🔧 Allow TMC_BAUD_RATE override

Marlin/src/pins/esp32/pins_ENWI_ESPNP.h

@@ -91,7 +91,9 @@
 #define K_CS_PIN                             159
 
 // Reduce baud rate to improve software serial reliability
+#ifndef TMC_BAUD_RATE
   #define TMC_BAUD_RATE                    19200
+#endif
 
 //
 // Temperature Sensors

Marlin/src/pins/gd32f1/pins_SOVOL_V131.h

@@ -63,7 +63,9 @@
   #define E0_SERIAL_RX_PIN                  PC14
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
+  #endif
 
 #endif // HAS_TMC_UART
 

Marlin/src/pins/lpc1768/pins_BTT_SKR_V1_3.h

@@ -186,9 +186,12 @@
   #define E1_SERIAL_RX_PIN                 P1_01
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
   #endif
 
+#endif // HAS_TMC_UART
+
 /**
  *                 ------                                     ------
  *  (BEEPER) 1.30 | 1  2 | 0.28 (BTN_ENC)        (MISO) 0.17 | 1  2 | 0.15 (SCK)

Marlin/src/pins/lpc1768/pins_BTT_SKR_V1_4.h

@@ -243,9 +243,12 @@
   #define E1_SERIAL_RX_PIN      E1_SERIAL_TX_PIN
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
   #endif
 
+#endif // HAS_TMC_UART
+
 /**       ------                ------
  *  1.30 | 1  2 | 0.28    0.17 | 1  2 | 0.15
  *  1.18 | 3  4 | 1.19    3.26 | 3  4 | 0.16

Marlin/src/pins/lpc1768/pins_GMARSH_X6_REV1.h

@@ -106,7 +106,9 @@
   #define E2_SERIAL_RX_PIN      E2_SERIAL_TX_PIN
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
+  #endif
 #else
   #error "TMC2208 UART configuration is required for GMarsh X6."
 #endif

Marlin/src/pins/lpc1768/pins_MKS_SBASE.h

@@ -336,9 +336,12 @@
   #define E0_SERIAL_RX_PIN                 P0_26  // TH4
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
   #endif
 
+#endif // HAS_TMC_UART
+
 // UNUSED
 //#define PIN_P0_02                        P0_02  // AUX1 (Interrupt Capable/ADC/Serial Port 0)
 //#define PIN_P0_03                        P0_03  // AUX1 (Interrupt Capable/ADC/Serial Port 0)

Marlin/src/pins/lpc1768/pins_MKS_SGEN_L.h

@@ -184,7 +184,10 @@
   #define Z2_SERIAL_RX_PIN                 P1_17
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
+  #endif
+
 #endif // HAS_TMC_UART
 
 //

Marlin/src/pins/lpc1768/pins_RAMPS_RE_ARM.h

@@ -151,9 +151,12 @@
   #endif
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
   #endif
 
+#endif // HAS_TMC_UART
+
 //
 // Temperature Sensors
 //  3.3V max when defined as an analog input

Marlin/src/pins/lpc1769/pins_BTT_SKR_E3_TURBO.h

@@ -153,9 +153,12 @@
   #define E1_SERIAL_RX_PIN      E1_SERIAL_TX_PIN
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
   #endif
 
+#endif // HAS_TMC_UART
+
 //
 // TMC Low Power Standby pins
 //

Marlin/src/pins/lpc1769/pins_FLY_CDY.h

@@ -126,9 +126,12 @@
   #define E2_SERIAL_RX_PIN      E2_SERIAL_TX_PIN
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
   #endif
 
+#endif // HAS_TMC_UART
+
 //
 // Temperature Sensors
 //

Marlin/src/pins/lpc1769/pins_MKS_SGEN.h

@@ -56,5 +56,8 @@
   #define E1_SERIAL_RX_PIN      E1_SERIAL_TX_PIN
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
   #endif
+
+#endif // HAS_TMC_UART

Marlin/src/pins/lpc1769/pins_MKS_SGEN_L_V2.h

@@ -195,7 +195,10 @@
   #define E1_SERIAL_RX_PIN      E1_SERIAL_TX_PIN
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
+  #endif
+
 #endif // HAS_TMC_UART
 
 //

Marlin/src/pins/lpc1769/pins_TH3D_EZBOARD.h

@@ -99,9 +99,12 @@
   #define E0_SERIAL_RX_PIN                 P0_21
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
   #endif
 
+#endif // HAS_TMC_UART
+
 //
 // Temp Sensors
 //  3.3V max when defined as an Analog Input!

Marlin/src/pins/ramps/pins_RAMPS.h

@@ -337,8 +337,9 @@
    * Hardware serial communication ports.
    * If undefined software serial is used according to the pins below
    *
-   * Serial2 -- AUX-4 Pin 18 (D16 TX2) and AUX-4 Pin 17 (D17 RX2)
+   * Serial1 -- TX1 = D18   RX1 = D19 (Z-MIN and Z-MAX on RAMPS)
-   * Serial1 -- Pins D18 and D19 are used for Z-MIN and Z-MAX
+   * Serial2 -- TX2 = D16   RX2 = D17 (AUX4-18 and AUX4-17)
+   * Serial3 -- TX3 = D14   RX3 = D15 (Available on some RAMPS-like boards)
    */
   //#define X_HARDWARE_SERIAL Serial1
   //#define X2_HARDWARE_SERIAL Serial1

Marlin/src/pins/ramps/pins_TRIGORILLA_14.h

@@ -69,6 +69,7 @@
  *       IIC : 12V GND D21 D20 GND 5V
  *                    (SCL SDA)
  *
+ *             TX2 RX2 RX3 TX3
  * END STOPS : D19 D18 D15 D14 D2  D3
  *             GND GND GND GND GND GND
  *             5V  5V  5V  5V  5V  5V

Marlin/src/pins/stm32f1/pins_BTT_SKR_E3_DIP.h

@@ -131,9 +131,12 @@
   #define E0_SERIAL_RX_PIN      E0_SERIAL_TX_PIN
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
   #endif
 
+#endif // HAS_TMC_UART
+
 //
 // Temperature Sensors
 //

Marlin/src/pins/stm32f1/pins_BTT_SKR_MINI_E3_V1_2.h

@@ -46,5 +46,8 @@
   #define E0_SERIAL_RX_PIN      E0_SERIAL_TX_PIN
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
   #endif
+
+#endif // HAS_TMC_UART

Marlin/src/pins/stm32f1/pins_BTT_SKR_MINI_V1_1.h

@@ -93,9 +93,12 @@
   #define E0_SERIAL_RX_PIN      E0_SERIAL_TX_PIN
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
   #endif
 
+#endif // HAS_TMC_UART
+
 //
 // Heaters / Fans
 //

Marlin/src/pins/stm32f1/pins_CCROBOT_MEEB_3DP.h

@@ -100,7 +100,9 @@
 #endif
 
 // Reduce baud rate to improve software serial reliability
+#ifndef TMC_BAUD_RATE
   #define TMC_BAUD_RATE                    19200
+#endif
 
 //
 // Temperature Sensors

Marlin/src/pins/stm32f1/pins_FLSUN_HISPEED.h

@@ -128,7 +128,9 @@
   #define Y_SERIAL_RX_PIN        Y_SERIAL_TX_PIN
   #define Z_SERIAL_TX_PIN                   PC7   // IO1
   #define Z_SERIAL_RX_PIN        Z_SERIAL_TX_PIN
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
+  #endif
 #else
   // Motor current PWM pins
   #define MOTOR_CURRENT_PWM_XY_PIN          PA6   // VREF2/3 CONTROL XY
@@ -169,7 +171,6 @@
 #if AXIS_DRIVER_TYPE_E0(TMC2208) || AXIS_DRIVER_TYPE_E0(TMC2209)
   #define E0_SERIAL_TX_PIN                  PA8   // IO0
   #define E0_SERIAL_RX_PIN                  PA8   // IO0
-  #define TMC_BAUD_RATE                    19200
 #else
   // Motor current PWM pins
   #define MOTOR_CURRENT_PWM_E_PIN           PB0   // VREF1 CONTROL E

Marlin/src/pins/stm32f1/pins_FYSETC_AIO_II.h

@@ -118,9 +118,12 @@
   #endif
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
   #endif
 
+#endif // HAS_TMC_UART
+
 //
 // Stepper current PWM
 //

Marlin/src/pins/stm32f1/pins_FYSETC_CHEETAH_V12.h

@@ -55,5 +55,8 @@
   #define E0_SERIAL_RX_PIN                  PA3
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
   #endif
+
+#endif // HAS_TMC_UART

Marlin/src/pins/stm32f1/pins_MKS_ROBIN_E3P.h

@@ -156,7 +156,10 @@
   #define E0_SERIAL_RX_PIN                  PD9
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
+  #endif
+
 #endif // HAS_TMC_UART
 
 //

Marlin/src/pins/stm32f1/pins_MKS_ROBIN_E3_common.h

@@ -112,9 +112,12 @@
   #define E0_SERIAL_RX_PIN                  PC11
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
   #endif
 
+#endif // HAS_TMC_UART
+
 //
 // Heaters 0,1 / Fans / Bed
 //

Marlin/src/pins/stm32f1/pins_MKS_ROBIN_NANO_V2.h

@@ -163,7 +163,10 @@
   #define E1_SERIAL_RX_PIN                  PD8
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
+  #endif
+
 #endif // HAS_TMC_UART
 
 //

Marlin/src/pins/stm32f1/pins_PANDA_PI_V29.h

@@ -125,9 +125,12 @@
   #define E0_SERIAL_RX_PIN      E0_SERIAL_TX_PIN
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
   #endif
 
+#endif // HAS_TMC_UART
+
 //
 // Temperature Sensors
 //

Marlin/src/pins/stm32f4/pins_ARMED.h

@@ -223,5 +223,8 @@
   #define Z2_SERIAL_RX_PIN              EXT4_PIN
   #define Z2_SERIAL_TX_PIN              EXT4_PIN
 
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
   #endif
+
+#endif // HAS_TMC_UART

Marlin/src/pins/stm32f4/pins_BTT_BTT002_V1_0.h

@@ -152,9 +152,12 @@
   #define E0_SERIAL_RX_PIN      E0_SERIAL_TX_PIN
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
   #endif
 
+#endif // HAS_TMC_UART
+
 //
 // Temperature Sensors
 //

Marlin/src/pins/stm32f4/pins_BTT_E3_RRF.h

@@ -131,9 +131,12 @@
   #endif
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
   #endif
 
+#endif // HAS_TMC_UART
+
 //
 // Temperature Sensors
 //

Marlin/src/pins/stm32f4/pins_BTT_GTR_V1_0.h

@@ -282,9 +282,12 @@
   #endif
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
   #endif
 
+#endif // HAS_TMC_UART
+
 //
 // Temperature Sensors
 //

Marlin/src/pins/stm32f4/pins_BTT_OCTOPUS_V1_common.h

@@ -299,9 +299,12 @@
   #define E3_SERIAL_RX_PIN      E3_SERIAL_TX_PIN
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
   #endif
 
+#endif // HAS_TMC_UART
+
 /**               ------                                      ------
  * (BEEPER) PE8  | 1  2 | PE7  (BTN_ENC)         (MISO) PA6  | 1  2 | PA5  (SCK)
  * (LCD_EN) PE9  | 3  4 | PE10 (LCD_RS)       (BTN_EN1) PB2  | 3  4 | PA4  (SD_SS)

Marlin/src/pins/stm32f4/pins_BTT_SKR_PRO_common.h

@@ -222,9 +222,12 @@
   #define E2_SERIAL_RX_PIN      E2_SERIAL_TX_PIN
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
   #endif
 
+#endif // HAS_TMC_UART
+
 //
 // Temperature Sensors
 // Use ADC pins without pullup for sensors that don't need a pullup.

Marlin/src/pins/stm32f4/pins_BTT_SKR_V2_0_common.h

@@ -322,9 +322,12 @@
   #define E1_SERIAL_RX_PIN      E1_SERIAL_TX_PIN
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
   #endif
 
+#endif // HAS_TMC_UART
+
 //
 // SD Connection
 //

Marlin/src/pins/stm32f4/pins_LERDGE_K.h

@@ -159,9 +159,12 @@
   //#define E2_SERIAL_RX_PIN    EX_SERIAL_RX_PIN
   //#define E2_SERIAL_TX_PIN    EX_SERIAL_TX_PIN
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
   #endif
 
+#endif // HAS_TMC_UART
+
 //
 // Temperature Sensors
 //

Marlin/src/pins/stm32f4/pins_MKS_MONSTER8_common.h

@@ -175,9 +175,12 @@
   #define E4_SERIAL_RX_PIN      E4_SERIAL_TX_PIN
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
   #endif
 
+#endif // HAS_TMC_UART
+
 //
 // Temperature Sensors
 //

Marlin/src/pins/stm32f4/pins_MKS_ROBIN_NANO_V3_common.h

@@ -108,9 +108,12 @@
   #define E1_SERIAL_RX_PIN      E1_SERIAL_TX_PIN
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
   #endif
 
+#endif // HAS_TMC_UART
+
 //
 // Temperature Sensors
 //

Marlin/src/pins/stm32f4/pins_MKS_ROBIN_PRO_V2.h

@@ -160,7 +160,10 @@
   #define E1_SERIAL_RX_PIN      E1_SERIAL_TX_PIN
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
+  #endif
+
 #endif // HAS_TMC_UART
 
 //

Marlin/src/pins/stm32f4/pins_MKS_SKIPR_V1_0.h

@@ -211,9 +211,12 @@
   #define E3_SERIAL_RX_PIN      E3_SERIAL_TX_PIN
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
   #endif
 
+#endif // HAS_TMC_UART
+
 /**               ------                                      ------
  * (BEEPER) PB2  | 1  2 | PE10 (BTN_ENC)         (MISO) PA6  | 1  2 | PA5  (SCK)
  * (LCD_EN) PE11 | 3  4 | PD10 (LCD_RS)       (BTN_EN1) PE9  | 3  4 | PA4  (SD_SS)

Marlin/src/pins/stm32f4/pins_OPULO_LUMEN_REV3.h

@@ -144,10 +144,12 @@
   #define K_SERIAL_RX_PIN        K_SERIAL_TX_PIN
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
-
   #endif
 
+#endif // HAS_TMC_UART
+
 //
 // Heaters / Fans
 //

Marlin/src/pins/stm32f4/pins_OPULO_LUMEN_REV4.h

@@ -141,10 +141,12 @@
   #define K_SERIAL_RX_PIN        K_SERIAL_TX_PIN
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
-
   #endif
 
+#endif // HAS_TMC_UART
+
 //
 // Heaters / Fans
 //

Marlin/src/pins/stm32f4/pins_TH3D_EZBOARD_V2.h

@@ -132,9 +132,6 @@
   #define E0_SERIAL_TX_PIN                  PC10
   #define E0_SERIAL_RX_PIN                  PC11
 
-  // Reduce baud rate to improve software serial reliability
-  #define TMC_BAUD_RATE                    19200
-
   // Default TMC slave addresses
   #ifndef X_SLAVE_ADDRESS
     #define X_SLAVE_ADDRESS  0
@@ -148,8 +145,14 @@
   #ifndef E0_SLAVE_ADDRESS
     #define E0_SLAVE_ADDRESS 3
   #endif
+
+  // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
+    #define TMC_BAUD_RATE                  19200
   #endif
 
+#endif // HAS_TMC_UART
+
 //
 // Temp Sensors
 //  3.3V max when defined as an Analog Input!

Marlin/src/pins/stm32g0/pins_BTT_EBB42_V1_1.h

@@ -110,7 +110,9 @@
   #define E0_SERIAL_RX_PIN      E0_SERIAL_TX_PIN
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
+  #endif
 
   // Default TMC slave addresses
   #ifndef E0_SLAVE_ADDRESS

Marlin/src/pins/stm32g0/pins_BTT_MANTA_E3_EZ_V1_0.h

@@ -172,9 +172,12 @@
   #define E1_SERIAL_RX_PIN      E1_SERIAL_TX_PIN
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
   #endif
 
+#endif // HAS_TMC_UART
+
 //
 // Temperature Sensors
 //

Marlin/src/pins/stm32g0/pins_BTT_MANTA_M4P_V1_0.h

@@ -138,9 +138,12 @@
   #define E0_SERIAL_RX_PIN      E0_SERIAL_TX_PIN
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
   #endif
 
+#endif // HAS_TMC_UART
+
 //
 // Temperature Sensors
 //

Marlin/src/pins/stm32g0/pins_BTT_MANTA_M5P_V1_0.h

@@ -158,9 +158,12 @@
   #define E1_SERIAL_RX_PIN      E1_SERIAL_TX_PIN
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
   #endif
 
+#endif // HAS_TMC_UART
+
 //
 // Temperature Sensors
 //

Marlin/src/pins/stm32g0/pins_BTT_MANTA_M8P_V1_0.h

@@ -64,9 +64,12 @@
   #define E3_SERIAL_RX_PIN      E3_SERIAL_TX_PIN
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
   #endif
 
+#endif // HAS_TMC_UART
+
 //
 // NeoPixel LED
 //

Marlin/src/pins/stm32g0/pins_BTT_MANTA_M8P_V1_1.h

@@ -63,9 +63,12 @@
   #define E3_SERIAL_RX_PIN      E3_SERIAL_TX_PIN
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
   #endif
 
+#endif // HAS_TMC_UART
+
 //
 // NeoPixel LED
 //

Marlin/src/pins/stm32g0/pins_BTT_MANTA_M8P_common.h

@@ -194,9 +194,12 @@
   #define E0_SERIAL_RX_PIN      E0_SERIAL_TX_PIN
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
   #endif
 
+#endif // HAS_TMC_UART
+
 //
 // Temperature Sensors
 //

Marlin/src/pins/stm32h7/pins_BTT_OCTOPUS_MAX_EZ.h

@@ -318,9 +318,12 @@
   #define E5_SERIAL_RX_PIN      E3_SERIAL_TX_PIN
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
   #endif
 
+#endif // HAS_TMC_UART
+
 /**
  *                    ----
  *       (MISO) PE13 | 1  |

Marlin/src/pins/stm32h7/pins_BTT_SKR_SE_BX_common.h

@@ -141,9 +141,12 @@
   #define E1_SERIAL_RX_PIN      E1_SERIAL_TX_PIN
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
   #endif
 
+#endif // HAS_TMC_UART
+
 //
 // Temperature Sensors
 //

Marlin/src/pins/stm32h7/pins_BTT_SKR_V3_0_common.h

@@ -310,9 +310,12 @@
   #define E1_SERIAL_RX_PIN      E1_SERIAL_TX_PIN
 
   // Reduce baud rate to improve software serial reliability
+  #ifndef TMC_BAUD_RATE
     #define TMC_BAUD_RATE                  19200
   #endif
 
+#endif // HAS_TMC_UART
+
 //
 // SD Connection
 //