I've custom board with adv7280. When I capture data with gstreamer, in 40.minutes (sometimes) the pipeline records "0". Why this happen ? In evaluation kit I've not seen this problem.
Not Recommended for New Designs
The ADV7280 / ADV7280-M are versatile one-chip, multiformat video decoders. The ADV7280 / ADV7280-M automatically detect standard analog baseband video...
ADV7280 on Analog.com
I also tried on ADV7280 eval board. It has same problem. I use just LLC and 8bit data from ADV7280 chip.
I do not connect SYNC pins(HS/VS). Because, in datasheet of ADV7280, it says that synchronization signal is embedded in 8bit data (attached photo).
Why Sync(Hsync/Vsync) has loss ? What's solution of this problem? Is this ADV7280 chips' general problem?
Could you please refer below thread,
Also let us know, Whether you can able to get the signals from Pixel port & LLC pins from ADV7280 part ?
It Seems ADV7280 part is working properly as per your comment ("LLC and Data bits, I can get them") and assuming are you using the software that comes with that reference design to configure the board at http://wiki.analog.com/resources/eval/user-guides/ad-fmcomms1-ebz/quickstart/zynq
Please crosscheck your driver with https://github.com/analogdevicesinc/linux.git
Git checkout xcomm_zynq