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'[PIC]: Bootstrap Program Downloader'
2001\08\25@140449 by hooch gooch

picon face
Hi, all.
I need to write some code to allow rev-ing
my PIC's main program with a hex file on
a PC and via RS-232 (in the final product
and w/o ICD programmer help).  I have things set up
with MPLINK, with code in the first two
2K pages.  I use the USART during normal
operations too, so how should I partition
the:
   1. Loader code
   2. Regular app (what I'm upgrading)
   3. Common code shared by 1. & 2.
      (USART xmit, its recv in the ISR)

Also, I guess special care must be made
that the loader code is golden!! :)

Thanks!
hooch




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'[PIC]: Bootstrap Program Downloader'
2001\09\01@152953 by uter van ooijen & floortje hanneman
picon face
> Hi, all.
> I need to write some code to allow rev-ing
> my PIC's main program with a hex file on
> a PC and via RS-232 (in the final product
> and w/o ICD programmer help).  I have things set up
> with MPLINK, with code in the first two
> 2K pages.  I use the USART during normal
> operations too, so how should I partition
> the:
>     1. Loader code
>     2. Regular app (what I'm upgrading)
>     3. Common code shared by 1. & 2.
>        (USART xmit, its recv in the ISR)
>
> Also, I guess special care must be made
> that the loader code is golden!! :)

Use one of the proven and free loaders! I have one at
www.xs4all.nl/~wf/wouter/pic/wloader/index.html
The page contains links to the other loaders that I known of. Yopu can of
course re-invent the wheel and chace your bugs yourself....

Wouter van Ooijen

Van Ooijen Technische Informatica: http://www.voti.nl
Jal compiler for PIC uC's:  http://www.xs4all.nl/~wf/wouter/pic/jal

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