brew-your-own-unibus boards?

From: Ethan Dicks <dickset_at_amanda.spole.gov>
Date: Tue Jan 20 01:01:59 2004

On Mon, Jan 19, 2004 at 10:35:47PM +0000, Pete Turnbull wrote:
> > Is a unibus controller a relatively straight forward TTL design ?
>
> Dunno about the DMA -- probably not hard -- but the rest is
> straightforward.

Software Results made two DMA Unibus boards - one was an excessively
elaborate design, the other simpler, but both used DEC DC013s and a wad of
8461 chips. I don't mind sharing the designs, but they are c. 1982 and
depend on a lot of PALs to do their job. They are both non-trivial.

The problem, of course, is that I won't have access to the prints for a
year. A from-scratch design might make more sense than basing anything
off a COMBOARD.

-ethan

-- 
Ethan Dicks, A-130-S      Current South Pole Weather at 20-Jan-2004 06:50 Z
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Ethan.Dicks_at_amanda.spole.gov     http://penguincentral.com/penguincentral.html
Received on Tue Jan 20 2004 - 01:01:59 GMT

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