From be7c8791b94a10b84f21e45d045393d820f94396 Mon Sep 17 00:00:00 2001
From: Sean McGroty <sean@darkon.net>
Date: Tue, 22 Dec 2020 07:25:12 -0500
Subject: [PATCH] Creality v4.3.1 (Ender 6) board (#20512)

---
 Marlin/src/pins/pins.h                       |  2 +
 Marlin/src/pins/stm32f1/pins_CREALITY_V427.h |  4 --
 Marlin/src/pins/stm32f1/pins_CREALITY_V431.h | 39 ++++++++++++++++++++
 3 files changed, 41 insertions(+), 4 deletions(-)
 create mode 100644 Marlin/src/pins/stm32f1/pins_CREALITY_V431.h

diff --git a/Marlin/src/pins/pins.h b/Marlin/src/pins/pins.h
index 6bf45d2d01ddf..96e8f8b458533 100644
--- a/Marlin/src/pins/pins.h
+++ b/Marlin/src/pins/pins.h
@@ -576,6 +576,8 @@
   #include "stm32f1/pins_CREALITY_V4.h"         // STM32F1                                env:STM32F103RET6_creality
 #elif MB(CREALITY_V427)
   #include "stm32f1/pins_CREALITY_V427.h"       // STM32F1                                env:STM32F103RET6_creality
+#elif MB(CREALITY_V431)
+  #include "stm32f1/pins_CREALITY_V431.h"       // STM32F1                                env:STM32F103RET6_creality
 #elif MB(CREALITY_V452)
   #include "stm32f1/pins_CREALITY_V452.h"       // STM32F1                                env:STM32F103RET6_creality
 #elif MB(CREALITY_V453)
diff --git a/Marlin/src/pins/stm32f1/pins_CREALITY_V427.h b/Marlin/src/pins/stm32f1/pins_CREALITY_V427.h
index d51aaa956a8b4..64ef046bd3ade 100644
--- a/Marlin/src/pins/stm32f1/pins_CREALITY_V427.h
+++ b/Marlin/src/pins/stm32f1/pins_CREALITY_V427.h
@@ -24,10 +24,6 @@
  * CREALITY v4.2.7 (STM32F103) board pin assignments
  */
 
-#if NOT_TARGET(__STM32F1__)
-  #error "Oops! Select an STM32F1 board in 'Tools > Board.'"
-#endif
-
 #define BOARD_INFO_NAME      "Creality v4.2.7"
 #define DEFAULT_MACHINE_NAME "Creality3D"
 
diff --git a/Marlin/src/pins/stm32f1/pins_CREALITY_V431.h b/Marlin/src/pins/stm32f1/pins_CREALITY_V431.h
new file mode 100644
index 0000000000000..ff9f76054e6e7
--- /dev/null
+++ b/Marlin/src/pins/stm32f1/pins_CREALITY_V431.h
@@ -0,0 +1,39 @@
+/**
+ * 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/>.
+ *
+ */
+
+/**
+ * CREALITY v4.3.1 (STM32F103) board pin assignments
+ */
+
+#define BOARD_INFO_NAME      "Creality v4.3.1"
+#define DEFAULT_MACHINE_NAME "Creality3D"
+
+//
+// Steppers
+//
+#define X_STEP_PIN                        PB8
+#define X_DIR_PIN                         PB7
+
+#define Y_STEP_PIN                        PC2
+#define Y_DIR_PIN                         PB9
+
+#include "pins_CREALITY_V4.h"