Re: [CAD_CAM_EDM_DRO] parallel port

Trend wrote:

> I think i fubared by parallel port with my* new electronic wiring.
>
> I get 5v (actually 4.97)out of pins 2-9 (that is all I have tested) by
> default. I am suppose to get ~0v out of it by default, right?
> (By default I mean, after my computer boots into windows), I am testing this
> by hooking up a voltage meter to pin 2 through 9 and one of the ground
> points.

Many of the pins are 'inverted' - that is you load '1' they read '0'.
Pins high is the default state after a reboot, 0 internally.

> I am using XP.

As others have said - you need an interface library. Another one is
Direct-IO - www.direct-io.com - Which will allow a lot of old software
that talks directly to the ports to work on NT, W2k and XP, without
having to modify the old programs!

--
Lester Caine
-----------------------------
L.S.Caine Electronic Services