From 105fd73c2868132ae687d5fd6b6102a0fc235e3c Mon Sep 17 00:00:00 2001
From: Tanguy Pruvot <tpruvot@users.noreply.github.com>
Date: Thu, 2 Sep 2021 01:45:17 +0200
Subject: [PATCH] =?UTF-8?q?=F0=9F=A9=B9=20Allow=20M42=20S0/1=20analogWrite?=
 =?UTF-8?q?=20on=20PWM=20pins=20(STM32)=20(#22631)?=
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---
 Marlin/src/gcode/control/M42.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Marlin/src/gcode/control/M42.cpp b/Marlin/src/gcode/control/M42.cpp
index 908260ed25dd..eead971a012c 100644
--- a/Marlin/src/gcode/control/M42.cpp
+++ b/Marlin/src/gcode/control/M42.cpp
@@ -127,7 +127,7 @@ void GcodeSuite::M42() {
 
   #ifdef ARDUINO_ARCH_STM32
     // A simple I/O will be set to 0 by analogWrite()
-    if (pin_status <= 1) return;
+    if (pin_status <= 1 && !PWM_PIN(pin)) return;
   #endif
   analogWrite(pin, pin_status);
 }