Re: [microblaze-uclinux] general questions S-IIE

[John Williams <jwilliams@xxxxxxxxxxxxxx>]

Richard Klosinski wrote:
> You need 8k of bram at 0 for vectors, etc, and another 8kx2 for cache. 
> You can run w/o cache, but at 10^th speed. Also, mac sucks up bram for 
> fifos’. Opencore.org has a free mac, but I don’t know if drivers are 
> available, and you will still need a phy chip. I might go external.

Just to clarify, you could use a minimum-sized BRAM block (2K?) at 
address zero for the vectors - you just need some way to get the kernel 
image into external RAM and launch it.

Also re: external MAC/PHY, I agree with your analysis - since you need a 
an external PHY chip anyway (AFAIK FPGA IO can't drive the magnetics 
directly), you might as well move the MAC out there as well and save the 
LUTs/BRAMS for something more interesting.

Cheers,

John
___________________________
microblaze-uclinux mailing list
microblaze-uclinux@itee.uq.edu.au
Project Home Page : http://www.itee.uq.edu.au/~jwilliams/mblaze-uclinux
Mailing List Archive : http://www.itee.uq.edu.au/~listarch/microblaze-uclinux/