is the index led supposed to blink on off all the time when the spindle is turning? i have it flashing on about 5-6 times , then going off, then randomly lighting. i have rpm readings from 100-3000 rpm. my spindle motor is driven by ab impact vfd, takes step pulse for speed. i can enter into the spindle speed 1345 and the spindle rpm is being read by the spindle sensor as 1345 +- 1rpm so i know that the spindle sensor is working properly. this is by 2 parralel ports, cnc4pc bboards, and cnc4pc index pulse board.
i have tried reinstalling the latest version , still the same. tried using smoothstepper, still the same. reason i am concerned the index is not working properly in mach, and have been having problems threading.