嵌入式USB主機控制器的研究與設(shè)計.pdf

1、重慶大學碩士學位論文嵌入式USB主機控制器的研究與設(shè)計姓名：余勇志申請學位級別：碩士專業(yè)：信號與信息處理指導教師：何偉20090603英文摘要ABSTRACTWithmerapiddevelopmentofinfonnationtec|111010鼢tlleUniVersalS嘶alBus(USB)hasbeenwidelyusedindatacommuIlicationareabecauseithaSmallyadValltagess

2、uch器lli曲speed，manytypesoftransfersupported，play鋤dplug鋤deXpandabili吼11raditionalUSBsysteIIlisconsistedofmeUSBhostcontrollerandmeUSBdevicecontroll％theinconvellientofPCtal(ingrestrictsthe印plicationofUSBdevicesinmobilefieldT

3、herefore，itisnecessarytoresearchmeimplemelltofhostcontIollerinmobilefield鋤deInbeddedplatform，、Ⅳhichsatisfiesmeneedofmobilityandport￡IbilityofUSBsystemTheSOPCon—chippro伊a塒mablesysteIIlaIldthe鋤beddedsyst鋤arepopularconc印tsi

4、ntheelec仃onicdesi朗NiosIIdeVelopedbyAlteraisaIl鋤beddedsoR—coreprocessorusingmepipelinetecllnology，sin百einstmctionstre鋤ofRISCncanbe鋤beddedwithint11eFPGA，andfomsadedicatedsystemwithuserdefined10百cbasedonmeFPGAchipUSBhostcon

5、troUeralsocanbe鋤beddedinembeddedsyst鋤withmetechnologyofSOPCBasedontheconsiderationof印plications，ItookUSBtechnologyaIldembeddedsystemtecllIlologyaSthetheoreticalbasis，aIlalyzedtlleworkingprincipleofUSBhostContmll％improved

6、its如nctionsundertheembeddedeIlviro衄ent，anddesi印edaUSBhostcon仃ollerwhichcanbeinte伊atedwimportabledeVices(1)Basedontheresearchoftrallsmissionmeo巧a11dco舢municationprotoc01inUSBsystem，andanalysisonshortagesoftraditionalUSBsy

7、st鋤，IproposedanembeddedUSBhostcontI011erbasedonNiosII(2)Icanjedoutdetailedpartitiononthefhnctionmoduleof鋤beddedUSBhostcontrollerwhichincludesAVALONinterfacemodule，decodemodule，eIlcodemodule，unpackingmodule，pacl【ingmodule

8、，controllo西cmodule，CRCmodule，andFIFOmoduleIproposedtheprincipleandmnctionofeVerymoduleindetail，andc刪edoutdesi朗onth鋤usingV舐logH砌waredes嘶belanguage(3)IgaVedetaileddesi印on鋤beddedUSBhostController“V％mal【ingitcaIlaccessandcon