多功能信号发生器的设计与实现.doc

题目多功能信号发生器的设计与实现学生姓名王振华学号 1 213014069 所在学院物理与电信工程学院专业班级电子信息工程指导教师梁芳完成地点物理与电信工程学院实验室 201 6年6月2日 I 多功能信号发生器的设计与实现王振华( 陕西理工学院物理与电信工程学院电子信息工程专业,201 2级3 班,陕西汉中 72300 0) 指导教师: 梁芳[ 摘要] 本文介绍的是利用 STC12C5A60S2 单片机和数模转换器件 DAC0832 产生所需不同信号的低频信号源,其信号幅度和频率都是可以按要求控制的。文中简要介绍了 DAC083 2数模转换器的结构原理和使用方法, STC12C5A60S 2 的基础理论,以及与设计电路有关的各种芯片。着重介绍了如何利用单片机控制 D/A 转换器产生上述信号的硬件电路和软件编程。信号频率幅度也按要求可调。本设计核心任务是:以 STC12C5A60S2 为核心,结合 D/A 转换器和 DAC0832 等器件,用仿真软件设计硬件电路,用 C语言编写驱动程序,以实现程序控制产生正弦波、三角波、方波、三种常用低频信号。可以通过键盘选择波形和输入任意频率值。[ 关键词] 单片机; LCD1602 ;信号发生器; DAC0832 II Design and implementation of multi function signal generator Author: Zhenhua Wang ( Grade 12 ,Class 03 ,Major in Electronics & Information engineering ,Physics & munications engineering Dept., Shaanxi University of Technology,Hanzhong 72300 0 ,Shaanxi ) Tutor: Fang Liang Abstract: This article describes the STC12C5A60S2 microcontroller and digital to analog converter DAC0832 to produce the desired signal of the low frequency signal source, the signal amplitude and frequency can be controlled as required. The article briefly describes the structure of principles and use of the DAC0832 digital-to-analog converter, the STC12C5A60S2 basic theory and design of circuits a variety of chips. The paper focuses on how to use microcontroller to control the D/A converter to produce the hardware and software programming of the above signals. The signal frequency range is also adjustable as core of the design tasks are: STC12C5A60S2 as the D/A converter and DAC0832 devices, circuit simulation software, design hardware drivers written in C, in order to achieve process control to produce sine wave, triangle wave, square wave, monly used low-frequency signals. Waveforms and enter any frequency value can be selected via the keyboard. Key Words : on STC12C5A60S2 function waveform generator DAC0832 square wave, triangle wave, sine wave ,sawtooth wave 陕西理工学院毕业设计 III 目录 1引言.............................................................................