摘要
文中介绍了采用8253计数器的多周期同步测频方法,并通过软件设计对闸门时间自动调节,从而实现了宽范围的频率高精度快速测量。文中给出了实际硬件电路原理和编程方法。
In this paper, the frequency measurement method by multi-period synchronism with 8253 counter/timer is discussed,and High accuracy and fast frequency measurement in a wide range is achieved by programmed gate time auto-adjustment with this method. The principle illustration of practical circuit and programming method are revealed and discussed.
出处
《电子测量技术》
1998年第1期30-32,共3页
Electronic Measurement Technology
关键词
计数器
多周期同步测量
频率测量
8253C/T Multi-period Synchronism Measurement Gate Time Auto-adjustment
