Fix and optimize MightyBoard (MarlinFirmware#20493)

Author: grauerfuchs

Marlin/Configuration_adv.h

@@ -1015,7 +1015,7 @@
 /**
  * I2C-based DIGIPOTs (e.g., Azteeg X3 Pro)
  */
-//#define DIGIPOT_MCP4018             // Requires https://github.com/stawel/SlowSoftI2CMaster
+//#define DIGIPOT_MCP4018             // Requires https://github.com/felias-fogg/SlowSoftI2CMaster
 //#define DIGIPOT_MCP4451
 #if EITHER(DIGIPOT_MCP4018, DIGIPOT_MCP4451)
   #define DIGIPOT_I2C_NUM_CHANNELS 8  // 5DPRINT:4   AZTEEG_X3_PRO:8   MKS_SBASE:5   MIGHTYBOARD_REVE:5

Marlin/src/feature/digipot/digipot_mcp4018.cpp

@@ -27,7 +27,7 @@
 #include "digipot.h"
 
 #include <Stream.h>
-#include <SlowSoftI2CMaster.h>  // https://github.com/stawel/SlowSoftI2CMaster
+#include <SlowSoftI2CMaster.h>  // https://github.com/felias-fogg/SlowSoftI2CMaster
 
 // Settings for the I2C based DIGIPOT (MCP4018) based on WT150
 
@@ -46,21 +46,21 @@ static byte current_to_wiper(const float current) {
 }
 
 static SlowSoftI2CMaster pots[DIGIPOT_I2C_NUM_CHANNELS] = {
-  SlowSoftI2CMaster(DIGIPOTS_I2C_SDA_X, DIGIPOTS_I2C_SCL)
+  SlowSoftI2CMaster(DIGIPOTS_I2C_SDA_X, DIGIPOTS_I2C_SCL, ENABLED(DIGIPOT_ENABLE_I2C_PULLUPS))
   #if DIGIPOT_I2C_NUM_CHANNELS > 1
-    , SlowSoftI2CMaster(DIGIPOTS_I2C_SDA_Y, DIGIPOTS_I2C_SCL)
+    , SlowSoftI2CMaster(DIGIPOTS_I2C_SDA_Y, DIGIPOTS_I2C_SCL, ENABLED(DIGIPOT_ENABLE_I2C_PULLUPS))
     #if DIGIPOT_I2C_NUM_CHANNELS > 2
-      , SlowSoftI2CMaster(DIGIPOTS_I2C_SDA_Z, DIGIPOTS_I2C_SCL)
+      , SlowSoftI2CMaster(DIGIPOTS_I2C_SDA_Z, DIGIPOTS_I2C_SCL, ENABLED(DIGIPOT_ENABLE_I2C_PULLUPS))
       #if DIGIPOT_I2C_NUM_CHANNELS > 3
-        , SlowSoftI2CMaster(DIGIPOTS_I2C_SDA_E0, DIGIPOTS_I2C_SCL)
+        , SlowSoftI2CMaster(DIGIPOTS_I2C_SDA_E0, DIGIPOTS_I2C_SCL, ENABLED(DIGIPOT_ENABLE_I2C_PULLUPS))
         #if DIGIPOT_I2C_NUM_CHANNELS > 4
-          , SlowSoftI2CMaster(DIGIPOTS_I2C_SDA_E1, DIGIPOTS_I2C_SCL)
+          , SlowSoftI2CMaster(DIGIPOTS_I2C_SDA_E1, DIGIPOTS_I2C_SCL, ENABLED(DIGIPOT_ENABLE_I2C_PULLUPS))
           #if DIGIPOT_I2C_NUM_CHANNELS > 5
-            , SlowSoftI2CMaster(DIGIPOTS_I2C_SDA_E2, DIGIPOTS_I2C_SCL)
+            , SlowSoftI2CMaster(DIGIPOTS_I2C_SDA_E2, DIGIPOTS_I2C_SCL, ENABLED(DIGIPOT_ENABLE_I2C_PULLUPS))
             #if DIGIPOT_I2C_NUM_CHANNELS > 6
-              , SlowSoftI2CMaster(DIGIPOTS_I2C_SDA_E3, DIGIPOTS_I2C_SCL)
+              , SlowSoftI2CMaster(DIGIPOTS_I2C_SDA_E3, DIGIPOTS_I2C_SCL, ENABLED(DIGIPOT_ENABLE_I2C_PULLUPS))
               #if DIGIPOT_I2C_NUM_CHANNELS > 7
-                , SlowSoftI2CMaster(DIGIPOTS_I2C_SDA_E4, DIGIPOTS_I2C_SCL)
+                , SlowSoftI2CMaster(DIGIPOTS_I2C_SDA_E4, DIGIPOTS_I2C_SCL, ENABLED(DIGIPOT_ENABLE_I2C_PULLUPS))
               #endif
             #endif
           #endif

Marlin/src/pins/mega/pins_MIGHTYBOARD_REVE.h

@@ -118,6 +118,7 @@
 #ifndef DIGIPOT_I2C_ADDRESS_A
   #define DIGIPOT_I2C_ADDRESS_A             0x2F  // unshifted slave address (5E <- 2F << 1)
 #endif
+#define DIGIPOT_ENABLE_I2C_PULLUPS                // MightyBoard doesn't have hardware I2C pin pull-ups.
 
 //
 // Temperature Sensors