Re: another board

John Larkin <jjlarkin@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:

On Sat, 17 Oct 2009 14:52:24 GMT, nico@xxxxxxxxxxx (Nico Coesel)
wrote:

John Larkin <jjlarkin@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote:


ftp://jjlarkin.lmi.net/Board39.jpg

This is an 8-layer mixed-signal thing. On the left is a PCIe interface
to a Kontron mini-ITX sbc.

i/o things and some DDR2 dram to feed the arbs, and a programmable
microengine to fire shots. The FPGA is a Spartan 6/45, which we
actually have now.

Spartan 6 looks nice. Too bad they don't come in PQ208 packages.

We've come to prefer BGA packages. Placement/soldering yield is better
than leaded parts. In fact, we've had zero BGA problems, if you don't
count the one that was placed 90 degrees off.

I know but prototyping / repair gets kinda hard. A few months ago I
wrecked an FPGA. Fortunately it was a PQ208. Ordering a replacement
took me more time than replacing it.

--
Failure does not prove something is impossible, failure simply
indicates you are not using the right tools...
"If it doesn't fit, use a bigger hammer!"
--------------------------------------------------------------
.

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