Need a RS232 interface transputer tram

From: Ram Meenakshisundaram <rmeenaks_at_olf.com>
Date: Thu Nov 11 16:07:35 1999

Tony Duell wrote:

> > > > called STM220. Thanks
> > >
> > > You know, I wonder if it would be less work to take a T2 and hang some
> > > kind of serial chip off it. Should be able to make said RS232 TRAM in 4
> > > or 5 chips.
> >
> > If I knew how to do it, I can probably put it together. Here are pictures of
> > Sundance's STM220 RS232 tram
>
> Pick your favourite serial chip. Link it to the T2 bus, using a PAL for
> address decoding and/or to fiddle the R/W .vs. Wr/ and Rd/ signals.
> That's about it.
>
> Seriously, it's easy to design with transputers. The bus is designed to
> be easy to link things up to. I really think this is a morning's work at
> most...
>

Unfortunately, I have very very little electrical background (almost nothing).
I can but circuits together, but that is just about it :-(

>
> Incidentally, I've just looked across the room and noticed that INMOS did
> make a transputer board with 2 RS232 ports on it. It's the B001 -- a T4 +
> RAM + EPROMs + a couple of RS232 ports (using an SCN2681 chip). It's not a
> TRAM, though, it's a 6U extended eurocard.
>

Hmmm, got to take a look at it. I might have some old product brochures laying
around somewhere...

>
> I am sure I could design a RS232 TRAM, but I am not going to suggest a
> circuit that I've not personally built and tested. And I don't think I'm
> going to be building one soon...

Too bad, it would make a perfect GNU-style hardware project. Any takers??? BTW,
I am planning on connecting the Lego Mindstorm kit to the transputer so that i can
do some cheap robotics off the transputer farm I have. That is why I need an
RS232 tram for....

Ram


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|                        Ram Meenakshisundaram
|                        Senior Software Engineer
|                        OpenLink Financial Inc
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