SMT PDP-8 (was Re: group buy for homebrew CPUs?)
vrs at msn.com
Mon Aug 14 01:42:00 CDT 2006
From: "Josef Chessor" <josefcub at gmail.com>
> On a related note, but a separate question, does anyone actually have
> the wiring schedule for a PDP-8/S backplane? A long time ago, I was
> willing to start constructing flip chip modules that made up a PDP-8,
> but I could never find the wiring schedule for the backplane online so
> that I could truly build the computer.
> (I'm great at assembly[sic], horrible at design).
AFAIK, no. The easiest way I know to recreate it is to simply redraw the
schematic in question. I have libraries for a lot of M-series modules,
the relevant connectors, etc. It wouldn't be that hard to create an R/S
series library, and then use that to redraw the 8/S or straight-8. It
is many hours of somewhat tedious work, though. (I did it for the TC08.)
Once it is redrawn, one can export the netlist, and I even have some Perl
to convert that into wire lists suitable for wire-wrap :-).
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