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Dat Tran
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November 15, 2023
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Where can I find DMA request mapping on STM32MP15 - M4 MCU

  • November 15, 2023
  • 1 reply
  • 1504 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

    P
    PatrickFAnswer
    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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