Forum Discussion

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

Non-tristate cfi flash component in sopc

Hi all, In my system, user logic and sopc system both access cfi flash device(Numonyx 128P30) in TDM mode(time division multiplex). Additional, the flash is AP configuration device for EP3C25....
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

Hi Daixiwen,

I have complete the design, and verify ok. Both user logic and nios can boot from cfi flash now.

But there is a strange problem in this design: nios/e can't boot, but nios/s is ok. It waste me almost 1 day to find this problem. Maybe my hardware has something not very fit for nios's requirement.