I've been playing around whit the MACH3 software a bit, but when I went about hooking up a cable to my LPT1 port, I doesn't seem to get any sinals, either input nor output.
I haven't connected any machinery yet. was just trying to get a view of the pulsetrain on my scope.
The (working) scope just shows me zero volts on all pins, no matter what I do.
I then tried to set up some inputs in MACH3, but the indicators didn't light up no matter what I did.
I thought that even if the pins are "NC", the internal circuits in the LPT would pull the line to +5v and show up as "Active" when pulled to GND. That didn't work.
Also tried setting "Active low" to zero, but manually pulling the pin to +5v didn't change anything.
I'm starting to worry about the health of my LPT port.
Is there a way of testing the LPT port (wich I haven't used for years) whitout actually hooking up a printer of sorts (wich I don't even have)?
If my LPT port are really dead. Could I use one of these USB->LPT adaptors whit MACH3, or would that just make a big mess?