STM32CubeMX issues with STM32H743ZITx

[RichardS1]

I tried to use the STM32CubeMX to configure DAC to work with DMA which would enable me to transfer data from memory, all clocked by TIM6. I used same configuration for STM32F334 and it worked without any problems. After I never got this working, I tried to add another request in DMA configuration menu and discovered this, which looks like some kind of bug, because I haven't found anything like this in reference manual. I believe that STM32CubeMX is not optimized for STM32H7 enough and it looks like this is also the reason why my code wouldn't work with this model.

Thank you for reply.

[Tesla DeLorean]

The H7 has a far more complex DMA routing matrix, the details are in the RM

Expect the H7 to get more focus in subsequent quarters with more support in CubeMX

[Amel NASRI]

This case is reported to our CubeMX team for farther review.

[Houda GHABRI · Accepted solution]

Hello @RichardS​ 

Thanks for your feedback.

DMA_GENERATOR are DMAMUX requests  available on H7 MCU, it is not a bug.

For more details, you can check the Reference Manual RM0433 section 16.3.2 DMAMUX1 mapping.

best regards,

Houda