Honored Contributor
Honored Contributor"flickering" can originate with the frame buffer component when it is either not connected correctly, or is connected correctly but there is insufficient bandwidth to the memory to handle the video.
It's the first thing I would look at. My suggestion is to put SignalTap on all the frame buffer ports (din/dout, reader/writer masters) and rule it out. On the master ports, you're looking for nice long continuous bursts (as long as the burst length you have programmed). On din/dout, it depends on your system, but in general you're looking for deassertions of the 'ready' and/or 'valid' signals.
