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marqs_ic's avatar
marqs_ic
Icon for New Contributor rankNew Contributor
4 years ago
Solved

Clocked Video Input II vid_datavalid width is 1 regardless of pixels in parallel parameter

Hi, I'm feeding oversampled video into CVI II IP and trying to make it only read every Nth pixel. There seems to be vid_datavalid signal for exactly this purpose, but its width does not get expand...
  • ZH_Intel's avatar
    ZH_Intel
    3 years ago

    Hi marqs_ic,

    Good day.

    Thank you for your input.

    Will convey it to our internal team on this.

    Do you still have further inquiries on this issue?

    If there is no further question, I will transition this thread to community support.

    Thank you.

    Best Regards,

    ZulsyafiqH_Intel

ZH_Intel's avatar
ZH_Intel
Icon for Frequent Contributor rankFrequent Contributor
4 years ago

Hi marqs_ic,

Good day.

Based on your reply, I believe that the vid_datavalid bit is deasserted due to not oversampling the input video.

According to the VIP Suite user guide, the CVI need to tie the signal high if you are not oversampling your input video.

CVI for Seperate Synchronization Format Video

Link: Video and Image Processing Suite User Guide - 3.1.3. Separate Synchronization Format

Would you mind sharing with me how you do that?

Any documentation/guide you are referring at?

Thank you.

Best Regards,

ZulsyafiqH_Intel