🔧 Malyan M300 / Monoprice Mini alternate orientation (#27808)

Author: thisiskeithb

Marlin/src/pins/stm32f0/pins_MALYAN_M300.h

@@ -46,9 +46,15 @@
 //
 // Limit Switches
 //
-#define X_STOP_PIN                          PC13
-#define Y_STOP_PIN                          PC14
-#define Z_STOP_PIN                          PC15
+#if ENABLED(M300_ROTATE_TOWERS)
+  #define X_STOP_PIN                        PC14
+  #define Y_STOP_PIN                        PC15
+  #define Z_STOP_PIN                        PC13
+#else
+  #define X_STOP_PIN                        PC13
+  #define Y_STOP_PIN                        PC14
+  #define Z_STOP_PIN                        PC15
+#endif
 
 #ifndef Z_MIN_PROBE_PIN
   #define Z_MIN_PROBE_PIN                   PB7
@@ -57,17 +63,31 @@
 //
 // Steppers
 //
-#define X_STEP_PIN                          PB14
-#define X_DIR_PIN                           PB13
-#define X_ENABLE_PIN                        PB10
+#if ENABLED(M300_ROTATE_TOWERS)
+  #define X_STEP_PIN                        PB12
+  #define X_DIR_PIN                         PB11
+  #define X_ENABLE_PIN                      PB10
+
+  #define Y_STEP_PIN                        PB2
+  #define Y_DIR_PIN                         PB1
+  #define Y_ENABLE_PIN                      PB10
 
-#define Y_STEP_PIN                          PB12
-#define Y_DIR_PIN                           PB11
-#define Y_ENABLE_PIN                        PB10
+  #define Z_STEP_PIN                        PB14
+  #define Z_DIR_PIN                         PB13
+  #define Z_ENABLE_PIN                      PB10
+#else
+  #define X_STEP_PIN                        PB14
+  #define X_DIR_PIN                         PB13
+  #define X_ENABLE_PIN                      PB10
 
-#define Z_STEP_PIN                          PB2
-#define Z_DIR_PIN                           PB1
-#define Z_ENABLE_PIN                        PB10
+  #define Y_STEP_PIN                        PB12
+  #define Y_DIR_PIN                         PB11
+  #define Y_ENABLE_PIN                      PB10
+
+  #define Z_STEP_PIN                        PB2
+  #define Z_DIR_PIN                         PB1
+  #define Z_ENABLE_PIN                      PB10
+#endif
 
 #define E0_STEP_PIN                         PA7
 #define E0_DIR_PIN                          PA6