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Fix unintended 0 data when I2S restart

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odaki
2020-04-25 22:21:59 +09:00
parent 5f16050312
commit 78e001e6df
1 changed files with 4 additions and 0 deletions
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4
Grbl_Esp32/i2s_ioexpander.cpp
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@@ -244,6 +244,8 @@ static int i2s_start() {
I2S0.conf.rx_reset = 1;
I2S0.conf.rx_reset = 0;
I2S0.conf1.tx_stop_en = 1; // Prevent unintentional 0's at the start of I2S
I2S0.out_link.addr = (uint32_t)dma.desc[0];
// Connect DMA to FIFO
@@ -253,6 +255,8 @@ static int i2s_start() {
I2S0.out_link.start = 1;
I2S0.conf.tx_start = 1;
I2S0.conf1.tx_stop_en = 0; // BCK, WS start to work
I2S_EXIT_CRITICAL();
return 0;