打算用ecap的脉冲检测功能测量电压频率,将电压由正弦波转换成方波之后,由于电压存在谐波,脉冲波形存在一点瑕疵,如下图所示,
看似波形很工整,其实在上升沿和下降沿都有波动,所以导致cap的捕捉时间点不准确,请问这个问题可有什么较好的解决方法
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