================
 
 // @section lcd
 
-//
-// LCD LANGUAGE
-//
-// Here you may choose the language used by Marlin on the LCD menus, the following
-// list of languages are available:
-//    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
-//    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
-//
-// :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
-//
+/**
+ * LCD LANGUAGE
+ *
+ * Select the language to display on the LCD. These languages are available:
+ *
+ *    en, an, bg, ca, cn, cz, de, el, el-gr, es, eu, fi, fr, gl, hr, it,
+ *    kana, kana_utf8, nl, pl, pt, pt_utf8, pt-br, pt-br_utf8, ru, tr, uk, test
+ *
+ * :{ 'en':'English', 'an':'Aragonese', 'bg':'Bulgarian', 'ca':'Catalan', 'cn':'Chinese', 'cz':'Czech', 'de':'German', 'el':'Greek', 'el-gr':'Greek (Greece)', 'es':'Spanish', 'eu':'Basque-Euskera', 'fi':'Finnish', 'fr':'French', 'gl':'Galician', 'hr':'Croatian', 'it':'Italian', 'kana':'Japanese', 'kana_utf8':'Japanese (UTF8)', 'nl':'Dutch', 'pl':'Polish', 'pt':'Portuguese', 'pt-br':'Portuguese (Brazilian)', 'pt-br_utf8':'Portuguese (Brazilian UTF8)', 'pt_utf8':'Portuguese (UTF8)', 'ru':'Russian', 'tr':'Turkish', 'uk':'Ukrainian', 'test':'TEST' }
+ */
 #define LCD_LANGUAGE en
 
-//
-// LCD Character Set
-//
-// Note: This option is NOT applicable to Graphical Displays.
-//
-// All character-based LCD's provide ASCII plus one of these
-// language extensions:
-//
-//  - JAPANESE ... the most common
-//  - WESTERN  ... with more accented characters
-//  - CYRILLIC ... for the Russian language
-//
-// To determine the language extension installed on your controller:
-//
-//  - Compile and upload with LCD_LANGUAGE set to 'test'
-//  - Click the controller to view the LCD menu
-//  - The LCD will display Japanese, Western, or Cyrillic text
-//
-// See https://github.com/MarlinFirmware/Marlin/wiki/LCD-Language
-//
-// :['JAPANESE', 'WESTERN', 'CYRILLIC']
-//
+/**
+ * LCD Character Set
+ *
+ * Note: This option is NOT applicable to Graphical Displays.
+ *
+ * All character-based LCDs provide ASCII plus one of these
+ * language extensions:
+ *
+ *  - JAPANESE ... the most common
+ *  - WESTERN  ... with more accented characters
+ *  - CYRILLIC ... for the Russian language
+ *
+ * To determine the language extension installed on your controller:
+ *
+ *  - Compile and upload with LCD_LANGUAGE set to 'test'
+ *  - Click the controller to view the LCD menu
+ *  - The LCD will display Japanese, Western, or Cyrillic text
+ *
+ * See https: *github.com/MarlinFirmware/Marlin/wiki/LCD-Language
+ *
+ * :['JAPANESE', 'WESTERN', 'CYRILLIC']
+ */
 #define DISPLAY_CHARSET_HD44780 JAPANESE
 
-//
-// LCD TYPE
-//
-// You may choose ULTRA_LCD if you have character based LCD with 16x2, 16x4, 20x2,
-// 20x4 char/lines or DOGLCD for the full graphics display with 128x64 pixels
-// (ST7565R family). (This option will be set automatically for certain displays.)
-//
-// IMPORTANT NOTE: The U8glib library is required for Full Graphic Display!
-//                 https://github.com/olikraus/U8glib_Arduino
-//
+/**
+ * LCD TYPE
+ *
+ * Enable ULTRA_LCD for a 16x2, 16x4, 20x2, or 20x4 character-based LCD.
+ * Enable DOGLCD for a 128x64 (ST7565R) Full Graphical Display.
+ * (These options will be enabled automatically for most displays.)
+ *
+ * IMPORTANT: The U8glib library is required for Full Graphic Display!
+ *            https://github.com/olikraus/U8glib_Arduino
+ */
 //#define ULTRA_LCD   // Character based
 //#define DOGLCD      // Full graphics display
 
-//
-// SD CARD
-//
-// SD Card support is disabled by default. If your controller has an SD slot,
-// you must uncomment the following option or it won't work.
-//
+/**
+ * SD CARD
+ *
+ * SD Card support is disabled by default. If your controller has an SD slot,
+ * you must uncomment the following option or it won't work.
+ *
+ */
 #define SDSUPPORT
 
-//
-// SD CARD: SPI SPEED
-//
-// Uncomment ONE of the following items to use a slower SPI transfer
-// speed. This is usually required if you're getting volume init errors.
-//
+/**
+ * SD CARD: SPI SPEED
+ *
+ * Enable one of the following items for a slower SPI transfer speed.
+ * This may be required to resolve "volume init" errors.
+ */
 //#define SPI_SPEED SPI_HALF_SPEED
 //#define SPI_SPEED SPI_QUARTER_SPEED
 //#define SPI_SPEED SPI_EIGHTH_SPEED
 
-//
-// SD CARD: ENABLE CRC
-//
-// Use CRC checks and retries on the SD communication.
-//
+/**
+ * SD CARD: ENABLE CRC
+ *
+ * Use CRC checks and retries on the SD communication.
+ */
 //#define SD_CHECK_AND_RETRY
 
 //
  */
 
 //
-// This option reverses the encoder direction everywhere
+// This option reverses the encoder direction everywhere.
 //
 //  Set this option if CLOCKWISE causes values to DECREASE
 //