毕业设计(论文)-基于AT89C51单片机的语音播报器的设计

摘要现代社会人们工作日程繁多紧凑，随着生活节奏的加快，合理的安排时间和遵守时间是每个人的愿望，本文介绍的智能记事器，采用语音播报，随着语音芯片的普及，语音报播被广泛应用于车站报站器，语音型数字万用表，出租车语音报站器，排队机等。可快速直观的给人们提醒工作日程，将成为人们生活中的有力助手。本文提出了基于AT89C51单片机的语音播报器的设计方案。方案以单片机作为系统的控制核心，详细介绍了ISD公司生产的ISD2560语音芯片的优点及其使用方法。并且给出了用AT89C51与ISD2560构成的语音系统的硬件原图和软件设计方法。采用ISD单片语音录音/放音集成电路系列中的ISD2560实现了语音的存储和播放，使语音音质自然真实。ISD2560不需要A/D和D/A转换，并且集成度高，能实现复杂的信息处理功能，真实的再现语音。实现了当按下开始键，启动录音，松开开始键，结束录音。结束录音后，循环播放所录音的基本功能。并且录放系统具有电路简明、应用方便、单片录放、不怕掉电、音色纯正、性价比高等特性。关键词电气信息；单片机；语音芯片；ISD2560AbstractModernsocialcompactmanypeopleworkschedule,withthepaceoflifespeedsup,reasonablearrangementstocomplywiththetimeandthetimeiseveryone'saspirations.Thispaperintroducestheintelligentaccountsregulator,withspeechbroadcast,withthepopularizationofpronunciationchip,voicenewspaperhasbeenwidelyusedinthestationbroadcaststopsdevice,voicetypedigitalmultimeter,taxivoicestopsPaiDuiJiware,etc.Thepaperintroducedasmartnotepad,avoicebroadcast,fastintuitivetoremindpeopleworkschedule,peoplelivinginastrongassistant.InthispaperadesignprogramofvoicebroadcastdevicebasedonAT89C51microcontrollerisintroducedinthispaper.Single-chipmicrocomputeristhecoreofcontrolsystem.ThispaperintroducesthePINfunction,operatingmodelandusingmethodofISD2560voicechip.PuttingforwordthehardstructureandsoftdesignmethodofthevoicesystemconsistedofAT89C51andISD2560.Theuseofsingle-chipvoicerecordingISD/playbackICISD2560seriesachievevoicestorageandplayback,andthevoiceistrue,natural,quality.Weachievethebasicfunctionthatwhenthestartbuttonispressed,thedevicestarttorecordandwhenthestartbuttonisreleasd,thedevicefinishrecording.Thenbroadcastwhatitrecordloopthreetimes.Andrecordingsystemhascircuitconciseandeasyapplication,monolithicrecording,notafraidoffelectricity,tone,pure,highperformance-to-pricecharacteristics.KeywordsElectricalInformation；single-chip；voicechip；ISD2560I目录1绪论.................................................................................................................................11.1本课题的目的与意义........................................................................................11.2本课题在国内外研究概况及存在问题...........................................................11.3本课题研究内容................................................................................................21.4本设计的主要任务要求....................................................................................32系统设计方案................................................................................................................42.1总体设计方案.....................................................................................................42.2语音芯片的选择................................................................................................43硬件电路设计................................................................................................................63.1protel99se介绍.................................................................................................63.2电源电路设计.....................................................................................................73.3主机电路设计.....................................................................................................73.3.1AT89S51的特点....................................................................................73.3.2AT89S51的引脚介绍............................................................................83.3.3时钟电路...............................................................................................103.4语音芯片ISD2560及应用.............................................................................103.4.1语音芯片ISD2560简介......................................................................103.4.2ISD2560引脚功能及内部结构..........................................................113.4.3ISD2560的语音播放电路...................................................................134软件设计.......................................................................................................................174.1AT89C51单片机定时器/控制器控制..........................................................174.1.1工作模式寄存器TOMD.....................................................................174.1.2控制寄存器TCON...............................................................................184.2ISD2560录放音软件设计..............................................................................184.2.1ISD2560操作模式...............................................................................194.2.2分段录放音...........................................................................................194.3keilC51介绍及其程序说明...........................................................................244.3.1keilC51介绍..........................................................................................24II5结论.............................................................................................................................26致谢.............................................................................................................................27附录........................................................................