基于单片机的多功能数字频率计的设计  

Design of Multifunctional Digital Frequency Counter Based on MCU

作　　者：杨春兰[1] 薛大为[1] 

机构地区：[1]蚌埠学院电子与电气工程系,安徽蚌埠233030

出　　处：《怀化学院学报》2016年第5期64-67,共4页Journal of Huaihua University

基　　金：安徽省高等学校优秀青年人才基金项目(2012SQRL218);安徽省大学生创新创业训练计划项目(AH201411305071)

摘　　要：频率计在生活及生产领域的应用极其广泛.为了得到频率等参数的精确测量值,系统在简易频率计的基础上,采用AT89C52单片机作为主控芯片,能够测定三角波、矩形波、正弦波等多种波形信号的频率、周期、占空比以及脉宽,最终通过LCD液晶显示器显示测量的参数.着重介绍了硬件设计及软件编程,同时采取Proteus仿真,结果显示仿真运行良好,可测量三角波、正弦波等多种波形的频率等多种参量.The counter is widely used in the life and production. To obtain the accurate measurement of the frequency and other parameters,the system uses AT89C52 as the main control chip to measure the cycle,frequency,duty ratio and pulse width of triangle wave,square wave,sine wave and other waveform signal,and the measurement parameters can be displayed through the LCD liquid crystal. The paper introduces in detail the hardware design and software programming,and simulates by Proteus software. Simulation results indicates that the system runs well and can use practically to measure triangle wave,square wave and other waveform signal.

关 键 词：频率计 AT89C52 整形 PROTEUS仿真 

分 类 号：TP272[自动化与计算机技术—检测技术与自动化装置]