This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
前一段都好好的，今天抽筋了。然后用示波器一查，居然出现这种情况。
右边那个 1-> 是零电位指示点。
改变campA 的值，居然出现PWM电位有正有负的状况。我是新手。请大侠指导
搞清楚了，一个乌龙问题。示波器的耦合信号选成交流的了。
