Hi folks,


I've been workoing on a stepper motor project.  The challenge is to take it
a little ... ah.. STEP  into the microstep domain by doing two-bit current
control.  (Using a TEA3718 gives three steps of current and one OFF, which
is a little like microstepping current levels.)   I can get about 1/6th step
out of this thing, so far so good.


But I notice that I can't step SLOWLY.  If I have too long a wait between
steps, the motor just sits there and sings.  (Stepper motors can make a lot
of noise.)   Any ideas why ya can't go slow with these things?


-- Lawrence Lile