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ID:11387246
大小:360.00 KB
页数:36页
时间:2018-07-11
《基于单片机的音乐盒》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、目录摘要···································································ⅡAbstract······························································Ⅱ1绪论························································11.1历史背景··················································11.2目的意义····
2、··············································11.3主要问题··················································11.4技术要求··················································12设计方案简述···············································22.1设计功能要求·············································
3、·22.2总体设计原理··············································22.3总体设计框图··············································23详细设计····················································33.1芯片的选择与介绍··········································33.1.1主要性能参数···································
4、·········33.1.2引脚功能说明············································33.2最小单片机系统············································53.3键盘部分··················································63.4扬声器部分················································63.5显示部分·····························
5、·····················63.6硬件部分··················································63.7流程图····················································74设计结果与分析··············································85总结························································9参考文献··············
6、·······································10附录一元器件清单············································11附录二电路图················································12附录三程序代码··············································13摘要为了实现单片机控制音乐播放,此次课程设计做出了尝试,即电子音乐盒的设计。本设计采用了扬声器发声来实现歌曲的播放,能保持基本音调不
7、变,流畅播放出歌曲。现选用STC89C52单片机。用KeilC51编程软件编程,用PROTEUS单片机仿真软件仿真。利用I/O口产生一定频率的方波,驱动蜂鸣器,发出不同的音调,从而演奏乐曲。通过单片机P1口控制,实现功能键盘控制;功能键盘采用按键开关,通过单片机P2口控制,实现歌曲播放顺序的调换和暂停播放功能;扬声器由单片机的P3口控制,实现歌曲播放;主要工作过程是通过按下功能键实现上一首和下一首及暂停播放,同时有液晶屏显示当前播放歌曲的序号,扬声器播放出音乐。关键词:STC89C52单片机;方波;音调AbstractInordertoa
8、chievesingle-chipmicrocomputertocontrolmusicplayer,Imadetheprojecttotry,thatis,thedesignofelectr
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