STM32H7 SDMMC2 DMA Configuration

[eeyurdakul]

I can configure MDMA for SDMMC1 in STM32H730 in STM32CubeIDE.

But I do not understand how to enable it for SDMMC2.

In the documentation it says SDMMC2 has a direct access to DMA1 & DMA2. But I could not see it in DMA configuration panel.

Could you help me about this issue please?

[Bouraoui Chemli]

Hi @eeyurdakul​ 

The SDMMC has an embedded DMA (internal direct memory access, IDMA) and no need for an external DMA.

You can refer to application note AN5200 "Getting started with STM32H7 Series SDMMC host controller"

Also you can refer to STM32CubeH7 firmware examples via this path: STM32Cube_FW_H7_V1.8.0\Projects\STM32H735G-DK\Examples\SD.

Best regards,

Bouraoui