STM32H7 DCMI or OV9655 configuration issue?

[Dat Tran]

Hi everybody,

ST has an example for OV9655 from STM32Cube_FW_H7_V1.5.0

We use the configuration for VGA mode, without any change. Most of the time image good and clear. Just sometime, when reset the board, a noise picture appears as below.

Once noise picture issue occurs, it will stay there all the time, until initialize the camera again (or reset the board that will reset everything)

And same for good image, once it is good, it will be always good.

Does any one know about this issue, please?

Thanks a lot for the help!

[Imen.D]

Hello,

I recommend you this AN5020 Application note "Digital camera interface (DCMI) for STM32 MCUs" that helps you on DCMI configuration and check some parameters like: the pixel clock, the supported data format and the resolutions

Best Regards,

Imen