cancel
Showing results for 
Search instead for 
Did you mean: 

DMA possible application use cases

IYetk
Associate III

Hi,

Can anyone give me possible application use cases that Direct Memory Access (DMA) is needed or has advantages to use for stm32mp157c?

Or any document that explains possible application use cases ?

tnx

1 REPLY 1
PatrickF
ST Employee

That's a very generic question.

DMA are useful for various purposes, mostly to manage hard real time constrains (e.g. transfer data from/to an high-speed peripheral without over/under flow) which are sometimes complex using interrupt (especially when using an OS such as Linux).

DMA are also good to offload processor(s) task for other purposes (could also allow to save power).

Regards.

In order 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.