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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

  • November 15, 2023
  • 1 reply
  • 1505 views

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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Best answer by PatrickF

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.

1 reply

PatrickF
PatrickFBest answer
Technical Moderator
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.

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