STM32H563ZI NUCLEO LPUART GPDMA RX not working

togsin · ‎2025-09-25

HI~

I use STM32H563ZI NUCLEO.

And I develpe LPUART GPDMA , but LPUART GPDMA2 rx interrupt not working.

LPUART RX GPDMA ch0

LPUART TX GPDMA ch1

Let me know how to config.

Thanks

mƎALLEm · ‎2025-09-25

Hello,

When you say "LPUART GPDMA RX not working" do you mean LPUART without DMA is working? did you try that?

You didn't show any of your config/code.

Please refer to: How to write your question to maximize your chances to find a solution

To give better visibility on the answered topics, please click on "Accept as Solution" on the reply which solved your issue or answered your question.

View solution in original post

mƎALLEm · ‎2025-09-25

Hello,

When you say "LPUART GPDMA RX not working" do you mean LPUART without DMA is working? did you try that?

You didn't show any of your config/code.

Please refer to: How to write your question to maximize your chances to find a solution

To give better visibility on the answered topics, please click on "Accept as Solution" on the reply which solved your issue or answered your question.

mƎALLEm · ‎2025-09-29

Hello @togsin ,

Did you intentionally accept the solution or it was a mistake?

If it was intentionally, could you explain what was the solution?

To give better visibility on the answered topics, please click on "Accept as Solution" on the reply which solved your issue or answered your question.

togsin · ‎2025-09-29

Hi

Lpuart is my mistake . i miss setting.

Sorry.

mƎALLEm · ‎2025-09-29

@togsin wrote:

Hi

Lpuart is my mistake . i miss setting.

Sorry.

Do you mean that it was not also working without DMA? and it was not an issue of DMA method but something else in LPUART config?

To give better visibility on the answered topics, please click on "Accept as Solution" on the reply which solved your issue or answered your question.

togsin · ‎2025-09-29

Hello

Yes lpuart config mistake. Sorry~