Prusa MMU2 (#12967)

Marlin/Configuration_adv.h

@@ -1463,7 +1463,7 @@
    * Define you own with
    * { <off_time[1..15]>, <hysteresis_end[-3..12]>, hysteresis_start[1..8] }
    */
-  #define CHOPPER_TIMING CHOPPER_DEFAULT_12V
+  #define CHOPPER_TIMING { 4, -2, 1 }
 
   /**
    * Monitor Trinamic TMC2130 and TMC2208 drivers for error conditions,
@@ -2104,6 +2104,59 @@
   #define WIFI_PWD  "Wifi Password"
 #endif
 
+/**
+ * Prusa Multi-Material Unit v2
+ * Enable in Configuration.h
+ */
+#if ENABLED(PRUSA_MMU2)
+
+  // Serial port used for communication with MMU2.
+  // For AVR enable the UART port used for the MMU. (e.g., internalSerial)
+  // For 32-bit boards check your HAL for available serial ports. (e.g., Serial2)
+  #define INTERNAL_SERIAL_PORT 2
+  #define MMU2_SERIAL internalSerial
+
+  // Use hardware reset for MMU if a pin is defined for it
+  //#define MMU2_RST_PIN 23
+
+  // Enable if the MMU2 has 12V stepper motors (MMU2 Firmware 1.0.2 and up)
+  //#define MMU2_MODE_12V
+
+  // G-code to execute when MMU2 F.I.N.D.A. probe detects filament runout
+  #define MMU2_FILAMENT_RUNOUT_SCRIPT "M600"
+
+  // Add an LCD menu for MMU2
+  //#define MMU2_MENUS
+  #if ENABLED(MMU2_MENUS)
+    // Settings for filament load / unload from the LCD menu.
+    // This is for Prusa MK3-style extruders. Customize for your hardware.
+    #define MMU2_FILAMENTCHANGE_EJECT_FEED 80.0
+    #define MMU2_LOAD_TO_NOZZLE_SEQUENCE \
+      {  7.2,  562 }, \
+      { 14.4,  871 }, \
+      { 36.0, 1393 }, \
+      { 14.4,  871 }, \
+      { 50.0,  198 }
+
+    #define MMU2_RAMMING_SEQUENCE \
+      {   1.0, 1000 }, \
+      {   1.0, 1500 }, \
+      {   2.0, 2000 }, \
+      {   1.5, 3000 }, \
+      {   2.5, 4000 }, \
+      { -15.0, 5000 }, \
+      { -14.0, 1200 }, \
+      {  -6.0,  600 }, \
+      {  10.0,  700 }, \
+      { -10.0,  400 }, \
+      { -50.0, 2000 }
+
+  #endif
+
+  //#define MMU2_DEBUG  // Write debug info to serial output
+
+#endif // PRUSA_MMU2
+
 // @section develop
 
 /**