Good tip. I will keep this in my tip file.
Thanks.
> Mike Davis wrote:
> > Let me start off by saying "I hate RS-232".
>
> RS-232 is not a problem as long as you have
> a few tools and some patience.
>
> > I'm using Port A (on the SIO) and have configured the A3 Jumper to
> > have
>
> You might change the A3 jumper (temporary) by
> REMOVING jumpers:
> TD Pin 1 to Pin 15 RD
> RD Pin 2 to Pin 16 TD
> and INSTALLING a jumper:
> RD Pin 15 to Pin 16 TD
> This will give you a loopback to your terminal that
> will test your cabling and the correctness of the
> handshaking with your terminal.
> If this does not work, I would look at the
> handshaking first.
>
> If that works, and you have a logic probe, you
> could change the A3 jumpers back to their original
> jumpers and using the logic probe, test for the
> pulses being received at pin 3 on the 8251 at
> B5.
> --Doug
> =========================================
> Doug Coward
> _at_ home in Poulsbo, WA
>
> Analog Computer Online Museum and History Center
> http://dcoward.best.vwh.net/analog
> =========================================
Received on Tue Feb 18 2003 - 06:46:00 GMT