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Altera_Forum
Honored Contributor
14 years agoHD SDI and Clocked Video Input issues
I'm having trouble integrating an HD SDI transceiver into my existing Stratix IV GX video design. I've ended up stripping it down to a single video path and integrating in the AN600 design to debug ...
Altera_Forum
Honored Contributor
14 years agoSo that didn't completely fix the problem. The Avalon ST ready signals now look like a clock with a 70-30 duty cycle and the video still looks like 3 sets of color bars across with the scrolling zig zag.
I've moved the frame buffer between the CVI and the CRS to see if I can at least get a full frame buffered. Interestingly, the UDX4.1 reference design uses a 148.5MHz video core clock with the following video pipeline: CVI -> AFD Extractor -> Switch -> Clip -> Snoop -> MA Deint -> AFD Clip -> Scaler II -> VFB -> CRS -> CSC -> ........ There has to be something else up in my system. I'm going to work on getting a sim up and running.