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Altera_Forum
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17 years ago

DE2 PCB 2.x TV Decoder incompatibility

I've developed a frame grabber that runs on a 2006-vintage DE2, using the onboard ADV7181B decoder. I ordered a new DE2 last week (standard, NOT the DE2-70), and the board that came is PCB revision ...
Altera_Forum's avatar
Altera_Forum
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17 years ago

One last update: it turns out you are able to get 1.X code working on a 2.X board without major modifications. It requires re-assigning the OSC_27 pin (change D13 to C16) and buckling down the timing constraints in the fitter. The reassigned pin isn't a dedicated clock input on the FPGA, and I saw some video artifacts until I fixed the timing.