基于单片机的SD卡录音笔设计与实现摘要本文介绍的是基于单片机的SD卡录音笔的设计与实现。首先介绍了SD卡和SPCE061A的技术应用，发展趋势和研究意义；然后深入分析了单片机录音笔的基本原理，同时全面介绍了实现基于单片机的SD卡录音笔所需要的硬件和软件；接下来是详细介绍了实现基于单片机的SD卡录音笔的硬件电路设计以及软件结构设计；最后对整个系统的性能进行测试和分析。整个系统分为硬件设计和软件设计两大模块。硬件部分由凌阳公司的SPCE061A单片机，扬声器，电池组等构成；软件环境选择的是与硬件配套的u’nspIDE2.0.0。本系统能够实现对声音的多段录音、放音、删除等功能。关键词：μ’nSPIDE，SPCE061A，SD卡，录音笔Microcontroller-basedSDCardRecorderDesignAbstractThisarticleisbasedontheSDCardRecorderMCUDesignandImplementation.FirstintroducedtheSDcardandSPCE061Aoftechnology,trendsandresearchsignificance;thenanalyzedindepththebasicprinciplesofsinglechipvoicerecorder,whileachievingacomprehensiveintroductiontomicrocontroller-basedSDCardRecordernecessaryhardwareandsoftware;followedbyimplementationdetailsofthemicrocontroller-basedSDCardRecorderhardwarecircuitdesignandsoftwarearchitecturedesign;Finally,overallsystemperformancetestingandanalysis.Thewholesystemisdividedintotwomajorhardwareandsoftwaredesignmodule.HardwareusedbythemicrocontrollercontrolchipSunplus'sSPCE061Adevelopmentboard,speaker,batterypack;softwareenvironmentandhardwarechoicesaresupportingu'nspIDE2.0.0.Thesystemcanrealizethemultisoundrecording,playback,deleteandsoon.Keyword:μ’nSPIDE,SPCE061A,SDCard,RecorderPAGEIII目录TOC\o"1-3"\h\z\uHYPERLINK\l_Toc214061绪论PAGEREF_Toc214061HYPERLINK\l_Toc280201.1SD卡录音笔概论PAGEREF_Toc280201HYPERLINK\l_Toc191991.2录音器的发展历史PAGEREF_Toc191993HYPERLINK\l_Toc262181.2.1留声机PAGEREF_Toc262183HYPERLINK\l_Toc62581.2.2钢丝录音和磁带PAGEREF_Toc62583HYPERLINK\l_Toc215551.2.3数码录音笔PAGEREF_Toc215554HYPERLINK\l_Toc203111.3SD卡录音笔的发展趋势PAGEREF_Toc203115HYPERLINK\l_Toc99561.3.1提高录音质量PAGEREF_Toc99565HYPERLINK\l_Toc22391.3.2多功能于一身PAGEREF_Toc22395HYPERLINK\l_Toc80261.3.3降低成本减小体积PAGEREF_Toc80265HYPERLINK\l_Toc15281.4基于单片机的SD卡录音笔研究意义PAGEREF_Toc15286HYPERLINK\l_Toc302072录音笔功能分析及开发环境PAGEREF_Toc302077HYPERLINK\l_Toc42732.1功能概述PAGEREF_Toc42737HYPERLINK\l_Toc156062.1.1SPCE061A对SD卡的读写功能