steppertest.py 文件源码

def __init__(self, fwdpin, revpin):
        GPIO.setmode(GPIO.BCM)
        GPIO.setup(dir_pin, GPIO.OUT)
        GPIO.setup(pulse_pin, GPIO.OUT)
        GPIO.setup(ms1_pin, GPIO.OUT)
        GPIO.setup(sleep_pin, GPIO.OUT)
        GPIO.setup(reset_pin, GPIO.OUT)

        GPIO.output(revpin, False)
        self.p1 = GPIO.PWM(fwdpin, self.pulse_freq)
        self.p2 = GPIO.PWM(revpin, self.pulse_freq)