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STM32N6570-DK with STEVAL-66GYMAI Flickering problem

FB__1
Associate II

Hello,

 

I am using this example: https://github.com/STMicroelectronics/x-cube-n6-ai-h264-usb-uvc

HW: STM32N6570-DK + STEVAL-66GYMAI 


I have this strange behavior only when using the VD66GY. If no motion on the video, i barely see the flickering. However, when i do a little motion in front of the camera, I begin to see white horizontal lines on the  of the video stream, this flickering happens only at around 30fps. Only when I reduce to 15fps it disappears...

 

Also lowering the VENC resolution did not fix it. 

#define VENC_VD66GY_WIDTH

#define VENC_VD66GY_HEIGHT


BTW, The IMX335 works fine at 30fps.

Screenshot from 2025-07-18 00-43-28.png

Screenshot from 2025-07-17 23-59-52.png

Can someone help me ?

 

Thank you.

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