From 20f5f3c4d12fae354bd72913eeea7feb5b3a2956 Mon Sep 17 00:00:00 2001
From: Raphael Coeffic <raphael.coeffic@frafos.com>
Date: Sun, 23 May 2021 18:33:56 +0200
Subject: [PATCH] ltdc: wait auf LTDC_CDSR_VSYNCS raising edge after register
 reload command

---
 radio/src/targets/horus/lcd_driver.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/radio/src/targets/horus/lcd_driver.cpp b/radio/src/targets/horus/lcd_driver.cpp
index cf5e8755d..b3df5a2a6 100644
--- a/radio/src/targets/horus/lcd_driver.cpp
+++ b/radio/src/targets/horus/lcd_driver.cpp
@@ -621,6 +621,7 @@ static void lcdSwitchLayers()
   // wait for reload
   // TODO: replace through some smarter mechanism without busy wait
   while ((LTDC->CDSR & LTDC_CDSR_VSYNCS) == 0);
+  while ((LTDC->CDSR & LTDC_CDSR_VSYNCS) == 1);
 }
 
 void lcdRefresh()