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@ -108,7 +108,7 @@ void AudioOutputI2S_F32::begin(void) |
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dma.TCD->NBYTES_MLNO = 2; |
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//dma.TCD->SLAST = -sizeof(i2s_tx_buffer); //original
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dma.TCD->SLAST = -I2S_BUFFER_TO_USE_BYTES; |
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dma.TCD->DADDR = &I2S0_TDR0; |
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dma.TCD->DADDR = (void *)((uint32_t)&I2S0_TDR0 + 2); |
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dma.TCD->DOFF = 0; |
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//dma.TCD->CITER_ELINKNO = sizeof(i2s_tx_buffer) / 2; //original
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dma.TCD->CITER_ELINKNO = I2S_BUFFER_TO_USE_BYTES / 2; |
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@ -432,21 +432,21 @@ void AudioOutputI2S_F32::config_i2s(void) |
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I2S0_TMR = 0; |
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I2S0_TCR1 = I2S_TCR1_TFW(1); // watermark at half fifo size
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I2S0_TCR2 = I2S_TCR2_SYNC(0) | I2S_TCR2_BCP | I2S_TCR2_MSEL(1) |
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| I2S_TCR2_BCD | I2S_TCR2_DIV(3); |
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| I2S_TCR2_BCD | I2S_TCR2_DIV(1); |
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I2S0_TCR3 = I2S_TCR3_TCE; |
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I2S0_TCR4 = I2S_TCR4_FRSZ(1) | I2S_TCR4_SYWD(15) | I2S_TCR4_MF |
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I2S0_TCR4 = I2S_TCR4_FRSZ(1) | I2S_TCR4_SYWD(31) | I2S_TCR4_MF |
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| I2S_TCR4_FSE | I2S_TCR4_FSP | I2S_TCR4_FSD; |
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I2S0_TCR5 = I2S_TCR5_WNW(15) | I2S_TCR5_W0W(15) | I2S_TCR5_FBT(15); |
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I2S0_TCR5 = I2S_TCR5_WNW(31) | I2S_TCR5_W0W(31) | I2S_TCR5_FBT(31); |
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// configure receiver (sync'd to transmitter clocks)
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I2S0_RMR = 0; |
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I2S0_RCR1 = I2S_RCR1_RFW(1); |
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I2S0_RCR2 = I2S_RCR2_SYNC(1) | I2S_TCR2_BCP | I2S_RCR2_MSEL(1) |
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| I2S_RCR2_BCD | I2S_RCR2_DIV(3); |
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| I2S_RCR2_BCD | I2S_RCR2_DIV(1); |
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I2S0_RCR3 = I2S_RCR3_RCE; |
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I2S0_RCR4 = I2S_RCR4_FRSZ(1) | I2S_RCR4_SYWD(15) | I2S_RCR4_MF |
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I2S0_RCR4 = I2S_RCR4_FRSZ(1) | I2S_RCR4_SYWD(31) | I2S_RCR4_MF |
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| I2S_RCR4_FSE | I2S_RCR4_FSP | I2S_RCR4_FSD; |
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I2S0_RCR5 = I2S_RCR5_WNW(15) | I2S_RCR5_W0W(15) | I2S_RCR5_FBT(15); |
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I2S0_RCR5 = I2S_RCR5_WNW(31) | I2S_RCR5_W0W(31) | I2S_RCR5_FBT(31); |
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// configure pin mux for 3 clock signals
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CORE_PIN23_CONFIG = PORT_PCR_MUX(6); // pin 23, PTC2, I2S0_TX_FS (LRCLK)
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