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SSenn's avatar
SSenn
Icon for New Contributor rankNew Contributor
6 years ago

EPCQL1024 doesn't response anymore, only with 0xFF

Hi, I have a critical Problem with an Intel EPCQ-L Serial Configuration Device. When I try to configure the EPCQL via the "JTAG indirect configure" feature (JIC file), the EPCQL only returns 0xFF ...
ak6dn's avatar
ak6dn
Icon for Regular Contributor rankRegular Contributor
6 years ago

Typically to resolve an issue like this I would desolder the EPCQ part from the 'bad' board and swap it with an EPCQ part from a 'good' board.

The error will follow the part if the EPCQ part is bad, or it the error stays on the board the FPGA it is attached to is likely bad.

If the error follows the EPCQ part then I would return it to the manufacturer for F/A.

If you are just a s/w development house (no h/w capability) I would return the bad board to the manufacturer as they would have to follow the above debug process.