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编号：毕业设计说明书(论文)课题：便携式音乐播放器设计学院：电子工程与自动化学院专业：电子信息科学与技术学生姓名：学号：指导教师：职称：高级研究员题目类型：理论研究实验研究√工程设计工程技术研究软件开发2013年4月20日摘要摘要随着电子行业的迅猛发展,人们对消费类电子产品的需求越来越高,多功能便携式MP3也越来越受大众的青睐。根据消费者的爱好需求，各种多功能的MP3层出不穷，其尽可能的吸收照相机、手机等电子产品的其它功能。本次系统设计采用ARMCortex-M3内核的STM32F103VET6作为微控制器、SD卡作为存储介质、VS1003作为音频解码芯片以及TFT彩晶屏作为人际交互设备，设计一款可播放mp3、wav文件格式的便携式音乐播放器，并实现相关功能。本次设计的重点是了解FAT文件系统的构造、SD卡的读取、VS1003芯片的解码过程、人机交互设备的控制操作以及各主从机之间的通讯方式。其中，STM32F103系列集成了低功耗、IO资源多、通信接口多、体积小、价格适中等多项优点；随着日本松下、东芝及美国SanDisk公司于1999年8月共同研制，SD卡被广泛应用与闪存介质，并易于读取；VS1003是一个多功能的mp3、wav解码芯片，自带DAC，具有无相位差的立体声输出；TFT显示屏集成了触控特点使得人机交互更为简便、程序编写更为简洁。关键字：STM32F103VET6;SD卡;VS1003解码芯片；TFT彩晶屏；便携式音乐播放器。摘要AbstractWiththerapiddevelopmentoftheelectronicsindustry.Theconsumerelectronicproductshavebeenusedmoreoftenbypeoplebecauseoftheirgrowingdemand.It’spopulartohaveaMulti-functionportableMP3forpeoplewiththeincreasinglyfavoredbythepublic.Avarietyofmulti-functionMP3afteranotheraccordingtothedemandofconsumer.Theywereproducedwithabsorbtheotherfeaturesofthecameras,cellphonesandotherelectronicproductsasmuchaspossible.ThesystemusedtheARMCortex-M3coreSTM32F103VET6asmicrocontroller,SDcardasthestoragemedium,VS1003ashumaninteractionastheaudiodecoderchip,andTFTdisplayscreenequipmenttomakeaPortableMusicPlayerwiththefunctionthatcouldplaywavandmp3filesinthisdesign,andsomerelatedfunctions.ThedifficultylieindesignisfocusedonunderstandingthestructureoftheFATfilesystem,howtoreadSDcard,theprocessofdecodinginVS103chip,thecontrolofhuman-computerinteractionandthecommunicationbymasterandslave.Amongofthesedevices,STM32F103seriesintegratesalow-power,IOresources,communicationinterface,smallsize,affordableandmanyotheradvantages.Panasonic,Toshiba,SanDiskCorporationandtheUnitedStatesdeveloptogetherinAugust1999.SDcardsarewidelyapplicationandflashmedia,andeasytoread.VS1003isamp3,wavdecoderchipwithmanyfunction,built-inDACandstereooutputwithnophasedifference.TFTasadisplaymakethehuman-computerinteractioneasierandprogrammingmoreconcisebyintegratingtouchfeatures.Keywords:STM32F103VET6;SDcard;VS1003decoderchip;TFTdisplayscreen;PortableMusicPlayer目录目录引言.....................................................................................................................................................................11设计任务与思路.................................................................................................................................21.1设计任务................................................................................................................................................21.2设计思路................................................................................................................................................22器件选择和系统框图......................................................................................................................22.1器件选择................................................................................................................................................22.2系统框图与概述..................................................................................................................................23硬件电路设计.......................................................................................................................................33.1电源模块................................................................................................................................................33.2微控制器模块.......................................................................................................................................43.3SD卡模块...............................................................................................................................................53.4音频解码模块.......................................................................................................................................63.5音频放大模块.......................................................................................................................................73.6彩晶显示模块.......................................................................................................................................83.7复位模块................................................................................................................................................94FAT文件系统........................................................................................................................................94.1FAT文件系统简介..............................................................................................................................94.2FAT文件系统的读取操作..............................................................................................................115系统软件设计.....................................................................................................................................145.1STM32程序调试.................................................................................................................................145.1.1STM32启动简析..................