Merge branch 'Development' into eeprom_in_gcode

Latest upstream commits

Documentation/LCDLanguageFont.md

   * nl    Dutch
   * ca    Catalan
   * eu    Basque-Euskera
+  * cn    Chinese
+  * jp    Japanese (Katakana)
 
-  and recently on [Thingiverse](http://www.thingiverse.com/) a new port to
-  * jp    [Japanese](http://www.thingiverse.com/thing:664397)
-
- appeared.
 
 ## The Problem
   All of this languages, except the English, normally use extended symbol sets, not contained in US-ASCII.
 
   You'll find all translatable strings in 'language_en.h'. Please don't translate any strings from 'language.h', this may break the serial protocol.
 
+  For information about fonts see: Marlin\fonts\README.fonts
+
+
 ## User Instructions
    Define your hardware and the wanted language in 'Configuration.h'.
    To find out what charset your hardware is, define language 'test' and compile. In the menu you will see two lines from the upper half of the charset.

Marlin/Configuration.h

 // @section lcd
 
 // Define your display language below. Replace (en) with your language code and uncomment.
-// en, pl, fr, de, es, ru, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, test
+// en, pl, fr, de, es, ru, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, cn, test
 // See also language.h
 #define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 

Marlin/Configuration_adv.h

 #define HOMING_BUMP_DIVISOR {2, 2, 4}  // Re-Bump Speed Divisor (Divides the Homing Feedrate)
 //#define QUICK_HOME  //if this is defined, if both x and y are to be homed, a diagonal move will be performed initially.
 
+// When G28 is called, this option will make Y home before X
+// #define HOME_Y_BEFORE_X
+
 // @section machine
 
 #define AXIS_RELATIVE_MODES {false, false, false, false}
 #define ENCODER_RATE_MULTIPLIER         // If defined, certain menu edit operations automatically multiply the steps when the encoder is moved quickly
 #define ENCODER_10X_STEPS_PER_SEC 75    // If the encoder steps per sec exceeds this value, multiply steps moved x10 to quickly advance the value
 #define ENCODER_100X_STEPS_PER_SEC 160  // If the encoder steps per sec exceeds this value, multiply steps moved x100 to really quickly advance the value
-//#define ENCODER_RATE_MULTIPLIER_DEBUG  // If defined, output the encoder steps per second value
 
 //#define CHDK 4        //Pin for triggering CHDK to take a picture see how to use it here http://captain-slow.dk/2014/03/09/3d-printing-timelapses/
 #define CHDK_DELAY 50 //How long in ms the pin should stay HIGH before going LOW again

Marlin/Marlin_main.cpp

     current_position[axis] = 0;
     sync_plan_position();
 
+    enable_endstops(false); // Disable endstops while moving away
+
     // Move away from the endstop by the axis HOME_BUMP_MM
     destination[axis] = -home_bump_mm(axis) * axis_home_dir;
     line_to_destination();
     st_synchronize();
 
+    enable_endstops(true); // Enable endstops for next homing move
+
     // Slow down the feedrate for the next move
     set_homing_bump_feedrate(axis);
 
     #ifdef DELTA
       // retrace by the amount specified in endstop_adj
       if (endstop_adj[axis] * axis_home_dir < 0) {
+        enable_endstops(false); // Disable endstops while moving away
         sync_plan_position();
         destination[axis] = endstop_adj[axis];
         line_to_destination();
         st_synchronize();
+        enable_endstops(true); // Enable endstops for next homing move
       }
     #endif
 
     // Set the axis position to its home position (plus home offsets)
     axis_is_at_home(axis);
+    sync_plan_position();
 
     destination[axis] = current_position[axis];
     feedrate = 0.0;
 
     #endif // QUICK_HOME
 
+    #ifdef HOME_Y_BEFORE_X
+      // Home Y
+      if (home_all_axis || homeY) HOMEAXIS(Y);
+    #endif
+
     // Home X
     if (home_all_axis || homeX) {
       #ifdef DUAL_X_CARRIAGE
       #endif
     }
 
-    // Home Y
-    if (home_all_axis || homeY) HOMEAXIS(Y);
+    #ifndef HOME_Y_BEFORE_X
+      // Home Y
+      if (home_all_axis || homeY) HOMEAXIS(Y);
+    #endif
 
     // Home Z last if homing towards the bed
     #if Z_HOME_DIR < 0

Marlin/configurator/config/Configuration.h

 // @section lcd
 
 // Define your display language below. Replace (en) with your language code and uncomment.
-// en, pl, fr, de, es, ru, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, test
+// en, pl, fr, de, es, ru, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, cn, test
 // See also language.h
 #define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 

Marlin/configurator/config/Configuration_adv.h

 #define HOMING_BUMP_DIVISOR {2, 2, 4}  // Re-Bump Speed Divisor (Divides the Homing Feedrate)
 //#define QUICK_HOME  //if this is defined, if both x and y are to be homed, a diagonal move will be performed initially.
 
+// When G28 is called, this option will make Y home before X
+// #define HOME_Y_BEFORE_X
+
 // @section machine
 
 #define AXIS_RELATIVE_MODES {false, false, false, false}
 #define ENCODER_RATE_MULTIPLIER         // If defined, certain menu edit operations automatically multiply the steps when the encoder is moved quickly
 #define ENCODER_10X_STEPS_PER_SEC 75    // If the encoder steps per sec exceeds this value, multiply steps moved x10 to quickly advance the value
 #define ENCODER_100X_STEPS_PER_SEC 160  // If the encoder steps per sec exceeds this value, multiply steps moved x100 to really quickly advance the value
-//#define ENCODER_RATE_MULTIPLIER_DEBUG  // If defined, output the encoder steps per second value
 
 //#define CHDK 4        //Pin for triggering CHDK to take a picture see how to use it here http://captain-slow.dk/2014/03/09/3d-printing-timelapses/
 #define CHDK_DELAY 50 //How long in ms the pin should stay HIGH before going LOW again

Marlin/dogm_font_data_ISO10646_CN.h

+/*
+  Fontname: ISO10646_CN
+  Copyright: A. Hardtung, public domain
+  Capital A Height: 7, '1' Height: 7
+  Calculated Max Values w=11 h=11 x= 2 y=10 dx=12 dy= 0 ascent=10 len=22
+  Font Bounding box     w=12 h=11 x= 0 y=-2
+  Calculated Min Values           x= 0 y=-1 dx= 0 dy= 0
+  Pure Font   ascent = 7 descent=-1
+  X Font      ascent = 7 descent=-1
+  Max Font    ascent =10 descent=-1
+*/
+#include <utility/u8g.h>
+const u8g_fntpgm_uint8_t ISO10646_CN[4105] U8G_SECTION(".progmem.ISO10646_CN") = {
+  0,12,11,0,254,7,1,146,3,33,32,255,255,10,255,7,
+  255,0,0,0,6,0,10,1,7,7,6,2,0,128,128,128,
+  128,128,0,128,3,2,2,6,1,5,160,160,5,7,7,6,
+  0,0,80,80,248,80,248,80,80,5,7,7,6,0,0,32,
+  120,160,112,40,240,32,5,7,7,6,0,0,192,200,16,32,
+  64,152,24,5,7,7,6,0,0,96,144,160,64,168,144,104,
+  2,3,3,6,1,4,192,64,128,3,7,7,6,1,0,32,
+  64,128,128,128,64,32,3,7,7,6,1,0,128,64,32,32,
+  32,64,128,5,5,5,6,0,1,32,168,112,168,32,5,5,
+  5,6,0,1,32,32,248,32,32,2,3,3,6,2,255,192,
+  64,128,5,1,1,6,0,3,248,2,2,2,6,2,0,192,
+  192,5,5,5,6,0,1,8,16,32,64,128,5,7,7,6,
+  0,0,112,136,152,168,200,136,112,3,7,7,6,1,0,64,
+  192,64,64,64,64,224,5,7,7,6,0,0,112,136,8,112,
+  128,128,248,5,7,7,6,0,0,248,16,32,16,8,8,240,
+  5,7,7,6,0,0,16,48,80,144,248,16,16,5,7,7,
+  6,0,0,248,128,240,8,8,136,112,5,7,7,6,0,0,
+  112,128,128,240,136,136,112,5,7,7,6,0,0,248,8,16,
+  32,32,32,32,5,7,7,6,0,0,112,136,136,112,136,136,
+  112,5,7,7,6,0,0,112,136,136,120,8,8,112,2,5,
+  5,6,2,0,192,192,0,192,192,2,6,6,6,2,255,192,
+  192,0,192,64,128,4,7,7,6,0,0,16,32,64,128,64,
+  32,16,5,3,3,6,0,2,248,0,248,4,7,7,6,0,
+  0,128,64,32,16,32,64,128,5,7,7,6,0,0,112,136,
+  8,16,32,0,32,5,7,7,6,0,0,112,136,8,104,168,
+  168,112,5,7,7,6,0,0,112,136,136,248,136,136,136,5,
+  7,7,6,0,0,240,136,136,240,136,136,240,5,7,7,6,
+  0,0,112,136,128,128,128,136,112,5,7,7,6,0,0,240,
+  136,136,136,136,136,240,5,7,7,6,0,0,248,128,128,240,
+  128,128,248,5,7,7,6,0,0,248,128,128,240,128,128,128,
+  5,7,7,6,0,0,112,136,128,184,136,136,112,5,7,7,
+  6,0,0,136,136,136,248,136,136,136,1,7,7,6,2,0,
+  128,128,128,128,128,128,128,5,7,7,6,0,0,56,16,16,
+  16,16,144,96,5,7,7,6,0,0,136,144,160,192,160,144,
+  136,5,7,7,6,0,0,128,128,128,128,128,128,248,5,7,
+  7,6,0,0,136,216,168,136,136,136,136,5,7,7,6,0,
+  0,136,136,200,168,152,136,136,5,7,7,6,0,0,112,136,
+  136,136,136,136,112,5,7,7,6,0,0,240,136,136,240,128,
+  128,128,5,7,7,6,0,0,112,136,136,136,168,144,104,5,
+  7,7,6,0,0,240,136,136,240,160,144,136,5,7,7,6,
+  0,0,120,128,128,112,8,8,240,5,7,7,6,0,0,248,
+  32,32,32,32,32,32,5,7,7,6,0,0,136,136,136,136,
+  136,136,112,5,7,7,6,0,0,136,136,136,136,136,80,32,
+  5,7,7,6,0,0,136,136,136,136,136,168,80,5,7,7,
+  6,0,0,136,136,80,32,80,136,136,5,7,7,6,0,0,
+  136,136,136,80,32,32,32,5,7,7,6,0,0,248,8,16,
+  32,64,128,248,3,7,7,6,0,0,224,128,128,128,128,128,
+  224,5,5,5,6,0,1,128,64,32,16,8,3,7,7,6,
+  0,0,224,32,32,32,32,32,224,5,3,3,6,0,4,32,
+  80,136,5,1,1,6,0,0,248,2,2,2,6,2,5,128,
+  64,5,5,5,6,0,0,112,8,120,136,120,5,7,7,6,
+  0,0,128,128,176,200,136,136,240,5,5,5,6,0,0,112,
+  128,128,136,112,5,7,7,6,0,0,8,8,104,152,136,136,
+  120,5,5,5,6,0,0,112,136,248,128,112,5,7,7,6,
+  0,0,48,72,224,64,64,64,64,5,6,6,6,0,255,112,
+  136,136,120,8,112,5,7,7,6,0,0,128,128,176,200,136,
+  136,136,1,7,7,6,2,0,128,0,128,128,128,128,128,3,
+  8,8,6,1,255,32,0,32,32,32,32,160,64,4,7,7,
+  6,1,0,128,128,144,160,192,160,144,3,7,7,6,1,0,
+  192,64,64,64,64,64,224,5,5,5,6,0,0,208,168,168,
+  168,168,5,5,5,6,0,0,176,200,136,136,136,5,5,5,
+  6,0,0,112,136,136,136,112,5,6,6,6,0,255,240,136,
+  136,240,128,128,5,6,6,6,0,255,120,136,136,120,8,8,
+  5,5,5,6,0,0,176,200,128,128,128,5,5,5,6,0,
+  0,112,128,112,8,240,4,7,7,6,0,0,64,64,224,64,
+  64,64,48,5,5,5,6,0,0,136,136,136,152,104,5,5,
+  5,6,0,0,136,136,136,80,32,5,5,5,6,0,0,136,
+  136,168,168,80,5,5,5,6,0,0,136,80,32,80,136,5,
+  6,6,6,0,255,136,136,136,120,8,112,5,5,5,6,0,
+  0,248,16,32,64,248,3,7,7,6,1,0,32,64,64,128,
+  64,64,32,1,7,7,6,2,0,128,128,128,128,128,128,128,
+  3,7,7,6,1,0,128,64,64,32,64,64,128,5,2,2,
+  6,0,3,104,144,0,0,0,6,0,10,0,0,0,12,0,
+  10,0,0,0,12,0,10,0,0,0,12,0,10,0,0,0,
+  12,0,10,0,0,0,12,0,10,0,0,0,12,0,10,0,
+  0,0,12,0,10,0,0,0,12,0,10,0,0,0,12,0,
+  10,0,0,0,12,0,10,0,0,0,12,0,10,0,0,0,
+  12,0,10,0,0,0,12,0,10,0,0,0,12,0,10,0,
+  0,0,12,0,10,0,0,0,12,0,10,0,0,0,12,0,
+  10,0,0,0,12,0,10,0,0,0,12,0,10,0,0,0,
+  12,0,10,0,0,0,12,0,10,0,0,0,12,0,10,0,
+  0,0,12,0,10,0,0,0,12,0,10,0,0,0,12,0,
+  10,0,0,0,12,0,10,0,0,0,12,0,10,0,0,0,
+  12,0,10,0,0,0,12,0,10,11,11,22,12,0,255,255,
+  224,2,0,2,0,4,0,13,0,20,128,36,64,196,32,4,
+  0,4,0,4,0,11,11,22,12,0,255,249,0,138,0,171,
+  224,172,64,170,64,170,64,170,64,170,128,33,0,82,128,140,
+  96,11,11,22,12,0,255,36,0,36,0,63,128,68,0,132,
+  0,4,0,255,224,10,0,17,0,32,128,192,96,11,11,22,
+  12,0,255,36,0,36,0,63,192,68,0,4,0,255,224,9,
+  0,9,0,17,32,33,32,64,224,11,11,22,12,0,255,32,
+  0,61,224,81,32,145,32,17,32,255,32,17,32,41,32,37,
+  224,69,32,128,0,11,11,22,12,0,255,32,128,127,192,8,
+  64,255,224,17,0,32,128,95,64,128,32,63,128,0,0,127,
+  192,11,11,22,12,0,255,34,64,71,224,148,128,228,128,47,
+  224,68,128,244,128,7,224,52,128,196,128,7,224,11,11,22,
+  12,0,255,4,128,143,224,73,0,25,0,47,192,9,0,9,
+  0,47,192,73,0,137,0,15,224,11,11,22,12,0,255,16,
+  0,63,128,81,0,14,0,49,128,192,96,63,128,36,128,63,
+  128,36,128,63,128,11,11,22,12,0,255,34,128,250,64,7,
+  224,250,128,138,128,138,128,250,128,34,128,178,128,170,160,100,
+  224,11,11,22,12,0,255,34,32,71,64,146,128,239,224,34,
+  0,71,192,236,64,7,192,52,64,199,192,4,64,11,11,22,
+  12,0,255,8,0,15,192,8,0,8,0,255,224,8,0,14,
+  0,9,128,8,64,8,0,8,0,10,11,22,12,0,255,255,
+  128,0,128,0,128,128,128,128,128,255,128,128,0,128,0,128,
+  64,128,64,127,192,11,11,22,12,0,255,71,192,65,0,239,
+  224,65,0,69,0,105,96,201,32,77,96,73,32,79,224,200,
+  32,11,11,22,12,0,255,8,0,4,0,4,0,10,0,10,
+  0,10,0,17,0,17,0,32,128,64,64,128,32,11,11,22,
+  12,0,255,34,64,34,0,247,224,34,0,35,224,53,32,229,
+  32,37,64,40,128,41,64,114,32,11,10,20,12,0,0,68,
+  64,68,64,68,64,127,192,4,0,4,0,132,32,132,32,132,
+  32,255,224,11,11,22,12,0,255,4,0,0,0,127,192,4,
+  0,4,0,4,0,127,192,4,0,4,0,4,0,255,224,11,
+  11,22,12,0,255,255,224,17,0,1,192,254,0,72,128,37,
+  0,4,0,255,224,21,0,36,128,196,96,11,11,22,12,0,
+  255,17,0,127,192,68,64,127,192,68,64,127,192,4,0,255,
+  224,4,0,4,0,4,0,9,11,22,12,0,255,16,0,255,
+  128,128,128,128,128,255,128,128,128,128,128,255,128,128,128,128,
+  128,255,128,11,11,22,12,0,255,113,0,1,0,3,224,249,
+  32,33,32,65,32,81,32,137,32,250,32,2,32,4,192,11,
+  11,22,12,0,255,127,192,17,0,17,0,17,0,17,0,255,
+  224,17,0,17,0,33,0,33,0,65,0,11,11,22,12,0,
+  255,33,0,34,0,244,64,87,224,80,32,87,192,148,64,84,
+  64,36,64,87,192,148,64,11,11,22,12,0,255,17,0,10,
+  0,127,192,4,0,4,0,255,224,4,0,10,0,17,0,32,
+  128,192,96,10,11,22,12,0,255,95,192,0,64,132,64,132,
+  64,191,64,132,64,140,64,148,64,164,64,140,64,129,192,11,
+  11,22,12,0,255,36,0,39,192,36,0,36,0,255,224,0,
+  0,20,64,36,128,71,0,12,0,112,0,11,11,22,12,0,
+  255,36,128,4,128,15,192,228,128,36,128,63,224,36,128,36,
+  128,40,128,80,0,143,224,11,11,22,12,0,255,8,0,8,
+  0,255,128,136,128,136,128,255,128,136,128,136,128,255,160,136,
+  32,7,224,11,11,22,12,0,255,39,128,36,128,244,128,36,
+  128,116,128,108,128,164,128,36,128,36,160,40,160,48,96,10,
+  11,22,12,0,255,255,192,128,64,128,64,158,64,146,64,146,
+  64,158,64,128,64,128,64,255,192,128,64,11,11,22,12,0,
+  255,127,192,68,0,95,192,80,64,95,192,80,64,95,192,66,
+  0,74,128,82,64,166,32,11,11,22,12,0,255,4,0,7,
+  224,4,0,127,192,64,64,64,64,64,64,127,192,0,0,82,
+  64,137,32,11,11,22,12,0,255,71,128,36,128,4,128,4,
+  128,232,96,32,0,47,192,36,64,34,128,49,0,38,192,11,
+  11,22,12,0,255,127,192,74,64,127,192,4,0,255,224,4,
+  0,63,128,32,128,36,128,36,128,255,224,11,11,22,12,0,
+  255,34,0,79,224,72,32,79,224,200,0,79,224,74,160,90,
+  160,111,224,74,160,72,96,11,11,22,12,0,255,243,192,36,
+  64,42,128,241,0,34,128,101,224,114,32,165,64,32,128,35,
+  0,44,0,11,11,22,12,0,255,4,0,255,224,128,32,0,
+  0,255,224,4,0,36,0,39,192,36,0,84,0,143,224,11,
+  11,22,12,0,255,115,224,16,128,81,0,35,224,250,32,42,
+  160,34,160,34,160,32,128,33,64,98,32,11,11,22,12,0,
+  255,34,0,247,128,34,128,54,128,226,160,37,160,36,96,104,
+  32,0,0,82,64,137,32,11,11,22,12,0,255,115,192,66,
+  0,66,0,123,224,74,64,74,64,122,64,74,64,66,64,68,
+  64,136,64,11,11,22,12,0,255,8,0,255,224,8,0,31,
+  192,48,64,95,192,144,64,31,192,16,64,16,64,16,192,11,
+  11,22,12,0,255,2,0,127,224,66,0,66,0,95,192,66,
+  0,71,0,74,128,82,64,98,32,130,0,11,11,22,12,0,
+  255,243,192,150,64,145,128,166,96,161,0,151,192,145,0,149,
+  0,231,224,129,0,129,0,11,11,22,12,0,255,15,128,136,
+  128,79,128,8,128,143,128,64,0,31,192,53,64,85,64,149,
+  64,63,224,11,11,22,12,0,255,39,224,32,128,248,128,32,
+  128,32,128,56,128,224,128,32,128,32,128,32,128,97,128,11,
+  11,22,12,0,255,31,224,145,0,87,192,20,64,23,192,148,
+  64,87,192,17,0,85,64,153,32,35,0,11,11,22,12,0,
+  255,32,128,39,224,242,64,33,128,34,64,52,32,226,64,34,
+  64,34,64,34,64,100,64,11,11,22,12,0,255,65,0,65,
+  0,79,224,233,32,73,32,73,32,111,224,201,32,73,32,73,
+  32,207,224,11,11,22,12,0,255,33,0,241,0,79,224,169,
+  32,249,32,47,224,57,32,233,32,41,32,47,224,40,32,11,
+  11,22,12,0,255,143,224,73,32,9,32,203,160,73,32,79,
+  224,72,32,75,160,74,160,107,160,80,224,11,11,22,12,0,
+  255,127,192,4,0,68,64,36,64,36,128,4,0,255,224,4,
+  0,4,0,4,0,4,0,11,11,22,12,0,255,130,0,66,
+  0,31,224,194,0,95,192,82,64,95,192,71,0,74,128,82,
+  64,191,224,11,11,22,12,0,255,4,0,127,224,72,128,127,
+  224,72,128,79,128,64,0,95,192,72,64,71,128,152,96,11,
+  11,22,12,0,255,1,0,239,224,161,0,164,64,175,224,164,
+  64,175,224,169,32,233,32,2,128,12,96,11,11,22,12,0,
+  255,20,192,246,160,188,96,167,128,168,128,191,224,169,32,239,
+  224,9,32,15,224,9,32,11,11,22,12,0,255,127,128,64,
+  128,66,128,98,128,84,128,72,128,72,128,84,160,98,160,64,
+  96,128,32,11,11,22,12,0,255,4,0,127,224,64,32,127,
+  224,64,0,125,224,84,32,76,160,84,96,100,160,141,96,11,
+  11,22,12,0,255,130,0,95,224,4,0,8,64,159,224,64,
+  32,10,128,10,128,74,160,146,160,34,96,11,11,22,12,0,
+  255,65,0,79,224,232,32,66,128,68,64,104,32,199,192,65,
+  0,65,0,65,0,207,224,11,11,22,12,0,255,80,32,125,
+  32,145,32,255,32,17,32,125,32,85,32,85,32,84,32,92,
+  32,16,224,11,11,22,12,0,255,63,128,32,128,63,128,32,
+  128,255,224,72,0,123,192,73,64,121,64,72,128,251,96,11,
+  11,22,12,0,255,4,0,4,0,4,0,36,128,36,64,68,
+  64,68,32,132,32,4,0,4,0,28,0,11,11,22,12,0,
+  255,4,0,4,0,4,0,255,224,4,0,10,0,10,0,17,
+  0,17,0,32,128,192,96,9,10,20,10,0,0,136,128,73,
+  0,8,0,255,128,0,128,0,128,127,128,0,128,0,128,255,
+  128,11,11,22,12,0,255,33,0,18,0,255,224,0,0,120,
+  128,74,128,122,128,74,128,122,128,72,128,89,128,11,11,22,
+  12,0,255,39,192,0,0,0,0,239,224,33,0,34,0,36,
+  64,47,224,32,32,80,0,143,224,11,11,22,12,0,255,32,
+  128,39,0,249,0,33,192,119,0,33,0,249,224,39,0,113,
+  32,169,32,32,224,11,11,22,12,0,255,16,64,16,64,253,
+  224,16,64,56,192,53,64,82,64,148,64,16,64,16,64,16,
+  192,11,11,22,12,0,255,0,64,248,64,11,224,8,64,136,
+  64,82,64,81,64,33,64,80,64,72,64,137,192,10,11,22,
+  12,0,255,132,0,132,64,132,128,245,0,134,0,132,0,132,
+  0,148,0,164,64,196,64,131,192,11,11,22,12,0,255,17,
+  32,125,0,17,0,255,224,41,0,253,64,73,64,124,128,8,
+  160,253,96,10,32,11,11,22,12,0,255,23,192,36,64,36,
+  64,103,192,161,0,47,224,33,0,35,128,37,64,41,32,33,
+  0,11,11,22,12,0,255,8,0,255,224,16,0,39,192,32,
+  128,97,0,175,224,33,0,33,0,33,0,35,0,11,11,22,
+  12,0,255,36,0,47,224,180,0,164,128,164,160,170,192,42,
+  128,40,128,41,64,50,64,36,32,11,11,22,12,0,255,127,
+  224,128,0,63,192,32,64,63,192,16,0,31,192,16,64,40,
+  128,71,0,56,224,11,11,22,12,0,255,127,224,64,0,64,
+  0,64,0,64,0,64,0,64,0,64,0,64,0,64,0,128,
+  0,11,11,22,12,0,255,255,224,4,0,127,192,68,64,127,
+  192,68,64,127,192,68,0,36,0,24,0,231,224,11,11,22,
+  12,0,255,17,224,253,0,69,0,41,224,253,64,17,64,125,
+  64,17,64,85,64,146,64,52,64,11,11,22,12,0,255,33,
+  0,95,224,64,0,207,192,64,0,79,192,64,0,79,192,72,
+  64,79,192,72,64,11,11,22,12,0,255,4,0,127,192,64,
+  64,127,192,64,64,127,192,64,64,127,192,4,64,82,32,191,
+  160,11,11,22,12,0,255,127,192,68,64,127,192,68,64,127,
+  192,4,0,27,0,224,224,17,0,17,0,97,0,11,11,22,
+  12,0,255,255,224,4,0,8,0,127,224,73,32,79,32,73,
+  32,79,32,73,32,73,32,127,224,11,11,22,12,0,255,253,
+  224,86,64,121,64,56,128,85,64,146,32,255,224,4,0,39,
+  192,36,0,255,224,11,11,22,12,0,255,251,128,82,0,123,
+  224,18,64,250,64,20,64,63,128,32,128,63,128,32,128,63,
+  128,11,11,22,12,0,255,31,224,32,0,39,192,100,64,167,
+  192,32,0,47,224,40,32,39,192,33,0,35,0,11,11,22,
+  12,0,255,243,224,130,32,130,32,250,32,130,32,130,32,138,
+  32,178,32,194,224,2,0,2,0,11,11,22,12,0,255,36,
+  128,70,160,149,192,228,128,39,224,68,128,245,192,6,160,52,
+  128,196,128,7,224,11,11,22,12,0,255,39,192,65,0,135,
+  224,224,32,34,128,69,128,242,128,15,224,48,128,193,64,2,
+  32,11,11,22,12,0,255,2,0,2,0,34,0,35,192,34,
+  0,34,0,34,0,34,0,34,0,34,0,255,224,9,11,22,
+  12,0,255,8,0,8,0,255,128,136,128,136,128,136,128,255,
+  128,136,128,136,128,136,128,255,128,11,11,22,12,0,255,33,
+  0,83,160,65,0,247,224,81,0,83,192,86,64,83,192,90,
+  64,83,192,66,64,11,11,22,12,0,255,127,192,4,0,4,
+  0,4,0,255,224,10,0,10,0,18,0,34,32,66,32,129,
+  224,11,11,22,12,0,255,17,0,33,0,47,224,97,0,163,
+  128,35,128,37,64,37,64,41,32,33,0,33,0,11,11,22,
+  12,0,255,247,224,148,32,244,32,151,224,148,128,244,128,151,
+  224,148,128,244,160,150,96,4,32,11,11,22,12,0,255,123,
+  224,148,128,4,0,127,192,4,0,255,224,1,0,255,224,33,
+  0,17,0,7,0,11,11,22,12,0,255,33,0,71,192,145,
+  0,47,224,96,128,175,224,32,128,36,128,34,128,32,128,35,
+  128,11,11,22,12,0,255,39,192,36,64,247,192,46,224,42,
+  160,62,224,225,0,47,224,35,128,37,64,105,32,11,11,22,
+  12,0,255,20,0,39,224,42,0,98,0,163,192,34,0,34,
+  0,35,224,34,0,34,0,34,0};

Marlin/dogm_lcd_implementation.h

   #elif defined( DISPLAY_CHARSET_ISO10646_KANA )
     #include "dogm_font_data_ISO10646_Kana.h"
     #define FONT_MENU_NAME ISO10646_Kana_5x7
+  #elif defined( DISPLAY_CHARSET_ISO10646_CN )
+    #include "dogm_font_data_ISO10646_CN.h"
+    #define FONT_MENU_NAME ISO10646_CN
+    #define TALL_FONT_CORRECTION 1
   #else // fall-back
     #include "dogm_font_data_ISO10646_1.h"
     #define FONT_MENU_NAME ISO10646_1_5x7
   #define LCD_WIDTH_EDIT       22
 #endif
 
+#ifndef TALL_FONT_CORRECTION
+  #define TALL_FONT_CORRECTION 0
+#endif
+
 #define START_ROW              0
 
 // LCD selection
   U8GLIB_DOGM128 u8g(DOGLCD_CS, DOGLCD_A0);  // HW-SPI Com: CS, A0
 #endif
 
+#ifndef LCD_PIXEL_WIDTH
+  #define LCD_PIXEL_WIDTH 128
+#endif
+#ifndef LCD_PIXEL_HEIGHT
+  #define LCD_PIXEL_HEIGHT 64
+#endif
+
 #include "utf_mapper.h"
 
 int lcd_contrast;
 
 static bool show_splashscreen = true;
 
+/* Warning: This function is called from interrupt context */
 static void lcd_implementation_init() {
 
   #ifdef LCD_PIN_BL // Enable LCD backlight
  
   #ifdef SDSUPPORT
     // SD Card Symbol
-    u8g.drawBox(42,42,8,7);
-    u8g.drawBox(50,44,2,5);
-    u8g.drawFrame(42,49,10,4);
-    u8g.drawPixel(50,43);
+    u8g.drawBox(42, 42 - TALL_FONT_CORRECTION, 8, 7);
+    u8g.drawBox(50, 44 - TALL_FONT_CORRECTION, 2, 5);
+    u8g.drawFrame(42, 49 - TALL_FONT_CORRECTION, 10, 4);
+    u8g.drawPixel(50, 43 - TALL_FONT_CORRECTION);
+
 
     // Progress bar frame
-    u8g.drawFrame(54,49,73,4);
+    u8g.drawFrame(54, 49, 73, 4 - TALL_FONT_CORRECTION);
 
     // SD Card Progress bar and clock
     lcd_setFont(FONT_STATUSMENU);
  
     if (IS_SD_PRINTING) {
       // Progress bar solid part
-      u8g.drawBox(55, 50, (unsigned int)(71.f * card.percentDone() / 100.f), 2);
+      u8g.drawBox(55, 50, (unsigned int)(71.f * card.percentDone() / 100.f), 2 - TALL_FONT_CORRECTION);
     }
 
     u8g.setPrintPos(80,48);
   lcd_setFont(FONT_STATUSMENU);
 
   #ifdef USE_SMALL_INFOFONT
-    u8g.drawBox(0,30,128,10);
+    u8g.drawBox(0,30,LCD_PIXEL_WIDTH,10);
   #else
-    u8g.drawBox(0,30,128,9);
+    u8g.drawBox(0,30,LCD_PIXEL_WIDTH,9);
   #endif
   u8g.setColorIndex(0); // white on black
   u8g.setPrintPos(2,XYZ_BASELINE);
 static void lcd_implementation_mark_as_selected(uint8_t row, bool isSelected) {
   if (isSelected) {
     u8g.setColorIndex(1);  // black on white
-    u8g.drawBox(0, row * DOG_CHAR_HEIGHT + 3, 128, DOG_CHAR_HEIGHT);
+    u8g.drawBox(0, row * DOG_CHAR_HEIGHT + 3 - TALL_FONT_CORRECTION, LCD_PIXEL_WIDTH, DOG_CHAR_HEIGHT);
     u8g.setColorIndex(0);  // following text must be white on black
   }
   else {
     pstr++;
   }
   while (n--) lcd_print(' ');
+    u8g.setPrintPos(LCD_PIXEL_WIDTH - DOG_CHAR_WIDTH, (row + 1) * DOG_CHAR_HEIGHT);
   lcd_print(post_char);
   lcd_print(' ');
 }
 
 static void _drawmenu_setting_edit_generic(bool isSelected, uint8_t row, const char* pstr, const char* data, bool pgm) {
   char c;
-  uint8_t n = LCD_WIDTH - 2 - (pgm ? lcd_strlen_P(data) : (lcd_strlen((char*)data)));
+  uint8_t vallen = (pgm ? lcd_strlen_P(data) : (lcd_strlen((char*)data)));
+  uint8_t n = LCD_WIDTH - 2 - vallen;
 
   lcd_implementation_mark_as_selected(row, isSelected);
 
   }
   lcd_print(':');
   while (n--) lcd_print(' ');
+  u8g.setPrintPos(LCD_PIXEL_WIDTH - DOG_CHAR_WIDTH * vallen, (row + 1) * DOG_CHAR_HEIGHT);
   if (pgm) { lcd_printPGM(data); } else { lcd_print((char *)data); }
 }
 

Marlin/example_configurations/Felix/Configuration.h

 //==============================LCD and SD support=============================
 
 // Define your display language below. Replace (en) with your language code and uncomment.
-// en, pl, fr, de, es, ru, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, test
+// en, pl, fr, de, es, ru, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, cn, test
 // See also language.h
 //#define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 

Marlin/example_configurations/Felix/Configuration_DUAL.h

 //==============================LCD and SD support=============================
 
 // Define your display language below. Replace (en) with your language code and uncomment.
-// en, pl, fr, de, es, ru, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, test
+// en, pl, fr, de, es, ru, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, cn, test
 // See also language.h
 //#define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 

Marlin/example_configurations/Felix/Configuration_adv.h

 #define HOMING_BUMP_DIVISOR {2, 2, 4}  // Re-Bump Speed Divisor (Divides the Homing Feedrate)
 //#define QUICK_HOME  //if this is defined, if both x and y are to be homed, a diagonal move will be performed initially.
 
+// When G28 is called, this option will make Y home before X
+// #define HOME_Y_BEFORE_X
+
 // @section machine
 
 #define AXIS_RELATIVE_MODES {false, false, false, false}
 #define ENCODER_RATE_MULTIPLIER         // If defined, certain menu edit operations automatically multiply the steps when the encoder is moved quickly
 #define ENCODER_10X_STEPS_PER_SEC 75    // If the encoder steps per sec exceeds this value, multiply steps moved x10 to quickly advance the value
 #define ENCODER_100X_STEPS_PER_SEC 160  // If the encoder steps per sec exceeds this value, multiply steps moved x100 to really quickly advance the value
-//#define ENCODER_RATE_MULTIPLIER_DEBUG  // If defined, output the encoder steps per second value
 
 //#define CHDK 4        //Pin for triggering CHDK to take a picture see how to use it here http://captain-slow.dk/2014/03/09/3d-printing-timelapses/
 #define CHDK_DELAY 50 //How long in ms the pin should stay HIGH before going LOW again

Marlin/example_configurations/Hephestos/Configuration.h

 //==============================LCD and SD support=============================
 
 // Define your display language below. Replace (en) with your language code and uncomment.
-// en, pl, fr, de, es, ru, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, test
+// en, pl, fr, de, es, ru, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, cn, test
 // See also language.h
 //#define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 

Marlin/example_configurations/Hephestos/Configuration_adv.h

 #define HOMING_BUMP_DIVISOR {2, 2, 4}  // Re-Bump Speed Divisor (Divides the Homing Feedrate)
 //#define QUICK_HOME  //if this is defined, if both x and y are to be homed, a diagonal move will be performed initially.
 
+// When G28 is called, this option will make Y home before X
+// #define HOME_Y_BEFORE_X
+
 // @section machine
 
 #define AXIS_RELATIVE_MODES {false, false, false, false}
 #define ENCODER_RATE_MULTIPLIER         // If defined, certain menu edit operations automatically multiply the steps when the encoder is moved quickly
 #define ENCODER_10X_STEPS_PER_SEC 75    // If the encoder steps per sec exceeds this value, multiply steps moved x10 to quickly advance the value
 #define ENCODER_100X_STEPS_PER_SEC 160  // If the encoder steps per sec exceeds this value, multiply steps moved x100 to really quickly advance the value
-//#define ENCODER_RATE_MULTIPLIER_DEBUG  // If defined, output the encoder steps per second value
 
 //#define CHDK 4        //Pin for triggering CHDK to take a picture see how to use it here http://captain-slow.dk/2014/03/09/3d-printing-timelapses/
 #define CHDK_DELAY 50 //How long in ms the pin should stay HIGH before going LOW again

Marlin/example_configurations/K8200/Configuration.h

 // @section lcd
 
 // Define your display language below. Replace (en) with your language code and uncomment.
-// en, pl, fr, de, es, ru, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, test
+// en, pl, fr, de, es, ru, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, cn, test
 // See also language.h
 #define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 

Marlin/example_configurations/K8200/Configuration_adv.h

 #define HOMING_BUMP_DIVISOR {2, 2, 4}  // Re-Bump Speed Divisor (Divides the Homing Feedrate)
 //#define QUICK_HOME  //if this is defined, if both x and y are to be homed, a diagonal move will be performed initially.
 
+// When G28 is called, this option will make Y home before X
+// #define HOME_Y_BEFORE_X
+
 // @section machine
 
 #define AXIS_RELATIVE_MODES {false, false, false, false}
 #define ENCODER_RATE_MULTIPLIER         // If defined, certain menu edit operations automatically multiply the steps when the encoder is moved quickly
 #define ENCODER_10X_STEPS_PER_SEC 75    // If the encoder steps per sec exceeds this value, multiply steps moved x10 to quickly advance the value
 #define ENCODER_100X_STEPS_PER_SEC 160  // If the encoder steps per sec exceeds this value, multiply steps moved x100 to really quickly advance the value
-//#define ENCODER_RATE_MULTIPLIER_DEBUG  // If defined, output the encoder steps per second value
 
 //#define CHDK 4        //Pin for triggering CHDK to take a picture see how to use it here http://captain-slow.dk/2014/03/09/3d-printing-timelapses/
 #define CHDK_DELAY 50 //How long in ms the pin should stay HIGH before going LOW again

Marlin/example_configurations/SCARA/Configuration.h

 //==============================LCD and SD support=============================
 
 // Define your display language below. Replace (en) with your language code and uncomment.
-// en, pl, fr, de, es, ru, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, test
+// en, pl, fr, de, es, ru, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, cn, test
 // See also language.h
 //#define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 

Marlin/example_configurations/SCARA/Configuration_adv.h

 #define HOMING_BUMP_DIVISOR {2, 2, 4}  // Re-Bump Speed Divisor (Divides the Homing Feedrate)
 //#define QUICK_HOME  //if this is defined, if both x and y are to be homed, a diagonal move will be performed initially.
 
+// When G28 is called, this option will make Y home before X
+// #define HOME_Y_BEFORE_X
+
 // @section machine
 
 #define AXIS_RELATIVE_MODES {false, false, false, false}
 #define ENCODER_RATE_MULTIPLIER         // If defined, certain menu edit operations automatically multiply the steps when the encoder is moved quickly
 #define ENCODER_10X_STEPS_PER_SEC 75    // If the encoder steps per sec exceeds this value, multiply steps moved x10 to quickly advance the value
 #define ENCODER_100X_STEPS_PER_SEC 160  // If the encoder steps per sec exceeds this value, multiply steps moved x100 to really quickly advance the value
-//#define ENCODER_RATE_MULTIPLIER_DEBUG  // If defined, output the encoder steps per second value
 
 //#define CHDK 4        //Pin for triggering CHDK to take a picture see how to use it here http://captain-slow.dk/2014/03/09/3d-printing-timelapses/
 #define CHDK_DELAY 50 //How long in ms the pin should stay HIGH before going LOW again

Marlin/example_configurations/WITBOX/Configuration.h

 //==============================LCD and SD support=============================
 
 // Define your display language below. Replace (en) with your language code and uncomment.
-// en, pl, fr, de, es, ru, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, test
+// en, pl, fr, de, es, ru, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, cn, test
 // See also language.h
 //#define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 

Marlin/example_configurations/WITBOX/Configuration_adv.h

 #define HOMING_BUMP_DIVISOR {2, 2, 4}  // Re-Bump Speed Divisor (Divides the Homing Feedrate)
 //#define QUICK_HOME  //if this is defined, if both x and y are to be homed, a diagonal move will be performed initially.
 
+// When G28 is called, this option will make Y home before X
+// #define HOME_Y_BEFORE_X
+
 // @section machine
 
 #define AXIS_RELATIVE_MODES {false, false, false, false}
 #define ENCODER_RATE_MULTIPLIER         // If defined, certain menu edit operations automatically multiply the steps when the encoder is moved quickly
 #define ENCODER_10X_STEPS_PER_SEC 75    // If the encoder steps per sec exceeds this value, multiply steps moved x10 to quickly advance the value
 #define ENCODER_100X_STEPS_PER_SEC 160  // If the encoder steps per sec exceeds this value, multiply steps moved x100 to really quickly advance the value
-//#define ENCODER_RATE_MULTIPLIER_DEBUG  // If defined, output the encoder steps per second value
 
 //#define CHDK 4        //Pin for triggering CHDK to take a picture see how to use it here http://captain-slow.dk/2014/03/09/3d-printing-timelapses/
 #define CHDK_DELAY 50 //How long in ms the pin should stay HIGH before going LOW again

Marlin/example_configurations/delta/generic/Configuration.h

 //==============================LCD and SD support=============================
 
 // Define your display language below. Replace (en) with your language code and uncomment.
-// en, pl, fr, de, es, ru, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, test
+// en, pl, fr, de, es, ru, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, cn, test
 // See also language.h
 #define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 

Marlin/example_configurations/delta/generic/Configuration_adv.h

 #define HOMING_BUMP_DIVISOR {10, 10, 20}  // Re-Bump Speed Divisor (Divides the Homing Feedrate)
 //#define QUICK_HOME  //if this is defined, if both x and y are to be homed, a diagonal move will be performed initially.
 
+// When G28 is called, this option will make Y home before X
+// #define HOME_Y_BEFORE_X
+
 // @section machine
 
 #define AXIS_RELATIVE_MODES {false, false, false, false}
 #define ENCODER_RATE_MULTIPLIER         // If defined, certain menu edit operations automatically multiply the steps when the encoder is moved quickly
 #define ENCODER_10X_STEPS_PER_SEC 75    // If the encoder steps per sec exceeds this value, multiply steps moved x10 to quickly advance the value
 #define ENCODER_100X_STEPS_PER_SEC 160  // If the encoder steps per sec exceeds this value, multiply steps moved x100 to really quickly advance the value
-//#define ENCODER_RATE_MULTIPLIER_DEBUG  // If defined, output the encoder steps per second value
 
 //#define CHDK 4        //Pin for triggering CHDK to take a picture see how to use it here http://captain-slow.dk/2014/03/09/3d-printing-timelapses/
 #define CHDK_DELAY 50 //How long in ms the pin should stay HIGH before going LOW again

Marlin/example_configurations/delta/kossel_mini/Configuration.h

 //==============================LCD and SD support=============================
 
 // Define your display language below. Replace (en) with your language code and uncomment.
-// en, pl, fr, de, es, ru, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, test
+// en, pl, fr, de, es, ru, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, cn, test
 // See also language.h
 #define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 

Marlin/example_configurations/delta/kossel_mini/Configuration_adv.h

 #define HOMING_BUMP_DIVISOR {10, 10, 20}  // Re-Bump Speed Divisor (Divides the Homing Feedrate)
 //#define QUICK_HOME  //if this is defined, if both x and y are to be homed, a diagonal move will be performed initially.
 
+// When G28 is called, this option will make Y home before X
+// #define HOME_Y_BEFORE_X
+
 // @section machine
 
 #define AXIS_RELATIVE_MODES {false, false, false, false}
 #define ENCODER_RATE_MULTIPLIER         // If defined, certain menu edit operations automatically multiply the steps when the encoder is moved quickly
 #define ENCODER_10X_STEPS_PER_SEC 75    // If the encoder steps per sec exceeds this value, multiply steps moved x10 to quickly advance the value
 #define ENCODER_100X_STEPS_PER_SEC 160  // If the encoder steps per sec exceeds this value, multiply steps moved x100 to really quickly advance the value
-//#define ENCODER_RATE_MULTIPLIER_DEBUG  // If defined, output the encoder steps per second value
 
 //#define CHDK 4        //Pin for triggering CHDK to take a picture see how to use it here http://captain-slow.dk/2014/03/09/3d-printing-timelapses/
 #define CHDK_DELAY 50 //How long in ms the pin should stay HIGH before going LOW again

Marlin/example_configurations/makibox/Configuration.h

 //==============================LCD and SD support=============================
 
 // Define your display language below. Replace (en) with your language code and uncomment.
-// en, pl, fr, de, es, ru, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, test
+// en, pl, fr, de, es, ru, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, cn, test
 // See also language.h
 //#define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 

Marlin/example_configurations/makibox/Configuration_adv.h

 #define HOMING_BUMP_DIVISOR {2, 2, 4}  // Re-Bump Speed Divisor (Divides the Homing Feedrate)
 //#define QUICK_HOME  //if this is defined, if both x and y are to be homed, a diagonal move will be performed initially.
 
+// When G28 is called, this option will make Y home before X
+// #define HOME_Y_BEFORE_X
+
 // @section machine
 
 #define AXIS_RELATIVE_MODES {false, false, false, false}
 #define ENCODER_RATE_MULTIPLIER         // If defined, certain menu edit operations automatically multiply the steps when the encoder is moved quickly
 #define ENCODER_10X_STEPS_PER_SEC 75    // If the encoder steps per sec exceeds this value, multiply steps moved x10 to quickly advance the value
 #define ENCODER_100X_STEPS_PER_SEC 160  // If the encoder steps per sec exceeds this value, multiply steps moved x100 to really quickly advance the value
-//#define ENCODER_RATE_MULTIPLIER_DEBUG  // If defined, output the encoder steps per second value
 
 //#define CHDK 4        //Pin for triggering CHDK to take a picture see how to use it here http://captain-slow.dk/2014/03/09/3d-printing-timelapses/
 #define CHDK_DELAY 50 //How long in ms the pin should stay HIGH before going LOW again

Marlin/example_configurations/tvrrug/Round2/Configuration.h

 //==============================LCD and SD support=============================
 
 // Define your display language below. Replace (en) with your language code and uncomment.
-// en, pl, fr, de, es, ru, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, test
+// en, pl, fr, de, es, ru, it, pt, pt-br, fi, an, nl, ca, eu, kana, kana_utf8, cn, test
 // See also language.h
 //#define LANGUAGE_INCLUDE GENERATE_LANGUAGE_INCLUDE(en)
 

Marlin/example_configurations/tvrrug/Round2/Configuration_adv.h

 #define HOMING_BUMP_DIVISOR {2, 2, 4}  // Re-Bump Speed Divisor (Divides the Homing Feedrate)
 //#define QUICK_HOME  //if this is defined, if both x and y are to be homed, a diagonal move will be performed initially.
 
+// When G28 is called, this option will make Y home before X
+// #define HOME_Y_BEFORE_X
+
 // @section machine
 
 #define AXIS_RELATIVE_MODES {false, false, false, false}
 #define ENCODER_RATE_MULTIPLIER         // If defined, certain menu edit operations automatically multiply the steps when the encoder is moved quickly
 #define ENCODER_10X_STEPS_PER_SEC 75    // If the encoder steps per sec exceeds this value, multiply steps moved x10 to quickly advance the value
 #define ENCODER_100X_STEPS_PER_SEC 160  // If the encoder steps per sec exceeds this value, multiply steps moved x100 to really quickly advance the value
-//#define ENCODER_RATE_MULTIPLIER_DEBUG  // If defined, output the encoder steps per second value
 
 //#define CHDK 4        //Pin for triggering CHDK to take a picture see how to use it here http://captain-slow.dk/2014/03/09/3d-printing-timelapses/
 #define CHDK_DELAY 50 //How long in ms the pin should stay HIGH before going LOW again

Marlin/fonts/README.fonts

 The .h files must be edited to replace '#include "u8g.h"' with '#include <utility/u8g.h>', replace 'U8G_FONT_SECTION' with 'U8G_SECTION', insert '.progmem.' right behind the first '"' and moved to the main directory.
 
 How to integrate a new font:
-Currently we are limited to 256 symbols per font. We use a menu system with 5 lines, on a display with 64 pixel height. That means we have 12 pixel for a line. To have some space in between the lines we can't use more then 10 pixel height for the symbols.
-We use fixed width fonts. To fit 22 Symbols on the 128 pixel wide screen, the symbols can't be wider than 5 pixel. Maybe you can work with half symbols - two places in the charset will than build one wide symbol.
+Currently we are limited to 256 symbols per font. We use a menu system with 5 lines, on a display with 64 pixel height. That means we have 12 pixel for a line. To have some space in between the lines we can't use more then 10 pixel height for the symbols. For up to 11 pixel set TALL_FONT_CORRECTION 1 when loading the font.
+To fit 22 Symbols on the 128 pixel wide screen, the symbols can't be wider than 5 pixel, for the first 128 symbols.
+For the second half of the font we now support up to 11x11 pixel. 
 
  * Get 'Fony.exe'
  * Copy one of the existing *.fon files and work with this.

Marlin/fonts/make_fonts.bat

 .\bdf2u8g.exe -b 32 -e 255 ISO10646-1.bdf ISO10646_1_5x7 dogm_font_data_ISO10646_1.h
 .\bdf2u8g.exe -b 32 -e 255 ISO10646_5_Cyrillic.bdf ISO10646_5_Cyrillic_5x7 dogm_font_data_ISO10646_5_Cyrillic.h
 .\bdf2u8g.exe -b 32 -e 255 ISO10646_Kana.bdf ISO10646_Kana_5x7 dogm_font_data_ISO10646_Kana.h
+.\bdf2u8g.exe -b 32 -e 255 ISO10646_CN.bdf ISO10646_CN dogm_font_data_ISO10646_CN.h

Marlin/language.h

 // eu       Basque-Euskera
 // kana     Japanese
 // kana_utf Japanese
+// cn       Chinese
 
 #ifndef LANGUAGE_INCLUDE
   // pick your language from the list above

Marlin/language_cn.h

+/**
+ * Chinese
+ *
+ * LCD Menu Messages
+ * Se also documentation/LCDLanguageFont.md
+ *
+ */
+#ifndef LANGUAGE_CN_H
+#define LANGUAGE_CN_H
+
+  #define MAPPER_NON         // For direct asci codes
+  #define DISPLAY_CHARSET_ISO10646_CN
+
+  #define WELCOME_MSG                         "\xa4\xa5\xa6\xa7"
+  #define MSG_SD_INSERTED                     "\xa8\xa9\xaa\xab"
+  #define MSG_SD_REMOVED                      "\xa8\xa9\xac\xad"
+  #define MSG_MAIN                            "\xae\xaf\xb0"
+  #define MSG_AUTOSTART                       "\xb1\xb2\xb3\xb4"
+  #define MSG_DISABLE_STEPPERS                "\xb5\xb6\xb7\xb8\xb9\xba"
+  #define MSG_AUTO_HOME                       "\xbb\xbc\xbd"
+  #define MSG_SET_HOME_OFFSETS                "\xbe\xbf\xbb\xbc\xbd\xc0\xc1"
+  #define MSG_SET_ORIGIN                      "\xbe\xbf\xbc\xbd"
+  #define MSG_PREHEAT_PLA                     "\xc3\xc4 PLA"
+  #define MSG_PREHEAT_PLA_N                   MSG_PREHEAT_PLA " "
+  #define MSG_PREHEAT_PLA_ALL                 MSG_PREHEAT_PLA " \xc5\xc6"
+  #define MSG_PREHEAT_PLA_BEDONLY             MSG_PREHEAT_PLA " \xc4\xc7"
+  #define MSG_PREHEAT_PLA_SETTINGS            MSG_PREHEAT_PLA " \xbe\xbf"
+  #define MSG_PREHEAT_ABS                     "\xc3\xc4 ABS"
+  #define MSG_PREHEAT_ABS_N                   MSG_PREHEAT_ABS " "
+  #define MSG_PREHEAT_ABS_ALL                 MSG_PREHEAT_ABS " \xc5\xc6"
+  #define MSG_PREHEAT_ABS_BEDONLY             MSG_PREHEAT_ABS " \xbe\xc6"
+  #define MSG_PREHEAT_ABS_SETTINGS            MSG_PREHEAT_ABS " \xbe\xbf"
+  #define MSG_H1                              "1"
+  #define MSG_H2                              "2"
+  #define MSG_H3                              "3"
+  #define MSG_H4                              "4"
+  #define MSG_COOLDOWN                        "\xc8\xc9"
+  #define MSG_SWITCH_PS_ON                    "\xb9\xcb\xca\xb3"
+  #define MSG_SWITCH_PS_OFF                   "\xb9\xcb\xb5\xb6"
+  #define MSG_EXTRUDE                         "\xcc\xad"
+  #define MSG_RETRACT                         "\xbb\xcd"
+  #define MSG_MOVE_AXIS                       "\xc1\xb2\xce"
+  #define MSG_LEVEL_BED                       "\xcf\xe0\xc4\xc7"
+  #define MSG_MOVE_X                          "\xc1\xb2 X"
+  #define MSG_MOVE_Y                          "\xc1\xb2 Y"
+  #define MSG_MOVE_Z                          "\xc1\xb2 Z"
+  #define MSG_MOVE_E                          "\xcc\xad\xba"
+  #define MSG_MOVE_01MM                       "\xc1\xb2 0.1mm"
+  #define MSG_MOVE_1MM                        "\xc1\xb2 1mm"
+  #define MSG_MOVE_10MM                       "\xc1\xb2 10mm"
+  #define MSG_SPEED                           "\xd1\xd2"
+  #define MSG_NOZZLE                          "\xd3\xd4"
+  #define MSG_N2                              " 2"
+  #define MSG_N3                              " 3"
+  #define MSG_N4                              " 4"
+  #define MSG_BED                             "\xc4\xc7"
+  #define MSG_FAN_SPEED                       "\xd5\xd6\xd1\xd2"
+  #define MSG_FLOW                            "\xcc\xad\xd1\xd2"
+  #define MSG_F0                              " 0"
+  #define MSG_F1                              " 1"
+  #define MSG_F2                              " 2"
+  #define MSG_F3                              " 3"
+  #define MSG_CONTROL                         "\xd8\xd9"
+  #define MSG_MIN                             LCD_STR_THERMOMETER " \xda\xdb"
+  #define MSG_MAX                             LCD_STR_THERMOMETER " \xda\xdc"
+  #define MSG_FACTOR                          LCD_STR_THERMOMETER " \xdd\xde"
+  #define MSG_AUTOTEMP                        "\xb1\xb2\xd8\xc9"
+  #define MSG_ON                              "\xb3 "  // intentional space to shift wide symbol to the left
+  #define MSG_OFF                             "\xb5 "  // intentional space to shift wide symbol to the left
+  #define MSG_PID_P                           "PID-P"
+  #define MSG_PID_I                           "PID-I"
+  #define MSG_PID_D                           "PID-D"
+  #define MSG_PID_C                           "PID-C"
+  #define MSG_E2                              " E2"
+  #define MSG_E3                              " E3"
+  #define MSG_E4                              " E4"
+  #define MSG_ACC                             "Accel"
+  #define MSG_VXY_JERK                        "Vxy-jerk"
+  #define MSG_VZ_JERK                         "Vz-jerk"
+  #define MSG_VE_JERK                         "Ve-jerk"
+  #define MSG_VMAX                            "Vmax "
+  #define MSG_X                               "x"
+  #define MSG_Y                               "y"
+  #define MSG_Z                               "z"
+  #define MSG_E                               "e"
+  #define MSG_VMIN                            "Vmin"
+  #define MSG_VTRAV_MIN                       "VTrav min"
+  #define MSG_AMAX                            "Amax "
+  #define MSG_A_RETRACT                       "A-retract"
+  #define MSG_A_TRAVEL                        "A-travel"
+  #define MSG_XSTEPS                          "Xsteps/mm"
+  #define MSG_YSTEPS                          "Ysteps/mm"
+  #define MSG_ZSTEPS                          "Zsteps/mm"
+  #define MSG_ESTEPS                          "Esteps/mm"
+  #define MSG_TEMPERATURE                     "\xc9\xd2"
+  #define MSG_MOTION                          "\xdf\xb2"
+  #define MSG_VOLUMETRIC                      "Filament"
+  #define MSG_VOLUMETRIC_ENABLED              "E in mm3"
+  #define MSG_FILAMENT_SIZE_EXTRUDER_0        "Fil. Dia. 1"
+  #define MSG_FILAMENT_SIZE_EXTRUDER_1        "Fil. Dia. 2"
+  #define MSG_FILAMENT_SIZE_EXTRUDER_2        "Fil. Dia. 3"
+  #define MSG_FILAMENT_SIZE_EXTRUDER_3        "Fil. Dia. 4"
+  #define MSG_CONTRAST                        "LCD contrast"
+  #define MSG_STORE_EPROM                     "Store memory"
+  #define MSG_LOAD_EPROM                      "Load memory"
+  #define MSG_RESTORE_FAILSAFE                "Restore failsafe"
+  #define MSG_REFRESH                         "Refresh"
+  #define MSG_WATCH                           "\xec\xed\xee\xef"
+  #define MSG_PREPARE                         "\xa4\xa5"
+  #define MSG_TUNE                            "\xcf\xf0"
+  #define MSG_PAUSE_PRINT                     "\xf1\xf2\xca\xf3"
+  #define MSG_RESUME_PRINT                    "\xf4\xf5\xca\xf3"
+  #define MSG_STOP_PRINT                      "\xf2\xf6\xca\xf3"
+  #define MSG_CARD_MENU                       "\xaf\xb0"
+  #define MSG_NO_CARD                         "\xf9\xa8"
+  #define MSG_DWELL                           "Sleep..."
+  #define MSG_USERWAIT                        "Wait for user..."
+  #define MSG_RESUMING                        "Resuming print"
+  #define MSG_PRINT_ABORTED                   "Print aborted"
+  #define MSG_NO_MOVE                         "No move."
+  #define MSG_KILLED                          "KILLED. "
+  #define MSG_STOPPED                         "STOPPED. "
+  #define MSG_CONTROL_RETRACT                 "Retract mm"
+  #define MSG_CONTROL_RETRACT_SWAP            "Swap Re.mm"
+  #define MSG_CONTROL_RETRACTF                "Retract  V"
+  #define MSG_CONTROL_RETRACT_ZLIFT           "Hop mm"
+  #define MSG_CONTROL_RETRACT_RECOVER         "UnRet +mm"
+  #define MSG_CONTROL_RETRACT_RECOVER_SWAP    "S UnRet+mm"
+  #define MSG_CONTROL_RETRACT_RECOVERF        "UnRet  V"
+  #define MSG_AUTORETRACT                     "AutoRetr."
+  #define MSG_FILAMENTCHANGE                  "Change filament"
+  #define MSG_INIT_SDCARD                     "Init. SD card"
+  #define MSG_CNG_SDCARD                      "Change SD card"
+  #define MSG_ZPROBE_OUT                      "Z probe out. bed"
+  #define MSG_POSITION_UNKNOWN                "Home X/Y before Z"
+  #define MSG_ZPROBE_ZOFFSET                  "Z Offset"
+  #define MSG_BABYSTEP_X                      "Babystep X"
+  #define MSG_BABYSTEP_Y                      "Babystep Y"
+  #define MSG_BABYSTEP_Z                      "Babystep Z"
+  #define MSG_ENDSTOP_ABORT                   "Endstop abort"
+  #define MSG_HEATING_FAILED_LCD              "Heating failed"
+  #define MSG_ERR_REDUNDANT_TEMP              "Err: REDUNDANT TEMP ERROR"
+  #define MSG_THERMAL_RUNAWAY                 "THERMAL RUNAWAY"
+  #define MSG_ERR_MAXTEMP                     "Err: MAXTEMP"
+  #define MSG_ERR_MINTEMP                     "Err: MINTEMP"
+  #define MSG_ERR_MAXTEMP_BED                 "Err: MAXTEMP BED"
+  #define MSG_END_HOUR                        "hours"
+  #define MSG_END_MINUTE                      "minutes"
+
+  #ifdef DELTA_CALIBRATION_MENU
+    #define MSG_DELTA_CALIBRATE             "Delta Calibration"
+    #define MSG_DELTA_CALIBRATE_X           "Calibrate X"
+    #define MSG_DELTA_CALIBRATE_Y           "Calibrate Y"
+    #define MSG_DELTA_CALIBRATE_Z           "Calibrate Z"
+    #define MSG_DELTA_CALIBRATE_CENTER      "Calibrate Center"
+  #endif // DELTA_CALIBRATION_MENU
+
+#endif // LANGUAGE_CN_H
+

Marlin/language_en.h

 #endif
 
 //#define SIMULATE_ROMFONT //Comment in to see what is seen on the character based displays
-#if !( defined(SIMULATE_ROMFONT)|| defined(DISPLAY_CHARSET_ISO10646_1)|| defined(DISPLAY_CHARSET_ISO10646_5)|| defined(DISPLAY_CHARSET_ISO10646_KANA) )
+#if !( defined(SIMULATE_ROMFONT)|| defined(DISPLAY_CHARSET_ISO10646_1)|| defined(DISPLAY_CHARSET_ISO10646_5)|| defined(DISPLAY_CHARSET_ISO10646_KANA)|| defined(DISPLAY_CHARSET_ISO10646_CN) )
   #define DISPLAY_CHARSET_ISO10646_1 // use the better font on full graphic displays.
 #endif
 

Marlin/ultralcd.cpp

   } while(0)
 
   #ifdef ENCODER_RATE_MULTIPLIER
+
+    //#define ENCODER_RATE_MULTIPLIER_DEBUG  // If defined, output the encoder steps per second value
+
     /**
      * MENU_MULTIPLIER_ITEM generates drawing and handling code for a multiplier menu item
      */
 // place-holders for Ki and Kd edits
 float raw_Ki, raw_Kd;
 
+/**
+ * General function to go directly to a menu
+ */
 static void lcd_goto_menu(menuFunc_t menu, const bool feedback=false, const uint32_t encoder=0) {
   if (currentMenu != menu) {
     currentMenu = menu;
   }
 }
 
-/* Main status screen. It's up to the implementation specific part to show what is needed. As this is very display dependent */
+/**
+ *
+ * "Info Screen"
+ *
+ * This is very display-dependent, so the lcd implementation draws this.
+ */
+
 static void lcd_status_screen() {
 	encoderRateMultiplierEnabled = false;
 
   lcd_setstatus(MSG_PRINT_ABORTED, true);
 }
 
-/* Menu implementation */
+/**
+ *
+ * "Main" menu
+ *
+ */
+
 static void lcd_main_menu() {
   START_MENU();
   MENU_ITEM(back, MSG_WATCH, lcd_status_screen);
 
 #endif //BABYSTEPPING
 
+/**
+ *
+ * "Tune" submenu
+ *
+ */
+
 static void lcd_tune_menu() {
   START_MENU();
   MENU_ITEM(back, MSG_MAIN, lcd_main_menu);
   lcd_return_to_status();
 }
 
+/**
+ *
+ * "Prepare" submenu
+ *
+ */
+
 static void lcd_prepare_menu() {
   START_MENU();
+
+  //
+  // ^ Main
+  //
   MENU_ITEM(back, MSG_MAIN, lcd_main_menu);
-  #if defined( SDSUPPORT ) && defined( MENU_ADDAUTOSTART )
-    MENU_ITEM(function, MSG_AUTOSTART, lcd_autostart_sd);
-  #endif
-  MENU_ITEM(gcode, MSG_DISABLE_STEPPERS, PSTR("M84"));
+
+  //
+  // Auto Home
+  //
   MENU_ITEM(gcode, MSG_AUTO_HOME, PSTR("G28"));
+
+  //
+  // Set Home Offsets
+  //
   MENU_ITEM(function, MSG_SET_HOME_OFFSETS, lcd_set_home_offsets);
   //MENU_ITEM(gcode, MSG_SET_ORIGIN, PSTR("G92 X0 Y0 Z0"));
 
+  //
+  // Level Bed
+  //
+  #ifdef ENABLE_AUTO_BED_LEVELING
+    if (axis_known_position[X_AXIS] && axis_known_position[Y_AXIS])
+      MENU_ITEM(gcode, MSG_LEVEL_BED, PSTR("G29"));
+  #elif defined(MANUAL_BED_LEVELING)
+    MENU_ITEM(submenu, MSG_LEVEL_BED, lcd_level_bed);
+  #endif
+
+  //
+  // Move Axis
+  //
+  MENU_ITEM(submenu, MSG_MOVE_AXIS, lcd_move_menu);
+
+  //
+  // Disable Steppers
+  //
+  MENU_ITEM(gcode, MSG_DISABLE_STEPPERS, PSTR("M84"));
+
+  //
+  // Preheat PLA
+  // Preheat ABS
+  //
   #if TEMP_SENSOR_0 != 0
     #if TEMP_SENSOR_1 != 0 || TEMP_SENSOR_2 != 0 || TEMP_SENSOR_3 != 0 || TEMP_SENSOR_BED != 0
       MENU_ITEM(submenu, MSG_PREHEAT_PLA, lcd_preheat_pla_menu);
     #endif
   #endif
 
+  //
+  // Cooldown
+  //
   MENU_ITEM(function, MSG_COOLDOWN, lcd_cooldown);
 
+  //
+  // Switch power on/off
+  //
   #if HAS_POWER_SWITCH
     if (powersupply)
       MENU_ITEM(gcode, MSG_SWITCH_PS_OFF, PSTR("M81"));
       MENU_ITEM(gcode, MSG_SWITCH_PS_ON, PSTR("M80"));
   #endif
 
-  MENU_ITEM(submenu, MSG_MOVE_AXIS, lcd_move_menu);
-
-  #if defined(MANUAL_BED_LEVELING)
-    MENU_ITEM(submenu, MSG_LEVEL_BED, lcd_level_bed);
+  //
+  // Autostart
+  //
+  #if defined(SDSUPPORT) && defined(MENU_ADDAUTOSTART)
+    MENU_ITEM(function, MSG_AUTOSTART, lcd_autostart_sd);
   #endif
-	
+
   END_MENU();
 }
 
   #endif
 }
 
+/**
+ *
+ * "Prepare" > "Move Axis" submenu
+ *
+ */
+
 float move_menu_scale;
 static void lcd_move_menu_axis();
 
   if (LCD_CLICKED) lcd_goto_menu(lcd_move_menu_axis);
 }
 
+/**
+ *
+ * "Prepare" > "Move Xmm" > "Move XYZ" submenu
+ *
+ */
+
 static void lcd_move_menu_axis() {
   START_MENU();
   MENU_ITEM(back, MSG_MOVE_AXIS, lcd_move_menu);
   lcd_move_menu_axis();
 }
 
+/**
+ *
+ * "Prepare" > "Move Axis" submenu
+ *
+ */
+
 static void lcd_move_menu() {
   START_MENU();
   MENU_ITEM(back, MSG_PREPARE, lcd_prepare_menu);
   END_MENU();
 }
 
+/**
+ *
+ * "Control" submenu
+ *
+ */
+
 static void lcd_control_menu() {
   START_MENU();
   MENU_ITEM(back, MSG_MAIN, lcd_main_menu);
   END_MENU();
 }
 
+/**
+ *
+ * "Temperature" submenu
+ *
+ */
+
 #ifdef PIDTEMP
 
   // Helpers for editing PID Ki & Kd values
 
 #endif //PIDTEMP
 
+/**
+ *
+ * "Control" > "Temperature" submenu
+ *
+ */
+
 static void lcd_control_temperature_menu() {
   START_MENU();
   MENU_ITEM(back, MSG_CONTROL, lcd_control_menu);
   END_MENU();
 }
 
+/**
+ *
+ * "Temperature" > "Preheat PLA conf" submenu
+ *
+ */
+
 static void lcd_control_temperature_preheat_pla_settings_menu() {
   START_MENU();
   MENU_ITEM(back, MSG_TEMPERATURE, lcd_control_temperature_menu);
   END_MENU();
 }
 
+/**
+ *
+ * "Temperature" > "Preheat ABS conf" submenu
+ *
+ */
+
 static void lcd_control_temperature_preheat_abs_settings_menu() {
   START_MENU();
   MENU_ITEM(back, MSG_TEMPERATURE, lcd_control_temperature_menu);
   END_MENU();
 }
 
+/**
+ *
+ * "Control" > "Motion" submenu
+ *
+ */
+
 static void lcd_control_motion_menu() {
   START_MENU();
   MENU_ITEM(back, MSG_CONTROL, lcd_control_menu);
   END_MENU();
 }
 
+/**
+ *
+ * "Control" > "Filament" submenu
+ *
+ */
+
 static void lcd_control_volumetric_menu() {
   START_MENU();
   MENU_ITEM(back, MSG_CONTROL, lcd_control_menu);
   END_MENU();
 }
 
+/**
+ *
+ * "Control" > "Contrast" submenu
+ *
+ */
+
 #ifdef HAS_LCD_CONTRAST
   static void lcd_set_contrast() {
     if (encoderPosition != 0) {
   }
 #endif // HAS_LCD_CONTRAST
 
+/**
+ *
+ * "Control" > "Retract" submenu
+ *
+ */
+
 #ifdef FWRETRACT
   static void lcd_control_retract_menu() {
     START_MENU();
   currentMenuViewOffset = 0;
 }
 
+/**
+ *
+ * "Print from SD" submenu
+ *
+ */
+
 void lcd_sdcard_menu() {
   if (lcdDrawUpdate == 0 && LCD_CLICKED == 0) return;	// nothing to do (so don't thrash the SD card)
   uint16_t fileCnt = card.getnrfilenames();
   END_MENU();
 }
 
+/**
+ *
+ * Functions for editing single values
+ *
+ */
 #define menu_edit_type(_type, _name, _strFunc, scale) \
   bool _menu_edit_ ## _name () { \
     bool isClicked = LCD_CLICKED; \
 menu_edit_type(float, float52, ftostr52, 100)
 menu_edit_type(unsigned long, long5, ftostr5, 0.01)
 
+/**
+ *
+ * Handlers for RepRap World Keypad input
+ *
+ */
 #ifdef REPRAPWORLD_KEYPAD
   static void reprapworld_keypad_move_z_up() {
     encoderPosition = 1;
   static void reprapworld_keypad_move_home() {
     enqueuecommands_P((PSTR("G28"))); // move all axis home
   }
-#endif //REPRAPWORLD_KEYPAD
+#endif // REPRAPWORLD_KEYPAD
 
-/** End of menus **/
 
+/**
+ *
+ * Audio feedback for controller clicks
+ *
+ */
 void lcd_quick_feedback() {
   lcdDrawUpdate = 2;
   next_button_update_ms = millis() + 500;
   #endif
 }
 
-/** Menu action functions **/
-static void menu_action_back(menuFunc_t data) { lcd_goto_menu(data); }
-static void menu_action_submenu(menuFunc_t data) { lcd_goto_menu(data); }
+/**
+ *
+ * Menu actions
+ *
+ */
+static void menu_action_back(menuFunc_t func) { lcd_goto_menu(func); }
+static void menu_action_submenu(menuFunc_t func) { lcd_goto_menu(func); }
 static void menu_action_gcode(const char* pgcode) { enqueuecommands_P(pgcode); }
-static void menu_action_function(menuFunc_t data) { (*data)(); }
+static void menu_action_function(menuFunc_t func) { (*func)(); }
 static void menu_action_sdfile(const char* filename, char* longFilename) {
   char cmd[30];
   char* c;
   return j;
 }
 
+/**
+ * Update the LCD, read encoder buttons, etc.
+ *   - Read button states
+ *   - Check the SD Card slot state
+ *   - Act on RepRap World keypad input
+ *   - Update the encoder position
+ *   - Apply acceleration to the encoder position
+ *   - Reset the Info Screen timeout if there's any input
+ *   - Update status indicators, if any
+ *   - Clear the LCD if lcdDrawUpdate == 2
+ *
+ * Warning: This function is called from interrupt context!
+ */
 void lcd_update() {
   #ifdef ULTIPANEL
     static millis_t return_to_status_ms = 0;
 
     if (lcdDrawUpdate == 2) lcd_implementation_clear();
     if (lcdDrawUpdate) lcdDrawUpdate--;
-    next_lcd_update_ms = millis() + LCD_UPDATE_INTERVAL;
+    next_lcd_update_ms = ms + LCD_UPDATE_INTERVAL;
   }
 }
 
 
 #ifdef ULTIPANEL
 
-////////////////////////
-// Setup Rotary Encoder Bit Values (for two pin encoders to indicate movement)
-// These values are independent of which pins are used for EN_A and EN_B indications
-// The rotary encoder part is also independent to the chipset used for the LCD
-#if defined(EN_A) && defined(EN_B)
-  #define encrot0 0
-  #define encrot1 2
-  #define encrot2 3
-  #define encrot3 1
-#endif 
-
-/* Warning: This function is called from interrupt context */
-void lcd_buttons_update() {
-  #ifdef NEWPANEL
-    uint8_t newbutton = 0;
-    if (READ(BTN_EN1) == 0) newbutton |= EN_A;
-    if (READ(BTN_EN2) == 0) newbutton |= EN_B;
-    #if BTN_ENC > 0
-      if (millis() > next_button_update_ms && READ(BTN_ENC) == 0) newbutton |= EN_C;
-    #endif
-    buttons = newbutton;
-    #ifdef LCD_HAS_SLOW_BUTTONS
-      buttons |= slow_buttons;
-    #endif
-    #ifdef REPRAPWORLD_KEYPAD
-      // for the reprapworld_keypad
-      uint8_t newbutton_reprapworld_keypad=0;
+  /**
+   * Setup Rotary Encoder Bit Values (for two pin encoders to indicate movement)
+   * These values are independent of which pins are used for EN_A and EN_B indications
+   * The rotary encoder part is also independent to the chipset used for the LCD
+   */
+  #if defined(EN_A) && defined(EN_B)
+    #define encrot0 0
+    #define encrot1 2
+    #define encrot2 3
+    #define encrot3 1
+  #endif 
+
+  /**
+   * Read encoder buttons from the hardware registers
+   * Warning: This function is called from interrupt context!
+   */
+  void lcd_buttons_update() {
+    #ifdef NEWPANEL
+      uint8_t newbutton = 0;
+      if (READ(BTN_EN1) == 0) newbutton |= EN_A;
+      if (READ(BTN_EN2) == 0) newbutton |= EN_B;
+      #if BTN_ENC > 0
+        if (millis() > next_button_update_ms && READ(BTN_ENC) == 0) newbutton |= EN_C;
+      #endif
+      buttons = newbutton;
+      #ifdef LCD_HAS_SLOW_BUTTONS
+        buttons |= slow_buttons;
+      #endif
+      #ifdef REPRAPWORLD_KEYPAD
+        // for the reprapworld_keypad
+        uint8_t newbutton_reprapworld_keypad=0;
+        WRITE(SHIFT_LD, LOW);
+        WRITE(SHIFT_LD, HIGH);
+        for(int8_t i = 0; i < 8; i++) {
+          newbutton_reprapworld_keypad >>= 1;
+          if (READ(SHIFT_OUT)) newbutton_reprapworld_keypad |= BIT(7);
+          WRITE(SHIFT_CLK, HIGH);
+          WRITE(SHIFT_CLK, LOW);
+        }
+        buttons_reprapworld_keypad=~newbutton_reprapworld_keypad; //invert it, because a pressed switch produces a logical 0
+      #endif
+    #else   //read it from the shift register
+      uint8_t newbutton = 0;
       WRITE(SHIFT_LD, LOW);
       WRITE(SHIFT_LD, HIGH);
-      for(int8_t i = 0; i < 8; i++) {
-        newbutton_reprapworld_keypad >>= 1;
-        if (READ(SHIFT_OUT)) newbutton_reprapworld_keypad |= BIT(7);
+      unsigned char tmp_buttons = 0;
+      for(int8_t i=0; i<8; i++) {
+        newbutton >>= 1;
+        if (READ(SHIFT_OUT)) newbutton |= BIT(7);
         WRITE(SHIFT_CLK, HIGH);
         WRITE(SHIFT_CLK, LOW);
       }
-      buttons_reprapworld_keypad=~newbutton_reprapworld_keypad; //invert it, because a pressed switch produces a logical 0
-    #endif
-  #else   //read it from the shift register
-    uint8_t newbutton = 0;
-    WRITE(SHIFT_LD, LOW);
-    WRITE(SHIFT_LD, HIGH);
-    unsigned char tmp_buttons = 0;
-    for(int8_t i=0; i<8; i++) {
-      newbutton >>= 1;
-      if (READ(SHIFT_OUT)) newbutton |= BIT(7);
-      WRITE(SHIFT_CLK, HIGH);
-      WRITE(SHIFT_CLK, LOW);
-    }
-    buttons = ~newbutton; //invert it, because a pressed switch produces a logical 0
-  #endif //!NEWPANEL
-
-  //manage encoder rotation
-  uint8_t enc=0;
-  if (buttons & EN_A) enc |= B01;
-  if (buttons & EN_B) enc |= B10;
-  if (enc != lastEncoderBits) {
-    switch(enc) {
-      case encrot0:
-        if (lastEncoderBits==encrot3) encoderDiff++;
-        else if (lastEncoderBits==encrot1) encoderDiff--;
-        break;
-      case encrot1:
-        if (lastEncoderBits==encrot0) encoderDiff++;
-        else if (lastEncoderBits==encrot2) encoderDiff--;
-        break;
-      case encrot2:
-        if (lastEncoderBits==encrot1) encoderDiff++;
-        else if (lastEncoderBits==encrot3) encoderDiff--;
-        break;
-      case encrot3:
-        if (lastEncoderBits==encrot2) encoderDiff++;
-        else if (lastEncoderBits==encrot0) encoderDiff--;
-        break;
+      buttons = ~newbutton; //invert it, because a pressed switch produces a logical 0
+    #endif //!NEWPANEL
+
+    //manage encoder rotation
+    uint8_t enc=0;
+    if (buttons & EN_A) enc |= B01;
+    if (buttons & EN_B) enc |= B10;
+    if (enc != lastEncoderBits) {
+      switch(enc) {
+        case encrot0:
+          if (lastEncoderBits==encrot3) encoderDiff++;
+          else if (lastEncoderBits==encrot1) encoderDiff--;
+          break;
+        case encrot1:
+          if (lastEncoderBits==encrot0) encoderDiff++;
+          else if (lastEncoderBits==encrot2) encoderDiff--;
+          break;
+        case encrot2:
+          if (lastEncoderBits==encrot1) encoderDiff++;
+          else if (lastEncoderBits==encrot3) encoderDiff--;
+          break;
+        case encrot3:
+          if (lastEncoderBits==encrot2) encoderDiff++;
+          else if (lastEncoderBits==encrot0) encoderDiff--;
+          break;
+      }
     }
+    lastEncoderBits = enc;
   }
-  lastEncoderBits = enc;
-}
-
-bool lcd_detected(void) {
-  #if (defined(LCD_I2C_TYPE_MCP23017) || defined(LCD_I2C_TYPE_MCP23008)) && defined(DETECT_DEVICE)
-    return lcd.LcdDetected() == 1;
-  #else
-    return true;
-  #endif
-}
 
-void lcd_buzz(long duration, uint16_t freq) {
-  if (freq > 0) {
-    #if BEEPER > 0
-      SET_OUTPUT(BEEPER);
-      tone(BEEPER, freq, duration);
-      delay(duration);
-    #elif defined(LCD_USE_I2C_BUZZER)
-      lcd.buzz(duration, freq);
+  bool lcd_detected(void) {
+    #if (defined(LCD_I2C_TYPE_MCP23017) || defined(LCD_I2C_TYPE_MCP23008)) && defined(DETECT_DEVICE)
+      return lcd.LcdDetected() == 1;
     #else
-      delay(duration);
+      return true;
     #endif
   }
-  else {
-    delay(duration);
+
+  void lcd_buzz(long duration, uint16_t freq) {
+    if (freq > 0) {
+      #if BEEPER > 0
+        SET_OUTPUT(BEEPER);
+        tone(BEEPER, freq, duration);
+        delay(duration);
+      #elif defined(LCD_USE_I2C_BUZZER)
+        lcd.buzz(duration, freq);
+      #else
+        delay(duration);
+      #endif
+    }
+    else {
+      delay(duration);
+    }
   }
-}
 
-bool lcd_clicked() { return LCD_CLICKED; }
+  bool lcd_clicked() { return LCD_CLICKED; }
 
-#endif //ULTIPANEL
+#endif // ULTIPANEL
 
 /*********************************/
 /** Number to string conversion **/
 }
 
 // Convert float to string with 1.234 format
-char *ftostr43(const float &x)
-{
+char *ftostr43(const float &x) {
 	long xx = x * 1000;
     if (xx >= 0)
 		conv[0] = (xx / 1000) % 10 + '0';
 }
 
 // Convert float to string with 1.23 format
-char *ftostr12ns(const float &x)
-{
+char *ftostr12ns(const float &x) {
   long xx=x*100;
   
   xx=abs(xx);
 #ifdef MANUAL_BED_LEVELING
 
   static int _lcd_level_bed_position;
+
+  /**
+   * MBL Wait for controller movement and clicks:
+   *   - Movement adjusts the Z axis
+   *   - Click saves the Z and goes to the next mesh point
+   */
   static void _lcd_level_bed() {
     if (encoderPosition != 0) {
       refresh_cmd_timeout();
     }
   }
 
+  /**
+   * MBL Move to mesh starting point
+   */
   static void _lcd_level_bed_homing() {
     if (lcdDrawUpdate) lcd_implementation_drawedit(PSTR("XYZ"), "Homing");
     if (axis_known_position[X_AXIS] && axis_known_position[Y_AXIS] && axis_known_position[Z_AXIS]) {
     lcdDrawUpdate = 2;
   }
 
+  /**
+   * MBL entry-point
+   */
   static void lcd_level_bed() {
     axis_known_position[X_AXIS] = axis_known_position[Y_AXIS] = axis_known_position[Z_AXIS] = false;
     mbl.reset();

Marlin/ultralcd_st7920_u8glib_rrd.h

 //#define PAGE_HEIGHT 16  //256 byte framebuffer
 #define PAGE_HEIGHT 32  //512 byte framebuffer
 
-#define WIDTH 128
-#define HEIGHT 64
+#define LCD_PIXEL_WIDTH 128
+#define LCD_PIXEL_HEIGHT 64
 
 #include <U8glib.h>
 
         ST7920_WRITE_BYTE(0x01);       //clear CGRAM ram
         u8g_Delay(15);                 //delay for CGRAM clear
         ST7920_WRITE_BYTE(0x3E);       //extended mode + GDRAM active
-        for(y=0;y<HEIGHT/2;y++)        //clear GDRAM
+        for(y=0;y<LCD_PIXEL_HEIGHT/2;y++)        //clear GDRAM
         {
           ST7920_WRITE_BYTE(0x80|y);   //set y
           ST7920_WRITE_BYTE(0x80);     //set x = 0
           ST7920_SET_DAT();
-          for(i=0;i<2*WIDTH/8;i++)     //2x width clears both segments
+          for(i=0;i<2*LCD_PIXEL_WIDTH/8;i++)     //2x width clears both segments
             ST7920_WRITE_BYTE(0);
           ST7920_SET_CMD();
         }
           }
 
           ST7920_SET_DAT();
-          ST7920_WRITE_BYTES(ptr,WIDTH/8); //ptr is incremented inside of macro
+          ST7920_WRITE_BYTES(ptr,LCD_PIXEL_WIDTH/8); //ptr is incremented inside of macro
           y++;
         }
         ST7920_NCS();
 #endif
 }
 
-uint8_t   u8g_dev_st7920_128x64_rrd_buf[WIDTH*(PAGE_HEIGHT/8)] U8G_NOCOMMON;
-u8g_pb_t  u8g_dev_st7920_128x64_rrd_pb = {{PAGE_HEIGHT,HEIGHT,0,0,0},WIDTH,u8g_dev_st7920_128x64_rrd_buf};
+uint8_t   u8g_dev_st7920_128x64_rrd_buf[LCD_PIXEL_WIDTH*(PAGE_HEIGHT/8)] U8G_NOCOMMON;
+u8g_pb_t  u8g_dev_st7920_128x64_rrd_pb = {{PAGE_HEIGHT,LCD_PIXEL_HEIGHT,0,0,0},LCD_PIXEL_WIDTH,u8g_dev_st7920_128x64_rrd_buf};
 u8g_dev_t u8g_dev_st7920_128x64_rrd_sw_spi = {u8g_dev_rrd_st7920_128x64_fn,&u8g_dev_st7920_128x64_rrd_pb,&u8g_com_null_fn};
 
 class U8GLIB_ST7920_128X64_RRD : public U8GLIB