STM32H7 nucleo - DMA tab in cubeMX configuration of SDMMC

[Marina Brener]

Posted on January 12, 2018 at 20:49

Hello,

I am trying to use SDMMC/SDIO with DMA + FATFS. 

When creating project on stm32f7, I can find and configure DMA streams for the sdmmc.

I am working with cubeMX version 4.23.

Screenshot from STM32F7 - DISCO cube configuration:

Screenshot from STM32H7- NUCLEO cube configuration:

Does the cube missing a DMA tab in SDMMC configuration? Maybe it defined in another place in the cube?

Best regards,

Marina

#fatfs-sdio #cubemx-4.23 #dma

[Joerg Wagner]

Posted on January 13, 2018 at 23:53

Hi Marina.

The basic DMA is not more available for SDMMC1, just for SDMMC2 only.

To use the DMA feature you have to work with MDMA. It's in the same D1 domain. 

[Marina Brener]

Posted on January 14, 2018 at 00:58

Hi Joerg,

Thanks for the response. 

Do you know why it is not available? 

If I should work with the MDMA, can it be defined to work with the SDMMC via the cube?

Marina

[Joerg Wagner]

Posted on January 14, 2018 at 10:58

On page 100 in the Reference Manual you can see the interconnects.

Only SDMMC2 resides in the D2 domain.

You can use MDMA in CubeMX:

[Marina Brener]

Posted on January 15, 2018 at 20:33

Thanks for the help!

Did you manage to use an SD card using SDMMC1 without any DMA on stm32H7 nucleo?

[Joerg Wagner]

Posted on January 15, 2018 at 21:28

No.

I gave up with STM32H743, switched back to F767/769 and waiting for new libraries.

[Marina Brener]

Posted on January 15, 2018 at 21:48

Oh, I understand the frustration.

[Abdelhamid GHITH · Accepted solution]

Posted on July 04, 2018 at 21:14

Hi all,

STM32H743 SDMMC host controller has an internal DMA.

Best regards,

Abdelhamid.

[Reza1]

Hi,

I have faced similar issues in 2022. I'm using STM32H743II and Generating its code with STM32CubeMX version 6.3.0 and FatFs library.

When I touch the screen repetitively, "f_open" returns DISK_ERROR. I have seen this problem when have used STM32F7 and I have resolved it by confining micro SD with DMA. Now I want to run micro SD with DMA in STM32H743II but I can't reach the appropriate config in Cube. I have read about IDMA and MDMA but can't run them. I don't know how config IDMA or MDMA with SDMMC.

Mr Abdelhamid please describe how to use internal DMA? How i generate a code using BSP_SD_ReadBlocks_DMA and works well?

Anybody can help me, please?

Thanks

[APate.8]

HI I am having the same issue. Can anyone help to configure cubemax for BSP_SD_ReadBlocks_DMA ?

I am using SDMMC2 interface with 1bit SD card. Generated code with CubeMax but I dont know how to link DMA with BSP_SD_ReadBlocks_DMA function.

From Manual it says SDMMC2 is in domain 2, so DMA1 and 2 should be available. however, I can not find any channel from SDMMC2 data transfer in cubeMx.

any help will be appreciated.