按键控制蜂鸣器播放多段音乐的设计论文.docx

《单片机原理及应用》课程设计基于按键控制蜂鸣器播放多段音乐的设计姓 名： X XX任课教师: XX院 系：XXX专 业：电子信息工程 提交日期：2012年6月25日 基于按键控制蜂鸣器播放多段音乐的设计引言这学期我们学习了单片机原理及接口技术这一门实用而又生动的课程，初次接触到它就被它丰富的内容所吸引。单片机自20世纪70年代问世以来，已得到了十分广泛的应用。随着单片机 的集成度越来越高以及单片机系统的广泛应用，对软件编程的要求也越来越高，要求编程人员在短时间内编写出执行效率高、运行可靠的程序代码。单片机具有一些突出的有点：体积小、重量轻、耗电少、电源单一、功能强、价格低、运行速度较快、抗干扰能力强、可行性高，所以在如今的绝大数的领域中都能够看到单片机的身影。本次设计是基于AT89C51芯片的电路为基础，外加上三极管的放大、放音设备蜂鸣器，以此来实现音乐硬件控制器的硬件电路，通过软件程序来控制单片机内部的定时器使其播放出优美的音乐。此次设计共写进了三首歌曲程序，分别是《仙剑》、《月亮代表我的心》和《小星星》。关键字：单片机 蜂鸣器 AT89C51芯片 音乐Based on the button control play more paragraphs music of the buzzer designInstructionThis term we have learnt the digital image processing which is a practical and vivid course, First contact to it, I was attractive by its rich content.Since the 1970 s, the single chip microcomputer appeared has been a wide range of applications. With the integration of single chip more and more high and the wide application of single-chip microcomputer system, the software programming requirement also more and more high, requesting programming staff in a short time, writing executive high efficiency and reliable operation program code. SCM has some prominent a bit: small volume, light weight, less consumption, and the power of a single, the function is strong, price low, the process is fast and strong anti-interference ability, feasibility is high, so in most of the number now in your field you can see the figure of single chip microcomputer.This design is based on AT89C51 chips based circuit,and the transistor amplifier and let the sound equipment, so as to realize music hardware hardware circuit, through the software program to control of the single chip microcomputer timer internal plays beautiful music.The design of three songs werewritten into the program, it is respectively xianjian, the moon represents my heart, little star.Keywords:Single-chip microcomputer,buzzer,AT89C51chip,music目 录第一章 绪论11.1课程设计目的11.2课程设计任务11.3课程设计的意义1第二章 设计原理22.1 设计原理22.1.1 基本原理简述22.1.2 关于音乐的原理知识概况2第三章 ATMEL 89C5