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ID:36478151
大小:2.05 MB
页数:59页
时间:2019-05-11
《基于ARM的机载数据采集系统的设计与研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、西北上业丈学硕士学位论文AbstractThisthesispresentsthedesignandimplementationofallAir-BorneDataAcquisitionandRecorddevicebasedonRISCchipAT91RM9200withARM9207rcoreandembeddedoperatingsystemLinux.ForthesakeofAir-Bornefacility,highreliabilityisdemandedstrictly,Forimprov
2、ingreliability,compactnessmustberequired,SOchoosingaprocessorwithmulti—interfacetoreduceperipheralcircuitcouldachievehighreliability.ApplyingembeddeddesignonthisApplicationsystemisinevitable.TheAir—BorneDataAcquisitionandRecorddeviceresearchediflthis也esi
3、siSanembeddedsystembasedOn32.bitARMmicroprocessorAT91RM9200producedbyAtrnel.ThisdevicecouldCapturemanykindsofparameterswhenaircraftisinflightinreal-time,itprovidesbasaldataandinformationforflight—test.Startfromdiscussingthemainfunctionandtechniquedemand,
4、wecomewithoursolutionbasedonARM—Linuxplatform,giveabriefintroductionofARMmicroprocessor,ARM920TcoreandAT91RM9200.Wetakethethoughtof‘‘Coreboard-motherboard”,buildthehardwaresystemwhichistakingAT91RM9200asthecore,thecoreboardincludessomebasiccircuitwhichis
5、necessarilyusedinanARMsystem.Themotherboardentendsmanyuserinterfaces,suchasEnternetport.USB,UART,LEDandSOon.WeanalyzethemoduleofDataAcquisitionbasedonthemicroprocessorC8051F020indetailandintroducethemethodofstickingaccuratetimelabelbyGPS.Andthenweresearc
6、hthetransplantoftheLinuxOS,Ubootwillbecompliedandloaded,thekernelwillbeconfigured,cut,andthencomplied,thefilesystemwillbebuill.U—bootisnecessarybecauseitwillloadkernelandfilesystemtothetargetboard.AfterthaLwedisusstheflowchartofmainsoftwareinthissystem.A
7、tlast,aSUlTl—upofthisembeddedsystemisgiven.Ithasprovedthatthissystemhasthefollowingperformancesuchashighstability,highreliability,lowconsumptionandlowcost.ThissystemhassatisfiedallrequirementsofanAir-Bornetestequipment,andhasrealizedtheanticipatedpurpose
8、.Keywords:Embeddedsystem,AT91RM9200,Linux,C8051F020,GPSIl畦1£工业太学硕士学位论文第一章缝论"11'111第一章绪论嵌入式系统是继IT网络技术之后,又一个新的技术发展方向。由于嵌入式系统具有体积小、性能强、功耗低、可靠性商以及面向行业应用的突出特征,日前已经广泛地应用于军事国防、消费电子、网络通信、工业控制等各个领域,并成为近年来新兴的研究热点。ARM即AdvancedRISCMac
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