ScStw/ESP32-HUB75-MatrixPanel-DMA
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Update ESP32-HUB75-MatrixPanel-I2S-DMA.cpp

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mrfaptastic 2021-06-24 17:14:54 +01:00
parent c77c4d68ec
commit d339efac3c
1 changed files with 2 additions and 2 deletions
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ESP32-HUB75-MatrixPanel-I2S-DMA.cpp
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@ -636,8 +636,8 @@ void MatrixPanel_I2S_DMA::clearFrameBuffer(bool _buff_id){
row = dma_buff.rowBits[row_idx]->getDataPtr(coloridx, _buff_id); row = dma_buff.rowBits[row_idx]->getDataPtr(coloridx, _buff_id);
// drive latch while shifting out last bit of RGB data // 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 row[dma_buff.rowBits[row_idx]->width - 1] |= BIT_LAT; // -1 pixel to compensate array index starting at 0
row[dma_buff.rowBits[row_idx]->width - 2] |= BIT_LAT; // hack / test - increase latch to two cycles.
// need to disable OE before/after latch to hide row transition // need to disable OE before/after latch to hide row transition
// Should be one clock or more before latch, otherwise can get ghosting // Should be one clock or more before latch, otherwise can get ghosting