外文翻译--ISD4004语音芯片在语音报站器中的应用.doc

ISD4004voicechipvoicestopinthebrowserapplicationAbstract:ISD4004voicechipseriesaretheUnitedStatesISDintroducedproducts,withmultiplerepeatplayback,storagetime,whenusedwithouttheexpansionofmemory,peripheralcircuitsrequiredforfeaturessuchaseasy.IntroducedinthevoicechipISD4004stopdeviceinapracticalapplication,andexplainsitsfunctionanduseofmethods,thusenablingreaderstovoicechipISD4004seriesusetohaveapreliminaryunderstanding.Keywords:ISD4004single-chipvoicestopbrowserISD4004voicechipISDarefromtheUnitedStateslaunchedthenewproducts.Onthevoicechippindescriptionoftheinternalcircuit,etc.,itiseasyintheISDchipinformationprovidedbythecompanyfound,Iwillnotdescribetoomuch,onlyabriefintroductiontoitscharacteristicsmakeone.Withordinaryrecording/playbackchipcompared,ISD4004hasthefollowingcharacteristics:First,therecorddoesnotsoundparagraphlength,andsoundrecordingsdonotneedA/Dconversionandcompression；Secondly,asafastflashstoragemedium,thatis,withoutpowersupplydatacanbestoredforupto100years,morethan10,000duplicaterecords；Inaddition,ISD4004hasrecordedalongtime(upto16minutes,thepaperusedforthe8-minuteISD4004voicechip)advantages；Finally,ISD4004hasrequiredthedevelopmentandapplicationofperipheralcircuitsoftheadvantagesofeasy,Thisisevidentfromtheintroductionofthisarticlereportedthatstationsinthevoicebrowsercanbeofpracticalapplicationexperience.SoundStation1hardwarecircuitdesignCurrentlyonthemarketstoptheflowofvoice,andmostlynotusedISD4004seriesofchips,whichwereintroducednotlongago,aswellasitshighprice-related.However,withthenumberofapplications,aswellasISD4004pricedrop,coupledwiththeISD4004seriesofchipshavingtheadvantage,itisbelievedthatthevoicebrowsertousestopISD4004seriesvoicechipsareentirelyfeasible.Idesignedthedeviceshardwarecircuit,andaBoarddebug,andachievedsatisfactoryresults.Figure1stophardwarecircuitconnectiondiagramThisarticlediscussesvoicestopdeviceisinstalledinthecarmeanstheplaybackcircuit,doesnotincludetherecordingcircuit.Inpracticalapplication,therecordingcircuitiscompletedstopthecontentsoftherecording,andrecordedcontentisstoredintothevoicechip.Inthispaper,combinedwiththeISD4004playbackcircuitISD4004introducetheuseofatypicalapplication.Thisarticlediscussesthebrowserstopmaincircuitmainlybysingle-chipmicrocomputer89C52andconstituteISD4004.Thissystemismainlydividedintothreeparts:single-chipcontroloftheplaybackpartanddisplaypart.DisplaycircuitusedbyP3.0,P3.1tocontrolthetwoparagraph7ofthestaticdigitaltubedisplay,andIshallnotdetail；controlpartconstitutedmainlybythe89C52single-chipthatcontainsthenecessarykeyscircuit,resetcircuitandperipheralcircuits,suchaswatchdogcircuit；playbackfromISD4004constitutesomeofthemajor,includingsupportingthePSAcircuit,poweramplifiercircuit.FromFigure1canbeseen89C52andfewerconnectionsbetweentheISD4004.MCUP1.0P1.3pinaccessbuttons,controldevicesstopthecourseoftheirworkwhetherornotreleasethecontentsoftoneplayback；P1.6accesstheISD4004chipselectpin/SS,controlwhetherISD4004strobe；ISD4004thenP1.7serialinputpinMOSI,readfromthepintotheaddressofplayback；P3.0andP3.1tocontroltheexternaldisplaycircuit,inanewspaper,thecourseoftheirworkstationdevicedisplaysthecurrentnumberofstations；P3.2andP3.3,respectively,thenISD4004-pinserialclockSCLKandinterruptpin/INT.ISD4004chipsneededtoconnectaudiosignalsareoutputpinsAUDOUT,thepinthroughafiltercapacitorconnectedwiththespeaker；AMCAPtoautomaticallymuteend,throughtheuseofonegroundedcapacitor.Inaddition,becauseoftheworkofISD4004voltage3V,whilethesingle-chipsupplyvoltagerequiredforthe5V,thereforebenecessarytoadopt3VvoltagetransformercircuitforuseISD4004.2SoftwareDesignElectriccircuits,thefirsttocompletetheinitializationprocedure,andthenquerythestatusbuttontoentersystemstandbymode.Ifyouhavepressthebutton,thenturntotheimplementationofthekeypointtotheworkprocedures.Keysincludingtheplaybackbuttonandstopbutton,plus1key,minusonekeyandspecialkeywords.Inthestandbymode,iftheplaybackbuttonispressedthefirsttime,theprogramwillbethefirsttojudgeareorgobackto(thegeneralpathofthebusarenotonlygofurtherback),andthecorrespondingindicatorlightautomaticallyreadoutthefirststopplaybackofthecontent,StationNo.1show.Ifitisnotthefirstpress,thenthefirststationtodeterminethecurrentnumber,andthestationnumberisbasedonaccesstostoredcontentplaybackatthestationandthefirstaddress；thencallsubroutineplayback,readaccesstothesiteinfrontofthecontentsofthefirstplaybackAddresstobeginplayback.Eachsentenceafterplayback,ISD4004interruptpin(25feet)willbeautomaticallysenttoonelow-levelsignals.Inhardwaredesign,thepinandtheMCUP3.3connection,sowillcauseaninterruptionintheinterruptionsubroutine,thereisadisruptionRecordthenumberofcounters,whichdeterminewhentheendofthecurrentStation1,StationPlustogetherRefreshdisplay.Addonebuttonpress,theproceduresforthenextshiftplaybackcontent；minusonekeypress,aftertheprocessisturnedonplaybackthecontentofonestation,thecorrespondingstationnumberdisplaywillalsorefresh；speciallanguagekeypressaftertheproceduretotheimplementationofthespeciallanguageplayback(forexample,turningPleasenoteandotherstatements)；stopkeypress,wouldsuspendthecurrentplaybackstatus.ISD4004inordertofacilitatethereadersunderstandingoftheapplication,thispapersomeoftheprocedures.Partoftheproceduretocompletethemainplaybackoperation,togettheaddressofthecontentplaybacktotheISD4004,thecompletionofplayback.PLAYACALLPOWERUPsACALLDELAY25fNolaterthan25msCLRP1.64MOVPLAY2YMOVA8ACALLSENDinecalltosendtheaddressMOVAtACALLSENDISD4004语音芯片在语音报站器中的应用摘要：语音系列芯片是美国公司推出的产品，具有可多次重复录放、存储时间长、使用时不需扩充存储器、所需外围电路简单等特点。介绍了芯片在语音报站器中的一个实际应用，并说明了其功能和使用方法，从而使读者对系列语音芯片的使用有个初步的了解。关键词：ISD4004单片机语音报站器语音芯片是由美国公司推出的新产品。关于该语音芯片的引脚说明以及内部电路等，很容易在公司提供的芯片资料中查到，笔者就不进行过多的描述，只简单地对其特点做一介绍。与普通的录音重放芯片相比，具有如下特点：首先，记录声音没有段长度限制，并且声音记录不需要转换和压缩；其次，将快速闪存作为存储介质，无需电源即可保存数据长达年，重复记录次以上；此外，具有记录时间长（可达分钟，本文采用的为分钟的语音芯片）的优点；最后，的开发应用具有所需外围电路简单的优点，这一点从