******课程设计说明书题目: 基于单片机的音乐盒设计 院（部）： 专业班级： 学 号： 学生姓名： 指导老师： 年 月 日目录摘要········································································I绪论········································································11 概述······································································21.1课题意义·······························································21.2设计任务和要求·························································21.3总体设计·······························································21.4主要设计软件介绍·······················································3 1.4.1 PROTUES软件简介····················································3 1.4.2 KEIL软件简介·······················································32 硬件设计··································································5 2.1各部分硬件设计及其原理·················································52.1.1 AT89C51简介·······················································52.1.2 LED显示电路························································52.1.3时钟振荡电路·········································...
