摘要
本文基于89C51单片机技术,介绍了一种数字式频率计数器,该频率计具有操作简单方便、响应速度快、体积小等一系列优点,可以及时准确地测量低频信号的频率。
Based on 89C51 microcontroller technology, the paper introduces a digital frequency counters, with the frequency of operation simple and convenient, fast response, small size and a series of advantages, which can be timely and accurate measurement of low-frequency signal frequency.
出处
《电脑与电信》
2008年第5期65-67,共3页
Computer & Telecommunication
