all of my tests were done with the lines floating. I did not have my circui=
t=20
connected, as I figured that it may introduce variables like that. DATH and=
=20
DATL were what I was using to attempt to drive it.

I will try finding an 18 pin DIP and see if that works. That should tell me=
=20
what part of the circuit the problem is at.

Thanks for the assistance. Anything else is appreciated, as always!

--Joe Jansen

On 9/8/05, Olin Lathrop <olin_piclist@embedinc.com> wrote:
>=20
> Joe Jansen wrote:
> > OK, status update:
> >
> > Everything seems to work except PGD. Data line is not switching at all.
> >
> > I will update more once I get a chance to go over the prints. Any
> > suggestions along the way are, of course, welcome.
>=20
> Do you mean that the programmer can't control PGD even when it's not
> connected, or that your circuit is loading PGD to the point that the
> programmer can no longer drive it?
>=20
> As a test, you can run TEST_PICPRG with the target disconnected from the
> programmer. The commands DATH and DATL should make PGD go high and low
> respectively. If they do when open but not when connected to your circuit=
,
> then your circuit is loading the line too much.
>=20
>=20
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