200 steps per revolution, unless you are using mirostepping.
with microstepping, multiply your MSx by the number of steps per revolution/360
so 1.8deg step motor is 200 steps rev.
with 4x microstepping, for isntance, that is 800 pulses to rotate the motor 360degress.
with 8x MS ts 1600 pulses per rev.
SO. to go 200RPM with this setup and 4x MS would take 800x200 = 16000 pulses
if i recall, these are in the axis setup screens in turbocnc
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