> I'm not in the programmer design business but...
...
> It seems like it would be trivial to design the programmers

(ref scentence 1) And it shows!

> What am I missing here?

Just a lot of work, most of which is dull testing work. Maybe that is
your definition of trivial? And if you realy think it is easy, why not
do it :)

And note that there is not that much gain when the PIC in the programmer
is a flash, since just two chips will allow the the customer to update
his programmer indefinitely. With an EPROM chip this requires either a
chip for each update, or a /JW chip, which requires an UV-eraser.

Wouter van Ooijen

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Van Ooijen Technische Informatica: www.voti.nl
consultancy, development, PICmicro products

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