SPI with DMA only transmit and receive one byte of data?

[EOzde.1]

Hello Comunity,

I am trying to receive data with stm32h745 from stm32f407. In polling mode and IT mode no issue of getting multiple bytes of data. But with the DMA I can only receive and transmit one byte of data and nothing more. DMA is configured in normal mode. Any suggestion.

Best Regards

[Imen.D · Accepted solution]

Hello @EOzde.1​ 

Check the possible DMA issues described in this FAQ: DMA is not working on STM32H7 devices.

When your question is answered, please mark the answer as "Best Answer", this can be very helpful for Community users to find this solution more quickly.

Imen

[EOzde.1]

It helps me a lot. Thank you so much.

Best Regards.