From b95a1b94cbcfc35d10d21f17dc3a3d7ddcfaa5b9 Mon Sep 17 00:00:00 2001
From: Roxy-3D <Roxy-3D@users.noreply.github.com>
Date: Thu, 26 Apr 2018 14:32:24 -0500
Subject: [PATCH] make Max7219 usable at ISR time

---
 Marlin/Max7219_Debug_LEDs.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Marlin/Max7219_Debug_LEDs.cpp b/Marlin/Max7219_Debug_LEDs.cpp
index 43f0a2a975..102ec21cb7 100644
--- a/Marlin/Max7219_Debug_LEDs.cpp
+++ b/Marlin/Max7219_Debug_LEDs.cpp
@@ -64,7 +64,7 @@
 static uint8_t LEDs[8] = { 0 };
 
 #ifdef CPU_32_BIT
-  #define MS_DELAY() delayMicroseconds(7)  // 32-bit processors need a delay to stabilize the signal
+  void MS_DELAY() { DELAY_1US; }  // 32-bit processors need a delay to stabilize the signal
 #else
   #define MS_DELAY() DELAY_3_NOP
 #endif