Consolidate setting of RAMPS High Voltage PWM outputs

Marlin/pins_AZTEEG_X3.h

@@ -24,9 +24,13 @@
  * AZTEEG_X3 Arduino Mega with RAMPS v1.4 pin assignments
  */
 
+#if HOTENDS > 2
+  #error "Azteeg X3 supports up to 2 hotends. Comment this line to keep going."
+#endif
+
 #define BOARD_NAME "Azteeg X3"
 
-#include "pins_RAMPS_14_EFB.h"
+#include "pins_RAMPS_14.h"
 
 #if ENABLED(VIKI2) || ENABLED(miniVIKI)
 

Marlin/pins_BAM_DICE_DUE.h

@@ -24,9 +24,13 @@
  * BAM&DICE Due (Arduino Mega) pin assignments
  */
 
+#if HOTENDS > 2
+  #error "2PrintBeta Due supports up to 2 hotends. Comment this line to keep going."
+#endif
+
 #define BOARD_NAME "2PrintBeta Due"
 
-#include "pins_RAMPS_14_EFB.h"
+#include "pins_RAMPS_14.h"
 
 #undef TEMP_0_PIN
 #undef TEMP_1_PIN

Marlin/pins_FELIX2.h

@@ -24,12 +24,15 @@
  * FELIXprinters v2.0/3.0 (RAMPS v1.4) pin assignments
  */
 
+#if HOTENDS > 2
+  #error "Felix 2.0+ supports up to 2 hotends. Comment this line to keep going."
+#endif
+
 #define BOARD_NAME "Felix 2.0+"
 
-#include "pins_RAMPS_14_EFB.h"
+#define HI_VOLT_PIN_D 7
 
-#undef HEATER_1_PIN
+#include "pins_RAMPS_14_EFB.h"
-#define HEATER_1_PIN        7 // EXTRUDER 2
 
 #undef SDPOWER
 #define SDPOWER             1

Marlin/pins_MKS_13.h

@@ -29,12 +29,15 @@
  *  MKS v1.4  (Extruder, Extruder, Fan, Bed)
  */
 
+#if HOTENDS > 2
+  #error "MKS 1.3/1.4 supports up to 2 hotends. Comment this line to keep going."
+#endif
+
 #define BOARD_NAME "MKS > v1.3"
 
-#include "pins_RAMPS_14_EFB.h"
+#define HI_VOLT_PIN_D 7
 
-#undef HEATER_1_PIN
+#include "pins_RAMPS_14_EFB.h"
-#define HEATER_1_PIN        7 // EXTRUDER 2 (-1 on RAMPS 1.4)
 
 #if ENABLED(VIKI2) || ENABLED(miniVIKI)
   /**

Marlin/pins_MKS_BASE.h

@@ -24,9 +24,12 @@
  * MKS BASE 1.0 – Arduino Mega2560 with RAMPS v1.4 pin assignments
  */
 
+#if HOTENDS > 2
+  #error "MKS BASE 1.0 supports up to 2 hotends. Comment this line to keep going."
+#endif
+
 #define BOARD_NAME "MKS BASE 1.0"
 
-#include "pins_RAMPS_14_EFB.h"
+#define HI_VOLT_PIN_D 7
 
-#undef HEATER_1_PIN
+#include "pins_RAMPS_14_EFB.h"
-#define HEATER_1_PIN        7

Marlin/pins_RAMPS_14.h

@@ -105,32 +105,7 @@
 // define digital pin 4 for the filament runout sensor. Use the RAMPS 1.4 digital input 4 on the servos connector
 #define FIL_RUNOUT_PIN      4
 
-#if MB(RAMPS_14_EFF) || MB(RAMPS_13_EFF) || ENABLED(IS_RAMPS_EFB)
-  #define FAN_PIN           9 // (Sprinter config)
-  #if MB(RAMPS_14_EFF) || MB(RAMPS_13_EFF)
-    #define CONTROLLERFAN_PIN  -1 // Pin used for the fan to cool controller
-  #endif
-#elif MB(RAMPS_14_EEF) || MB(RAMPS_14_SF) || MB(RAMPS_13_EEF) || MB(RAMPS_13_SF)
-  #define FAN_PIN           8
-#else
-  #define FAN_PIN           4 // IO pin. Buffer needed
-#endif
-
 #define PS_ON_PIN          12
-
-#if MB(RAMPS_14_EFF) || MB(RAMPS_13_EFF)
-  #define HEATER_0_PIN      8
-#else
-  #define HEATER_0_PIN     10   // EXTRUDER 1
-  #if !MB(RAMPS_14_EEF) && !MB(RAMPS_13_EEF) && !MB(RAMPS_14_SF) && !MB(RAMPS_13_SF)
-    #define HEATER_BED_PIN    8    // BED
-  #endif
-#endif
-
-#if !MB(RAMPS_14_SF) && !MB(RAMPS_13_SF) && !ENABLED(IS_RAMPS_EFB)
-  #define HEATER_1_PIN      9   // EXTRUDER 2 (FAN On Sprinter)
-#endif
-
 #define TEMP_0_PIN         13   // ANALOG NUMBERING
 #define TEMP_1_PIN         15   // ANALOG NUMBERING
 #define TEMP_BED_PIN       14   // ANALOG NUMBERING
@@ -139,6 +114,56 @@
   #define SLED_PIN           -1
 #endif
 
+
+/**
+ * Hi Voltage PWM Pin Assignments
+ */
+
+#ifndef HI_VOLT_PIN_D
+  #define HI_VOLT_PIN_D  -1
+#endif
+#ifndef HI_VOLT_PIN_C
+  #define HI_VOLT_PIN_C  8
+#endif
+#ifndef HI_VOLT_PIN_B
+  #define HI_VOLT_PIN_B  9
+#endif
+#ifndef HI_VOLT_PIN_A
+  #define HI_VOLT_PIN_A 10
+#endif
+
+#if ENABLED(IS_RAMPS_EFB)                   // Hotend, Fan, Bed
+  #define HEATER_0_PIN   HI_VOLT_PIN_A
+  #define FAN_PIN        HI_VOLT_PIN_B
+  #define HEATER_BED_PIN HI_VOLT_PIN_C
+  #if EXTRUDERS == 1
+    #define FAN1_PIN     HI_VOLT_PIN_D
+  #else
+    #define HEATER_1_PIN HI_VOLT_PIN_D
+  #endif
+#elif MB(RAMPS_13_EEF) || MB(RAMPS_14_EEF)  // Hotend, Hotend, Fan
+  #define HEATER_0_PIN   HI_VOLT_PIN_A
+  #define HEATER_1_PIN   HI_VOLT_PIN_B
+  #define FAN_PIN        HI_VOLT_PIN_C
+#elif MB(RAMPS_13_EEB) || MB(RAMPS_14_EEB)  // Hotend, Hotend, Bed
+  #define HEATER_0_PIN   HI_VOLT_PIN_A
+  #define HEATER_1_PIN   HI_VOLT_PIN_B
+  #define HEATER_BED_PIN HI_VOLT_PIN_C
+  #define FAN_PIN 4 // IO pin. Buffer needed
+#elif MB(RAMPS_13_EFF) || MB(RAMPS_14_EFF)  // Hotend, Fan, Fan (EFF is reversed?)
+  #define HEATER_0_PIN   HI_VOLT_PIN_C
+  #define FAN_PIN        HI_VOLT_PIN_B
+  #define FAN1_PIN       HI_VOLT_PIN_A
+  #define CONTROLLERFAN_PIN  -1
+#elif MB(RAMPS_13_SF) || MB(RAMPS_14_SF)    // Spindle, Fan
+  #define FAN_PIN        HI_VOLT_PIN_C
+#endif
+
+
+/**
+ * LCD Controller Pin Assignments
+ */
+
 #if ENABLED(ULTRA_LCD)
 
   #if ENABLED(REPRAPWORLD_GRAPHICAL_LCD)
@@ -301,4 +326,3 @@
 #else
   #define MAX6675_SS       66 // Do not use pin 49 as this is tied to the switch inside the SD card socket to detect if there is an SD card present
 #endif
-

Marlin/pins_SAINSMART_2IN1.h

@@ -24,16 +24,14 @@
  *  Sainsmart 2-in-1 pin assignments
  */
 
+#if HOTENDS > 2
+  #error "Sainsmart 2-in-1 supports up to 2 hotends. Comment this line to keep going."
+#endif
+
+#define BOARD_NAME "Sainsmart"
+
+#define HI_VOLT_PIN_A  9
+#define HI_VOLT_PIN_B  7 // PART FAN in front of board next to Extruder heat
+#define HI_VOLT_PIN_D 10
+
 #include "pins_RAMPS_14_EFB.h"
-
-#undef BOARD_NAME
-#define BOARD_NAME          "Sainsmart"
-
-#undef FAN_PIN
-#define FAN_PIN             7 // PART FAN in front of board next to Extruder heat
-
-#undef HEATER_0_PIN
-#define HEATER_0_PIN        9   // EXTRUDER 1
-
-#undef HEATER_1_PIN
-#define HEATER_1_PIN       10   // EXTRUDER 2