PPC access to PROM using Virtex @ pro

[Ram]

Hi,
I am trying to use the embedded ppc in Xilinx Virtex 2 pro FPGA to
reconfigure the same.
I have gone thro the embedded design applications , xapp 058, xapp503.
As I see, those applications had external processors, but what i am
trying to achieve is store bit files in PROM , boot with a file ,
later, access the other file from PROM and reconfigure the entire
device.
It seems, System ACE Cf is a promising solution to this.
But I need help on how to interface PROM with PPC , I am having Xilinx
HW AFX prototye demo board, xc2vp4, ff672 -6 package.
the board has couple of 4MB PROM's which i need to access from PPC.
If not, i have one 8MB SRAM which can be configured using the EDK
tools.
To put it short, I am trying to load bit streams on the fly by
configuring PPC

I would appreciate any advice and help

Early thanks for the time spend to reply.
Ram
University of Oklahoma

 

[Antti Lukats]

ramnathanm@yahoo.com (Ram) wrote in message news:<380c480e.0309230254.138b85@posting.google.com>...

Hi,
I am trying to use the embedded ppc in Xilinx Virtex 2 pro FPGA to
reconfigure the same.

what you want is notreadily available
SystemACE CF is a real cool solution, but you cant use that
the config PROM could theoretically be reprogrammed by the same FPGA it
does configure but this is a realy dangerous technic, if something goes
wrong then the system fully dead.

Atmel FPSLIC appnote descibes similar thing, the FPGA+CPU are booted
from config memory then the configuration memory is reprogrammed using
config interface (in that case I2C). then its rebooting with new
configuration. similar could theoretically work on Xilinx FGPA and config
but you would need to use JTAG interface to reprogram the platfrom flash.

as of reconfig from ram, etc, read the threads about partial reconfig.

antti