spi with dma can`t work in stm32H7

I use spi without dma can transmit and receive data. but I use spi with dma can`t transmit and receive data! my chip is stm32h743ii series!

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Super User

Have you reviewed the examples given in CubeH7?

JW

gcaifAuthor

Associate II

I can`t find the spi with dma examples.

Guru

Make sure you're using the right memory or the right buses. Check bus matrix diagrams.

Make sure the MPU is configured suitably, and you use Cache Clean/Invalidate appropriately to ensure coherency.

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gcaifAuthor

Associate II

thank you for you respond.

the below is my configure! can you help me which sides is wrong!

the above image is mpu set.

and the below image is dma set.

and I use USART can tranmit and receive data is correct! so I think the cache is configure suitably.

the ram address is 0x24000000.

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