Well, I got the motor today and tried to hook up the circuits to make it work. But, I couldn't get the encoder to produce any response. There are both +5 V and +6 V battery connections. I connected both to +5 V. Maybe that is the problem, it may need a real +6 V supply. I think I am providing a valid differential signal on REQ and REQ/, and am looking on SD. I see that SD is +3 V and SD/ is at ground, but they never change.
So, do Uli or TC429 have any suggestions on power connections, signal characteristics, power sequencing or anything else that might be keeping this from working?
Thanks,
Jon