Slightly more efficient stereo DAC DMA

output_dacs.cpp

@@ -69,8 +69,8 @@ void AudioOutputAnalogStereo::begin(void)
 	}
 
 	dma.TCD->SADDR = dac_buffer;
-	dma.TCD->SOFF = 2;
-	dma.TCD->ATTR = DMA_TCD_ATTR_SSIZE(DMA_TCD_ATTR_SIZE_16BIT) |
+	dma.TCD->SOFF = 4;
+	dma.TCD->ATTR = DMA_TCD_ATTR_SSIZE(DMA_TCD_ATTR_SIZE_32BIT) |
 		DMA_TCD_ATTR_DSIZE(DMA_TCD_ATTR_SIZE_16BIT);
 	dma.TCD->NBYTES_MLNO = DMA_TCD_NBYTES_MLOFFYES_NBYTES(4) | DMA_TCD_NBYTES_DMLOE |
 		DMA_TCD_NBYTES_MLOFFYES_MLOFF((&DAC0_DAT0L - &DAC1_DAT0L) * 2);