Forum Discussion

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

Multiprocessors and Flash Devices

I am interesting designing a Multiprocessor Nios design with a flash device(or alternative memory device) to store the different codes for each processor. What type of flash devices do people general...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

In a multiprocessor system you will store each boot image at different memory offsets of the same flash device. For example:

processor 1 : boot from 0x00000

processor 2 : boot from 0x20000

processor 3 : boot from 0x40000

....

These addresses are those you specify when you generate the Nios core, namely the reset address in Nios II properties page.

AFAIK all parallel flash memories (at least classic NOR devices) have a CFI.

See for example Am29LV or M29W or S29GL devices.