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Altera_Forum
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19 years ago

Cyclone II Serial Config

I'm having a rather odd problem and I was wondering whether anyone else has experienced it. I'm using an M25P40 serial prom with an EP2C20. Standard setup, in fact we reused the schematics fro...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
19 years ago

Maybe because Altera only officially supports its own low cost serial configuration devices... why don't you use an EPCS device from Altera instead. You haven't provided a lot of details about your configuration scheme so it's hard to make any suggestions to you about things to try. Are you using passive or active? Sounds like active. Then you are clearly using a serial PROM that isn't supported.

Try these documents

http://www.altera.com/literature/hb/cfg/cfg_cf51001.pdf

http://www.altera.com/literature/hb/cyc2/cyc2_cii51013.pdf