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

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mrfaptastic 2021-01-09 20:13:42 +00:00
parent 573d01b3d9
commit f3302c9f87
1 changed files with 8 additions and 2 deletions
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ESP32-HUB75-MatrixPanel-I2S-DMA.cpp
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@ -519,7 +519,12 @@ void MatrixPanel_I2S_DMA::updateMatrixDMABuffer(int16_t x_coord, int16_t y_coord
// update address/control bits // update address/control bits
v &= BITMASK_CTRL_CLEAR; // reset ABCDE,EO,LAT address bits v &= BITMASK_CTRL_CLEAR; // reset ABCDE,EO,LAT address bits
uint16_t _y = color_depth_idx ? y_coord : y_coord -1; // normally output current rows ADDX, special case for LSB, output previous row's ADDX (as previous row is being displayed for one latch cycle)
// uint16_t _y = (color_depth_idx == 0) ?
// gpioRowAddress = y_coord-1;
//uint16_t _y = color_depth_idx ? y_coord : y_coord -1;
uint16_t _y = y_coord;
v|=_y << BITS_ADDR_OFFSET; // shift row coord to match ABCDE bits from bit positions 8 to 12 and set bitvector v|=_y << BITS_ADDR_OFFSET; // shift row coord to match ABCDE bits from bit positions 8 to 12 and set bitvector
// drive latch while shifting out last bit of RGB data // drive latch while shifting out last bit of RGB data
@ -606,7 +611,8 @@ void MatrixPanel_I2S_DMA::updateMatrixDMABuffer(uint8_t red, uint8_t green, uint
} else { } else {
// Set ABCDE address bits vector // Set ABCDE address bits vector
uint16_t _y = color_depth_idx ? matrix_frame_parallel_row : matrix_frame_parallel_row -1; //uint16_t _y = color_depth_idx ? matrix_frame_parallel_row : matrix_frame_parallel_row -1;
uint16_t _y = matrix_frame_parallel_row;
_y <<= BITS_ADDR_OFFSET; // shift row y-coord to match ABCDE bits in vector from 8 to 12 _y <<= BITS_ADDR_OFFSET; // shift row y-coord to match ABCDE bits in vector from 8 to 12
for(uint16_t x_coord=0; x_coord < MATRIX_WIDTH; x_coord++) { for(uint16_t x_coord=0; x_coord < MATRIX_WIDTH; x_coord++) {