[rescue] Interface info for IBM Dials and Buttons boxes?

[Corda Albert J DLVA]

Yep, I know... I'm the one who discovered it, when I was playing
with one of SGI's more "mature" trackballs, quite a while back.

I just haven't gotten that far with this yet... I'm still tracing
out the power and serial connection pins. This is yet again another
one of those nifty gizmos that is a pleasure to trace out... Max232
interface IC, 80C51 microcontroller, standard 7400 logic chips...
the only stumbling block will be figuring out the command protocol.


-al-
-acorda at 1bigred.com



> -----Original Message-----
> From: Paul Sladen [mailto:sun-rescue at paul.sladen.org]
> Sent: Thursday, February 21, 2002 12:18 AM
> To: 'rescue at sunhelp.org'
> Subject: Re: [rescue] Interface info for IBM Dials and Buttons boxes?
> 
> 
> On Wed, 20 Feb 2002, Corda Albert J DLVA wrote:
> >
> > and 6094-010). Physically, they look very similar to the dials and
> > buttons boxes used on SGIs.
> > 
> > So far, I've been able to determine that these are RS232 interfaced
> > critters.
> 
> Try sending it an `h'--not as daft as it seems;  one of the 
> various SGI
> gadgets replies with a help screen on how to communicate with it.
> (Spaceball?).
> 
> 	-Paul
> -- 
> Nottingham, GB
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