基于STC89C51单片机的简单函数信号发生器设计  

Design of simple function signal generator based on STC89C51 MCU

作　　者：任英杰 黄建清 郭凯 李亚军 REN Ying-jie;HUANG Jian-qing;GUO Kai;LI Ya-jun(College of Tropical Agriculture and Forestry,Hainan University,Danzhou 571737,China)

机构地区：[1]海南大学热带农林学院,海南儋州571737

出　　处：《电子设计工程》2018年第14期91-94,106,共5页Electronic Design Engineering

基　　金：海南省高等学校发展专项发展资金项目(HX51069008001)

摘　　要：研究设计了一款基于51单片机的函数信号发生器,包含发生器电路设计,软件设计以及联合仿真调试。通过键控的方法分别发生锯齿波、矩形波、正弦波、梯形波的波形以及调节发生波的周期和频率,相较于模拟函数信号发生器,能够直观方便且准确地调节波形和频率,是搭建数字信号发生器的基本模型。通过MDK keil编译环境和Proteus单片机仿真环境联合仿真。通过Altium Designer设计PCB印制电路图。得出输出信号的电压幅度能在一定范围内连续可调,频率稳定度高,频率可调在10 Hz^100 k Hz范围的结果。a function signal generator based on 51 single-chip microcomputer is researched and designed,including generator circuit design,software design and joint simulation debugging. Sawtooth wave,square wave,sine wave,trapezoidal wave waveform and modulating period and frequency wave respectively by keying method,compared to the simulation function signal generator,can conveniently and accurately adjust the waveform and frequency,is the basic model of digital signal generator. Through MDK keil compiler environment and Proteus MCU simulation environment Co simulation.Design of PCB printed circuit diagram by Altium Designer. The voltage amplitude of the output signal can be adjusted continuously in a certain range,the frequency stability is high,and the frequency can be adjusted in the range of 10 Hz^100 k Hz.

关 键 词：数字函数信号发生器 STC89C51 PROTEUS MDK KEIL 

分 类 号：TN606[电子电信—电路与系统]