Kees van Bruggen wrote:
> I am trying to integrate David Tait's programmer in a PIC 16C/F84
> target system for my students. The problem are the programming lines.
> I have made a prototype of the programmer and the target system. When
> I want to program the PIC I have to disconnect the target from the
> programmer, because the target is interfering with the programming
> lines. Does someone know a good solution for this problem?
> Kees van Bruggen
> Horizon College Hoorn electronics department
> Netherlands

Try the schematic used for the DT001 programmer. It uses a 4PDT switch
as a load and go selector. http://www.dontronics.com/dt001.html

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