On Tue, May 14, 2002 at 09:07:29AM -0700, Jim wrote:
> Well after pulling my hair out for a while I found that my parallel port put
> out 3v for a high is this normal.

Yup. The parallel port is TTL which means that a high only needs to be
above 2V. The PIC needs 0.8Vdd for a high, which usually is 4V.

> I'v been looking around the web at parallel port spec's nad didn't find
> anything about voltages on the
> parallel port so I am assuming that it's suppost to be 5v for a high.

Nope. 2V is all that is guaranteed for a high.

> Can
> anyone tell me if 3v is correct
> for a high?.

Yes. Many parallel port will output 3.3V for a high.

BAJ

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
email listserv@mitvma.mit.edu with SET PICList DIGEST in the body