From 087e96d0d771a3a1f2019dfcd2f6e48c5140e3bd Mon Sep 17 00:00:00 2001
From: mrfaptastic <12006953+mrfaptastic@users.noreply.github.com>
Date: Thu, 24 Jun 2021 16:37:46 +0100
Subject: [PATCH] Inital commit

---
 ESP32-HUB75-MatrixPanel-I2S-DMA.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/ESP32-HUB75-MatrixPanel-I2S-DMA.cpp b/ESP32-HUB75-MatrixPanel-I2S-DMA.cpp
index fd31f73..6e30888 100644
--- a/ESP32-HUB75-MatrixPanel-I2S-DMA.cpp
+++ b/ESP32-HUB75-MatrixPanel-I2S-DMA.cpp
@@ -637,6 +637,7 @@ void MatrixPanel_I2S_DMA::clearFrameBuffer(bool _buff_id){
 
       // drive latch while shifting out last bit of RGB data
       row[dma_buff.rowBits[row_idx]->width - 2] |= BIT_LAT;   // -1 pixel to compensate array index starting at 0
+      row[dma_buff.rowBits[row_idx]->width - 1] |= BIT_LAT;   // -1 pixel to compensate array index starting at 0
 
       // need to disable OE before/after latch to hide row transition
       // Should be one clock or more before latch, otherwise can get ghosting
@@ -661,8 +662,8 @@ void MatrixPanel_I2S_DMA::brtCtrlOE(int brt, const bool _buff_id){
   if (!initialized)
     return;
 
-  if (brt > PIXELS_PER_ROW - m_cfg.latch_blanking)   // can't control values larger than (row_width - latch_blanking) to avoid ongoing issues being raised about brightness and ghosting.
-    brt = PIXELS_PER_ROW - m_cfg.latch_blanking;
+  if (brt > PIXELS_PER_ROW - (MAX_LAT_BLANKING + 2))   // can't control values larger than (row_width - latch_blanking) to avoid ongoing issues being raised about brightness and ghosting.
+    brt = PIXELS_PER_ROW   - (MAX_LAT_BLANKING + 2);   // +2 for a bit of buffer...
 
   if (brt < 0)
     brt = 0;