Honored Contributor
Honored ContributorThe "or so" part doesn't sound very confident. You list different horizontal porch values in your original post. Unless you have a frame buffer, the input and output video timings must be perfectly synchronous with each other or else you will have problems.
The 'or so' is because i tried a stack of different values by programming them into the tvp7002; none changed the behaviour. I've tried with a frame buffer to no avail. What else is in your chain when testing the clocked video input? Have you tried using just clocked video in and clocked video out both using the same 50Mhz video clock? Yeah, I just did a loop back with a counter to generate a signal and suprise! It works. I'll add the frame buffer back in and then try to get the signals from the TVP to work again. They must have a problem, some kind of incompatibility. You've been a good help, thanks.
