What is the purpose of DEMO_CAMERA_BUFFER_COUNT in demo csi_mipi_yuv.c?

Mc2023 · ‎07-05-2023

Hello All,

Remark: I am using i.MX RT1160 Evaluation Kit.

Best regards,

Miguel04 · ‎07-06-2023

Hi @Mc2023

It is the size of the empty frame buffer to transmit to the buffer queue of the camera.

Best Regards, Miguel.

Mc2023 · ‎07-06-2023

Hi @Miguel04,

Thanks for your reply!

Could you tell me why the value was set to 4?

Best regards,

Mustafa

Miguel04 · ‎07-06-2023

Hi @Mc2023

Could you tell me which example are you using? I have DEMO_CAMERA_BUFFER_COUNT set to a value of 3.

Best Regards, Miguel.

Mc2023 · ‎07-06-2023

Hi @Miguel04,

I am using the demo: evkmimxrt1160_csi_mipi_yuv_cm7

Best regards,

Miguel04 · ‎07-06-2023

@Mc2023

It is a parameter for the camera used, on the readme file the example says it use the OV5640 camera, and in the datasheet it is specified that the camera needs Two frames after the strobe request is submitted, the third frame is correctly exposed.

Best Regards, Miguel.

Mc2023 · ‎07-06-2023

Sorry! Yes the value is 3