I am running MPLAB 5.70 on two computers (my desktop and my notebook), and I
share one PICSTART Plus (fw v.3.0) between them.  I have no problems with
this configuration on my desktop (running W2K). The notebook, running XP,
causes the same problem you described.  I just assumed that this was one of
the compatibility issues with XP - note that it is not on the list of
supported OS's.

To get around it in the field, I learned that this is a semi-random error.
If it doesn't program correctly on the first attempt, it will by the second
or third try.  It's a little slower this way, but it's easier than changing
the OS on a notebook and finding all new proprietary drivers that work
*properly* - especially since I get paid for time with a client, and I don't
get paid for upgrading my computer.

Jen

> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Dave Mumert
> Sent: Wednesday, August 21, 2002 10:18 AM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [PIC]:PICStart+ and 18F452
>
>
> Hi All
>
> I get the same sort of problems since I upgraded to FW 3.0.
> The PS+ works
> fine with the older FW.  Since the only change to the system
> was going from
> FW2.3 to FW3.0 I can pretty safely conclude that the problem
> lies with the
> new FW.
>
> I sent a message to tech support at Microchip but got back a
> generic answer
>
> 'Make sure you have the FIFO box not checked.  All of our
> suggestions for
> communication problems with the PICSTART Plus programmer are
> contained in
> the PICSTART Plus help file under Troubleshooting Common Problems. '
>
> I thought this was a bit insulting, as I had indicated in my
> message that I
> had tried all that already.
>
> Let us know if you get this resolved.
>
> Dave
>
>
> > I've tried MPLAB 5.70.00. I upgraded my PICStart+ firmware
> to the latest
> > version (3.0.00) and tried to read the contents of an
> 18f452. It hangs at
> > address 0x7FE2 and puts up a dialog box:
> >
> >    Communication error
> >       Cannot Receive.....
> >
> >        [0000,00,00,54]
> >
> > I've also occasionally see the error:
> >
> >   Connect
> >     Unsupported programmer detected, 28
> >
> > (I assume they're referring to the PICStart+ and not me.)
> >
> > I figured my 4 year old PICStart+ was now too old. So I
> bought a new one
> > and $200 bucks later see the same damn error.
> >
> > Do I have a couple of boat anchors now or does anyone know
> what may be
> > happening?
> >
>
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