Use 64 bit frame size for I2S master mode

Improves compatibility with many I2S chips like digital microphones

input_i2s.cpp

@@ -47,7 +47,7 @@ void AudioInputI2S::begin(void)
 
 	CORE_PIN13_CONFIG = PORT_PCR_MUX(4); // pin 13, PTC5, I2S0_RXD0
 #if defined(KINETISK)
-	dma.TCD->SADDR = &I2S0_RDR0;
+	dma.TCD->SADDR = (void *)((uint32_t)&I2S0_RDR0 + 2);
 	dma.TCD->SOFF = 0;
 	dma.TCD->ATTR = DMA_TCD_ATTR_SSIZE(1) | DMA_TCD_ATTR_DSIZE(1);
 	dma.TCD->NBYTES_MLNO = 2;

output_i2s.cpp

@@ -54,7 +54,7 @@ void AudioOutputI2S::begin(void)
 	dma.TCD->ATTR = DMA_TCD_ATTR_SSIZE(1) | DMA_TCD_ATTR_DSIZE(1);
 	dma.TCD->NBYTES_MLNO = 2;
 	dma.TCD->SLAST = -sizeof(i2s_tx_buffer);
-	dma.TCD->DADDR = &I2S0_TDR0;
+	dma.TCD->DADDR = (void *)((uint32_t)&I2S0_TDR0 + 2);
 	dma.TCD->DOFF = 0;
 	dma.TCD->CITER_ELINKNO = sizeof(i2s_tx_buffer) / 2;
 	dma.TCD->DLASTSGA = 0;
@@ -316,21 +316,21 @@ void AudioOutputI2S::config_i2s(void)
 	I2S0_TMR = 0;
 	I2S0_TCR1 = I2S_TCR1_TFW(1);  // watermark at half fifo size
 	I2S0_TCR2 = I2S_TCR2_SYNC(0) | I2S_TCR2_BCP | I2S_TCR2_MSEL(1)
-		| I2S_TCR2_BCD | I2S_TCR2_DIV(3);
+		| I2S_TCR2_BCD | I2S_TCR2_DIV(1);
 	I2S0_TCR3 = I2S_TCR3_TCE;
-	I2S0_TCR4 = I2S_TCR4_FRSZ(1) | I2S_TCR4_SYWD(15) | I2S_TCR4_MF
+	I2S0_TCR4 = I2S_TCR4_FRSZ(1) | I2S_TCR4_SYWD(31) | I2S_TCR4_MF
 		| I2S_TCR4_FSE | I2S_TCR4_FSP | I2S_TCR4_FSD;
-	I2S0_TCR5 = I2S_TCR5_WNW(15) | I2S_TCR5_W0W(15) | I2S_TCR5_FBT(15);
+	I2S0_TCR5 = I2S_TCR5_WNW(31) | I2S_TCR5_W0W(31) | I2S_TCR5_FBT(31);
 
 	// configure receiver (sync'd to transmitter clocks)
 	I2S0_RMR = 0;
 	I2S0_RCR1 = I2S_RCR1_RFW(1);
 	I2S0_RCR2 = I2S_RCR2_SYNC(1) | I2S_TCR2_BCP | I2S_RCR2_MSEL(1)
-		| I2S_RCR2_BCD | I2S_RCR2_DIV(3);
+		| I2S_RCR2_BCD | I2S_RCR2_DIV(1);
 	I2S0_RCR3 = I2S_RCR3_RCE;
-	I2S0_RCR4 = I2S_RCR4_FRSZ(1) | I2S_RCR4_SYWD(15) | I2S_RCR4_MF
+	I2S0_RCR4 = I2S_RCR4_FRSZ(1) | I2S_RCR4_SYWD(31) | I2S_RCR4_MF
 		| I2S_RCR4_FSE | I2S_RCR4_FSP | I2S_RCR4_FSD;
-	I2S0_RCR5 = I2S_RCR5_WNW(15) | I2S_RCR5_W0W(15) | I2S_RCR5_FBT(15);
+	I2S0_RCR5 = I2S_RCR5_WNW(31) | I2S_RCR5_W0W(31) | I2S_RCR5_FBT(31);
 
 	// configure pin mux for 3 clock signals
 	CORE_PIN23_CONFIG = PORT_PCR_MUX(6); // pin 23, PTC2, I2S0_TX_FS (LRCLK)