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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

Well, my reset vector is in flash, and my exception vector is in ddr... I was under the impression that when setup in such a way, the NIOS system copies the code from flash to ram on bootup and would therefore not need to access the flash anymore.

I am probably wrong, as most assumptions are at least partially flawed.

Anyway, it is nice to know that my code does work. I just wish things were a bit more cut and dry with the NIOS... I've spent a lot of time reading and writing code, looking thru the documentation, etc, and there are so many subtle nuances that still get me.