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EPWM的 CAU_TOGGLE 翻转问题



现在想把pwm配置成 比较点翻转, CAU_TOGGLE,但是每次运行时,翻转有时会因为PWM的初始的状态而高低电平全反过来,有时候正好差180度,请问有什么方法,可以让pwm运行时,都从低电平开始翻转呢,需要设置哪个寄存器呢?