> -----Original Message-----
> From: William Couture [SMTP:bcouture@CRIS.COM]
> Sent: Monday, November 11, 2002 7:21 PM
> To:   PICLIST@mitvma.mit.edu
> Subject:      Re: [PIC]: Re-programming 18F452 without erasing EEPROM?
>
>
> I know that it is possible (for example, with a bootloader).
>  What I want is
>    1) Can it be done via ICSP?
>
Yes.  All the flash based PIC's are programmed via the same pins anway,
whether in-circuit or not.

>    2) specific instructions on doing it with an ICD2 and
>       MPLAB 5.xx or MPLAB 6.xx.
>
You cannot do it with 5.xx and the ICD2.  Inexplicably, support for
programming the different memories separately is not present, although it
used to work fine with the original ICD.  The expensive ProMate II
production programmer definately does not support this on any device that
takes more than one pass to program, much to my annoyance.

For the PICSTART+ under 5.xx, after you have enabled the programmer, select
menu item PICSTART Plus | Program/Verify.  The dialog box should have
checkboxes to enable programming of the various memories.  I've not used the
PICSTART+ under 6.00 so I can't comment, but hopefully that feature has been
included.

Mike

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