> -----Original Message-----
> From: Olin Lathrop [SMTP:olin_piclist@EMBEDINC.COM]
> Sent: Sunday, February 23, 2003 1:54 PM
> To:   PICLIST@MITVMA.MIT.EDU
> Subject:      Re: [PIC]: Trying to re-program a 12C508A
>
> > You don't need a new Picstart+, just a reprogrammed 17C44 (if I remember
> > right).  A long time ago I bought two of them so that I write the new
> > firmware to one while using the other in the programmer with the
> > previous firmware.  Don't wait too long to upgrade either.  Some day a
> > new version of MPLAB may refuse to talk to an old version of Picstart+
> > and you're hosed.
>
> I forgot to mention, make sure to get the JW version of these parts.  That
> is the only erasable flavor.  And hold onto your wallet, a pair of them
> will set you back around $25.  This is really an additional hidden cost on
> the already overpriced Picstart+, but of course Microchip doesn't tell you
> about this up front.  They don't even include a JW version in the
> programmer.  It's an OTP part you have to toss after the first upgrade,
> grrr.
>
Personaly I have kept the OTP part and bought one JW.  To upgrade I just
replace the JW with the OTP part, erase the JW and program it, then swap
them.

Mike

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