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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
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11 years ago

The "best solution" should be determined by the interface logic, eg., use a pattern generator to fill and pattern checker to check the SRAM read data, and then sweep the transmit or capture clock to determine the eye pattern to the SRAM.

You can adjust the clock phase using the ALTPLL_RECONFIG component ... I posted an example here

http://www.alteraforum.com/forum/showthread.php?t=46527

Cheers,

Dave