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Altera_Forum's avatar
Altera_Forum
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10 years ago

Cyclone V active serial configuration w/ EPCS128 failure.

Hi all, I have run in to an issue on my custom board that I can't seem to figure out. - The board has an active serial configuration setup. The EPCS128 is programmed by an external program...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

It sounds like it's detecting an error in the bit stream. It checks the CRC of the bitfile at the end. If there is an error it will retry. It may be a clock integrity issue. You want to check on the clock signal to the EPCS to make sure it's clean, and maybe work on the termination a bit.

Pete