基于CPLD的可调频波形发生器的设计

该波形发生器是以CPLD(复杂可编程逻辑控制器)为核心部件,辅以输入控制、D/A转换及数码显示等模块,利用VHDL语言在MaxplusⅡ软件中完成设计,可以输出递增斜波、递减斜波、三角波、阶梯波、正弦波及方波等6种波形信号。文中介绍了在CPLD上产生上述信号的基本原理,并对该波形发生器与传统波形发生器的优缺点进行了分析。

Implementation of a Frequency Adjustable Waveform Generator Based on CPLD

Using Complex Programmable Logic Device(CPLD) as its key component,and aided by a input control module,a D/A transformation module and a digital displaying module,this signal generator can output increasingly slopped wave,decreasing wave,triangular wave,ladder wave,sinusoidal wave and square wave.This article introduces the basic principle of outputting a signal from a CPLD,and analyses the advantages and disadvantages of this generator and other traditional signal generators.