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Altera_Forum's avatar
Altera_Forum
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16 years ago

Read/Write CFI flash

I am using a Cyclone III starte board for some initial design. I am using the CFI flash for configuration and code storage, but I'd like to use unused space for non-volatile storage. I have tried t...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

UPDATE: Success! As it turns out, for whatever reason (perhaps someone here can enlighten anyone who may be reading?), programming the CFI flash did not work until I burned the FPGA config AND code into the flash and runnint the system in standalone mode. Running it either in debug mode or on the NIOS over JTAG did not allow for writes.

So, apparently the code works fine, with that caveat. Perhaps it is mentioned in some document somewhere? Hopefully this helps out anyone else who may have had a similar issue!