2023-06-24 09:49 AM
Solved! Go to Solution.
2023-06-24 12:50 PM
> Why would the DMA counter increase but not the memory buffer contents?
Mind the cache. Check that the destination memory address can be accessed by the DMA.
2023-06-24 12:50 PM
> Why would the DMA counter increase but not the memory buffer contents?
Mind the cache. Check that the destination memory address can be accessed by the DMA.
2023-06-26 02:08 PM
@Pavel A. wrote:> Why would the DMA counter increase but not the memory buffer contents?
Mind the cache. Check that the destination memory address can be accessed by the DMA.
Thanks, I think it was this. I also got a lot of help from this:
DMA is not working on STM32H7 devices - STMicroelectronics Community
I moved DMA buffers to a fixed location and made a new MPU region with cache disabled.