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Altera_Forum's avatar
Altera_Forum
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16 years ago

CFI FLASH access from Nios IDE

Good afternoon. Unfortunatelly, i didn't find the solving of the problem with CFI Flash, so i decided to create a new thread. I have Cycolne III Dev Kit and flash on the board and want to...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

I had the same problem 3 weeks ago.

The CFI flash is a 16-bit addressable device. I guess you have it wired up as if it was 8-bit addressable.

Connect bit 1 of the NIOS address to bit 0 of the CFI device in your Verilog

eg

flash_padd[22..0] = nios_mod.address_to_the_cfi_flash[23..1];

flash_padd[23] = clr;

hope that helps ...

Bruce