Controlling NEMA 17 through RAMPS without firmware

Robin2:

Saturisk:
Is there a decent tutorial of PWM outputs that I am missing?

I dealt with that in Reply #4 also.

All you are missing is the knowledge that you don't need to bother about PWM.

...R

Oh my gosh! I completely didn't see that post apparently. I'm terrible sorry. Thank you for explaining that to me.

All you need is a sequence of short pulses (around 10 microsecs is probably enough) spaced at timed intervals to control the speed at which the steps happen.

So I can understand the pulses portion of it, however, how do I figure how long or fast the motor will run from that?