摘要
本文叙述了普通单片机通过外扩高速计数器，大大提高系统定时器／计数器的计数脉冲速率，实现高精度、高分辨率的信号频率及周期的测量方法，并给出了应用实例。该方法实现简便，具有很好的实用价值。
This paper describes a measurement method which is by increasing the counting of the pulse rate greatly through extending high speed counter outside of a general single chip microprocessor, accomplishes high accuracy and high resolving power measurement of signal's frequency and period, and provides practice examples. This method is easy to realize. It has high practice value.
出处
《陕西工学院学报》
1999年第2期13-16,共4页
Journal of Shaanxi Institute of Technology
关键词
精度
分辨率
频率测量
周期测量
单片机
high accuracy
high resolving power
frequency
period
measurement
