MDMA not working while performing loopback test (STM32h757 EVAL board)

[Lokesh1]

Hello ST community,

I was able to perform the loop back test using DMA by using HAL layer provided by ST microcontrollers. It worked successfully.

Next I wanted to transfer more data using MDMA and below is the code snippet. I was unsuccessful and couldn't find the reason behind it.

I generated code using STMCubeIDE and have invoked necessary API's in main.

Any leads here would be appreciated.

[LCE]

You are giving HAL_MDMA_Start_IT() a function (frontend_data_transmitter()) instead of a pointer to the source address, how's that supposed to work?

BTW, it's nicer for others if you paste your code as text, not as pictures.

[Douglas MILLER]

Hello Srinivasa

This forum thread was marked by the moderator as needing a little more investigation, so a Support case was created in your name and will be handled off-line.