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'[PIC]: 18FXX2 bootloader and availability?'
2001\11\04@145606 by Ron Hackett

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According to the data sheet, the 18FXX2 series (242, 252,442 and 452) are
all capable of self-programming, which I assume means that they can be
programmed with a bootloader.  Does anyone know where I could find a
bootloader for this series PICs, or if it's just a matter of a few minor
changes, how a 16F87X bootloader might be modified to work on the 18FXX2
series.  Also (while I'm asking :-), I haven't been able to locate a source
for these chips (or for the 18F0X0 for that matter).  Any leads in this area
would also be very helpful!

Thanks... Ron


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2001\11\04@180722 by Olin Lathrop

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> According to the data sheet, the 18FXX2 series (242, 252,442 and 452) are
> all capable of self-programming, which I assume means that they can be
> programmed with a bootloader.  Does anyone know where I could find a
> bootloader for this series PICs, or if it's just a matter of a few minor
> changes, how a 16F87X bootloader might be modified to work on the 18FXX2
> series.

Despite Microchip's claims to the contrary, the 18xxx series is not just
upward compatible with the 16xxx although there is great similarity.  You
won't be able to just plunk a 16F87x boot loader onto a 18Fxx2, but
converting one should be less work than creating a new one.  On the other
hand, creating a new one isn't that hard to begin with.  Sometimes it's nice
to start with a clean slate and you end up with exactly what you want
instead of fighting with someone else's bugware all the time.

> Also (while I'm asking :-), I haven't been able to locate a source
> for these chips (or for the 18F0X0 for that matter).  Any leads in this
area
> would also be very helpful!

The 18Fxx2 are not released yet.  They are in beta now, and scheduled for
full availability Q1 2002.


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Olin Lathrop, embedded systems consultant in Littleton Massachusetts
(978) 742-9014, spam_OUTolinTakeThisOuTspamembedinc.com, http://www.embedinc.com

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2001\11\04@195157 by Andrew E. Kalman

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Re:

>According to the data sheet, the 18FXX2 series (242, 252,442 and 452) are
>all capable of self-programming, which I assume means that they can be
>programmed with a bootloader.  Does anyone know where I could find a
>bootloader for this series PICs, or if it's just a matter of a few minor
>changes, how a 16F87X bootloader might be modified to work on the 18FXX2
>series.

One of the courses at the Microchip MASTERS seminar specifically
addressed the issue of bootloaders in the PIC18 series. It skimmed
the class notes and they were reasonably detailed. The PowerPoint
slides, etc. were on the CD-ROM given to attendees.

I do not know if the CD-ROM is freely available -- you may want to
contact your Microchip rep and inquire whether he can get you one.
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2001\11\04@204230 by Jeff DeMaagd

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----- Original Message -----
From: Andrew E. Kalman <aekspamKILLspamPUMPKININC.COM>

> One of the courses at the Microchip MASTERS seminar specifically
> addressed the issue of bootloaders in the PIC18 series. It skimmed
> the class notes and they were reasonably detailed. The PowerPoint
> slides, etc. were on the CD-ROM given to attendees.

Out of curiousity, in the PIC world, what does it take to be qualified or
invited to the "Masters"?  Money?  Exceed certain sales volumes?

Jeff

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2001\11\04@222440 by Andrew E. Kalman
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Re:

>Out of curiousity, in the PIC world, what does it take to be qualified or
>invited to the "Masters"?  Money?  Exceed certain sales volumes?

I believe it's open to anyone. But it's not free.

This was my first MASTERS. Attending were lots of Microchip and Third
Party people (both presenting and attending classes), as well as many
end-users who have a vested interest in where Microchip is going,
etc. It was a very nicely run event.

Sales pitches are actually discouraged at the MASTERS -- it's
supposed to be more of a technical pow-wow.

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2001\11\05@071207 by Ron Hackett

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Thanks for the response.  I was wondering why it was so difficult to locate
info about the 18FXX2.  Has the 18F0X0 also not been released yet?  That
seems to be a phantom as well!

Ron



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2001\11\05@071410 by Ron Hackett

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Thanks!  I'll see if I can track down the CD.

Ron



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2001\11\05@085702 by Olin Lathrop

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> Out of curiousity, in the PIC world, what does it take to be qualified or
> invited to the "Masters"?  Money?  Exceed certain sales volumes?

No, just money.  And the time to go to Arizona in the middle of the summer.


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Olin Lathrop, embedded systems consultant in Littleton Massachusetts
(978) 742-9014, olinEraseMEspam.....embedinc.com, http://www.embedinc.com

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