[AG-TECH] Re: Display Machine Performance

John Shalf jshalf at lbl.gov
Fri Mar 15 17:17:39 CST 2002

Yes, it is pretty much a thru cable.  I was originally using
a cable with CTS tied to RTS on both ends rather than a thru
connection (defeating the hardware flow control).  In
addition to turning on the flow control for the Gentner
Unit, you have to enable CTS/RTS flow control on Win2k as
well (it appears to be disabled by default and also causes
this problem). 


Robert Olson wrote:
> Ah, good point. What was the proper cable -- we've been using standard DB9
> straight-thru cables.
> (Probably worth checking settings on the software too, to make sure flow
> control set right there).
> --bob
> At 10:52 AM 3/15/2002 -0800, John Shalf wrote:
> >I had some issues with APware freaking out because I was
> >using a serial cable that didn't have CTS and RTS set up the
> >way that Gentner required.  So their serial driver spent all
> >of its time agressively polling the serial port for
> >messages.  Soldering up a proper cable and enabling hardware
> >flow control made the problem go away.

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