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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

I looked at memtest.c and it seems like my setup is nearly identical. i just dont go about discovering all the flash details like the example. I've checked the values using nios2-flash-programmer --debug.

For a CFI with address range of 0x05000000 to 0x05FFFFFF, shouldnt the code I posted work for writing 0x20000 values to the last block? Shouldnt the code example given in the software dev handbook (p 6-22) work?! Do I need finegrained access?

As for the NEEK/An429 example... thats a little too much to follow to be honest... I just want to write/read from a region on the flash that I know exists without pulling my hair out.