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Altera_Forum's avatar
Altera_Forum
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11 years ago

Terasic DE2: Lot of jitter with default SOF, SRAM timing problems, related?

I don't know if anyone could help me with the following issue: when I load up the default SOF (blue background, ALTERA-logo etc) to my DE2 board, I have a _huge_ amount of jitter on the screen. I mea...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

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This leads me to suspect that a) 50MHz clock is bad, or b) I have voltage jittering. Could anyone tell me where to start looking for the problem?

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These are good ideas. Have you looked at the clock and power supplies with a scope?

Which DE2 do you have; DE2 (original), DE2-70, DE2-115? I have all of these boards, so could double check my board if you have specific questions.

Cheers,

Dave