请问电机保存库函数的问题

[13531193294]

你好小助手，因为官网的电机驱动库函数是有四个电平口，但是普通电机驱动板不需要那么多电平端所以我改了库函数，但是发现不能驱动，小助手你看看这个库函数改的有问题吗

from pyb import Pin, Timer
inverse_left=False  #change it to True to inverse left wheel
inverse_right=False #change it to True to inverse right wheel

ain1 =  Pin('P0', Pin.OUT_PP)
bin1 =  Pin('P2', Pin.OUT_PP)
ain1.low()
bin1.low()

pwma = Pin('P7')
pwmb = Pin('P8')
tim = Timer(4, freq=1000)
ch1 = tim.channel(1, Timer.PWM, pin=pwma)
ch2 = tim.channel(2, Timer.PWM, pin=pwmb)
ch1.pulse_width_percent(0)
ch2.pulse_width_percent(0)

def run(left_speed, right_speed):
    if inverse_left==True:
        left_speed=(-left_speed)
    if inverse_right==True:
        right_speed=(-right_speed)

    if left_speed < 0:
        ain1.low()
    else:
        ain1.high()
    ch1.pulse_width_percent(abs(left_speed))

    if right_speed < 0:
        bin1.low()
    else:
        bin1.high()
    ch2.pulse_width_percent(abs(right_speed))

[yuan]

不清楚你什么电机驱动板，你需要照着真值表对照一下。