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Dat Tran
Dat Tran
Senior II
November 15, 2023
Solved

Where can I find DMA request mapping on STM32MP15 - M4 MCU

On STM32F4 has this and it is very easy to use. Does STM32MP15 -M4 MCU have same one?

 

DatTran_0-1700060965064.png

 

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PatrickF
PatrickFBest answer
ST Employee
November 15, 2023

Hi @Dat Tran ,

All information are inside Reference Manual.

In complex product, there is a DMAMUX in front of DMAs to allow much more flexibility.

The list of resource is inside the DMAMUX section.

Note that MDMA (devoted to Linux secure/non-secure usage) has their connections described in a separate section under 'Block interconnect / MDMA'

CubeMX might also help you as DMAMUX could be also shared with Linux (where DMA1 and/or DMA2 are assigned to either Linux or Cortex-M, but not shared).

Regards.

In order to give better visibility on the answered topics, please click on 'Best Answer' on the reply which solved your issue or answered your question.Tip of the day: Try Sidekick STM32 AI agent
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1 reply

PatrickF
PatrickFBest answer
ST Employee
November 15, 2023

Hi @Dat Tran ,

All information are inside Reference Manual.

In complex product, there is a DMAMUX in front of DMAs to allow much more flexibility.

The list of resource is inside the DMAMUX section.

Note that MDMA (devoted to Linux secure/non-secure usage) has their connections described in a separate section under 'Block interconnect / MDMA'

CubeMX might also help you as DMAMUX could be also shared with Linux (where DMA1 and/or DMA2 are assigned to either Linux or Cortex-M, but not shared).

Regards.

In order to give better visibility on the answered topics, please click on 'Best Answer' on the reply which solved your issue or answered your question.Tip of the day: Try Sidekick STM32 AI agent
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