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Altera_Forum's avatar
Altera_Forum
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15 years ago

Problems with FLEX10KE

Hi all, I have same firmware that burned on many boards. on 40% of the boards it runs without any problems. on other 60% it gives wrong results. I know for sure that the problem is in the FPGA...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

What is the clock rate of the design? Do the designs all meet timing?

Will the design function at a lower clock rate? Try reducing the clock rate on the bad boards and see if the problem clears. If it does, then its probably timing related.

Have the boards worked in the past, and they are now failing, or have they never worked?

What is the design? Does it depend on external interface logic? I have FLEX10KE boards that could be used for a comparison test.

http://www.ovro.caltech.edu/~dwh/correlator/cobra_pics/cobra_corl.jpg (http://www.ovro.caltech.edu/%7edwh/correlator/cobra_pics/cobra_corl.jpg)

Cheers,

Dave