Dwayne Reid wrote:
>
> >What's the usual procedure, board-wise, for making sure my PIC can be
> >programmed in-situ?
> >
> >My current plan is to use jumpers to isolate those 5 pins from the rest
> >of the circuit. There are other ways to isolate it, I know, (diodes,
> >etc.) but this seemed cheap and clean, and would also provide an
> >attachment point for the programmer (pull the shunts, plug in the
> >programmer). Does anybody see any problems with this approach? Are there
> >better ways? Any advice appreciated.
> >
> >Dave Johnson
>
> I recall that an early Circuit Cellar Ink magazine article by Russ Reiss
> proposed just such a scheme where he used a 2x5 header - this gave him
> access to VCC, MCLR, data, clk, GND.  Others, both on this list others, have
> adopted his pinout as their standard - unfortunately, I don't remember it
> and the magazine is at home.  Maybe someone else has it handy.

You will find everything you need including the Dr. Russ Reiss header
pinout at:
http://www.dontronics.com/dt001.html

This Simmstick version uses a 4pdt switch to do the isolation so you
have a true load and go switch for the 84 anyway.
Program it, flick the switch, run the program. It's been around since
feb 95 and thousands are now in use.

Don McKenzie  mailto:don@dontronics.com   http://www.dontronics.com

Don's Download Dungeon: http://www.dontronics.com/download.html
For more details, send a blank message to mailto:info@dontronics.com
or mailto:simstick@dontronics.com or mailto:basics@dontronics.com