STM32H7 USART1 DMA is not working..

[Vel]

Hi team,

I'm using STM32H753BI. Here i'm using USART1 (PA9 & PA10) in DMA Mode. That code is generated by cubeMX and also i tried the example program of STM32H743-EVAL Board. Both are not working.

Here i have attached the hal_msp_file.c and main.c for your reference.

Thanks,

vel.

[Vel]

HI,

Thanks for your response, After changing the buffer address at 0x24000000 its working..

Thanks,

Vel

[nanotronicsnss]

Hi Vel,

I am having the same problem with STM32H750VB...(https://community.st.com/s/question/0D53W00000mm8h1SAA/stm32h750vbuartdmamode) Can u tell me how u got these addresses and how to change the address of TXBuff ...

[Vel]

Hi nanotronicsnss,

Here I'm underline the TXbuff address...Pls refer the link . Its will helpful to change the TX buffer. I'm using example 2 to change the buffer address

https://community.st.com/s/article/FAQ-DMA-is-not-working-on-STM32H7-devices

Thanks,

vel