🩹 Update Creality CR4NS

Followup to #27003

Author: thinkyhead

Marlin/src/pins/stm32f1/pins_CREALITY_CR4NS.h

@@ -62,6 +62,8 @@
 //
 // Limit Switches
 //
+#define X_DIAG_PIN                          PB10
+#define Y_DIAG_PIN                          PB11
 #ifndef Z_STOP_PIN
   #define Z_STOP_PIN                        PC14
 #endif
@@ -79,23 +81,19 @@
 #define HEATER_BED_PIN                      PB2   // HOT BED
 #define FAN1_PIN                            PC1   // extruder fan
 
-//
-// Steppers
-//
-#if HAS_TMC_UART
-
-  // Reduce baud rate to improve software serial reliability
-  #define TMC_BAUD_RATE 19200
 
+#if HAS_TMC_UART
   // Software serial
   #define X_SERIAL_TX_PIN                   PB12
-  #define X_DIAG_PIN                        PB10
-
   #define Y_SERIAL_TX_PIN                   PB13
-  #define Y_DIAG_PIN                        PB11
-
   #define Z_SERIAL_TX_PIN                   PB14
-#endif // HAS_TMC_UART
+  #define E0_SERIAL_TX_PIN                  PB15
+
+  // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
+    #define TMC_BAUD_RATE                  19200
+  #endif
+#endif
 
 //
 // SD Card