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每个epwm模块有cmpA和cmpB。与计数器比较的话一个CMP就够了,为什么要有两个呢?

难道是epwmx的两个pwm输出口分别对应的是cmpA和cmpB。A输出口跟B输出口的比较值可以设成不一样。那A口跟B口的占空比就不一样。

要是A口跟B口要输出对称互补方波的话,那就将cmpA与cmpB的值设成一样????