Quote Originally Posted by Wal View Post
Cheers Jonathan.

Hmm, so nothing connects to the PUL-/DIR- pins on the driver...?
They go to ground.

Quote Originally Posted by Wal View Post
>Make sure you set the step outputs in software to active low.

How can you be sure that this is the case? Would this not be entirely specific to what pulses my parallel port is sending..?
With this setup, when the parallel port output is low the output of the breakout board is 'open', so the driver pin will be pulled high. It's therefore inverted, hence the parallel port needs inverting to restore normality.