> We have just finished a project using the 16LF84 and we are now in a position
to sell it
> through our international distributors. The problem is that there may be a nee
d to change
> the firmware in the 16LF84 (I hope not), if we discover some bug. The chip can
 be
> programmed in circuit, however I don't want them to have to use MPLAB to repro
gram
> the PIC.
>
> I am looking for a simple program to program a given PIC chip from a HEX file
that uses
> a config file instead of being configured on line - just one more thing to mes
s up. Also a
> simple programmer that we can fabricate here and ship to them to simplify the
operation
> even more.

I've written a DOS command line HEX programmer for the 16F84/16C84, that
could be easily modified to accept a config file. It works with the
COM84 serial port programmer, which is probably the simplest programmer
you can build. However, I gather that COM84 is not a "production
quality" programmer, and, furthermore, won't work on some machines with
serial ports that aren't capable of delivering sufficient current. It's
always worked for me though. Bearing all this in mind, if you're
interested, email me for the source. Usual disclaimers apply :)

Cheers,

Ben