From 0aa87af82f90be409e85e9c6f2792e912396a709 Mon Sep 17 00:00:00 2001
From: Scott Lahteine <github@thinkyhead.com>
Date: Sat, 21 Aug 2021 15:07:52 -0500
Subject: [PATCH] =?UTF-8?q?=F0=9F=8E=A8=20Tweak=20TMC=20software=20serial?=
=?UTF-8?q?=20pins?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
---
Marlin/src/pins/lpc1768/pins_BTT_SKR_V1_3.h | 3 --
Marlin/src/pins/lpc1768/pins_BTT_SKR_V1_4.h | 13 +++-----
Marlin/src/pins/lpc1768/pins_BTT_SKR_common.h | 6 ++--
Marlin/src/pins/lpc1768/pins_GMARSH_X6_REV1.h | 17 ++++++----
Marlin/src/pins/lpc1768/pins_MKS_SBASE.h | 3 ++
Marlin/src/pins/lpc1768/pins_MKS_SGEN_L.h | 4 ---
Marlin/src/pins/lpc1768/pins_RAMPS_RE_ARM.h | 11 +++----
.../src/pins/lpc1769/pins_BTT_SKR_E3_TURBO.h | 13 +++-----
Marlin/src/pins/lpc1769/pins_FLY_CDY.h | 12 +++----
Marlin/src/pins/lpc1769/pins_MKS_SGEN.h | 15 +++++----
Marlin/src/pins/lpc1769/pins_MKS_SGEN_L_V2.h | 17 +++++-----
Marlin/src/pins/lpc1769/pins_TH3D_EZBOARD.h | 4 ++-
Marlin/src/pins/ramps/pins_FYSETC_F6_13.h | 26 +++++++--------
Marlin/src/pins/ramps/pins_FYSETC_F6_14.h | 17 ++++++----
Marlin/src/pins/ramps/pins_ORTUR_4.h | 21 ++++++------
Marlin/src/pins/ramps/pins_RAMPS.h | 4 ---
Marlin/src/pins/ramps/pins_TT_OSCAR.h | 4 ---
Marlin/src/pins/ramps/pins_Z_BOLT_X_SERIES.h | 4 ---
Marlin/src/pins/samd/pins_RAMPS_144.h | 20 +++++------
Marlin/src/pins/stm32f1/pins_BTT_SKR_E3_DIP.h | 11 +++----
.../pins/stm32f1/pins_BTT_SKR_MINI_E3_V1_2.h | 11 +++----
.../src/pins/stm32f1/pins_CCROBOT_MEEB_3DP.h | 23 ++++++++-----
Marlin/src/pins/stm32f1/pins_FLSUN_HISPEED.h | 6 ++--
Marlin/src/pins/stm32f1/pins_FLY_MINI.h | 11 +++----
.../pins/stm32f1/pins_FYSETC_CHEETAH_V12.h | 3 --
Marlin/src/pins/stm32f1/pins_MKS_ROBIN.h | 6 ++--
Marlin/src/pins/stm32f1/pins_MKS_ROBIN_E3P.h | 4 ---
.../pins/stm32f1/pins_MKS_ROBIN_E3_common.h | 3 --
.../src/pins/stm32f1/pins_MKS_ROBIN_NANO_V2.h | 4 ---
Marlin/src/pins/stm32f1/pins_MKS_ROBIN_PRO.h | 3 --
Marlin/src/pins/stm32f4/pins_ARMED.h | 3 --
.../src/pins/stm32f4/pins_BTT_BTT002_V1_0.h | 11 +++----
Marlin/src/pins/stm32f4/pins_BTT_E3_RRF.h | 15 ++++-----
Marlin/src/pins/stm32f4/pins_BTT_GTR_V1_0.h | 25 +++++++-------
.../pins/stm32f4/pins_BTT_OCTOPUS_V1_common.h | 25 +++++++-------
.../pins/stm32f4/pins_BTT_SKR_PRO_common.h | 15 ++++-----
.../pins/stm32f4/pins_BTT_SKR_V2_0_common.h | 13 +++-----
Marlin/src/pins/stm32f4/pins_FLYF407ZG.h | 19 +++++------
Marlin/src/pins/stm32f4/pins_FYSETC_S6.h | 3 --
Marlin/src/pins/stm32f4/pins_FYSETC_S6_V2_0.h | 1 -
Marlin/src/pins/stm32f4/pins_FYSETC_SPIDER.h | 33 +++++++++++--------
Marlin/src/pins/stm32f4/pins_LERDGE_K.h | 12 +++----
Marlin/src/pins/stm32f4/pins_MKS_MONSTER8.h | 16 ++++-----
.../src/pins/stm32f4/pins_MKS_ROBIN_NANO_V3.h | 10 +++---
.../src/pins/stm32f4/pins_MKS_ROBIN_PRO_V2.h | 14 +++-----
Marlin/src/pins/stm32f4/pins_RUMBA32_MKS.h | 3 --
Marlin/src/pins/stm32f7/pins_NUCLEO_F767ZI.h | 10 +++---
Marlin/src/pins/stm32h7/pins_BTT_SKR_SE_BX.h | 13 +++-----
48 files changed, 238 insertions(+), 302 deletions(-)
diff --git a/Marlin/src/pins/lpc1768/pins_BTT_SKR_V1_3.h b/Marlin/src/pins/lpc1768/pins_BTT_SKR_V1_3.h
index 42c6f4d0299..b922f057f1e 100644
--- a/Marlin/src/pins/lpc1768/pins_BTT_SKR_V1_3.h
+++ b/Marlin/src/pins/lpc1768/pins_BTT_SKR_V1_3.h
@@ -164,9 +164,6 @@
//#define E3_HARDWARE_SERIAL Serial1
//#define E4_HARDWARE_SERIAL Serial1
- //
- // Software serial
- //
#define X_SERIAL_TX_PIN P4_29
#define X_SERIAL_RX_PIN P1_17
diff --git a/Marlin/src/pins/lpc1768/pins_BTT_SKR_V1_4.h b/Marlin/src/pins/lpc1768/pins_BTT_SKR_V1_4.h
index 43e954a4f1b..2c9e608e496 100644
--- a/Marlin/src/pins/lpc1768/pins_BTT_SKR_V1_4.h
+++ b/Marlin/src/pins/lpc1768/pins_BTT_SKR_V1_4.h
@@ -220,23 +220,20 @@
//#define E3_HARDWARE_SERIAL Serial1
//#define E4_HARDWARE_SERIAL Serial1
- //
- // Software serial
- //
#define X_SERIAL_TX_PIN P1_10
- #define X_SERIAL_RX_PIN P1_10
+ #define X_SERIAL_RX_PIN X_SERIAL_TX_PIN
#define Y_SERIAL_TX_PIN P1_09
- #define Y_SERIAL_RX_PIN P1_09
+ #define Y_SERIAL_RX_PIN Y_SERIAL_TX_PIN
#define Z_SERIAL_TX_PIN P1_08
- #define Z_SERIAL_RX_PIN P1_08
+ #define Z_SERIAL_RX_PIN Z_SERIAL_TX_PIN
#define E0_SERIAL_TX_PIN P1_04
- #define E0_SERIAL_RX_PIN P1_04
+ #define E0_SERIAL_RX_PIN E0_SERIAL_TX_PIN
#define E1_SERIAL_TX_PIN P1_01
- #define E1_SERIAL_RX_PIN P1_01
+ #define E1_SERIAL_RX_PIN E1_SERIAL_TX_PIN
// Reduce baud rate to improve software serial reliability
#define TMC_BAUD_RATE 19200
diff --git a/Marlin/src/pins/lpc1768/pins_BTT_SKR_common.h b/Marlin/src/pins/lpc1768/pins_BTT_SKR_common.h
index cb3d3242e28..9e04fc04795 100644
--- a/Marlin/src/pins/lpc1768/pins_BTT_SKR_common.h
+++ b/Marlin/src/pins/lpc1768/pins_BTT_SKR_common.h
@@ -172,7 +172,7 @@
#define E2_CS_PIN EXP1_05_PIN
#if HAS_TMC_UART
#define E2_SERIAL_TX_PIN EXP1_05_PIN
- #define E2_SERIAL_RX_PIN EXP1_05_PIN
+ #define E2_SERIAL_RX_PIN E2_SERIAL_TX_PIN
#endif
#endif
@@ -185,7 +185,7 @@
#define E3_CS_PIN EXP1_07_PIN
#if HAS_TMC_UART
#define E3_SERIAL_TX_PIN EXP1_07_PIN
- #define E3_SERIAL_RX_PIN EXP1_07_PIN
+ #define E3_SERIAL_RX_PIN E3_SERIAL_TX_PIN
#endif
#else
#define E3_ENABLE_PIN EXP2_04_PIN
@@ -200,7 +200,7 @@
#define E4_CS_PIN EXP1_09_PIN
#if HAS_TMC_UART
#define E4_SERIAL_TX_PIN EXP1_09_PIN
- #define E4_SERIAL_RX_PIN EXP1_09_PIN
+ #define E4_SERIAL_RX_PIN E4_SERIAL_TX_PIN
#endif
#else
#define E4_ENABLE_PIN EXP2_04_PIN
diff --git a/Marlin/src/pins/lpc1768/pins_GMARSH_X6_REV1.h b/Marlin/src/pins/lpc1768/pins_GMARSH_X6_REV1.h
index 1ec1131b45f..1feaeb13b5d 100644
--- a/Marlin/src/pins/lpc1768/pins_GMARSH_X6_REV1.h
+++ b/Marlin/src/pins/lpc1768/pins_GMARSH_X6_REV1.h
@@ -82,17 +82,22 @@
//
#if HAS_TMC_UART
#define X_SERIAL_TX_PIN P1_00
- #define X_SERIAL_RX_PIN P1_00
+ #define X_SERIAL_RX_PIN X_SERIAL_TX_PIN
+
#define Y_SERIAL_TX_PIN P1_09
- #define Y_SERIAL_RX_PIN P1_09
+ #define Y_SERIAL_RX_PIN Y_SERIAL_TX_PIN
+
#define Z_SERIAL_TX_PIN P1_16
- #define Z_SERIAL_RX_PIN P1_16
+ #define Z_SERIAL_RX_PIN Z_SERIAL_TX_PIN
+
#define E0_SERIAL_TX_PIN P0_04
- #define E0_SERIAL_RX_PIN P0_04
+ #define E0_SERIAL_RX_PIN E0_SERIAL_TX_PIN
+
#define E1_SERIAL_TX_PIN P2_02
- #define E1_SERIAL_RX_PIN P2_02
+ #define E1_SERIAL_RX_PIN E1_SERIAL_TX_PIN
+
#define E2_SERIAL_TX_PIN P2_06
- #define E2_SERIAL_RX_PIN P2_06
+ #define E2_SERIAL_RX_PIN E2_SERIAL_TX_PIN
// Reduce baud rate to improve software serial reliability
#define TMC_BAUD_RATE 19200
diff --git a/Marlin/src/pins/lpc1768/pins_MKS_SBASE.h b/Marlin/src/pins/lpc1768/pins_MKS_SBASE.h
index 44dbaacb730..a2235dc28ad 100644
--- a/Marlin/src/pins/lpc1768/pins_MKS_SBASE.h
+++ b/Marlin/src/pins/lpc1768/pins_MKS_SBASE.h
@@ -327,10 +327,13 @@
*/
#define X_SERIAL_TX_PIN P1_22 // J8-2
#define X_SERIAL_RX_PIN P2_12 // J8-4 Interrupt Capable
+
#define Y_SERIAL_TX_PIN P1_23 // J8-3
#define Y_SERIAL_RX_PIN P2_11 // J8-5 Interrupt Capable
+
#define Z_SERIAL_TX_PIN P2_12 // J8-4
#define Z_SERIAL_RX_PIN P0_25 // TH3
+
#define E0_SERIAL_TX_PIN P4_28 // J8-6
#define E0_SERIAL_RX_PIN P0_26 // TH4
diff --git a/Marlin/src/pins/lpc1768/pins_MKS_SGEN_L.h b/Marlin/src/pins/lpc1768/pins_MKS_SGEN_L.h
index 8808c3a2280..449d9a93ce4 100644
--- a/Marlin/src/pins/lpc1768/pins_MKS_SGEN_L.h
+++ b/Marlin/src/pins/lpc1768/pins_MKS_SGEN_L.h
@@ -163,10 +163,6 @@
//#define E3_HARDWARE_SERIAL Serial1
//#define E4_HARDWARE_SERIAL Serial1
- //
- // Software serial
- //
-
#define X_SERIAL_TX_PIN P1_04
#define X_SERIAL_RX_PIN P1_01
diff --git a/Marlin/src/pins/lpc1768/pins_RAMPS_RE_ARM.h b/Marlin/src/pins/lpc1768/pins_RAMPS_RE_ARM.h
index fe7daa8cdaf..62127f5504b 100644
--- a/Marlin/src/pins/lpc1768/pins_RAMPS_RE_ARM.h
+++ b/Marlin/src/pins/lpc1768/pins_RAMPS_RE_ARM.h
@@ -119,9 +119,6 @@
* If undefined software serial is used according to the pins below
*/
- //
- // Software serial
- //
// P2_08 E1-Step
// P2_13 E1-Dir
@@ -130,28 +127,28 @@
#define X_SERIAL_TX_PIN P0_01
#endif
#ifndef X_SERIAL_RX_PIN
- #define X_SERIAL_RX_PIN P0_01
+ #define X_SERIAL_RX_PIN X_SERIAL_TX_PIN
#endif
#ifndef Y_SERIAL_TX_PIN
#define Y_SERIAL_TX_PIN P0_00
#endif
#ifndef Y_SERIAL_RX_PIN
- #define Y_SERIAL_RX_PIN P0_00
+ #define Y_SERIAL_RX_PIN Y_SERIAL_TX_PIN
#endif
#ifndef Z_SERIAL_TX_PIN
#define Z_SERIAL_TX_PIN P2_13
#endif
#ifndef Z_SERIAL_RX_PIN
- #define Z_SERIAL_RX_PIN P2_13
+ #define Z_SERIAL_RX_PIN Z_SERIAL_TX_PIN
#endif
#ifndef E0_SERIAL_TX_PIN
#define E0_SERIAL_TX_PIN P2_08
#endif
#ifndef E0_SERIAL_RX_PIN
- #define E0_SERIAL_RX_PIN P2_08
+ #define E0_SERIAL_RX_PIN E0_SERIAL_TX_PIN
#endif
// Reduce baud rate to improve software serial reliability
diff --git a/Marlin/src/pins/lpc1769/pins_BTT_SKR_E3_TURBO.h b/Marlin/src/pins/lpc1769/pins_BTT_SKR_E3_TURBO.h
index cecb44efbe1..44ceb9b7cc8 100644
--- a/Marlin/src/pins/lpc1769/pins_BTT_SKR_E3_TURBO.h
+++ b/Marlin/src/pins/lpc1769/pins_BTT_SKR_E3_TURBO.h
@@ -129,23 +129,20 @@
* If undefined software serial is used according to the pins below
*/
- //
- // Software serial
- //
#define X_SERIAL_TX_PIN P1_01
- #define X_SERIAL_RX_PIN P1_01
+ #define X_SERIAL_RX_PIN X_SERIAL_TX_PIN
#define Y_SERIAL_TX_PIN P1_10
- #define Y_SERIAL_RX_PIN P1_10
+ #define Y_SERIAL_RX_PIN Y_SERIAL_TX_PIN
#define Z_SERIAL_TX_PIN P1_17
- #define Z_SERIAL_RX_PIN P1_17
+ #define Z_SERIAL_RX_PIN Z_SERIAL_TX_PIN
#define E0_SERIAL_TX_PIN P0_05
- #define E0_SERIAL_RX_PIN P0_05
+ #define E0_SERIAL_RX_PIN E0_SERIAL_TX_PIN
#define E1_SERIAL_TX_PIN P0_22
- #define E1_SERIAL_RX_PIN P0_22
+ #define E1_SERIAL_RX_PIN E1_SERIAL_TX_PIN
// Reduce baud rate to improve software serial reliability
#define TMC_BAUD_RATE 19200
diff --git a/Marlin/src/pins/lpc1769/pins_FLY_CDY.h b/Marlin/src/pins/lpc1769/pins_FLY_CDY.h
index b90443403cc..535fb32e3ee 100644
--- a/Marlin/src/pins/lpc1769/pins_FLY_CDY.h
+++ b/Marlin/src/pins/lpc1769/pins_FLY_CDY.h
@@ -104,22 +104,22 @@
#if HAS_TMC_UART
#define X_SERIAL_TX_PIN P1_04
- #define X_SERIAL_RX_PIN P1_04
+ #define X_SERIAL_RX_PIN X_SERIAL_TX_PIN
#define Y_SERIAL_TX_PIN P1_10
- #define Y_SERIAL_RX_PIN P1_10
+ #define Y_SERIAL_RX_PIN Y_SERIAL_TX_PIN
#define Z_SERIAL_TX_PIN P1_16
- #define Z_SERIAL_RX_PIN P1_16
+ #define Z_SERIAL_RX_PIN Z_SERIAL_TX_PIN
#define E0_SERIAL_TX_PIN P4_28
- #define E0_SERIAL_RX_PIN P4_28
+ #define E0_SERIAL_RX_PIN E0_SERIAL_TX_PIN
#define E1_SERIAL_TX_PIN P2_12
- #define E1_SERIAL_RX_PIN P2_12
+ #define E1_SERIAL_RX_PIN E1_SERIAL_TX_PIN
#define E2_SERIAL_TX_PIN P0_10
- #define E2_SERIAL_RX_PIN P0_10
+ #define E2_SERIAL_RX_PIN E2_SERIAL_TX_PIN
// Reduce baud rate to improve software serial reliability
#define TMC_BAUD_RATE 19200
diff --git a/Marlin/src/pins/lpc1769/pins_MKS_SGEN.h b/Marlin/src/pins/lpc1769/pins_MKS_SGEN.h
index ddfee63cd08..f5c158162cd 100644
--- a/Marlin/src/pins/lpc1769/pins_MKS_SGEN.h
+++ b/Marlin/src/pins/lpc1769/pins_MKS_SGEN.h
@@ -38,17 +38,20 @@
/**
* TMC2208/TMC2209 stepper drivers
*/
-
#define X_SERIAL_TX_PIN P1_22 // J8-2
- #define X_SERIAL_RX_PIN P1_22 // J8-2
+ #define X_SERIAL_RX_PIN X_SERIAL_TX_PIN
+
#define Y_SERIAL_TX_PIN P1_23 // J8-3
- #define Y_SERIAL_RX_PIN P1_23 // J8-3
+ #define Y_SERIAL_RX_PIN Y_SERIAL_TX_PIN
+
#define Z_SERIAL_TX_PIN P2_12 // J8-4
- #define Z_SERIAL_RX_PIN P2_12 // J8-4
+ #define Z_SERIAL_RX_PIN Z_SERIAL_TX_PIN
+
#define E0_SERIAL_TX_PIN P2_11 // J8-5
- #define E0_SERIAL_RX_PIN P2_11 // J8-5
+ #define E0_SERIAL_RX_PIN E0_SERIAL_TX_PIN
+
#define E1_SERIAL_TX_PIN P4_28 // J8-6
- #define E1_SERIAL_RX_PIN P4_28 // J8-6
+ #define E1_SERIAL_RX_PIN E1_SERIAL_TX_PIN
// Reduce baud rate to improve software serial reliability
#define TMC_BAUD_RATE 19200
diff --git a/Marlin/src/pins/lpc1769/pins_MKS_SGEN_L_V2.h b/Marlin/src/pins/lpc1769/pins_MKS_SGEN_L_V2.h
index 7547279bbda..ff7aa11dafe 100644
--- a/Marlin/src/pins/lpc1769/pins_MKS_SGEN_L_V2.h
+++ b/Marlin/src/pins/lpc1769/pins_MKS_SGEN_L_V2.h
@@ -173,19 +173,20 @@
//#define E3_HARDWARE_SERIAL Serial1
//#define E4_HARDWARE_SERIAL Serial1
- //
- // Software serial
- //
#define X_SERIAL_TX_PIN P1_01
- #define X_SERIAL_RX_PIN P1_01
+ #define X_SERIAL_RX_PIN X_SERIAL_TX_PIN
+
#define Y_SERIAL_TX_PIN P1_08
- #define Y_SERIAL_RX_PIN P1_08
+ #define Y_SERIAL_RX_PIN Y_SERIAL_TX_PIN
+
#define Z_SERIAL_TX_PIN P1_10
- #define Z_SERIAL_RX_PIN P1_10
+ #define Z_SERIAL_RX_PIN Z_SERIAL_TX_PIN
+
#define E0_SERIAL_TX_PIN P1_15
- #define E0_SERIAL_RX_PIN P1_15
+ #define E0_SERIAL_RX_PIN E0_SERIAL_TX_PIN
+
#define E1_SERIAL_TX_PIN P1_17
- #define E1_SERIAL_RX_PIN P1_17
+ #define E1_SERIAL_RX_PIN E1_SERIAL_TX_PIN
// Reduce baud rate to improve software serial reliability
#define TMC_BAUD_RATE 19200
diff --git a/Marlin/src/pins/lpc1769/pins_TH3D_EZBOARD.h b/Marlin/src/pins/lpc1769/pins_TH3D_EZBOARD.h
index 4d725bc7d16..e45f5dbd95e 100644
--- a/Marlin/src/pins/lpc1769/pins_TH3D_EZBOARD.h
+++ b/Marlin/src/pins/lpc1769/pins_TH3D_EZBOARD.h
@@ -75,14 +75,16 @@
#if HAS_TMC_UART
//
// TMC220x stepper drivers
- // Software serial
//
#define X_SERIAL_TX_PIN P0_04
#define X_SERIAL_RX_PIN P0_05
+
#define Y_SERIAL_TX_PIN P0_10
#define Y_SERIAL_RX_PIN P0_11
+
#define Z_SERIAL_TX_PIN P0_19
#define Z_SERIAL_RX_PIN P0_20
+
#define E0_SERIAL_TX_PIN P0_22
#define E0_SERIAL_RX_PIN P0_21
diff --git a/Marlin/src/pins/ramps/pins_FYSETC_F6_13.h b/Marlin/src/pins/ramps/pins_FYSETC_F6_13.h
index 8756a332180..9c6b74f1269 100644
--- a/Marlin/src/pins/ramps/pins_FYSETC_F6_13.h
+++ b/Marlin/src/pins/ramps/pins_FYSETC_F6_13.h
@@ -124,42 +124,42 @@
* Software serial communication pins.
* At the moment, F6 rx pins are not pc interrupt pins
*/
- #ifndef X_SERIAL_RX_PIN
- #define X_SERIAL_RX_PIN -1 // 71
- #endif
#ifndef X_SERIAL_TX_PIN
#define X_SERIAL_TX_PIN 72
#endif
- #ifndef Y_SERIAL_RX_PIN
- #define Y_SERIAL_RX_PIN -1 // 73
+ #ifndef X_SERIAL_RX_PIN
+ #define X_SERIAL_RX_PIN -1 // 71
#endif
#ifndef Y_SERIAL_TX_PIN
#define Y_SERIAL_TX_PIN 75
#endif
- #ifndef Z_SERIAL_RX_PIN
- #define Z_SERIAL_RX_PIN -1 // 78
+ #ifndef Y_SERIAL_RX_PIN
+ #define Y_SERIAL_RX_PIN -1 // 73
#endif
#ifndef Z_SERIAL_TX_PIN
#define Z_SERIAL_TX_PIN 79
#endif
- #ifndef E0_SERIAL_RX_PIN
- #define E0_SERIAL_RX_PIN -1 // 76
+ #ifndef Z_SERIAL_RX_PIN
+ #define Z_SERIAL_RX_PIN -1 // 78
#endif
#ifndef E0_SERIAL_TX_PIN
#define E0_SERIAL_TX_PIN 77
#endif
- #ifndef E1_SERIAL_RX_PIN
- #define E1_SERIAL_RX_PIN -1 // 80
+ #ifndef E0_SERIAL_RX_PIN
+ #define E0_SERIAL_RX_PIN -1 // 76
#endif
#ifndef E1_SERIAL_TX_PIN
#define E1_SERIAL_TX_PIN 81
#endif
- #ifndef E2_SERIAL_RX_PIN
- #define E2_SERIAL_RX_PIN -1 // 22
+ #ifndef E1_SERIAL_RX_PIN
+ #define E1_SERIAL_RX_PIN -1 // 80
#endif
#ifndef E2_SERIAL_TX_PIN
#define E2_SERIAL_TX_PIN 82
#endif
+ #ifndef E2_SERIAL_RX_PIN
+ #define E2_SERIAL_RX_PIN -1 // 22
+ #endif
#endif
//
diff --git a/Marlin/src/pins/ramps/pins_FYSETC_F6_14.h b/Marlin/src/pins/ramps/pins_FYSETC_F6_14.h
index 4280204b99d..1fc24154b73 100644
--- a/Marlin/src/pins/ramps/pins_FYSETC_F6_14.h
+++ b/Marlin/src/pins/ramps/pins_FYSETC_F6_14.h
@@ -33,18 +33,23 @@
/**
* TMC2208/TMC2209 stepper drivers
*/
- #define X_SERIAL_RX_PIN 72
#define X_SERIAL_TX_PIN 71
- #define Y_SERIAL_RX_PIN 73
+ #define X_SERIAL_RX_PIN 72
+
#define Y_SERIAL_TX_PIN 78
- #define Z_SERIAL_RX_PIN 75
+ #define Y_SERIAL_RX_PIN 73
+
#define Z_SERIAL_TX_PIN 79
- #define E0_SERIAL_RX_PIN 77
+ #define Z_SERIAL_RX_PIN 75
+
#define E0_SERIAL_TX_PIN 81
- #define E1_SERIAL_RX_PIN 76
+ #define E0_SERIAL_RX_PIN 77
+
#define E1_SERIAL_TX_PIN 80
- #define E2_SERIAL_RX_PIN 62
+ #define E1_SERIAL_RX_PIN 76
+
#define E2_SERIAL_TX_PIN 82
+ #define E2_SERIAL_RX_PIN 62
#endif
#include "pins_FYSETC_F6_13.h"
diff --git a/Marlin/src/pins/ramps/pins_ORTUR_4.h b/Marlin/src/pins/ramps/pins_ORTUR_4.h
index e79973e06f0..428279c92ab 100644
--- a/Marlin/src/pins/ramps/pins_ORTUR_4.h
+++ b/Marlin/src/pins/ramps/pins_ORTUR_4.h
@@ -54,20 +54,19 @@
#define TEMP_0_PIN 15 // Analog Input
#define TEMP_1_PIN 13 // Analog Input
-//
-// Software serial
-//
-#define X_SERIAL_TX_PIN 59
-#define X_SERIAL_RX_PIN 63
+#if HAS_TMC_UART
+ #define X_SERIAL_TX_PIN 59
+ #define X_SERIAL_RX_PIN 63
-#define Y_SERIAL_TX_PIN 64
-#define Y_SERIAL_RX_PIN 40
+ #define Y_SERIAL_TX_PIN 64
+ #define Y_SERIAL_RX_PIN 40
-#define Z_SERIAL_TX_PIN 44
-#define Z_SERIAL_RX_PIN 42
+ #define Z_SERIAL_TX_PIN 44
+ #define Z_SERIAL_RX_PIN 42
-#define E0_SERIAL_TX_PIN 66
-#define E0_SERIAL_RX_PIN 65
+ #define E0_SERIAL_TX_PIN 66
+ #define E0_SERIAL_RX_PIN 65
+#endif
#include "pins_RAMPS.h"
diff --git a/Marlin/src/pins/ramps/pins_RAMPS.h b/Marlin/src/pins/ramps/pins_RAMPS.h
index 2c271408b0c..b141fdbf85d 100644
--- a/Marlin/src/pins/ramps/pins_RAMPS.h
+++ b/Marlin/src/pins/ramps/pins_RAMPS.h
@@ -321,10 +321,6 @@
//#define E3_HARDWARE_SERIAL Serial1
//#define E4_HARDWARE_SERIAL Serial1
- //
- // Software serial
- //
-
#ifndef X_SERIAL_TX_PIN
#define X_SERIAL_TX_PIN 40
#endif
diff --git a/Marlin/src/pins/ramps/pins_TT_OSCAR.h b/Marlin/src/pins/ramps/pins_TT_OSCAR.h
index 57a9a560d35..a43f10fc93c 100644
--- a/Marlin/src/pins/ramps/pins_TT_OSCAR.h
+++ b/Marlin/src/pins/ramps/pins_TT_OSCAR.h
@@ -117,10 +117,6 @@
//#define E3_HARDWARE_SERIAL Serial1
//#define E3_HARDWARE_SERIAL Serial1
- //
- // Software serial
- //
-
#define X_SERIAL_TX_PIN -1 // 59
#define X_SERIAL_RX_PIN -1 // 63
#define X2_SERIAL_TX_PIN -1
diff --git a/Marlin/src/pins/ramps/pins_Z_BOLT_X_SERIES.h b/Marlin/src/pins/ramps/pins_Z_BOLT_X_SERIES.h
index 26ad5fd6580..feaa4ba98b9 100644
--- a/Marlin/src/pins/ramps/pins_Z_BOLT_X_SERIES.h
+++ b/Marlin/src/pins/ramps/pins_Z_BOLT_X_SERIES.h
@@ -213,10 +213,6 @@
//#define E3_HARDWARE_SERIAL Serial1
//#define E4_HARDWARE_SERIAL Serial1
- //
- // Software serial
- //
-
#ifndef X_SERIAL_TX_PIN
#define X_SERIAL_TX_PIN 40
#endif
diff --git a/Marlin/src/pins/samd/pins_RAMPS_144.h b/Marlin/src/pins/samd/pins_RAMPS_144.h
index fbd9d7c8641..449ae0273e2 100644
--- a/Marlin/src/pins/samd/pins_RAMPS_144.h
+++ b/Marlin/src/pins/samd/pins_RAMPS_144.h
@@ -194,60 +194,56 @@
//#define E0_HARDWARE_SERIAL Serial1
//#define E1_HARDWARE_SERIAL Serial1
- //
- // Software serial
- //
-
#ifndef X_SERIAL_TX_PIN
#define X_SERIAL_TX_PIN 47
#endif
#ifndef X_SERIAL_RX_PIN
- #define X_SERIAL_RX_PIN 47
+ #define X_SERIAL_RX_PIN X_SERIAL_TX_PIN
#endif
#ifndef X2_SERIAL_TX_PIN
#define X2_SERIAL_TX_PIN -1
#endif
#ifndef X2_SERIAL_RX_PIN
- #define X2_SERIAL_RX_PIN -1
+ #define X2_SERIAL_RX_PIN X2_SERIAL_TX_PIN
#endif
#ifndef Y_SERIAL_TX_PIN
#define Y_SERIAL_TX_PIN 45
#endif
#ifndef Y_SERIAL_RX_PIN
- #define Y_SERIAL_RX_PIN 45
+ #define Y_SERIAL_RX_PIN Y_SERIAL_TX_PIN
#endif
#ifndef Y2_SERIAL_TX_PIN
#define Y2_SERIAL_TX_PIN -1
#endif
#ifndef Y2_SERIAL_RX_PIN
- #define Y2_SERIAL_RX_PIN -1
+ #define Y2_SERIAL_RX_PIN Y2_SERIAL_TX_PIN
#endif
#ifndef Z_SERIAL_TX_PIN
#define Z_SERIAL_TX_PIN 32
#endif
#ifndef Z_SERIAL_RX_PIN
- #define Z_SERIAL_RX_PIN 32
+ #define Z_SERIAL_RX_PIN Z_SERIAL_TX_PIN
#endif
#ifndef Z2_SERIAL_TX_PIN
#define Z2_SERIAL_TX_PIN 22
#endif
#ifndef Z2_SERIAL_RX_PIN
- #define Z2_SERIAL_RX_PIN 22
+ #define Z2_SERIAL_RX_PIN Z2_SERIAL_TX_PIN
#endif
#ifndef E0_SERIAL_TX_PIN
#define E0_SERIAL_TX_PIN 43
#endif
#ifndef E0_SERIAL_RX_PIN
- #define E0_SERIAL_RX_PIN 43
+ #define E0_SERIAL_RX_PIN E0_SERIAL_TX_PIN
#endif
#ifndef E1_SERIAL_TX_PIN
#define E1_SERIAL_TX_PIN -1
#endif
#ifndef E1_SERIAL_RX_PIN
- #define E1_SERIAL_RX_PIN -1
+ #define E1_SERIAL_RX_PIN E1_SERIAL_TX_PIN
#endif
#endif
diff --git a/Marlin/src/pins/stm32f1/pins_BTT_SKR_E3_DIP.h b/Marlin/src/pins/stm32f1/pins_BTT_SKR_E3_DIP.h
index 9b71570b083..6ed2869141a 100644
--- a/Marlin/src/pins/stm32f1/pins_BTT_SKR_E3_DIP.h
+++ b/Marlin/src/pins/stm32f1/pins_BTT_SKR_E3_DIP.h
@@ -120,20 +120,17 @@
//#define Z_HARDWARE_SERIAL MSerial1
//#define E0_HARDWARE_SERIAL MSerial1
- //
- // Software serial
- //
#define X_SERIAL_TX_PIN PC10
- #define X_SERIAL_RX_PIN PC10
+ #define X_SERIAL_RX_PIN X_SERIAL_TX_PIN
#define Y_SERIAL_TX_PIN PC11
- #define Y_SERIAL_RX_PIN PC11
+ #define Y_SERIAL_RX_PIN Y_SERIAL_TX_PIN
#define Z_SERIAL_TX_PIN PC12
- #define Z_SERIAL_RX_PIN PC12
+ #define Z_SERIAL_RX_PIN Z_SERIAL_TX_PIN
#define E0_SERIAL_TX_PIN PD2
- #define E0_SERIAL_RX_PIN PD2
+ #define E0_SERIAL_RX_PIN E0_SERIAL_TX_PIN
// Reduce baud rate to improve software serial reliability
#define TMC_BAUD_RATE 19200
diff --git a/Marlin/src/pins/stm32f1/pins_BTT_SKR_MINI_E3_V1_2.h b/Marlin/src/pins/stm32f1/pins_BTT_SKR_MINI_E3_V1_2.h
index 4951d697a72..44d4f234354 100644
--- a/Marlin/src/pins/stm32f1/pins_BTT_SKR_MINI_E3_V1_2.h
+++ b/Marlin/src/pins/stm32f1/pins_BTT_SKR_MINI_E3_V1_2.h
@@ -33,20 +33,17 @@
* TMC2208/TMC2209 stepper drivers
*/
#if HAS_TMC_UART
- //
- // Software serial
- //
#define X_SERIAL_TX_PIN PB15
- #define X_SERIAL_RX_PIN PB15
+ #define X_SERIAL_RX_PIN X_SERIAL_TX_PIN
#define Y_SERIAL_TX_PIN PC6
- #define Y_SERIAL_RX_PIN PC6
+ #define Y_SERIAL_RX_PIN Y_SERIAL_TX_PIN
#define Z_SERIAL_TX_PIN PC10
- #define Z_SERIAL_RX_PIN PC10
+ #define Z_SERIAL_RX_PIN Z_SERIAL_TX_PIN
#define E0_SERIAL_TX_PIN PC11
- #define E0_SERIAL_RX_PIN PC11
+ #define E0_SERIAL_RX_PIN E0_SERIAL_TX_PIN
// Reduce baud rate to improve software serial reliability
#define TMC_BAUD_RATE 19200
diff --git a/Marlin/src/pins/stm32f1/pins_CCROBOT_MEEB_3DP.h b/Marlin/src/pins/stm32f1/pins_CCROBOT_MEEB_3DP.h
index dc8b8c50f16..7b61f55d4f1 100644
--- a/Marlin/src/pins/stm32f1/pins_CCROBOT_MEEB_3DP.h
+++ b/Marlin/src/pins/stm32f1/pins_CCROBOT_MEEB_3DP.h
@@ -84,15 +84,20 @@
#define E0_STEP_PIN PA6
#define E0_DIR_PIN PA5
-// Stepper drivers Serial UART
-#define X_SERIAL_TX_PIN PB3
-#define X_SERIAL_RX_PIN PD2
-#define Y_SERIAL_TX_PIN PA15
-#define Y_SERIAL_RX_PIN PC6
-#define Z_SERIAL_TX_PIN PB11
-#define Z_SERIAL_RX_PIN PB10
-#define E0_SERIAL_TX_PIN PC5
-#define E0_SERIAL_RX_PIN PC4
+#if HAS_TMC_UART
+ // Stepper drivers Serial UART
+ #define X_SERIAL_TX_PIN PB3
+ #define X_SERIAL_RX_PIN PD2
+
+ #define Y_SERIAL_TX_PIN PA15
+ #define Y_SERIAL_RX_PIN PC6
+
+ #define Z_SERIAL_TX_PIN PB11
+ #define Z_SERIAL_RX_PIN PB10
+
+ #define E0_SERIAL_TX_PIN PC5
+ #define E0_SERIAL_RX_PIN PC4
+#endif
// Reduce baud rate to improve software serial reliability
#define TMC_BAUD_RATE 19200
diff --git a/Marlin/src/pins/stm32f1/pins_FLSUN_HISPEED.h b/Marlin/src/pins/stm32f1/pins_FLSUN_HISPEED.h
index 21bbd23ca9f..f850b4a90b0 100644
--- a/Marlin/src/pins/stm32f1/pins_FLSUN_HISPEED.h
+++ b/Marlin/src/pins/stm32f1/pins_FLSUN_HISPEED.h
@@ -124,11 +124,11 @@
// SoftwareSerial with one pin per driver
// Compatible with TMC2208 and TMC2209 drivers
#define X_SERIAL_TX_PIN PA10 // RXD1
- #define X_SERIAL_RX_PIN PA10 // RXD1
+ #define X_SERIAL_RX_PIN X_SERIAL_TX_PIN
#define Y_SERIAL_TX_PIN PA9 // TXD1
- #define Y_SERIAL_RX_PIN PA9 // TXD1
+ #define Y_SERIAL_RX_PIN Y_SERIAL_TX_PIN
#define Z_SERIAL_TX_PIN PC7 // IO1
- #define Z_SERIAL_RX_PIN PC7 // IO1
+ #define Z_SERIAL_RX_PIN Z_SERIAL_TX_PIN
#define TMC_BAUD_RATE 19200
#else
// Motor current PWM pins
diff --git a/Marlin/src/pins/stm32f1/pins_FLY_MINI.h b/Marlin/src/pins/stm32f1/pins_FLY_MINI.h
index be0a622b1d7..08efa9a04e1 100644
--- a/Marlin/src/pins/stm32f1/pins_FLY_MINI.h
+++ b/Marlin/src/pins/stm32f1/pins_FLY_MINI.h
@@ -94,17 +94,14 @@
#endif
#if HAS_TMC_UART
- //
- // Software serial
- //
#define X_SERIAL_TX_PIN PB0
- #define X_SERIAL_RX_PIN PB0
+ #define X_SERIAL_RX_PIN X_SERIAL_TX_PIN
#define Y_SERIAL_TX_PIN PA7
- #define Y_SERIAL_RX_PIN PA7
+ #define Y_SERIAL_RX_PIN Y_SERIAL_TX_PIN
#define Z_SERIAL_TX_PIN PA4
- #define Z_SERIAL_RX_PIN PA4
+ #define Z_SERIAL_RX_PIN Z_SERIAL_TX_PIN
#define E0_SERIAL_TX_PIN PC2
- #define E0_SERIAL_RX_PIN PC2
+ #define E0_SERIAL_RX_PIN E0_SERIAL_TX_PIN
#endif
//
diff --git a/Marlin/src/pins/stm32f1/pins_FYSETC_CHEETAH_V12.h b/Marlin/src/pins/stm32f1/pins_FYSETC_CHEETAH_V12.h
index ba35265d10a..120d6d6f0a7 100644
--- a/Marlin/src/pins/stm32f1/pins_FYSETC_CHEETAH_V12.h
+++ b/Marlin/src/pins/stm32f1/pins_FYSETC_CHEETAH_V12.h
@@ -42,9 +42,6 @@
* TMC2208/TMC2209 stepper drivers
*/
- //
- // Software serial
- //
#define X_SERIAL_TX_PIN PA11
#define X_SERIAL_RX_PIN PA12
diff --git a/Marlin/src/pins/stm32f1/pins_MKS_ROBIN.h b/Marlin/src/pins/stm32f1/pins_MKS_ROBIN.h
index 889e1f5e07b..29baeba934f 100644
--- a/Marlin/src/pins/stm32f1/pins_MKS_ROBIN.h
+++ b/Marlin/src/pins/stm32f1/pins_MKS_ROBIN.h
@@ -258,12 +258,12 @@
//#define TMC_SOFTWARE_SERIAL
#if ENABLED(TMC_SOFTWARE_SERIAL)
#define X_SERIAL_TX_PIN PF8 // SERVO3_PIN -- XS2 - 6
- #define Y_SERIAL_TX_PIN PF9 // SERVO2_PIN -- XS2 - 5
- #define Z_SERIAL_TX_PIN PA1 // SERVO1_PIN -- XS1 - 6
- #define E0_SERIAL_TX_PIN PC3 // SERVO0_PIN -- XS1 - 5
#define X_SERIAL_RX_PIN X_SERIAL_TX_PIN
+ #define Y_SERIAL_TX_PIN PF9 // SERVO2_PIN -- XS2 - 5
#define Y_SERIAL_RX_PIN Y_SERIAL_TX_PIN
+ #define Z_SERIAL_TX_PIN PA1 // SERVO1_PIN -- XS1 - 6
#define Z_SERIAL_RX_PIN Z_SERIAL_TX_PIN
+ #define E0_SERIAL_TX_PIN PC3 // SERVO0_PIN -- XS1 - 5
#define E0_SERIAL_RX_PIN E0_SERIAL_TX_PIN
#define TMC_BAUD_RATE 19200
#endif
diff --git a/Marlin/src/pins/stm32f1/pins_MKS_ROBIN_E3P.h b/Marlin/src/pins/stm32f1/pins_MKS_ROBIN_E3P.h
index ba519800651..2cfb71380d3 100644
--- a/Marlin/src/pins/stm32f1/pins_MKS_ROBIN_E3P.h
+++ b/Marlin/src/pins/stm32f1/pins_MKS_ROBIN_E3P.h
@@ -145,10 +145,6 @@
//#define E3_HARDWARE_SERIAL Serial1
//#define E4_HARDWARE_SERIAL Serial1
- //
- // Software serial
- //
-
#define X_SERIAL_TX_PIN PD5
#define X_SERIAL_RX_PIN PD5
diff --git a/Marlin/src/pins/stm32f1/pins_MKS_ROBIN_E3_common.h b/Marlin/src/pins/stm32f1/pins_MKS_ROBIN_E3_common.h
index d522e683da8..2d8b0abce48 100644
--- a/Marlin/src/pins/stm32f1/pins_MKS_ROBIN_E3_common.h
+++ b/Marlin/src/pins/stm32f1/pins_MKS_ROBIN_E3_common.h
@@ -92,9 +92,6 @@
//#define Z_HARDWARE_SERIAL MSerial1
//#define E0_HARDWARE_SERIAL MSerial1
- //
- // Software serial
- //
#define X_SERIAL_TX_PIN PC7
#define X_SERIAL_RX_PIN PC7
diff --git a/Marlin/src/pins/stm32f1/pins_MKS_ROBIN_NANO_V2.h b/Marlin/src/pins/stm32f1/pins_MKS_ROBIN_NANO_V2.h
index 97474446524..0c59c6d7eae 100644
--- a/Marlin/src/pins/stm32f1/pins_MKS_ROBIN_NANO_V2.h
+++ b/Marlin/src/pins/stm32f1/pins_MKS_ROBIN_NANO_V2.h
@@ -146,10 +146,6 @@
//#define E0_HARDWARE_SERIAL MSerial1
//#define E1_HARDWARE_SERIAL MSerial1
- //
- // Software serial
- //
-
#define X_SERIAL_TX_PIN PD5
#define X_SERIAL_RX_PIN PD5
diff --git a/Marlin/src/pins/stm32f1/pins_MKS_ROBIN_PRO.h b/Marlin/src/pins/stm32f1/pins_MKS_ROBIN_PRO.h
index d752d52a3a3..1f3efee6e56 100644
--- a/Marlin/src/pins/stm32f1/pins_MKS_ROBIN_PRO.h
+++ b/Marlin/src/pins/stm32f1/pins_MKS_ROBIN_PRO.h
@@ -133,9 +133,6 @@
//#define E1_HARDWARE_SERIAL MSerial1
//#define E2_HARDWARE_SERIAL MSerial1
- //
- // Software serial
- //
#define X_SERIAL_TX_PIN PF7
#define X_SERIAL_RX_PIN PF8
diff --git a/Marlin/src/pins/stm32f4/pins_ARMED.h b/Marlin/src/pins/stm32f4/pins_ARMED.h
index a67af089f20..4d0369b044f 100644
--- a/Marlin/src/pins/stm32f4/pins_ARMED.h
+++ b/Marlin/src/pins/stm32f4/pins_ARMED.h
@@ -204,9 +204,6 @@
#if HAS_TMC_UART
// TMC2208/TMC2209 stepper drivers
- //
- // Software serial
- //
#define X_SERIAL_TX_PIN EXT0_PIN
#define X_SERIAL_RX_PIN EXT0_PIN
diff --git a/Marlin/src/pins/stm32f4/pins_BTT_BTT002_V1_0.h b/Marlin/src/pins/stm32f4/pins_BTT_BTT002_V1_0.h
index 2bfbb194270..79a414d7d46 100644
--- a/Marlin/src/pins/stm32f4/pins_BTT_BTT002_V1_0.h
+++ b/Marlin/src/pins/stm32f4/pins_BTT_BTT002_V1_0.h
@@ -137,20 +137,17 @@
//#define E3_HARDWARE_SERIAL Serial1
//#define E4_HARDWARE_SERIAL Serial1
- //
- // Software serial ##
- //
#define X_SERIAL_TX_PIN PE2
- #define X_SERIAL_RX_PIN PE2
+ #define X_SERIAL_RX_PIN X_SERIAL_TX_PIN
#define Y_SERIAL_TX_PIN PE3
- #define Y_SERIAL_RX_PIN PE3
+ #define Y_SERIAL_RX_PIN Y_SERIAL_TX_PIN
#define Z_SERIAL_TX_PIN PE4
- #define Z_SERIAL_RX_PIN PE4
+ #define Z_SERIAL_RX_PIN Z_SERIAL_TX_PIN
#define E0_SERIAL_TX_PIN PD7
- #define E0_SERIAL_RX_PIN PD7
+ #define E0_SERIAL_RX_PIN E0_SERIAL_TX_PIN
// Reduce baud rate to improve software serial reliability
#define TMC_BAUD_RATE 19200
diff --git a/Marlin/src/pins/stm32f4/pins_BTT_E3_RRF.h b/Marlin/src/pins/stm32f4/pins_BTT_E3_RRF.h
index a806611c18f..481c38f5152 100644
--- a/Marlin/src/pins/stm32f4/pins_BTT_E3_RRF.h
+++ b/Marlin/src/pins/stm32f4/pins_BTT_E3_RRF.h
@@ -112,27 +112,24 @@
* TMC2208/TMC2209 stepper drivers
*/
#if HAS_TMC_UART
- //
- // Software serial
- //
#define X_SERIAL_TX_PIN PD6
- #define X_SERIAL_RX_PIN PD6
+ #define X_SERIAL_RX_PIN X_SERIAL_TX_PIN
#define Y_SERIAL_TX_PIN PD1
- #define Y_SERIAL_RX_PIN PD1
+ #define Y_SERIAL_RX_PIN Y_SERIAL_TX_PIN
#define Z_SERIAL_TX_PIN PD15
- #define Z_SERIAL_RX_PIN PD15
+ #define Z_SERIAL_RX_PIN Z_SERIAL_TX_PIN
#define E0_SERIAL_TX_PIN PD11
- #define E0_SERIAL_RX_PIN PD11
+ #define E0_SERIAL_RX_PIN E0_SERIAL_TX_PIN
#if ENABLED(BTT_E3_RRF_IDEX_BOARD)
#define X2_SERIAL_TX_PIN FPC12_PIN // X2UART
- #define X2_SERIAL_RX_PIN FPC12_PIN // X2UART
+ #define X2_SERIAL_RX_PIN X2_SERIAL_TX_PIN
#define E1_SERIAL_TX_PIN FPC6_PIN // E1UART
- #define E1_SERIAL_RX_PIN FPC6_PIN // E1UART
+ #define E1_SERIAL_RX_PIN E1_SERIAL_TX_PIN
#endif
// Reduce baud rate to improve software serial reliability
diff --git a/Marlin/src/pins/stm32f4/pins_BTT_GTR_V1_0.h b/Marlin/src/pins/stm32f4/pins_BTT_GTR_V1_0.h
index 3151a38ae8f..fa49ff14955 100644
--- a/Marlin/src/pins/stm32f4/pins_BTT_GTR_V1_0.h
+++ b/Marlin/src/pins/stm32f4/pins_BTT_GTR_V1_0.h
@@ -239,42 +239,39 @@
//#define E6_HARDWARE_SERIAL Serial1 // M5 MOTOR 4
//#define E7_HARDWARE_SERIAL Serial1 // M5 MOTOR 5
- //
- // Software serial
- //
#define X_SERIAL_TX_PIN PC14
- #define X_SERIAL_RX_PIN PC14
+ #define X_SERIAL_RX_PIN X_SERIAL_TX_PIN
#define Y_SERIAL_TX_PIN PE1
- #define Y_SERIAL_RX_PIN PE1
+ #define Y_SERIAL_RX_PIN Y_SERIAL_TX_PIN
#define Z_SERIAL_TX_PIN PB5
- #define Z_SERIAL_RX_PIN PB5
+ #define Z_SERIAL_RX_PIN Z_SERIAL_TX_PIN
#define E0_SERIAL_TX_PIN PG10
- #define E0_SERIAL_RX_PIN PG10
+ #define E0_SERIAL_RX_PIN E0_SERIAL_TX_PIN
#define E1_SERIAL_TX_PIN PD4
- #define E1_SERIAL_RX_PIN PD4
+ #define E1_SERIAL_RX_PIN E1_SERIAL_TX_PIN
#define E2_SERIAL_TX_PIN PC12
- #define E2_SERIAL_RX_PIN PC12
+ #define E2_SERIAL_RX_PIN E2_SERIAL_TX_PIN
#if ENABLED(M5_EXTENDER)
#define E3_SERIAL_TX_PIN PG4
- #define E3_SERIAL_RX_PIN PG4
+ #define E3_SERIAL_RX_PIN E3_SERIAL_TX_PIN
#define E4_SERIAL_TX_PIN PE15
- #define E4_SERIAL_RX_PIN PE15
+ #define E4_SERIAL_RX_PIN E4_SERIAL_TX_PIN
#define E5_SERIAL_TX_PIN PE7
- #define E5_SERIAL_RX_PIN PE7
+ #define E5_SERIAL_RX_PIN E5_SERIAL_TX_PIN
#define E6_SERIAL_TX_PIN PF15
- #define E6_SERIAL_RX_PIN PF15
+ #define E6_SERIAL_RX_PIN E6_SERIAL_TX_PIN
#define E7_SERIAL_TX_PIN PH14
- #define E7_SERIAL_RX_PIN PH14
+ #define E7_SERIAL_RX_PIN E7_SERIAL_TX_PIN
#endif
// Reduce baud rate to improve software serial reliability
diff --git a/Marlin/src/pins/stm32f4/pins_BTT_OCTOPUS_V1_common.h b/Marlin/src/pins/stm32f4/pins_BTT_OCTOPUS_V1_common.h
index 25622bc62d8..92e7b5d3749 100644
--- a/Marlin/src/pins/stm32f4/pins_BTT_OCTOPUS_V1_common.h
+++ b/Marlin/src/pins/stm32f4/pins_BTT_OCTOPUS_V1_common.h
@@ -282,32 +282,29 @@
//#define E3_HARDWARE_SERIAL Serial1
//#define E4_HARDWARE_SERIAL Serial1
- //
- // Software serial
- //
#define X_SERIAL_TX_PIN PC4
- #define X_SERIAL_RX_PIN PC4
+ #define X_SERIAL_RX_PIN X_SERIAL_TX_PIN
#define Y_SERIAL_TX_PIN PD11
- #define Y_SERIAL_RX_PIN PD11
+ #define Y_SERIAL_RX_PIN Y_SERIAL_TX_PIN
#define Z_SERIAL_TX_PIN PC6
- #define Z_SERIAL_RX_PIN PC6
+ #define Z_SERIAL_RX_PIN Z_SERIAL_TX_PIN
#define Z2_SERIAL_TX_PIN PC7
- #define Z2_SERIAL_RX_PIN PC7
+ #define Z2_SERIAL_RX_PIN Z2_SERIAL_TX_PIN
#define E0_SERIAL_TX_PIN PF2
- #define E0_SERIAL_RX_PIN PF2
+ #define E0_SERIAL_RX_PIN E0_SERIAL_TX_PIN
#define E1_SERIAL_TX_PIN PE4
- #define E1_SERIAL_RX_PIN PE4
+ #define E1_SERIAL_RX_PIN E1_SERIAL_TX_PIN
#define E2_SERIAL_TX_PIN PE1
- #define E2_SERIAL_RX_PIN PE1
+ #define E2_SERIAL_RX_PIN E2_SERIAL_TX_PIN
#define E3_SERIAL_TX_PIN PD3
- #define E3_SERIAL_RX_PIN PD3
+ #define E3_SERIAL_RX_PIN E3_SERIAL_TX_PIN
// Reduce baud rate to improve software serial reliability
#define TMC_BAUD_RATE 19200
@@ -387,7 +384,7 @@
#define E4_CS_PIN EXP1_05_PIN
#if HAS_TMC_UART
#define E4_SERIAL_TX_PIN EXP1_05_PIN
- #define E4_SERIAL_RX_PIN EXP1_05_PIN
+ #define E4_SERIAL_RX_PIN E4_SERIAL_TX_PIN
#endif
// M2 on Driver Expansion Module
@@ -398,7 +395,7 @@
#define E5_CS_PIN EXP1_07_PIN
#if HAS_TMC_UART
#define E5_SERIAL_TX_PIN EXP1_07_PIN
- #define E5_SERIAL_RX_PIN EXP1_07_PIN
+ #define E5_SERIAL_RX_PIN E5_SERIAL_TX_PIN
#endif
// M3 on Driver Expansion Module
@@ -409,7 +406,7 @@
#define E6_CS_PIN EXP1_09_PIN
#if HAS_TMC_UART
#define E6_SERIAL_TX_PIN EXP1_09_PIN
- #define E6_SERIAL_RX_PIN EXP1_09_PIN
+ #define E6_SERIAL_RX_PIN E6_SERIAL_TX_PIN
#endif
#endif // BTT_MOTOR_EXPANSION
diff --git a/Marlin/src/pins/stm32f4/pins_BTT_SKR_PRO_common.h b/Marlin/src/pins/stm32f4/pins_BTT_SKR_PRO_common.h
index eb3ce730a69..e43cc4e5a06 100644
--- a/Marlin/src/pins/stm32f4/pins_BTT_SKR_PRO_common.h
+++ b/Marlin/src/pins/stm32f4/pins_BTT_SKR_PRO_common.h
@@ -204,26 +204,23 @@
//#define E3_HARDWARE_SERIAL Serial1
//#define E4_HARDWARE_SERIAL Serial1
- //
- // Software serial
- //
#define X_SERIAL_TX_PIN PC13
- #define X_SERIAL_RX_PIN PC13
+ #define X_SERIAL_RX_PIN X_SERIAL_TX_PIN
#define Y_SERIAL_TX_PIN PE3
- #define Y_SERIAL_RX_PIN PE3
+ #define Y_SERIAL_RX_PIN Y_SERIAL_TX_PIN
#define Z_SERIAL_TX_PIN PE1
- #define Z_SERIAL_RX_PIN PE1
+ #define Z_SERIAL_RX_PIN Z_SERIAL_TX_PIN
#define E0_SERIAL_TX_PIN PD4
- #define E0_SERIAL_RX_PIN PD4
+ #define E0_SERIAL_RX_PIN E0_SERIAL_TX_PIN
#define E1_SERIAL_TX_PIN PD1
- #define E1_SERIAL_RX_PIN PD1
+ #define E1_SERIAL_RX_PIN E1_SERIAL_TX_PIN
#define E2_SERIAL_TX_PIN PD6
- #define E2_SERIAL_RX_PIN PD6
+ #define E2_SERIAL_RX_PIN E2_SERIAL_TX_PIN
// Reduce baud rate to improve software serial reliability
#define TMC_BAUD_RATE 19200
diff --git a/Marlin/src/pins/stm32f4/pins_BTT_SKR_V2_0_common.h b/Marlin/src/pins/stm32f4/pins_BTT_SKR_V2_0_common.h
index e5d6b6891b5..dc2ee99affc 100644
--- a/Marlin/src/pins/stm32f4/pins_BTT_SKR_V2_0_common.h
+++ b/Marlin/src/pins/stm32f4/pins_BTT_SKR_V2_0_common.h
@@ -267,23 +267,20 @@
//#define E3_HARDWARE_SERIAL Serial1
//#define E4_HARDWARE_SERIAL Serial1
- //
- // Software serial
- //
#define X_SERIAL_TX_PIN PE0
- #define X_SERIAL_RX_PIN PE0
+ #define X_SERIAL_RX_PIN X_SERIAL_TX_PIN
#define Y_SERIAL_TX_PIN PD3
- #define Y_SERIAL_RX_PIN PD3
+ #define Y_SERIAL_RX_PIN Y_SERIAL_TX_PIN
#define Z_SERIAL_TX_PIN PD0
- #define Z_SERIAL_RX_PIN PD0
+ #define Z_SERIAL_RX_PIN Z_SERIAL_TX_PIN
#define E0_SERIAL_TX_PIN PC6
- #define E0_SERIAL_RX_PIN PC6
+ #define E0_SERIAL_RX_PIN E0_SERIAL_TX_PIN
#define E1_SERIAL_TX_PIN PD12
- #define E1_SERIAL_RX_PIN PD12
+ #define E1_SERIAL_RX_PIN E1_SERIAL_TX_PIN
// Reduce baud rate to improve software serial reliability
#define TMC_BAUD_RATE 19200
diff --git a/Marlin/src/pins/stm32f4/pins_FLYF407ZG.h b/Marlin/src/pins/stm32f4/pins_FLYF407ZG.h
index 77257f818a5..728e7535439 100644
--- a/Marlin/src/pins/stm32f4/pins_FLYF407ZG.h
+++ b/Marlin/src/pins/stm32f4/pins_FLYF407ZG.h
@@ -234,32 +234,31 @@
#if HAS_TMC_UART
#define X_SERIAL_TX_PIN PG13
- #define X_SERIAL_RX_PIN PG13
+ #define X_SERIAL_RX_PIN X_SERIAL_TX_PIN
#define Y_SERIAL_TX_PIN PG10
- #define Y_SERIAL_RX_PIN PG10
+ #define Y_SERIAL_RX_PIN Y_SERIAL_TX_PIN
#define Z_SERIAL_TX_PIN PD5
- #define Z_SERIAL_RX_PIN PD5
+ #define Z_SERIAL_RX_PIN Z_SERIAL_TX_PIN
#define E0_SERIAL_TX_PIN PD1
- #define E0_SERIAL_RX_PIN PD1
+ #define E0_SERIAL_RX_PIN E0_SERIAL_TX_PIN
#define E1_SERIAL_TX_PIN PA14
- #define E1_SERIAL_RX_PIN PA14
+ #define E1_SERIAL_RX_PIN E1_SERIAL_TX_PIN
#define E2_SERIAL_TX_PIN PG6
- #define E2_SERIAL_RX_PIN PG6
+ #define E2_SERIAL_RX_PIN E2_SERIAL_TX_PIN
#define E3_SERIAL_TX_PIN PG3
- #define E3_SERIAL_RX_PIN PG3
+ #define E3_SERIAL_RX_PIN E3_SERIAL_TX_PIN
#define E4_SERIAL_TX_PIN PD10
- #define E4_SERIAL_RX_PIN PD10
+ #define E4_SERIAL_RX_PIN E4_SERIAL_TX_PIN
#define E5_SERIAL_TX_PIN PB12
- #define E5_SERIAL_RX_PIN PB12
-
+ #define E5_SERIAL_RX_PIN E5_SERIAL_TX_PIN
#endif
//
diff --git a/Marlin/src/pins/stm32f4/pins_FYSETC_S6.h b/Marlin/src/pins/stm32f4/pins_FYSETC_S6.h
index 492383048e0..986cd7feaa3 100644
--- a/Marlin/src/pins/stm32f4/pins_FYSETC_S6.h
+++ b/Marlin/src/pins/stm32f4/pins_FYSETC_S6.h
@@ -118,9 +118,6 @@
// TMC2208/TMC2209 stepper drivers
//
- //
- // Software serial
- //
#ifndef X_SERIAL_TX_PIN
#define X_SERIAL_TX_PIN PE9
#endif
diff --git a/Marlin/src/pins/stm32f4/pins_FYSETC_S6_V2_0.h b/Marlin/src/pins/stm32f4/pins_FYSETC_S6_V2_0.h
index 641805d855a..6f1c9be8f5b 100644
--- a/Marlin/src/pins/stm32f4/pins_FYSETC_S6_V2_0.h
+++ b/Marlin/src/pins/stm32f4/pins_FYSETC_S6_V2_0.h
@@ -40,7 +40,6 @@
#if HAS_TMC_UART
#define X_SERIAL_TX_PIN PE8
#define Y_SERIAL_TX_PIN PC4
- #define Y_SERIAL_RX_PIN PC4
#define Z_SERIAL_TX_PIN PD12
#define E0_SERIAL_TX_PIN PA15
#define E1_SERIAL_TX_PIN PC5
diff --git a/Marlin/src/pins/stm32f4/pins_FYSETC_SPIDER.h b/Marlin/src/pins/stm32f4/pins_FYSETC_SPIDER.h
index e90ac552aef..e05811552e2 100644
--- a/Marlin/src/pins/stm32f4/pins_FYSETC_SPIDER.h
+++ b/Marlin/src/pins/stm32f4/pins_FYSETC_SPIDER.h
@@ -76,21 +76,28 @@
#if HAS_TMC_UART
#define X_SERIAL_TX_PIN PE7
- #define X_SERIAL_RX_PIN PE7
- #define Y_SERIAL_TX_PIN PE15
- #define Y_SERIAL_RX_PIN PE15
- #define Z_SERIAL_TX_PIN PD10
- #define Z_SERIAL_RX_PIN PD10
- #define E0_SERIAL_TX_PIN PD7
- #define E0_SERIAL_RX_PIN PD7
- #define E1_SERIAL_TX_PIN PC14
- #define E1_SERIAL_RX_PIN PC14
- #define E2_SERIAL_TX_PIN PC15
- #define E2_SERIAL_RX_PIN PC15
+ #define X_SERIAL_RX_PIN X_SERIAL_TX_PIN
+
#define X2_SERIAL_TX_PIN PA15
- #define X2_SERIAL_RX_PIN PA15
+ #define X2_SERIAL_RX_PIN X2_SERIAL_TX_PIN
+
+ #define Y_SERIAL_TX_PIN PE15
+ #define Y_SERIAL_RX_PIN Y_SERIAL_TX_PIN
+
+ #define Z_SERIAL_TX_PIN PD10
+ #define Z_SERIAL_RX_PIN Z_SERIAL_TX_PIN
+
#define Z2_SERIAL_TX_PIN PD11
- #define Z2_SERIAL_RX_PIN PD11
+ #define Z2_SERIAL_RX_PIN Z2_SERIAL_TX_PIN
+
+ #define E0_SERIAL_TX_PIN PD7
+ #define E0_SERIAL_RX_PIN E0_SERIAL_TX_PIN
+
+ #define E1_SERIAL_TX_PIN PC14
+ #define E1_SERIAL_RX_PIN E1_SERIAL_TX_PIN
+
+ #define E2_SERIAL_TX_PIN PC15
+ #define E2_SERIAL_RX_PIN E2_SERIAL_TX_PIN
#endif
//
diff --git a/Marlin/src/pins/stm32f4/pins_LERDGE_K.h b/Marlin/src/pins/stm32f4/pins_LERDGE_K.h
index 3b75e7072ad..4adc2f65a2f 100644
--- a/Marlin/src/pins/stm32f4/pins_LERDGE_K.h
+++ b/Marlin/src/pins/stm32f4/pins_LERDGE_K.h
@@ -118,37 +118,37 @@
#define X_SERIAL_TX_PIN PB2
#endif
#ifndef X_SERIAL_RX_PIN
- #define X_SERIAL_RX_PIN PB2
+ #define X_SERIAL_RX_PIN X_SERIAL_TX_PIN
#endif
#ifndef Y_SERIAL_TX_PIN
#define Y_SERIAL_TX_PIN PE2
#endif
#ifndef Y_SERIAL_RX_PIN
- #define Y_SERIAL_RX_PIN PE2
+ #define Y_SERIAL_RX_PIN Y_SERIAL_TX_PIN
#endif
#ifndef Z_SERIAL_TX_PIN
#define Z_SERIAL_TX_PIN PE3
#endif
#ifndef Z_SERIAL_RX_PIN
- #define Z_SERIAL_RX_PIN PE3
+ #define Z_SERIAL_RX_PIN Z_SERIAL_TX_PIN
#endif
#ifndef E0_SERIAL_TX_PIN
#define E0_SERIAL_TX_PIN PE4
#endif
#ifndef E0_SERIAL_RX_PIN
- #define E0_SERIAL_RX_PIN PE4
+ #define E0_SERIAL_RX_PIN E0_SERIAL_TX_PIN
#endif
#ifndef E1_SERIAL_TX_PIN
#define E1_SERIAL_TX_PIN PE1
#endif
#ifndef E1_SERIAL_RX_PIN
- #define E1_SERIAL_RX_PIN PE1
+ #define E1_SERIAL_RX_PIN E1_SERIAL_TX_PIN
#endif
#ifndef EX_SERIAL_TX_PIN
#define E2_SERIAL_TX_PIN PE0
#endif
#ifndef EX_SERIAL_RX_PIN
- #define E2_SERIAL_RX_PIN PE0
+ #define E2_SERIAL_RX_PIN E2_SERIAL_TX_PIN
#endif
// Reduce baud rate to improve software serial reliability
#define TMC_BAUD_RATE 19200
diff --git a/Marlin/src/pins/stm32f4/pins_MKS_MONSTER8.h b/Marlin/src/pins/stm32f4/pins_MKS_MONSTER8.h
index 5c666856299..adc8b2a8bdb 100644
--- a/Marlin/src/pins/stm32f4/pins_MKS_MONSTER8.h
+++ b/Marlin/src/pins/stm32f4/pins_MKS_MONSTER8.h
@@ -160,28 +160,28 @@
// No Hardware serial for steppers
//
#define X_SERIAL_TX_PIN PE6
- #define X_SERIAL_RX_PIN PE6
+ #define X_SERIAL_RX_PIN X_SERIAL_TX_PIN
#define Y_SERIAL_TX_PIN PE3
- #define Y_SERIAL_RX_PIN PE3
+ #define Y_SERIAL_RX_PIN Y_SERIAL_TX_PIN
#define Z_SERIAL_TX_PIN PB7
- #define Z_SERIAL_RX_PIN PB7
+ #define Z_SERIAL_RX_PIN Z_SERIAL_TX_PIN
#define E0_SERIAL_TX_PIN PB3
- #define E0_SERIAL_RX_PIN PB3
+ #define E0_SERIAL_RX_PIN E0_SERIAL_TX_PIN
#define E1_SERIAL_TX_PIN PD4
- #define E1_SERIAL_RX_PIN PD4
+ #define E1_SERIAL_RX_PIN E1_SERIAL_TX_PIN
#define E2_SERIAL_TX_PIN PD0
- #define E2_SERIAL_RX_PIN PD0
+ #define E2_SERIAL_RX_PIN E2_SERIAL_TX_PIN
#define E3_SERIAL_TX_PIN PD15
- #define E3_SERIAL_RX_PIN PD15
+ #define E3_SERIAL_RX_PIN E3_SERIAL_TX_PIN
#define E4_SERIAL_TX_PIN PD11
- #define E4_SERIAL_RX_PIN PD11
+ #define E4_SERIAL_RX_PIN E4_SERIAL_TX_PIN
// Reduce baud rate to improve software serial reliability
#define TMC_BAUD_RATE 19200
diff --git a/Marlin/src/pins/stm32f4/pins_MKS_ROBIN_NANO_V3.h b/Marlin/src/pins/stm32f4/pins_MKS_ROBIN_NANO_V3.h
index 41fb1220d4c..a51a18362f0 100644
--- a/Marlin/src/pins/stm32f4/pins_MKS_ROBIN_NANO_V3.h
+++ b/Marlin/src/pins/stm32f4/pins_MKS_ROBIN_NANO_V3.h
@@ -134,19 +134,19 @@
// No Hardware serial for steppers
//
#define X_SERIAL_TX_PIN PD5
- #define X_SERIAL_RX_PIN PD5
+ #define X_SERIAL_RX_PIN X_SERIAL_TX_PIN
#define Y_SERIAL_TX_PIN PD7
- #define Y_SERIAL_RX_PIN PD7
+ #define Y_SERIAL_RX_PIN Y_SERIAL_TX_PIN
#define Z_SERIAL_TX_PIN PD4
- #define Z_SERIAL_RX_PIN PD4
+ #define Z_SERIAL_RX_PIN Z_SERIAL_TX_PIN
#define E0_SERIAL_TX_PIN PD9
- #define E0_SERIAL_RX_PIN PD9
+ #define E0_SERIAL_RX_PIN E0_SERIAL_TX_PIN
#define E1_SERIAL_TX_PIN PD8
- #define E1_SERIAL_RX_PIN PD8
+ #define E1_SERIAL_RX_PIN E1_SERIAL_TX_PIN
// Reduce baud rate to improve software serial reliability
#define TMC_BAUD_RATE 19200
diff --git a/Marlin/src/pins/stm32f4/pins_MKS_ROBIN_PRO_V2.h b/Marlin/src/pins/stm32f4/pins_MKS_ROBIN_PRO_V2.h
index c2809c85532..a56889fc7e4 100644
--- a/Marlin/src/pins/stm32f4/pins_MKS_ROBIN_PRO_V2.h
+++ b/Marlin/src/pins/stm32f4/pins_MKS_ROBIN_PRO_V2.h
@@ -147,24 +147,20 @@
//#define E3_HARDWARE_SERIAL Serial1
//#define E4_HARDWARE_SERIAL Serial1
- //
- // Software serial
- //
-
#define X_SERIAL_TX_PIN PD5
- #define X_SERIAL_RX_PIN PD5
+ #define X_SERIAL_RX_PIN X_SERIAL_TX_PIN
#define Y_SERIAL_TX_PIN PD7
- #define Y_SERIAL_RX_PIN PD7
+ #define Y_SERIAL_RX_PIN Y_SERIAL_TX_PIN
#define Z_SERIAL_TX_PIN PD4
- #define Z_SERIAL_RX_PIN PD4
+ #define Z_SERIAL_RX_PIN Z_SERIAL_TX_PIN
#define E0_SERIAL_TX_PIN PD9
- #define E0_SERIAL_RX_PIN PD9
+ #define E0_SERIAL_RX_PIN E0_SERIAL_TX_PIN
#define E1_SERIAL_TX_PIN PD8
- #define E1_SERIAL_RX_PIN PD8
+ #define E1_SERIAL_RX_PIN E1_SERIAL_TX_PIN
// Reduce baud rate to improve software serial reliability
#define TMC_BAUD_RATE 19200
diff --git a/Marlin/src/pins/stm32f4/pins_RUMBA32_MKS.h b/Marlin/src/pins/stm32f4/pins_RUMBA32_MKS.h
index 4dce7b79c01..0b539417d6d 100644
--- a/Marlin/src/pins/stm32f4/pins_RUMBA32_MKS.h
+++ b/Marlin/src/pins/stm32f4/pins_RUMBA32_MKS.h
@@ -67,9 +67,6 @@
//#define E3_HARDWARE_SERIAL Serial1
//#define E4_HARDWARE_SERIAL Serial1
- //
- // Software serial
- //
#define X_SERIAL_TX_PIN PA3
#define X_SERIAL_RX_PIN PC14
diff --git a/Marlin/src/pins/stm32f7/pins_NUCLEO_F767ZI.h b/Marlin/src/pins/stm32f7/pins_NUCLEO_F767ZI.h
index 5e50548c9b5..217664e5bc2 100644
--- a/Marlin/src/pins/stm32f7/pins_NUCLEO_F767ZI.h
+++ b/Marlin/src/pins/stm32f7/pins_NUCLEO_F767ZI.h
@@ -130,16 +130,16 @@
#if HAS_TMC_UART
#define X_SERIAL_TX_PIN PB9
- #define X_SERIAL_RX_PIN PB9
+ #define X_SERIAL_RX_PIN X_SERIAL_TX_PIN
#define Y_SERIAL_TX_PIN PE3
- #define Y_SERIAL_RX_PIN PE3
+ #define Y_SERIAL_RX_PIN Y_SERIAL_TX_PIN
#define Z_SERIAL_TX_PIN PE12
- #define Z_SERIAL_RX_PIN PE12
+ #define Z_SERIAL_RX_PIN Z_SERIAL_TX_PIN
- #define E_SERIAL_TX_PIN PG9
- #define E_SERIAL_RX_PIN PG9
+ #define E0_SERIAL_TX_PIN PG9
+ #define E0_SERIAL_RX_PIN E0_SERIAL_TX_PIN
#endif
//
diff --git a/Marlin/src/pins/stm32h7/pins_BTT_SKR_SE_BX.h b/Marlin/src/pins/stm32h7/pins_BTT_SKR_SE_BX.h
index d85bbf7bed9..991c611a89f 100644
--- a/Marlin/src/pins/stm32h7/pins_BTT_SKR_SE_BX.h
+++ b/Marlin/src/pins/stm32h7/pins_BTT_SKR_SE_BX.h
@@ -131,23 +131,20 @@
//#define E6_HARDWARE_SERIAL Serial1
//#define E7_HARDWARE_SERIAL Serial1
- //
- // Software serial
- //
#define X_SERIAL_TX_PIN PG10
- #define X_SERIAL_RX_PIN PG10
+ #define X_SERIAL_RX_PIN X_SERIAL_TX_PIN
#define Y_SERIAL_TX_PIN PD4
- #define Y_SERIAL_RX_PIN PD4
+ #define Y_SERIAL_RX_PIN Y_SERIAL_TX_PIN
#define Z_SERIAL_TX_PIN PD5
- #define Z_SERIAL_RX_PIN PD5
+ #define Z_SERIAL_RX_PIN Z_SERIAL_TX_PIN
#define E0_SERIAL_TX_PIN PI8
- #define E0_SERIAL_RX_PIN PI8
+ #define E0_SERIAL_RX_PIN E0_SERIAL_TX_PIN
#define E1_SERIAL_TX_PIN PC8
- #define E1_SERIAL_RX_PIN PC8
+ #define E1_SERIAL_RX_PIN E1_SERIAL_TX_PIN
// Reduce baud rate to improve software serial reliability
#define TMC_BAUD_RATE 19200