From a083b1280ec80a525766c0a9487865b76de64c81 Mon Sep 17 00:00:00 2001
From: Keith Bennett <13375512+thisiskeithb@users.noreply.github.com>
Date: Thu, 31 Mar 2022 19:16:11 -0700
Subject: [PATCH] =?UTF-8?q?=F0=9F=93=8C=20SKR=20Mini=20V1.1=20TMC=20UART?=
 =?UTF-8?q?=20Pins=20(#23970)?=
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---
 .../src/pins/stm32f1/pins_BTT_SKR_MINI_V1_1.h   | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/Marlin/src/pins/stm32f1/pins_BTT_SKR_MINI_V1_1.h b/Marlin/src/pins/stm32f1/pins_BTT_SKR_MINI_V1_1.h
index 7e2c638acb..1ea947ffdf 100644
--- a/Marlin/src/pins/stm32f1/pins_BTT_SKR_MINI_V1_1.h
+++ b/Marlin/src/pins/stm32f1/pins_BTT_SKR_MINI_V1_1.h
@@ -80,6 +80,23 @@
   #endif
 #endif
 
+#if HAS_TMC_UART                                  // Shared with EXP1
+  #define X_SERIAL_TX_PIN                  PC10
+  #define X_SERIAL_RX_PIN       X_SERIAL_TX_PIN
+
+  #define Y_SERIAL_TX_PIN                  PC11
+  #define Y_SERIAL_RX_PIN       Y_SERIAL_TX_PIN
+
+  #define Z_SERIAL_TX_PIN                  PC12
+  #define Z_SERIAL_RX_PIN       Z_SERIAL_TX_PIN
+
+  #define E0_SERIAL_TX_PIN                 PC14
+  #define E0_SERIAL_RX_PIN     E0_SERIAL_TX_PIN
+
+  // Reduce baud rate to improve software serial reliability
+  #define TMC_BAUD_RATE                   19200
+#endif
+
 //
 // Heaters / Fans
 //