Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Help for storing nios II software and fpga config in flash

Hi, I need some help about storing fpga configuration and nios software in a extern flash. I'm using pci dev kit from altera which has a stratix II gx, a 512 Mb CFI flash and a epm570 with...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

it is not a bug.

26 bits are the address span for 8 bit devices (counting in bytes)

25 bits are for 16 bit devices (words)

if your cfi flash is a 16 bit type then you must not connect nios address bit 0 as this bit would always be 0 due to 16bit accesses and so no odd addresses used.

so just do not connect nios a[0] that comes from the tristate bridge

connect nios a[1] to the lowest adr.bit of your cfi flash device