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mateijordache's avatar
mateijordache
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3 years ago

Cyclone III + EPCQ AS configuration corruption / flash wipe

Hi, We recently have started having some issues with a design that we have been using for several years now. Basically, the problem is that there is intermittent FPGA booting, eventually total fa...
mateijordache's avatar
mateijordache
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3 years ago

Hi YuanLi-

It's not a matter of bit flipping or failed CRC check- the entire memory is erased. For a serial memory that seems like it would need to be intentional. Besides, all of the systems we shipped with this design do not have this problem, it's just a few boards (3 of ~80), so I don't think it's something like EMI produced locally on the board, and the entire system is shielded via a large enclosure, so I don't think something like solar flares is to blame.

Has some problem like this never been reported before?

Thanks,
Matei