> I posted a request for suggestions about which PIC16C84 programmer
> to build. I have already received a couple of mime encoded
> (LARGE) files. While I am thankful to those who take the trouble
> to send the files, I would appreciate a discussion of which
> setup is better than the other, and pointers to where they can
> be found! Otherwise, I will have to build all the programmers
> to see for myself if they work properly or not!

Have a look at:
http://www.labyrinth.net.au/~donmck

There is the free circuit and overlay of a Printer port driven
programmer based on the original design by David Tait. There are free
software drivers that include a disassembler, and support for the
following devices: 61,62,63,64,65,71,73,74,84,620,621, and 622.

This design was introduced in Feb 95 and has the advantage of using a
4PDT switch to allow a Program/Run mode for the 84, so it will program an
84 in circuit in around 2 to 10 seconds. About 250 have been built up on
a Printed circuit board I can supply, however I would think that many
more have been bread-boarded by home constructors.

Don...

Don McKenzie donmck@labyrinth.net.au
DonTronics Tullamarine, Australia
http://www.labyrinth.net.au/~donmck

Picosaurus-74. The 40 pin PICBasic with 8 channels of A-D, and real Uart.
PIC Basic Compiler. Programmers from $15 US, and Pic-Axe: A New Tool.