针对低频频率量，介绍了利用单片机的片内定时器，采用测周法实现频率量采集的方法。

This paper introduces the way of measuring the cycle of frequency by making use of timer in the single-chip microcomputer to collect the parameters of frequency.

youdao

针对低频频率量，介绍了利用单片机的片内定时器，采用测周法实现频率量采集的方法。

This paper introduces the way of measuring the cycle of frequency by making use of timer in the single-chip microcomputer to collect the parameters of frequency.

youdao