Originally Posted by JimmyC  I'm not using a breakout board, parallel cable comes directly from computer to board. It's an IBM desktop so I don't think there should be a problem with the signal being less than 5 volts. I'm going to try checking the step/direction pin out again however I am 99% sure it's correct. Thanks.
Edit: The parallel cable I'm using is 15' long, could there be an issue with signal loss over it? |
As the others have 15' is a lot. Maybee not for a printer but for a cnc it is. Many of the newer desktops have gone to low voltage parallel ports. Not sure about yours.
Remember, always use protection ie: a breakout board. Many of them will also eliminate low pport voltage problems.
Locking up and hissing is a good sign. You probably just need to get it configured in emc.