STM32H743zit DCMI DMA not Working.

[SSche.1]

I can not get the DCMI Working with OV7670 Camera.

The Hardware is correct, Camera setup is correct.

 HAL_DCMI_Start_DMA(&hdcmi, DCMI_MODE_CONTINUOUS, (uint32_t)framebuffer, sizeof(framebuffer)/4);

The DMA Always Fails.

The problem is with the STM32Cube generated code.

I need to help debugging the Problem.

Who can I discuss the problem with?

[Dub Bartolec]

What is the memory area you are trying to DMA it to ?

Not all memory areas on STM32H7 can be accessed by the DMA.

What is the address of "frambuffer" in above code snippet ?

[waclawek.jan]

Can't this be https://community.st.com/s/question/0D50X0000Bmob3uSQA/dma-not-working-in-cubemx-generated-code-order-of-initialization ?

JW

[SSche.1]

DBart.1

uint16_t *framebuffer = ( uint16_t *)0x24000000 ; // AXI SRAM @ 0x0x24000000 -0x2407FFFF (512 KByte) in domain D1

uint32_t frambuffer_size = 320*240*2 ; // Bytes

[SSche.1]

Is there anyone at STMicro that can confirm and Fix the Bugs in the STM32Cube for STM32H743zit code.

Please send me the contact Info. I'll help in anyway I can.