Re: [oc] Re: PCI resources (fwd)

["MikeJ" <mikej@freeuk.com>]

pci core soon hopefully !
If you are laying out a pci card for the xc xla devices timing will be tight
even at 33mhz - but it can be done.
I would suggest putting all the pci control pins (frame,
irdy,trdy,stop,devsel at least) beside each other in the middle of one side
of the device by a clock pin.
You may know this already, but wiggle the pci clock track so it is 2.5
inches long and keep all the other pci signals less than 1.5 inches long.
Cheers,
MikeJ

----- Original Message -----
From: "Graham Seaman" <graham@seul.org>
To: <cores@opencores.org>
Cc: <jbass@dmsd.com>
Sent: Sunday, September 16, 2001 1:39 PM
Subject: [oc] Re: PCI resources (fwd)


> I'm forwarding this to the opencores list in the hope that someone
> here will be able to help. Hope that's ok with everyone.
>
> Graham
>
> ---------- Forwarded message ----------
> Date: Sat, 15 Sep 2001 14:28:13 -0600
> From: John L. Bass <jbass@dmsd.com>
> Subject: Re: opencollector PCI resources
>
>
> We picked up several hundred surplus XCV300E's, XC4085XLA's and
XC4062XLA's, and
> several of us are thinking about doing a couple proto's run's for school
project
> boards, at least one of which we would like to be PCI foundation
recofigurable
> computing protos. We have parts to build about 100 boards out of the
XC4085XLABGA432's
> and a few dozen of the others. About half will be consumed by local
students, the
> rest will be available to others. We are still deciding what to put on the
cards,
> but current guess is they will be pretty bare with I/O headers for project
cards and
> cost about $150-200 ea (depending on how large an initial run we can
afford given
> the high SMT proto fab costs). The FPGA's have enough gates and I/O's for
some interesting
> projects, and we are trying to keep the finished boards affordable
(limited student
> budgets).
>
> Any comments about what you guys would like to see on an FPGA PCI proto
board?
>
> We were hoping to find a pretty complete FPGA PCI core with mastering that
wouldn't
> require a lot of restructuring for the proto cards, or team with someone
already
> well down that path (maybe in exchange for one of the cards).
>
> Thanks,
> John
>
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