Robert Rolf wrote :

> Bob Axtell wrote:
> 
> > The programming algorithms for the PIC's have gained 
> > tremendous complexity (needlessly so, methinks) and
> > those parts require a completely new approach
> > in order to program them.
> 
> I can live with a more complex algorithm if it saves me 10
> minutes programming time.

Yep, right.

If I plan to use "PIC model X" and my programmer supports
"PIC model X", then I couldn't care less whatever happens
between the programmer and the PIC itself. Just as with what
happens under the hood of my oscillioscope (well, even
under the hood of my car, b.t.w :-) :-) ).

Now, regarding the original question :

> I built a Tait-style programmer,..
> ...It successfully programs a bunch
> of PIC samples I got (16F627/8), but will not program
> another bunch of samples (16F777, 16F870, etc).

And does the documentation specificaly say that that programmer
should be able to program all those PICs ??

You can probably be (close to) 100% sure that there is nothing
wrong with our samples.

Regards,
Jan-Erik.



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