ScStw/ESP32-HUB75-MatrixPanel-DMA
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Change DMA to I2S0

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For ESP32-S2 compatability.
This commit is contained in:
mrfaptastic 2021-08-16 12:18:14 +01:00
parent 11eaf34d91
commit 1d32228a5b
3 changed files with 6 additions and 7 deletions
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6
ESP32-HUB75-MatrixPanel-I2S-DMA.cpp
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@ -415,14 +415,14 @@ void MatrixPanel_I2S_DMA::configureDMA(const HUB75_I2S_CFG& _cfg)
}; };
// Setup I2S // Setup I2S
i2s_parallel_driver_install(I2S_NUM_1, &cfg); i2s_parallel_driver_install(I2S_NUM_0, &cfg);
//i2s_parallel_setup_without_malloc(&I2S1, &cfg); //i2s_parallel_setup_without_malloc(&I2S1, &cfg);
// Start DMA Output // Start DMA Output
i2s_parallel_send_dma(I2S_NUM_1, &dmadesc_a[0]); i2s_parallel_send_dma(I2S_NUM_0, &dmadesc_a[0]);
#if SERIAL_DEBUG #if SERIAL_DEBUG
Serial.println(F("configureDMA(): DMA setup completed on I2S1.")); Serial.println(F("configureDMA(): DMA setup completed on I2S_NUM_0."));
#endif #endif
} // end initMatrixDMABuff } // end initMatrixDMABuff

4
ESP32-HUB75-MatrixPanel-I2S-DMA.h
View file

@ -504,7 +504,7 @@ class MatrixPanel_I2S_DMA {
Serial.printf_P(PSTR("Showtime for buffer: %d\n"), back_buffer_id); Serial.printf_P(PSTR("Showtime for buffer: %d\n"), back_buffer_id);
#endif #endif
i2s_parallel_flip_to_buffer(I2S_NUM_1, back_buffer_id); i2s_parallel_flip_to_buffer(I2S_NUM_0, back_buffer_id);
// Wait before we allow any writing to the buffer. Stop flicker. // Wait before we allow any writing to the buffer. Stop flicker.
while(!i2s_parallel_is_previous_buffer_free()) { delay(1); } while(!i2s_parallel_is_previous_buffer_free()) { delay(1); }
@ -559,7 +559,7 @@ class MatrixPanel_I2S_DMA {
*/ */
void stopDMAoutput() { void stopDMAoutput() {
resetbuffers(); resetbuffers();
i2s_parallel_stop_dma(I2S_NUM_1); i2s_parallel_stop_dma(I2S_NUM_0);
} }

3
examples/1_SimpleTestShapes/1_SimpleTestShapes.ino
View file

@ -93,8 +93,7 @@ void drawText(int colorWheelOffset)
void setup() { void setup() {
// // Module configuration
HUB75_I2S_CFG mxconfig( HUB75_I2S_CFG mxconfig(
PANEL_RES_X, // module width PANEL_RES_X, // module width
PANEL_RES_Y, // module height PANEL_RES_Y, // module height