基于STM32的便携式音乐播放器设计.doc

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1、基于STM32的便携式音乐播放器设计毕业设计说明书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mp3wav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

2、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mp3wav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STM32F103VET6SD卡VS1003解码芯片TFT彩晶屏便携式音乐播放器AbstractWiththerapiddevelopmentoftheelect

3、ronicsindustryheconsumerelectronicproductshavebeenusedmoreoftenbypeoplebecauseoftheirgrowingdemandItspopulartohaveaMulti-functionportableMP3forpeoplewiththeincreasinglyfavoredbythepublicAvarietyofmulti-functionMP3afteranotheraccordingtothedemandofconsumerTheywereproduced

4、withabsorbtheotherfeaturesofthecamerascellphonesandotherelectronicproductsasmuchaspossibleThesystemusedtheARMCortex-M3coreSTM32F103VET6asmicrocontrollerSDcardasthestoragemediumVS1003ashumaninteractionastheaudiodecoderchipandTFTdisplayscreenequipmenttomakeaPortableMusicPl

5、ayerwiththefunctionthatcouldplaywavandmp3filesinthisdesignandsomerelatedfunctionsThedifficultylieindesignisfocusedonunderstandingthestructureoftheFATfilesystemhowtoreadSDcardtheprocessofdecodinginVS103chipthecontrolofhuman-computerinteractionandthecommunicationbymasteran

6、dslaveAmongofthesedevicesSTM32F103seriesintegratesalow-powerIOresourcescommunicationinterfacesmallsizeaffordableandmanyotheradvantagesPanasonicToshibaSanDiskCorporationandtheUnitedStatesdeveloptogetherinAugust1999SDcardsarewidelyapplicationandflashmediaandeasytoreadVS100

7、3isamp3wavdecoderchipwithmanyfunctionbuilt-inDACandstereooutputwithnophasedifferenceTFTasadisplaymakethehuman-computerinteractioneasierandprogrammingmoreconcisebyintegratingtouchfeaturesKeywordsSTM32F103VET6SDcardVS1003decoderchipTFTdisplayscreenPortableMusicPlayer目录引言11

8、设计任务与思路211设计任务212设计思路22器件选择和系统框图221器件选择222系统框图与概述23硬件电路设计431电源模块432微控制器模块533SD卡模块634音频解码模块735音频放大模块836彩