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