基于ARM的音乐播放器的设计与实现VIP专享VIP免费

本科生毕业设计（论文）摘要多媒体技术融计算机、声音、文本、图像、动画、视频和通信等多种功能于一体，是当今信息技术领域发展最快、最活跃的技术，是新一代电子技术发展和竞争的焦点。嵌入式设备与多媒体技术的融合使得PDA，智能手机，平板等智能终端得到快速发展。未来，智能终端与物联网的结合将推动嵌入式设备快速发展。所以，基于嵌入式终端的应用前景广阔。设计目的是在嵌入式平台上开发一款基于开源Linux操作系统的多媒体播放器，它以mplayer作为核心播放程序，将支持更多的文件播放格式甚至可以与PC机上的媒体播放器相媲美。多媒体播放器的硬件部分：以S3C2440开发板为硬件平台，它的外围设备可以外插U盘作为存储器、TFT-LCD触屏、key23键盘，以及外接耳机作音频设备。因为播放器开发是基于成熟的硬件平台，主要工作集中在软件部分，主要包括：搭建开发环境，配置编译mplayer可执行程序，编写触屏驱动，及key23驱动，编写主控程序等等，最后将程序移植安装到开发板，完成基于Linux的嵌入式播放器的设计。经过测试，播放器符合设计要求。关键词：触屏，移植，线程，嵌入式I本科生毕业设计（论文）AbstractThemultimediatechnologyinvolvessound,text,image,animation,videoandcommunicationsandotherfunctions.Informationtechnologyisoneoffastestgrowingtechnologies.Obviously,itisanewgenerationofelectronictechnologydevelopmentandthefocusofcompetition.TheintegrationofembeddedequipmentandmultimediatechnologycontributesarapiddevelopmentforPDA,smartphones,slabintelligentterminal.Inthefuture,intelligentterminalwillpromotethenetworkembeddedequipmentrapiddevelopment.So,theapplicationthatbasedonembeddedterminalhasabrightfuture.ThepurposeofthisdesignistodesignmultimediaplayeronanembeddedplatformbyusingtheopensourceinLinuxoperatingsystem.Itistakemplayerascorebroadcastprogram,whichwillsupportmorefileformat,andevenismorecomparablewiththePCmediaplayers.ThehardwarepartofMultimediaplayertakesS3C2440developmentboardforthehardwareplatform,whichusetheUSBdisk,tft-lcdtouchscreen,key23keyboard,andexternalearphoneforaudioequipment.Becausetheplayerdevelopmentisbasedonmaturehardwareplatform,themainworkfocusedonsoftwarepart,whichmainincludestheseworks,suchasthedevelopmentenvironmentsetup,thecompiledconfigurationofmplayer,thedriveoftouchscreenandkey23,andtheprogramofmastercontrol,etc.Finally,thedevelopedprogramcanbeinstalledtodevelopmentboardbasedontheLinux.Aftertesting,playercanmeetthedesignrequirements.Keywords:touchscreen;transplant;thread;embedded;II本科生毕业设计（论文）目录第1章绪论.............................................................................................................11.1选题背景.....................................................................................................11.2研究意义.....................................................................................................2第2章需求分析与方案制定.................................................................................42.1功能性分析.................................................................................................42.2可行性分析.................................................................................................42.3设计的主要目标任务.................................................................................52.4系统方案制定.............................................................................................52.5本章小结.....................................................................................................5第3章系统功能模块介绍........