✨ BOARD_RUMBA32_BTT (#22607)

Marlin/src/pins/stm32f4/pins_FYSETC_S6.h

@@ -195,7 +195,6 @@
 // Misc. Functions
 //
 //#define LED_PIN                           PB14
-//#define BTN_PIN                           PC10
 //#define PS_ON_PIN                         PE11
 //#define KILL_PIN                          PC5
 

Marlin/src/pins/stm32f4/pins_RUMBA32_AUS3D.h

@@ -51,7 +51,6 @@
 #if MB(RUMBA32_V1_1)
 
   #define SERVO0_PIN                        PA15
-  #undef BTN_PIN
 
   #if HAS_TMC_UART
     //

Marlin/src/pins/stm32f4/pins_RUMBA32_BTT.h

@@ -0,0 +1,68 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * No offical schematics have been found.
+ * But these differences where noted in https://github.com/bigtreetech/Rumba32/issues/1
+ */
+
+#pragma once
+
+#define BOARD_INFO_NAME "RUMBA32 (BTT)"
+
+#if NO_EEPROM_SELECTED
+  #define I2C_EEPROM
+  #define MARLIN_EEPROM_SIZE            0x2000  // 8KB (24LC64T-I/OT)
+#endif
+
+#if ENABLED(FLASH_EEPROM_EMULATION)
+  // Decrease delays and flash wear by spreading writes across the
+  // 128 kB sector allocated for EEPROM emulation.
+  #define FLASH_EEPROM_LEVELING
+#endif
+
+#include "pins_RUMBA32_common.h"
+
+#define SERVO0_PIN                          PA15  // Pin is not broken out, is a test point only.
+
+#if HAS_TMC_UART
+  //
+  // TMC2208/TMC2209 Software Serial
+  //
+  #define X_SERIAL_TX_PIN                   PC14  // BTT Rumba32 only uses 1 pin for UART
+  #define X_SERIAL_RX_PIN        X_SERIAL_TX_PIN
+
+  #define Y_SERIAL_TX_PIN                   PE4
+  #define Y_SERIAL_RX_PIN        Y_SERIAL_TX_PIN
+
+  #define Z_SERIAL_TX_PIN                   PE0
+  #define Z_SERIAL_RX_PIN        Z_SERIAL_TX_PIN
+
+  #define E0_SERIAL_TX_PIN                  PC13
+  #define E0_SERIAL_RX_PIN      E0_SERIAL_TX_PIN
+
+  #define E1_SERIAL_TX_PIN                  PD5
+  #define E1_SERIAL_RX_PIN      E1_SERIAL_TX_PIN
+
+  #define E2_SERIAL_TX_PIN                  PD1
+  #define E2_SERIAL_RX_PIN      E2_SERIAL_TX_PIN
+#endif

Marlin/src/pins/stm32f4/pins_RUMBA32_common.h

@@ -134,7 +134,6 @@
 // Misc. Functions
 //
 #define LED_PIN                             PB14
-#define BTN_PIN                             PC10
 #define PS_ON_PIN                           PE11
 #define KILL_PIN                            PC5