At 01:07 PM 2/16/00 -0500, you wrote:

The DT001 uses open collector drivers to interface to the PIC and
resistors are used to provide the "high" if one of the resistors
is missing or not connected properly the programmer will not work
well. Your finger may be acting as a pull-up resistor when you put it
across the pins.

This is where I would start, look for proper connection of the
puill-up resistors. \

Jim

>I have built a 16f877 board from scratch with a 10-pin programming
>port that I connect to my dt001 programmer.  I have the PIC pins
>dedicated to the programing port, so there is nothing else connected.
>
>When I try to program the PIC, I get errors unless I hold my finger
>across the data and clock lines of the PIC.  The wire from the DT001
>through my board to the pic is about 8 inches.
>
>Anyone have any ideas what is going on here?  I have though about
>putting a large resistor across the pins to simulate my finger, but
>I have not found anyone else having to do that.
>
>
>thanks
>John Scott
>kd4vhg@radio.org
>
Regards,

Jim Robertson
NEWFOUND ELECTRONICS
________________________________________
Email: newfound@pipeline.com.au
http://www.new-elect.com
MPLAB compatible PIC programmers.
________________________________________