From 15d68cb496e3b19b047a40ff0483e577ffc98f2d Mon Sep 17 00:00:00 2001
From: Scott Lahteine <github@thinkyhead.com>
Date: Thu, 26 Jul 2018 23:33:13 -0500
Subject: [PATCH] Pre-override of ST7920 delays before HAL.h

---
 Marlin/src/HAL/HAL_LPC1768/HAL.h | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/Marlin/src/HAL/HAL_LPC1768/HAL.h b/Marlin/src/HAL/HAL_LPC1768/HAL.h
index 734bc823fa..b26581d443 100644
--- a/Marlin/src/HAL/HAL_LPC1768/HAL.h
+++ b/Marlin/src/HAL/HAL_LPC1768/HAL.h
@@ -68,9 +68,15 @@ extern "C" volatile uint32_t _millis;
 #include "HAL_timers.h"
 #include "HardwareSerial.h"
 
-#define ST7920_DELAY_1 DELAY_NS(600)
-#define ST7920_DELAY_2 DELAY_NS(750)
-#define ST7920_DELAY_3 DELAY_NS(750)
+#ifndef ST7920_DELAY_1
+  #define ST7920_DELAY_1 DELAY_NS(600)
+#endif
+#ifndef ST7920_DELAY_2
+  #define ST7920_DELAY_2 DELAY_NS(750)
+#endif
+#ifndef ST7920_DELAY_3
+  #define ST7920_DELAY_3 DELAY_NS(750)
+#endif
 
 extern HalSerial usb_serial;