Not able to configure DMA1/2 with the USART2 in CM4 mode

[darla14]

Hello,

I am trying to associate the DMA1 in M4 context with USART2 but whenever I click "add" on the right pane, I see no USART2 on that, on the contrary, I see UART4 it on DMA2 as shown below. If I try to put DMA2 in M4 context, UART4 now appears in DMA1 and I cannot Assign both of them to M4

 

No uart/usart when i click add , please see below image :

 

 

My aim is to associate the USART2 with the DMA1 if it is possible. Please guide.

Regards,

D

[PatrickF · Accepted solution]

Hi @darla14​ ,

first, I encourage you to stick with our default usage of DMA1 to A7NS and DMA2 to M4

Did you assign the USART2 to M4 runtime context ?

On my side, seems to work as expected.

Regards.

[darla14]

@PatrickF​  Thanks , assigning USART2 to M4 and then assigning DMA2 can see USART2 in that.

Thanks a lot !

br,

D