Hi,
many on-board Parallel ports don't reach full TTL-level. In most
cases adding pull-up-resistors (4.7 to 10k, connected to +5V) solves
the problem.

regards,
     Reelf

Ruben vd Merwe wrote:
> Hi Dave
>=20
> Which one from Tony Nixons are you looking at? I am interested in the
> Kit150. There is apparently now a version 2.
>=20
> I also had endless problems with the P16Pro. I even borrowed a friend's
> one that works, and have the same problem. I read some where it has to
> do with onboard Parallel ports. I have two machine's both with onboard
> ports and both don't work....
>=20
> Ruben
>=20
> -----Original Message-----
> From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behal=
f
> Of Dave King
> Sent: 22 September 2004 11:25 AM
> To: Microcontroller discussion list - Public.
> Subject: Re: [PIC]: P16Pro problems
>=20
>=20
>=20
>>Er, I don't think anyone answered your Qs.
>=20
>=20
> Yup I noticed I was just flooded with offers of help ;-]
>=20
>=20
>>The problem is NOT the P16PRO40. Its Microsoft. When you switched from
>>98SE to Win2K, Windows no longer allows control of the I/O pins.
>=20
> PICALLW
>=20
>>won't work on Win2K (never did for me).
>=20
>=20
> I tried it briefly on the 2K machine but between the 3.3vdc and having =
a
> weird
> permissions error I quickly gave up and have just been trying to get it
> to=20
> behave
> on the 98SE laptop.
>=20
>=20
>>I always use an old DOS166 for PICALL and P16PRO40. Still works fine,
>=20
> of=20
>=20
>>course.
>=20
>=20
> Well I am hoping I can get this P16Pro sorted out and stable again. It
> just=20
> programs too
> many pic and others to toss in the bin. I won a new unused Picstart Plu=
s
> on=20
> ebay this
> AM for the grand sum of $10 but that will be a few weeks before it gets=
=20
> here so I am thinking
> of getting one of Tony Nixons USB/serial programmers which looks like i=
t
>=20
> does everything
> the P16Pro did and more including the 10F's !!
>=20
> The real puzzling part is that I did not smell even a tiny wiff of smok=
e
> so=20
> I know I didn't
> let any out of anything ;-]
>=20
> Cheers
>=20
> Dave
>=20
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>=20
>=20
>=20
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>=20
>=20

--=20
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