I've just built a new stepper controller, about my tenth stepper or servo controller.

I was getting worried about the age of the computer running my mill, a computer that still has a couple of parallel ports in it.

Time to build something that uses a USB port, so if (when) the old Dell gives up the ghost, I'll be ready.

I used an STB5100 5 axis USB controller, the "blue" one. 

(I actually bought a POKeys 56U as well, but the configuration looks daunting and the physical implementation is .. troublesome.  So I thought I'd take the easy way out.)

The steppers work fine with the STB5100, so I know the basic communication is working.

But I'm unable to get the spindle control pins to do anything at all.  Neither the Enable, AVI nor PWM show anything except zero volts.

Configuration seems easy enough, which is to say, not many settings and most set to the default.

I see two options.  Maybe the board is just plain defective; not too hard to believe with something cheap from China.  Or maybe the default settings are not what's called for.

But randomly .. or sequentially .. trying combinations of ports and pins would drive me crazy.

Does anyone have any suggested settings for this board?

Thanks!