汽車音響系統(tǒng)中雙機通信的設計與實現(xiàn).pdf

1、大連理工大學碩士學位論文汽車音響系統(tǒng)中雙機通信的設計與實現(xiàn)姓名：姜川申請學位級別：碩士專業(yè)：軟件工程指導教師：于紅20070417汽車音響系統(tǒng)中雙機通信的設計與實現(xiàn)DesignandImplementationofCommunicationBetweenTwoMicrocontrollerUnitsinCarAudioSystemAbstractInDevelopmentofEmbeddedSystemwegenerallyconfro

2、ntaimportantproblemthatiscommunicationbenv啪somemicrocontrollerunitsNowadaystherefilesomegeneralcommunicationmethod，whichinclude10werspecdserialwansmissionandhigherspeedparalleltransmissionBlltbecauseofsomespecialembarras

3、smentindifferentapplicationenvironmentItsdi伍culttoImplementcommunicationbymeansofcommonmethodInthispaperAthreehierarchicalcommunicationmodelisproposedincludingphysicallayerdatalinklayerandapplicatonlayerwhichssolvedthepr

4、oblemthatcommunicationbetweentwoMicrDcontrollerunitsinembeddedrealtimeoperatingsystemofCarAudioHardwareInterface，communicationprotocolandImplementationmethodalec)(paliatledon眥sschemeishalfduplexcommunicationmethodusingtw

5、osignallinesOnelineisdatasignedlineAnohterlineiscontrolsignallineThetransmitandreceiveporterofeachmicrocontrollerunitaleconnectedtodatasignallineTwoI／oportersaleconnectedtocontrolsignallincThetransferringdatabctwe∞oneano

6、therisusedbyUARTprotocolwithflamedataformatandtransmit辯quence，w11ich’saddedresponsionmechanismforreliabilityoftransmitInaddition11瞎ideaofmodematrixisintroducedtobedesignedISRsfortimingoftransmitandreceiveUsingmodematrixd

7、eveloperoancleardowiths1舭ofmmsmitintermpttriggerandprocess，andavoidmakingmistakeFinally，thecommunicationmodelisextendedamongmorethantwomicriocontrollerunitsandispromotedtohighspeedIransmitmode11地communicationschemeisthew