摘要
本系统针对设计制作简易多功能计数器能接收函数信号发生器产生的信号,实现周期测量、频率测量和时间间隔测量的功能的要求。通过分频和整形,利用C8051F020的可编程计数器阵列(PCA)的边沿捕捉模式对信号的上升沿捕捉并计时,从而达到对频率、周期和时间间隔测量的目的,并能使测量的范围和测量精度达到预期的要求,还能实现显示温度、时间和记忆10个测量过的历史数据、显示峰值等扩展需求。
This system is designed as a facility multifunctional arithmometer that can receive the signal coming from the function signal producer and fulfill the request of the measure to cycle, frequency and time interval .After being disported the frequency and plasticed ,the system can time the change of the signal＇s ascending side by PCA to measure the cycle, frequency and time interval. The system can make the range and the precision of the measure fulfill the request of the subject, and it can display the temperature, time ,memory 10 measured data and peak value showing.
出处
《微计算机信息》
2009年第23期76-77,80,共3页
Control & Automation
关键词
PCA
整形
分频
PCA
plastic
frequency division
