Hi @Eray,
There is no driver for the DMA on the (iMX7’s) Cortex M, and so there are no examples on how to use it. Also, to use the DMA on the Cortex M you’d have to disable it on the Cortex A, as it is shared between the two.
In this thread you may find more information about the DMA. Quoting erickrieg:
[…]. The SDMA essentially has its own microprocessor that can be programmed in assembly language. I could not find a compiler for it - but read of someone writing their own. The manual for the sdma is over 200 pages long - I could not find any white paper on how to really use it. I concluded it is just too complicated and no simple examples of how to use […]
Best Regards,
Yago