RT1052 SAI and EDMA --- Dual Buffer Audio DMA

[zhang2015tz]

I need a demo of dual buffer audio DMA. I noticed AN12090, which talks exactly what I need. But unfortunately, it seems like that AN12090 is an incomplete document. Dual buffer audio dma (ping pong buffer) needs a lot of DMA configurations. This document deosn't mention it at all.

So, does anybody know if there is the demo code for AN12090, and where to get it?

[igorpadykov]

Hi ztz

one can find sai dma examples in  SDK_EVKB-MIMXRT1050 :

..driver_examples/sai/edma_transfer/sai_edma_tranfer.c
..devices/MIMXRT1052/drivers/fsl_sai_edma.c

Welcome | MCUXpresso SDK Builder 

Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------