Depends on the unit.  Some have DTR (DSR would come from the connected
device) hardwired to 3.3v.  Others you have to access the UART directly to
control some of the control lines.  I don't know what is involved on the
newer 16 pin units.  If what you want to do is not outlined in the SDK
reference, you're going to have to hack it.
A developer wrote software to control the X10 firecracker module (which uses
the control lines only)  Try searching the web for the code, I think it was
called 'sparkle'. ( http://rallypilot.sourceforge.net/ )
You may also get better result posting your question to the Palm
Communication Developer Forum
.

----- Original Message -----
From: "Jeremy Dewey" <[EMAIL PROTECTED]>
To: "Palm Developer Forum" <[EMAIL PROTECTED]>
Sent: Monday, August 12, 2002 11:02 AM
Subject: Re: Serial line manipulation


> By "first three" I meant the first three that I mentioned: CTS RTS and
DSR.
>
> Thanks
> Jeremy
>
> At 8/12/2002 06:15 AM, you wrote:
> >Well the first pin is ground, so there is a 0% chance of controlling it.
> >The next two belong to the USB port.  What use is there to controlling
these
> >two pins that you can't do with the 232 control lines?
> >





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