DCMI is not working in STM32U5A5Z

[achovy]

hello

 

OV2640 is used as the camera module 

I use this fuction  HAL_DCMI_Start_DMA(phdcmi, DCMI_MODE_SNAPSHOT, frameBuffer, length); 

 

And I'm going to receive data through UART.

However, the data is not coming.

 

If you have any good ideas, please let me know

 

I'm attaching my code here.

[KDJEM.1]

Hi @achovy ,

I think that you want to capture a JPEG data.

 

hdcmi.Init.JPEGMode = DCMI_JPEG_ENABLE;

 

For that, it is recommended to update the camera module configuration in ov2640.c as mentioned in AN5020 section 8.3.7 JPEG data capture.

May How to configure the GPDMA? article can help you.

I hope this help you.

Thank you.

Kaouthar