This could be a stupid question but when you measure the voltage on your parallel port with your multimeter shouldn't you see the standard 0/5v signals or therebouts?
I'm just trying to test my L297/298 driver with a small motor.
I'm using the EZCNC controller software.
I can see the voltage fluctuate on the appropriate pins when I jog or command movement but it's really weird voltage levels like 178 mV.
The parallel port on this old computer could be shot for all I know. Or is it possible that these voltage levels are floating since there's no load?
Anybody see what I'm doing wrong.