Forum Discussion

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

On-Chip Memory Access

I am currently designing a dual processor system. One of the processors is a NIOS and the other is external to the FPGA and is a Freescale Coldfire. I have a requirement for both of the proces...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
19 years ago

Hi Paul,

One solution would be to design an external processor interface working as Avalon Master (You can refer to http://www.altera.com/literature/an/an397.pdf), use single port standard on-chip RAM interface and connect it with both the masters (external processor and Nios II) through SOPC builder bus connection interface. You could assign arbitration share as per your design priority. Hope that this should work for you.

Is it necessary to use dual port configuration for on-chip RAM?

-BD