Moin,
On Sun, 11 Nov 2007 20:41:27 -0600
Terry Hancock <[EMAIL PROTECTED]> wrote:
> Since so many of the FPGA pins are general purpose, I think it will also
> be useful to identify what *we* are using the pins for -- i.e. which
> buses they are connected to. I'll start working on that in connection
> with the schematics.
I'd wait with that part until the schematics are absolutely final.
IIRC there were some corrections to be done after the last "release".
> I appear to have finally figured out the packaging for the Lattice XP10.
> I was thrown by the cruciform/patches pattern on the board, but after
> some study I realized that the dots on the back of the board are the
> vias, and they are offset diagonally from the balls (Duh! No pins).
Pins? Who uses pins these days? ;-)
> I still have a little ambiguity with the Spartan, though...
>
> The Bill of Materials says the Spartan 3S4000 we are using is the 900
> ball variant, but the PCB layout sheets still show this 676 ball version.
The PCB is still from the revG schematics which is over a year old.
Use the latest BOM and schematics as reference.
> BTW, the datasheet link for the Spartan 3 family is broken. I found a
> copy using the IA. I think they just moved it, though, as I'm getting
> some likely looking links with Google. But it'll have to be found again.
IMHO we should collect all datasheets of the parts we use and put
them onto a webiste. Although most of them are freely available online
it always takes some time to look for them.
Attila Kinali
--
Praised are the Fountains of Shelieth, the silver harp of the waters,
But blest in my name forever this stream that stanched my thirst!
-- Deed of Morred
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