DMA + I2C1

[GHM]

we are using the microcontroller stm32h503rbt6 & the IDE is STM32CubeIDE. We would like to configure DMA for I2C1 however when we go to the settings of GPDMA1/GPDMA2 then a warning(attached herewith) appears which disallows us to configure the DMA. So please suggest as to how to configure DMA for I2C1 communication

[KDJEM.1]

Hello @GHM and welcome to the community;

You can configure GPDMA with 2 possible selections in STM32CubeMx: the Standard Request Mode and the Linked List Mode.

I recommend you to look at these FAQs and get inspired to configure I2C1 with GPDMA:

-  How to configure the GPDMA 

- How to configure the linked list mode in STM32CubeMX

Also, I think the ioc file in I2C_TwoBoards_ComDMA example can help.

I hope this help you.

Thank you.

Kaouthar