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720p video capture on DM6437

Mitul
Prodigy 30 points

Hi,

I am trying to capture 720p video on DM6437 EVM in YCbCr 16-bit mode, with external sync.

My video source generates 720p video in BT-1120 format, with external sync signals (HSync, VSync, FD). And it has 74.25MHz pixel-clock. I have configured DM6437's VPFE in YCbCr 16-bit mode, VD/HD Enable (input), DataSz=16bit, Pack8=0

Attached is the snapshot of captured video. I can see the Y-data is captured correctly, but C-data is not coming properly. Any suessions on how to solve this issue? I probed the CCD8-15 lines, and didn't see any issue in data.

 

Do I need to enable "Turbo mode"? Is there any register/pin I need to set for Turbo mode?

 

Thanks in advance,

Mitul Chokshi (www.einfochips.com)