Dear PIC'ers

As usual I have this problem ... I haven't seen anything written about
serial in-circuit programming of the 16LC84, aside from the little bit in
the data book on page 52.  I hadn't paid much attention to it until
recently; that is, now that I know I have to use an SOIC package device in
the final product design.

I see in-circuit programming to be very advantageous, since it will allow us
to load a routine for hardware verification during manufacturing test, and
then re-program the 16LC84 with the operating code ... all without
disturbing the hardware.

Trouble is I can't find anything in my MPLAB or Picstart PLus manuals (or
the Microchip CD) about considerations for in-circuit programming: neither
how one should size the isolating resistors shown on page 52, nor the
availablilty of a commercial serial programmer.  Is it one of those things
that's "left as an exercise for the reader", or is there a product already
available to do the job?

Because of time constraints, I'd rather buy than build one, but building is
still do-able.  Perhaps it's nothing more than building a driver/buffer
stage between my Picstart and the application circuit?  Does anyone out
there have any good pointers for in-cicuit programming?

Many thanks,
... Gregg