Merge pull request #6124 from Bob-the-Kuhn/MCP4728-consistency

MCP4728 consistency & fix ultralcd.cpp (PRINTRBOARD Rev F and RIGIDBOARD V2)

Marlin/Configuration_adv.h

 // Microstep setting (Only functional when stepper driver microstep pins are connected to MCU.
 #define MICROSTEP_MODES {16,16,16,16,16} // [1,2,4,8,16]
 
-// Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
-#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
-
-// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)
+/**
+ *  @section  stepper motor current
+ *
+ *  Some boards have a means of setting the stepper motor current via firmware.
+ *
+ *  The power on motor currents are set by:
+ *    PWM_MOTOR_CURRENT - used by MINIRAMBO & ULTIMAIN_2
+ *                         known compatible chips: A4982
+ *    DIGIPOT_MOTOR_CURRENT - used by BQ_ZUM_MEGA_3D, RAMBO & SCOOVO_X9H
+ *                         known compatible chips: AD5206
+ *    DAC_MOTOR_CURRENT_DEFAULT - used by PRINTRBOARD_REVF & RIGIDBOARD_V2
+ *                         known compatible chips: MCP4728
+ *    DIGIPOT_I2C_MOTOR_CURRENTS - used by 5DPRINT & AZTEEG_X3_PRO
+ *                         known compatible chips: MCP4451
+ *
+ *  Motor currents can also be set by M907 - M910 and by the LCD.
+ *    M907 - applies to all.
+ *    M908 - BQ_ZUM_MEGA_3D, RAMBO, PRINTRBOARD_REVF, RIGIDBOARD_V2 & SCOOVO_X9H
+ *    M909, M910 & LCD - only PRINTRBOARD_REVF & RIGIDBOARD_V2
+ */
 //#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps
-
-// uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
-//#define DIGIPOT_I2C
-// Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8
-#define DIGIPOT_I2C_NUM_CHANNELS 8
-// actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS
-#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}
+//#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
+//#define DAC_STEPPER_DFLT { 70, 80, 90, 80 } // Default drive percent - X, Y, Z, E axis
+
+/*  5DPRINT & AZTEEG_X3_PRO */
+//#define DIGIPOT_I2C  // uncomment to enable
+#define DIGIPOT_I2C_NUM_CHANNELS 8 // 5DPRINT: 4     AZTEEG_X3_PRO: 8
+/* actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS */
+#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}  //  AZTEEG_X3_PRO
 
 //===========================================================================
 //=============================Additional Features===========================

Marlin/example_configurations/Cartesio/Configuration_adv.h

 // Microstep setting (Only functional when stepper driver microstep pins are connected to MCU.
 #define MICROSTEP_MODES {16,16,16,16,16} // [1,2,4,8,16]
 
-// Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
-#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
-
-// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)
+/**
+ *  @section  stepper motor current
+ *
+ *  Some boards have a means of setting the stepper motor current via firmware.
+ *
+ *  The power on motor currents are set by:
+ *    PWM_MOTOR_CURRENT - used by MINIRAMBO & ULTIMAIN_2
+ *                         known compatible chips: A4982
+ *    DIGIPOT_MOTOR_CURRENT - used by BQ_ZUM_MEGA_3D, RAMBO & SCOOVO_X9H
+ *                         known compatible chips: AD5206
+ *    DAC_MOTOR_CURRENT_DEFAULT - used by PRINTRBOARD_REVF & RIGIDBOARD_V2
+ *                         known compatible chips: MCP4728
+ *    DIGIPOT_I2C_MOTOR_CURRENTS - used by 5DPRINT & AZTEEG_X3_PRO
+ *                         known compatible chips: MCP4451
+ *
+ *  Motor currents can also be set by M907 - M910 and by the LCD.
+ *    M907 - applies to all.
+ *    M908 - BQ_ZUM_MEGA_3D, RAMBO, PRINTRBOARD_REVF, RIGIDBOARD_V2 & SCOOVO_X9H
+ *    M909, M910 & LCD - only PRINTRBOARD_REVF & RIGIDBOARD_V2
+ */
 //#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps
-
-// uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
-//#define DIGIPOT_I2C
-// Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8
-#define DIGIPOT_I2C_NUM_CHANNELS 8
-// actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS
-#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}
+//#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
+//#define DAC_STEPPER_DFLT { 70, 80, 90, 80 } // Default drive percent - X, Y, Z, E axis
+
+/*  5DPRINT & AZTEEG_X3_PRO */
+//#define DIGIPOT_I2C  // uncomment to enable
+#define DIGIPOT_I2C_NUM_CHANNELS 8 // 5DPRINT: 4     AZTEEG_X3_PRO: 8
+/* actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS */
+#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}  //  AZTEEG_X3_PRO
 
 //===========================================================================
 //=============================Additional Features===========================

Marlin/example_configurations/Felix/Configuration_adv.h

 // Microstep setting (Only functional when stepper driver microstep pins are connected to MCU.
 #define MICROSTEP_MODES {16,16,16,16,16} // [1,2,4,8,16]
 
-// Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
-#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
-
-// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)
+/**
+ *  @section  stepper motor current
+ *
+ *  Some boards have a means of setting the stepper motor current via firmware.
+ *
+ *  The power on motor currents are set by:
+ *    PWM_MOTOR_CURRENT - used by MINIRAMBO & ULTIMAIN_2
+ *                         known compatible chips: A4982
+ *    DIGIPOT_MOTOR_CURRENT - used by BQ_ZUM_MEGA_3D, RAMBO & SCOOVO_X9H
+ *                         known compatible chips: AD5206
+ *    DAC_MOTOR_CURRENT_DEFAULT - used by PRINTRBOARD_REVF & RIGIDBOARD_V2
+ *                         known compatible chips: MCP4728
+ *    DIGIPOT_I2C_MOTOR_CURRENTS - used by 5DPRINT & AZTEEG_X3_PRO
+ *                         known compatible chips: MCP4451
+ *
+ *  Motor currents can also be set by M907 - M910 and by the LCD.
+ *    M907 - applies to all.
+ *    M908 - BQ_ZUM_MEGA_3D, RAMBO, PRINTRBOARD_REVF, RIGIDBOARD_V2 & SCOOVO_X9H
+ *    M909, M910 & LCD - only PRINTRBOARD_REVF & RIGIDBOARD_V2
+ */
 //#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps
-
-// uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
-//#define DIGIPOT_I2C
-// Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8
-#define DIGIPOT_I2C_NUM_CHANNELS 8
-// actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS
-#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}
+//#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
+//#define DAC_STEPPER_DFLT { 70, 80, 90, 80 } // Default drive percent - X, Y, Z, E axis
+
+/*  5DPRINT & AZTEEG_X3_PRO */
+//#define DIGIPOT_I2C  // uncomment to enable
+#define DIGIPOT_I2C_NUM_CHANNELS 8 // 5DPRINT: 4     AZTEEG_X3_PRO: 8
+/* actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS */
+#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}  //  AZTEEG_X3_PRO
 
 //===========================================================================
 //=============================Additional Features===========================

Marlin/example_configurations/Hephestos/Configuration_adv.h

 // Microstep setting (Only functional when stepper driver microstep pins are connected to MCU.
 #define MICROSTEP_MODES {16,16,16,16,16} // [1,2,4,8,16]
 
-// Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
-#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
-
-// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)
+/**
+ *  @section  stepper motor current
+ *
+ *  Some boards have a means of setting the stepper motor current via firmware.
+ *
+ *  The power on motor currents are set by:
+ *    PWM_MOTOR_CURRENT - used by MINIRAMBO & ULTIMAIN_2
+ *                         known compatible chips: A4982
+ *    DIGIPOT_MOTOR_CURRENT - used by BQ_ZUM_MEGA_3D, RAMBO & SCOOVO_X9H
+ *                         known compatible chips: AD5206
+ *    DAC_MOTOR_CURRENT_DEFAULT - used by PRINTRBOARD_REVF & RIGIDBOARD_V2
+ *                         known compatible chips: MCP4728
+ *    DIGIPOT_I2C_MOTOR_CURRENTS - used by 5DPRINT & AZTEEG_X3_PRO
+ *                         known compatible chips: MCP4451
+ *
+ *  Motor currents can also be set by M907 - M910 and by the LCD.
+ *    M907 - applies to all.
+ *    M908 - BQ_ZUM_MEGA_3D, RAMBO, PRINTRBOARD_REVF, RIGIDBOARD_V2 & SCOOVO_X9H
+ *    M909, M910 & LCD - only PRINTRBOARD_REVF & RIGIDBOARD_V2
+ */
 //#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps
-
-// uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
-//#define DIGIPOT_I2C
-// Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8
-#define DIGIPOT_I2C_NUM_CHANNELS 8
-// actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS
-#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}
+//#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
+//#define DAC_STEPPER_DFLT { 70, 80, 90, 80 } // Default drive percent - X, Y, Z, E axis
+
+/*  5DPRINT & AZTEEG_X3_PRO */
+//#define DIGIPOT_I2C  // uncomment to enable
+#define DIGIPOT_I2C_NUM_CHANNELS 8 // 5DPRINT: 4     AZTEEG_X3_PRO: 8
+/* actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS */
+#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}  //  AZTEEG_X3_PRO
 
 //===========================================================================
 //=============================Additional Features===========================

Marlin/example_configurations/Hephestos_2/Configuration_adv.h

 // Microstep setting (Only functional when stepper driver microstep pins are connected to MCU.
 #define MICROSTEP_MODES {16,16,16,16,16} // [1,2,4,8,16]
 
-// Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
+/**
+ *  @section  stepper motor current
+ *
+ *  Some boards have a means of setting the stepper motor current via firmware.
+ *
+ *  The power on motor currents are set by:
+ *    PWM_MOTOR_CURRENT - used by MINIRAMBO & ULTIMAIN_2
+ *                         known compatible chips: A4982
+ *    DIGIPOT_MOTOR_CURRENT - used by BQ_ZUM_MEGA_3D, RAMBO & SCOOVO_X9H
+ *                         known compatible chips: AD5206
+ *    DAC_MOTOR_CURRENT_DEFAULT - used by PRINTRBOARD_REVF & RIGIDBOARD_V2
+ *                         known compatible chips: MCP4728
+ *    DIGIPOT_I2C_MOTOR_CURRENTS - used by 5DPRINT & AZTEEG_X3_PRO
+ *                         known compatible chips: MCP4451
+ *
+ *  Motor currents can also be set by M907 - M910 and by the LCD.
+ *    M907 - applies to all.
+ *    M908 - BQ_ZUM_MEGA_3D, RAMBO, PRINTRBOARD_REVF, RIGIDBOARD_V2 & SCOOVO_X9H
+ *    M909, M910 & LCD - only PRINTRBOARD_REVF & RIGIDBOARD_V2
+ */
+//#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps
 #define DIGIPOT_MOTOR_CURRENT {150, 170, 180, 190, 180} // Values 0-255 (bq ZUM Mega 3D (default): X = 150 [~1.17A]; Y = 170 [~1.33A]; Z = 180 [~1.41A]; E0 = 190 [~1.49A])
 
-// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)
-//#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps
+//#define DAC_STEPPER_DFLT { 70, 80, 90, 80 } // Default drive percent - X, Y, Z, E axis
 
-// uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
-//#define DIGIPOT_I2C
-// Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8
-#define DIGIPOT_I2C_NUM_CHANNELS 8
-// actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS
-#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}
+/*  5DPRINT & AZTEEG_X3_PRO */
+//#define DIGIPOT_I2C  // uncomment to enable
+#define DIGIPOT_I2C_NUM_CHANNELS 8 // 5DPRINT: 4     AZTEEG_X3_PRO: 8
+/* actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS */
+#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}  //  AZTEEG_X3_PRO
 
 //===========================================================================
 //=============================Additional Features===========================

Marlin/example_configurations/K8200/Configuration_adv.h

 // Microstep setting (Only functional when stepper driver microstep pins are connected to MCU.
 #define MICROSTEP_MODES {16,16,16,16,16} // [1,2,4,8,16]
 
-// Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
-#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
-
-// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)
+/**
+ *  @section  stepper motor current
+ *
+ *  Some boards have a means of setting the stepper motor current via firmware.
+ *
+ *  The power on motor currents are set by:
+ *    PWM_MOTOR_CURRENT - used by MINIRAMBO & ULTIMAIN_2
+ *                         known compatible chips: A4982
+ *    DIGIPOT_MOTOR_CURRENT - used by BQ_ZUM_MEGA_3D, RAMBO & SCOOVO_X9H
+ *                         known compatible chips: AD5206
+ *    DAC_MOTOR_CURRENT_DEFAULT - used by PRINTRBOARD_REVF & RIGIDBOARD_V2
+ *                         known compatible chips: MCP4728
+ *    DIGIPOT_I2C_MOTOR_CURRENTS - used by 5DPRINT & AZTEEG_X3_PRO
+ *                         known compatible chips: MCP4451
+ *
+ *  Motor currents can also be set by M907 - M910 and by the LCD.
+ *    M907 - applies to all.
+ *    M908 - BQ_ZUM_MEGA_3D, RAMBO, PRINTRBOARD_REVF, RIGIDBOARD_V2 & SCOOVO_X9H
+ *    M909, M910 & LCD - only PRINTRBOARD_REVF & RIGIDBOARD_V2
+ */
 //#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps
-
-// uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
-//#define DIGIPOT_I2C
-// Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8
-#define DIGIPOT_I2C_NUM_CHANNELS 8
-// actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS
-#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}
+//#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
+//#define DAC_STEPPER_DFLT { 70, 80, 90, 80 } // Default drive percent - X, Y, Z, E axis
+
+/*  5DPRINT & AZTEEG_X3_PRO */
+//#define DIGIPOT_I2C  // uncomment to enable
+#define DIGIPOT_I2C_NUM_CHANNELS 8 // 5DPRINT: 4     AZTEEG_X3_PRO: 8
+/* actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS */
+#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}  //  AZTEEG_X3_PRO
 
 //===========================================================================
 //=============================Additional Features===========================

Marlin/example_configurations/K8400/Configuration_adv.h

 // Microstep setting (Only functional when stepper driver microstep pins are connected to MCU.
 #define MICROSTEP_MODES {16,16,16,16,16} // [1,2,4,8,16]
 
-// Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
-#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
-
-// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)
+/**
+ *  @section  stepper motor current
+ *
+ *  Some boards have a means of setting the stepper motor current via firmware.
+ *
+ *  The power on motor currents are set by:
+ *    PWM_MOTOR_CURRENT - used by MINIRAMBO & ULTIMAIN_2
+ *                         known compatible chips: A4982
+ *    DIGIPOT_MOTOR_CURRENT - used by BQ_ZUM_MEGA_3D, RAMBO & SCOOVO_X9H
+ *                         known compatible chips: AD5206
+ *    DAC_MOTOR_CURRENT_DEFAULT - used by PRINTRBOARD_REVF & RIGIDBOARD_V2
+ *                         known compatible chips: MCP4728
+ *    DIGIPOT_I2C_MOTOR_CURRENTS - used by 5DPRINT & AZTEEG_X3_PRO
+ *                         known compatible chips: MCP4451
+ *
+ *  Motor currents can also be set by M907 - M910 and by the LCD.
+ *    M907 - applies to all.
+ *    M908 - BQ_ZUM_MEGA_3D, RAMBO, PRINTRBOARD_REVF, RIGIDBOARD_V2 & SCOOVO_X9H
+ *    M909, M910 & LCD - only PRINTRBOARD_REVF & RIGIDBOARD_V2
+ */
 //#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps
-
-// uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
-//#define DIGIPOT_I2C
-// Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8
-#define DIGIPOT_I2C_NUM_CHANNELS 8
-// actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS
-#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}
+//#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
+//#define DAC_STEPPER_DFLT { 70, 80, 90, 80 } // Default drive percent - X, Y, Z, E axis
+
+/*  5DPRINT & AZTEEG_X3_PRO */
+//#define DIGIPOT_I2C  // uncomment to enable
+#define DIGIPOT_I2C_NUM_CHANNELS 8 // 5DPRINT: 4     AZTEEG_X3_PRO: 8
+/* actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS */
+#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}  //  AZTEEG_X3_PRO
 
 //===========================================================================
 //=============================Additional Features===========================

Marlin/example_configurations/RigidBot/Configuration_adv.h

 // Microstep setting (Only functional when stepper driver microstep pins are connected to MCU.
 #define MICROSTEP_MODES {16,16,16,16,16} // [1,2,4,8,16]
 
-// Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
-#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
-
-// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)
+/**
+ *  @section  stepper motor current
+ *
+ *  Some boards have a means of setting the stepper motor current via firmware.
+ *
+ *  The power on motor currents are set by:
+ *    PWM_MOTOR_CURRENT - used by MINIRAMBO & ULTIMAIN_2
+ *                         known compatible chips: A4982
+ *    DIGIPOT_MOTOR_CURRENT - used by BQ_ZUM_MEGA_3D, RAMBO & SCOOVO_X9H
+ *                         known compatible chips: AD5206
+ *    DAC_MOTOR_CURRENT_DEFAULT - used by PRINTRBOARD_REVF & RIGIDBOARD_V2
+ *                         known compatible chips: MCP4728
+ *    DIGIPOT_I2C_MOTOR_CURRENTS - used by 5DPRINT & AZTEEG_X3_PRO
+ *                         known compatible chips: MCP4451
+ *
+ *  Motor currents can also be set by M907 - M910 and by the LCD.
+ *    M907 - applies to all.
+ *    M908 - BQ_ZUM_MEGA_3D, RAMBO, PRINTRBOARD_REVF, RIGIDBOARD_V2 & SCOOVO_X9H
+ *    M909, M910 & LCD - only PRINTRBOARD_REVF & RIGIDBOARD_V2
+ */
 //#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps
-
-// uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
-//#define DIGIPOT_I2C
-// Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8
-#define DIGIPOT_I2C_NUM_CHANNELS 8
-// actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS
-#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}
+//#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
+//#define DAC_STEPPER_DFLT { 70, 80, 90, 80 } // Default drive percent - X, Y, Z, E axis
+
+/*  5DPRINT & AZTEEG_X3_PRO */
+//#define DIGIPOT_I2C  // uncomment to enable
+#define DIGIPOT_I2C_NUM_CHANNELS 8 // 5DPRINT: 4     AZTEEG_X3_PRO: 8
+/* actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS */
+#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}  //  AZTEEG_X3_PRO
 
 //===========================================================================
 //=============================Additional Features===========================

Marlin/example_configurations/SCARA/Configuration_adv.h

 // Microstep setting (Only functional when stepper driver microstep pins are connected to MCU.
 #define MICROSTEP_MODES {16,16,16,16,16} // [1,2,4,8,16]
 
-// Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
-#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
-
-// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)
+/**
+ *  @section  stepper motor current
+ *
+ *  Some boards have a means of setting the stepper motor current via firmware.
+ *
+ *  The power on motor currents are set by:
+ *    PWM_MOTOR_CURRENT - used by MINIRAMBO & ULTIMAIN_2
+ *                         known compatible chips: A4982
+ *    DIGIPOT_MOTOR_CURRENT - used by BQ_ZUM_MEGA_3D, RAMBO & SCOOVO_X9H
+ *                         known compatible chips: AD5206
+ *    DAC_MOTOR_CURRENT_DEFAULT - used by PRINTRBOARD_REVF & RIGIDBOARD_V2
+ *                         known compatible chips: MCP4728
+ *    DIGIPOT_I2C_MOTOR_CURRENTS - used by 5DPRINT & AZTEEG_X3_PRO
+ *                         known compatible chips: MCP4451
+ *
+ *  Motor currents can also be set by M907 - M910 and by the LCD.
+ *    M907 - applies to all.
+ *    M908 - BQ_ZUM_MEGA_3D, RAMBO, PRINTRBOARD_REVF, RIGIDBOARD_V2 & SCOOVO_X9H
+ *    M909, M910 & LCD - only PRINTRBOARD_REVF & RIGIDBOARD_V2
+ */
 //#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps
-
-// uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
-//#define DIGIPOT_I2C
-// Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8
-#define DIGIPOT_I2C_NUM_CHANNELS 8
-// actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS
-#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}
+//#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
+//#define DAC_STEPPER_DFLT { 70, 80, 90, 80 } // Default drive percent - X, Y, Z, E axis
+
+/*  5DPRINT & AZTEEG_X3_PRO */
+//#define DIGIPOT_I2C  // uncomment to enable
+#define DIGIPOT_I2C_NUM_CHANNELS 8 // 5DPRINT: 4     AZTEEG_X3_PRO: 8
+/* actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS */
+#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}  //  AZTEEG_X3_PRO
 
 //===========================================================================
 //=============================Additional Features===========================

Marlin/example_configurations/TAZ4/Configuration_adv.h

 // Microstep setting (Only functional when stepper driver microstep pins are connected to MCU.
 #define MICROSTEP_MODES {16,16,4,16,16} // [1,2,4,8,16]
 
-// Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
-#define DIGIPOT_MOTOR_CURRENT {175,175,240,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
-
-// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)
+/**
+ *  @section  stepper motor current
+ *
+ *  Some boards have a means of setting the stepper motor current via firmware.
+ *
+ *  The power on motor currents are set by:
+ *    PWM_MOTOR_CURRENT - used by MINIRAMBO & ULTIMAIN_2
+ *                         known compatible chips: A4982
+ *    DIGIPOT_MOTOR_CURRENT - used by BQ_ZUM_MEGA_3D, RAMBO & SCOOVO_X9H
+ *                         known compatible chips: AD5206
+ *    DAC_MOTOR_CURRENT_DEFAULT - used by PRINTRBOARD_REVF & RIGIDBOARD_V2
+ *                         known compatible chips: MCP4728
+ *    DIGIPOT_I2C_MOTOR_CURRENTS - used by 5DPRINT & AZTEEG_X3_PRO
+ *                         known compatible chips: MCP4451
+ *
+ *  Motor currents can also be set by M907 - M910 and by the LCD.
+ *    M907 - applies to all.
+ *    M908 - BQ_ZUM_MEGA_3D, RAMBO, PRINTRBOARD_REVF, RIGIDBOARD_V2 & SCOOVO_X9H
+ *    M909, M910 & LCD - only PRINTRBOARD_REVF & RIGIDBOARD_V2
+ */
 //#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps
-
-// uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
-//#define DIGIPOT_I2C
-// Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8
-#define DIGIPOT_I2C_NUM_CHANNELS 8
-// actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS
-#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}
+//#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
+//#define DAC_STEPPER_DFLT { 70, 80, 90, 80 } // Default drive percent - X, Y, Z, E axis
+
+/*  5DPRINT & AZTEEG_X3_PRO */
+//#define DIGIPOT_I2C  // uncomment to enable
+#define DIGIPOT_I2C_NUM_CHANNELS 8 // 5DPRINT: 4     AZTEEG_X3_PRO: 8
+/* actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS */
+#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}  //  AZTEEG_X3_PRO
 
 //===========================================================================
 //=============================Additional Features===========================

Marlin/example_configurations/WITBOX/Configuration_adv.h

 // Microstep setting (Only functional when stepper driver microstep pins are connected to MCU.
 #define MICROSTEP_MODES {16,16,16,16,16} // [1,2,4,8,16]
 
-// Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
-#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
-
-// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)
+/**
+ *  @section  stepper motor current
+ *
+ *  Some boards have a means of setting the stepper motor current via firmware.
+ *
+ *  The power on motor currents are set by:
+ *    PWM_MOTOR_CURRENT - used by MINIRAMBO & ULTIMAIN_2
+ *                         known compatible chips: A4982
+ *    DIGIPOT_MOTOR_CURRENT - used by BQ_ZUM_MEGA_3D, RAMBO & SCOOVO_X9H
+ *                         known compatible chips: AD5206
+ *    DAC_MOTOR_CURRENT_DEFAULT - used by PRINTRBOARD_REVF & RIGIDBOARD_V2
+ *                         known compatible chips: MCP4728
+ *    DIGIPOT_I2C_MOTOR_CURRENTS - used by 5DPRINT & AZTEEG_X3_PRO
+ *                         known compatible chips: MCP4451
+ *
+ *  Motor currents can also be set by M907 - M910 and by the LCD.
+ *    M907 - applies to all.
+ *    M908 - BQ_ZUM_MEGA_3D, RAMBO, PRINTRBOARD_REVF, RIGIDBOARD_V2 & SCOOVO_X9H
+ *    M909, M910 & LCD - only PRINTRBOARD_REVF & RIGIDBOARD_V2
+ */
 //#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps
-
-// uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
-//#define DIGIPOT_I2C
-// Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8
-#define DIGIPOT_I2C_NUM_CHANNELS 8
-// actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS
-#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}
+//#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
+//#define DAC_STEPPER_DFLT { 70, 80, 90, 80 } // Default drive percent - X, Y, Z, E axis
+
+/*  5DPRINT & AZTEEG_X3_PRO */
+//#define DIGIPOT_I2C  // uncomment to enable
+#define DIGIPOT_I2C_NUM_CHANNELS 8 // 5DPRINT: 4     AZTEEG_X3_PRO: 8
+/* actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS */
+#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}  //  AZTEEG_X3_PRO
 
 //===========================================================================
 //=============================Additional Features===========================

Marlin/example_configurations/delta/flsun_kossel_mini/Configuration_adv.h

 // Microstep setting (Only functional when stepper driver microstep pins are connected to MCU.
 #define MICROSTEP_MODES {16,16,16,16,16} // [1,2,4,8,16]
 
-// Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
-#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
-
-// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)
+/**
+ *  @section  stepper motor current
+ *
+ *  Some boards have a means of setting the stepper motor current via firmware.
+ *
+ *  The power on motor currents are set by:
+ *    PWM_MOTOR_CURRENT - used by MINIRAMBO & ULTIMAIN_2
+ *                         known compatible chips: A4982
+ *    DIGIPOT_MOTOR_CURRENT - used by BQ_ZUM_MEGA_3D, RAMBO & SCOOVO_X9H
+ *                         known compatible chips: AD5206
+ *    DAC_MOTOR_CURRENT_DEFAULT - used by PRINTRBOARD_REVF & RIGIDBOARD_V2
+ *                         known compatible chips: MCP4728
+ *    DIGIPOT_I2C_MOTOR_CURRENTS - used by 5DPRINT & AZTEEG_X3_PRO
+ *                         known compatible chips: MCP4451
+ *
+ *  Motor currents can also be set by M907 - M910 and by the LCD.
+ *    M907 - applies to all.
+ *    M908 - BQ_ZUM_MEGA_3D, RAMBO, PRINTRBOARD_REVF, RIGIDBOARD_V2 & SCOOVO_X9H
+ *    M909, M910 & LCD - only PRINTRBOARD_REVF & RIGIDBOARD_V2
+ */
 //#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps
-
-// uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
-//#define DIGIPOT_I2C
-// Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8
-#define DIGIPOT_I2C_NUM_CHANNELS 8
-// actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS
-#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}
+//#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
+//#define DAC_STEPPER_DFLT { 70, 80, 90, 80 } // Default drive percent - X, Y, Z, E axis
+
+/*  5DPRINT & AZTEEG_X3_PRO */
+//#define DIGIPOT_I2C  // uncomment to enable
+#define DIGIPOT_I2C_NUM_CHANNELS 8 // 5DPRINT: 4     AZTEEG_X3_PRO: 8
+/* actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS */
+#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}  //  AZTEEG_X3_PRO
 
 //===========================================================================
 //=============================Additional Features===========================

Marlin/example_configurations/delta/generic/Configuration_adv.h

 // Microstep setting (Only functional when stepper driver microstep pins are connected to MCU.
 #define MICROSTEP_MODES {16,16,16,16,16} // [1,2,4,8,16]
 
-// Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
-#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
-
-// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)
+/**
+ *  @section  stepper motor current
+ *
+ *  Some boards have a means of setting the stepper motor current via firmware.
+ *
+ *  The power on motor currents are set by:
+ *    PWM_MOTOR_CURRENT - used by MINIRAMBO & ULTIMAIN_2
+ *                         known compatible chips: A4982
+ *    DIGIPOT_MOTOR_CURRENT - used by BQ_ZUM_MEGA_3D, RAMBO & SCOOVO_X9H
+ *                         known compatible chips: AD5206
+ *    DAC_MOTOR_CURRENT_DEFAULT - used by PRINTRBOARD_REVF & RIGIDBOARD_V2
+ *                         known compatible chips: MCP4728
+ *    DIGIPOT_I2C_MOTOR_CURRENTS - used by 5DPRINT & AZTEEG_X3_PRO
+ *                         known compatible chips: MCP4451
+ *
+ *  Motor currents can also be set by M907 - M910 and by the LCD.
+ *    M907 - applies to all.
+ *    M908 - BQ_ZUM_MEGA_3D, RAMBO, PRINTRBOARD_REVF, RIGIDBOARD_V2 & SCOOVO_X9H
+ *    M909, M910 & LCD - only PRINTRBOARD_REVF & RIGIDBOARD_V2
+ */
 //#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps
-
-// uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
-//#define DIGIPOT_I2C
-// Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8
-#define DIGIPOT_I2C_NUM_CHANNELS 8
-// actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS
-#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}
+//#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
+//#define DAC_STEPPER_DFLT { 70, 80, 90, 80 } // Default drive percent - X, Y, Z, E axis
+
+/*  5DPRINT & AZTEEG_X3_PRO */
+//#define DIGIPOT_I2C  // uncomment to enable
+#define DIGIPOT_I2C_NUM_CHANNELS 8 // 5DPRINT: 4     AZTEEG_X3_PRO: 8
+/* actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS */
+#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}  //  AZTEEG_X3_PRO
 
 //===========================================================================
 //=============================Additional Features===========================

Marlin/example_configurations/delta/kossel_mini/Configuration_adv.h

 // Microstep setting (Only functional when stepper driver microstep pins are connected to MCU.
 #define MICROSTEP_MODES {16,16,16,16,16} // [1,2,4,8,16]
 
-// Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
-#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
-
-// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)
+/**
+ *  @section  stepper motor current
+ *
+ *  Some boards have a means of setting the stepper motor current via firmware.
+ *
+ *  The power on motor currents are set by:
+ *    PWM_MOTOR_CURRENT - used by MINIRAMBO & ULTIMAIN_2
+ *                         known compatible chips: A4982
+ *    DIGIPOT_MOTOR_CURRENT - used by BQ_ZUM_MEGA_3D, RAMBO & SCOOVO_X9H
+ *                         known compatible chips: AD5206
+ *    DAC_MOTOR_CURRENT_DEFAULT - used by PRINTRBOARD_REVF & RIGIDBOARD_V2
+ *                         known compatible chips: MCP4728
+ *    DIGIPOT_I2C_MOTOR_CURRENTS - used by 5DPRINT & AZTEEG_X3_PRO
+ *                         known compatible chips: MCP4451
+ *
+ *  Motor currents can also be set by M907 - M910 and by the LCD.
+ *    M907 - applies to all.
+ *    M908 - BQ_ZUM_MEGA_3D, RAMBO, PRINTRBOARD_REVF, RIGIDBOARD_V2 & SCOOVO_X9H
+ *    M909, M910 & LCD - only PRINTRBOARD_REVF & RIGIDBOARD_V2
+ */
 //#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps
-
-// uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
-//#define DIGIPOT_I2C
-// Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8
-#define DIGIPOT_I2C_NUM_CHANNELS 8
-// actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS
-#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}
+//#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
+//#define DAC_STEPPER_DFLT { 70, 80, 90, 80 } // Default drive percent - X, Y, Z, E axis
+
+/*  5DPRINT & AZTEEG_X3_PRO */
+//#define DIGIPOT_I2C  // uncomment to enable
+#define DIGIPOT_I2C_NUM_CHANNELS 8 // 5DPRINT: 4     AZTEEG_X3_PRO: 8
+/* actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS */
+#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}  //  AZTEEG_X3_PRO
 
 //===========================================================================
 //=============================Additional Features===========================

Marlin/example_configurations/delta/kossel_pro/Configuration_adv.h

 // Microstep setting (Only functional when stepper driver microstep pins are connected to MCU.
 #define MICROSTEP_MODES {16,16,16,16,16} // [1,2,4,8,16]
 
-// Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
-#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
-
-// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)
+/**
+ *  @section  stepper motor current
+ *
+ *  Some boards have a means of setting the stepper motor current via firmware.
+ *
+ *  The power on motor currents are set by:
+ *    PWM_MOTOR_CURRENT - used by MINIRAMBO & ULTIMAIN_2
+ *                         known compatible chips: A4982
+ *    DIGIPOT_MOTOR_CURRENT - used by BQ_ZUM_MEGA_3D, RAMBO & SCOOVO_X9H
+ *                         known compatible chips: AD5206
+ *    DAC_MOTOR_CURRENT_DEFAULT - used by PRINTRBOARD_REVF & RIGIDBOARD_V2
+ *                         known compatible chips: MCP4728
+ *    DIGIPOT_I2C_MOTOR_CURRENTS - used by 5DPRINT & AZTEEG_X3_PRO
+ *                         known compatible chips: MCP4451
+ *
+ *  Motor currents can also be set by M907 - M910 and by the LCD.
+ *    M907 - applies to all.
+ *    M908 - BQ_ZUM_MEGA_3D, RAMBO, PRINTRBOARD_REVF, RIGIDBOARD_V2 & SCOOVO_X9H
+ *    M909, M910 & LCD - only PRINTRBOARD_REVF & RIGIDBOARD_V2
+ */
 //#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps
-
-// uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
-//#define DIGIPOT_I2C
-// Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8
-#define DIGIPOT_I2C_NUM_CHANNELS 8
-// actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS
-#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}
+//#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
+//#define DAC_STEPPER_DFLT { 70, 80, 90, 80 } // Default drive percent - X, Y, Z, E axis
+
+/*  5DPRINT & AZTEEG_X3_PRO */
+//#define DIGIPOT_I2C  // uncomment to enable
+#define DIGIPOT_I2C_NUM_CHANNELS 8 // 5DPRINT: 4     AZTEEG_X3_PRO: 8
+/* actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS */
+#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}  //  AZTEEG_X3_PRO
 
 //===========================================================================
 //=============================Additional Features===========================

Marlin/example_configurations/delta/kossel_xl/Configuration_adv.h

 // Microstep setting (Only functional when stepper driver microstep pins are connected to MCU.
 #define MICROSTEP_MODES {16,16,16,16,16} // [1,2,4,8,16]
 
-// Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
-#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
-
-// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)
+/**
+ *  @section  stepper motor current
+ *
+ *  Some boards have a means of setting the stepper motor current via firmware.
+ *
+ *  The power on motor currents are set by:
+ *    PWM_MOTOR_CURRENT - used by MINIRAMBO & ULTIMAIN_2
+ *                         known compatible chips: A4982
+ *    DIGIPOT_MOTOR_CURRENT - used by BQ_ZUM_MEGA_3D, RAMBO & SCOOVO_X9H
+ *                         known compatible chips: AD5206
+ *    DAC_MOTOR_CURRENT_DEFAULT - used by PRINTRBOARD_REVF & RIGIDBOARD_V2
+ *                         known compatible chips: MCP4728
+ *    DIGIPOT_I2C_MOTOR_CURRENTS - used by 5DPRINT & AZTEEG_X3_PRO
+ *                         known compatible chips: MCP4451
+ *
+ *  Motor currents can also be set by M907 - M910 and by the LCD.
+ *    M907 - applies to all.
+ *    M908 - BQ_ZUM_MEGA_3D, RAMBO, PRINTRBOARD_REVF, RIGIDBOARD_V2 & SCOOVO_X9H
+ *    M909, M910 & LCD - only PRINTRBOARD_REVF & RIGIDBOARD_V2
+ */
 //#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps
-
-// uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
-//#define DIGIPOT_I2C
-// Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8
-#define DIGIPOT_I2C_NUM_CHANNELS 8
-// actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS
-#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}
+//#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
+//#define DAC_STEPPER_DFLT { 70, 80, 90, 80 } // Default drive percent - X, Y, Z, E axis
+
+/*  5DPRINT & AZTEEG_X3_PRO */
+//#define DIGIPOT_I2C  // uncomment to enable
+#define DIGIPOT_I2C_NUM_CHANNELS 8 // 5DPRINT: 4     AZTEEG_X3_PRO: 8
+/* actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS */
+#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}  //  AZTEEG_X3_PRO
 
 //===========================================================================
 //=============================Additional Features===========================

Marlin/example_configurations/makibox/Configuration_adv.h

 // Microstep setting (Only functional when stepper driver microstep pins are connected to MCU.
 #define MICROSTEP_MODES {16,16,16,16,16} // [1,2,4,8,16]
 
-// Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
-#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
-
-// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)
+/**
+ *  @section  stepper motor current
+ *
+ *  Some boards have a means of setting the stepper motor current via firmware.
+ *
+ *  The power on motor currents are set by:
+ *    PWM_MOTOR_CURRENT - used by MINIRAMBO & ULTIMAIN_2
+ *                         known compatible chips: A4982
+ *    DIGIPOT_MOTOR_CURRENT - used by BQ_ZUM_MEGA_3D, RAMBO & SCOOVO_X9H
+ *                         known compatible chips: AD5206
+ *    DAC_MOTOR_CURRENT_DEFAULT - used by PRINTRBOARD_REVF & RIGIDBOARD_V2
+ *                         known compatible chips: MCP4728
+ *    DIGIPOT_I2C_MOTOR_CURRENTS - used by 5DPRINT & AZTEEG_X3_PRO
+ *                         known compatible chips: MCP4451
+ *
+ *  Motor currents can also be set by M907 - M910 and by the LCD.
+ *    M907 - applies to all.
+ *    M908 - BQ_ZUM_MEGA_3D, RAMBO, PRINTRBOARD_REVF, RIGIDBOARD_V2 & SCOOVO_X9H
+ *    M909, M910 & LCD - only PRINTRBOARD_REVF & RIGIDBOARD_V2
+ */
 //#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps
+//#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
+//#define DAC_STEPPER_DFLT { 70, 80, 90, 80 } // Default drive percent - X, Y, Z, E axis
 
-// uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
-//#define DIGIPOT_I2C
-// Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8
-#define DIGIPOT_I2C_NUM_CHANNELS 4
+/*  5DPRINT & AZTEEG_X3_PRO */
+//#define DIGIPOT_I2C  // uncomment to enable
+#define DIGIPOT_I2C_NUM_CHANNELS 4 // 5DPRINT: 4     AZTEEG_X3_PRO: 8
 // actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS
-#define DIGIPOT_I2C_MOTOR_CURRENTS { 1.7, 1.7, 1.7, 1.7 }
+#define DIGIPOT_I2C_MOTOR_CURRENTS { 1.7, 1.7, 1.7, 1.7 }  // 5DPRINT
 
 //===========================================================================
 //=============================Additional Features===========================

Marlin/example_configurations/tvrrug/Round2/Configuration_adv.h

 // Microstep setting (Only functional when stepper driver microstep pins are connected to MCU.
 #define MICROSTEP_MODES {16,16,16,16,16} // [1,2,4,8,16]
 
-// Motor Current setting (Only functional when motor driver current ref pins are connected to a digital trimpot on supported boards)
-#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
-
-// Motor Current controlled via PWM (Overridable on supported boards with PWM-driven motor driver current)
+/**
+ *  @section  stepper motor current
+ *
+ *  Some boards have a means of setting the stepper motor current via firmware.
+ *
+ *  The power on motor currents are set by:
+ *    PWM_MOTOR_CURRENT - used by MINIRAMBO & ULTIMAIN_2
+ *                         known compatible chips: A4982
+ *    DIGIPOT_MOTOR_CURRENT - used by BQ_ZUM_MEGA_3D, RAMBO & SCOOVO_X9H
+ *                         known compatible chips: AD5206
+ *    DAC_MOTOR_CURRENT_DEFAULT - used by PRINTRBOARD_REVF & RIGIDBOARD_V2
+ *                         known compatible chips: MCP4728
+ *    DIGIPOT_I2C_MOTOR_CURRENTS - used by 5DPRINT & AZTEEG_X3_PRO
+ *                         known compatible chips: MCP4451
+ *
+ *  Motor currents can also be set by M907 - M910 and by the LCD.
+ *    M907 - applies to all.
+ *    M908 - BQ_ZUM_MEGA_3D, RAMBO, PRINTRBOARD_REVF, RIGIDBOARD_V2 & SCOOVO_X9H
+ *    M909, M910 & LCD - only PRINTRBOARD_REVF & RIGIDBOARD_V2
+ */
 //#define PWM_MOTOR_CURRENT {1300, 1300, 1250} // Values in milliamps
-
-// uncomment to enable an I2C based DIGIPOT like on the Azteeg X3 Pro
-//#define DIGIPOT_I2C
-// Number of channels available for I2C digipot, For Azteeg X3 Pro we have 8
-#define DIGIPOT_I2C_NUM_CHANNELS 8
-// actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS
-#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}
+//#define DIGIPOT_MOTOR_CURRENT {135,135,135,135,135} // Values 0-255 (RAMBO 135 = ~0.75A, 185 = ~1A)
+//#define DAC_STEPPER_DFLT { 70, 80, 90, 80 } // Default drive percent - X, Y, Z, E axis
+
+/*  5DPRINT & AZTEEG_X3_PRO */
+//#define DIGIPOT_I2C  // uncomment to enable
+#define DIGIPOT_I2C_NUM_CHANNELS 8 // 5DPRINT: 4     AZTEEG_X3_PRO: 8
+/* actual motor currents in Amps, need as many here as DIGIPOT_I2C_NUM_CHANNELS */
+#define DIGIPOT_I2C_MOTOR_CURRENTS {1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0}  //  AZTEEG_X3_PRO
 
 //===========================================================================
 //=============================Additional Features===========================

Marlin/pins_RIGIDBOARD_V2.h

 #define DAC_STEPPER_GAIN     1 // value of 1 here sets gain of 2
 #define DAC_DISABLE_PIN     42 // set low to enable DAC
 #define DAC_OR_ADDRESS    0x01
-#define DAC_STEPPER_DFLT { 70, 80, 90, 80 } // Default values for drive strength percent

Marlin/stepper_dac.cpp

 
   bool dac_present = false;
   const uint8_t dac_order[NUM_AXIS] = DAC_STEPPER_ORDER;
-  uint16_t dac_channel_pct[XYZE] = DAC_STEPPER_DFLT;
+  uint16_t dac_channel_pct[XYZE] = DAC_MOTOR_CURRENT_DEFAULT;
 
   int dac_init() {
     #if PIN_EXISTS(DAC_DISABLE)

Marlin/ultralcd.cpp

 
 #if ENABLED(DAC_STEPPER_CURRENT)
   #include "stepper_dac.h" //was dac_mcp4728.h MarlinMain uses stepper dac for the m-codes
-  uint16_t driverPercent[XYZE];
+  int16_t driverPercent[XYZE];
 #endif
 
 #if ENABLED(ULTIPANEL)