User manual

F1 LV Evaluation Platform Motor Control Add-ons
DS41629A-page 16  2012 Microchip Technology Inc.
FIGURE 1-2:

19
20
21
33 32
22 23 25 26 2724
28
29
31 30
19. BLDC flyback voltage blanking time.
20. BLDC dwell time at each start-up step.
21. BLDC milliseconds to remain in Open-Loop
mode at start-up before closing the loop.
22. BLDC minimum commutation time below
which a stall is detected.
23. BLDC error feedback multiplication factor.
Each shift divides error by 2.
24. Stepper motor steps in each drive phase
when microstepping is selected.
25. Button to invoke new microstep sinusoid
drive look-up table.
26. Peak drive level in microstep look-up table.
27. Stepper motor commutation mode selec-
tion.
28. Stepper motor maximum RPM commutation
rate when speed control is set at maximum.
29. Degrees per step physical attribute of the
attached motor.
30. Maximum drive voltage duty cycle applied
when speed control is at the maximum
RPM. This prevents excessive overdrive of
the motor.
31. Stepper motor drive voltage duty cycle
applied when speed control is at the lowest
run speed above stop.
32. Percent of speed control setting, relative to
maximum, below which the motor drive is
removed and the motor is stopped.
33. Percent of speed control setting, relative to
maximum, above which the motor starts
from a stopped state.