Hi
        Like Mike says, Go into the ini file, and edit the com port setting
to the required port. MPLAB highlights the com ports that windows has
available. But I remember having this problem. I wanted to use com 3 but
MPLAB greyed the option out. I set the ini file to com 3 and it worked for
me.

Check out the PICSTART+ help file / Trouble shooting / Failure to establish
communications / , It mentions this very thing and to edit the ini file.

Regards

Clive Frederickson
R&D Technician (CECF Group)

        ----------
        From:  Dipperstein, Michael [SMTP:mdippers@HARRIS.COM]
        Sent:  30 March 2001 00:04
        Subject:  Re: [PIC]:MPLAB ini file

        > From: Alan Gorham [mailto:alan@MICROTIMA.CO.UK]
        >
        > Thanks to both of you who answered this.
        > However, I think that I haven't made clear my problem, so here
goes:
        >
        > If I go to: " >Options ~> Programmer Options ~>
        > Communications Port Setup" I
        > can only select COM 1 or COM 2. Both of these ports are kinda
        > busy on my PC
        > and so I was wondering if there is a clever way to change the
        > mplab.ini file
        > to make COM 3 or COM 4 available?
        >
        > I'm sure someone mentioned it on the list in passing, but I'd
        > like a bit
        > more info if possible please?
        >
        > Alan

        Alan,

        If you open the MPLAB.INI file with your favorite text editor, you
can manually
        change the port setting.

        Go to the section with the heading "[programmers]".  Under there you
will find a
        setting that says "CommPort=1" or "CommPort=2".  Change the '1' or
'2' to a '3'
        or '4' and save the changes.

        I've tried this using COM 3, and MPLAB shows that I have configured
the
        programmer to work on a grayed out "COM 3".  Since I don't have a
COM 3, the
        programmer shouldn't work for me.  Hopefully it will work for you.

        -Mike


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