I am using STM32H7. How do I make a request to MDMA using a timer as a trigger?

RIG · ‎2022-05-30

Amel NASRI · ‎2022-06-03

Hi @Community member ,

I suggest you follow the steps described in Custom Signal generation using PWM and DMA. This can answer your need.

-Amel

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Tesla DeLorean · ‎2022-06-03

Check what DMAMUX type sources are described in the Reference Manual, then use those...

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waclawek.jan · ‎2022-06-03

You can't, at least not directly and not in 'H743 and kin. The MDMA triggers are fixed:

The indirect way would be to trigger any dummy single-transfer with the timer in DMA1/DMA2, and then the transfer complete would trigger MDMA.

JW