CAN总线与RS422A通信适配器的设计与实现及抗干扰(3)
发布时间:2021-06-08
发布时间:2021-06-08
can总线
哈尔滨丁程大学硕十学何论文
Abstract
ThispaperismainlythedesignandrealizationoftheCANbusandon
RS-422correspondenceadapterinlightofhardwareandsoftware.
Firstly,itgivesbriefintroductiontothefieldbustechnology
work,and
systemanditsrelatednavigationanaccountoftheapplicationofCANbusintheoncomplexonawarship.Secondly,itdiscourses
andfocusesonthebasicprincipleandconceptofCANbustechnologythehierarchyoftheCANbus,theframe
oftheCABbushardware.Onstructureandanti-jamminganalysisandmeasures
thisbasis,itproposestheoveralldesignofthesystem.
Inthehardwaredesign,theadoptionofAT89C52serves
fortheasthemicroprocessorintelligentnodesoftheCANbussystem.IntheinterfaceofCANbuscorrespondence,theadoption
PHILIPSSelVesquaoftheCMOSchipsofSJAl000andTJAl050ofoftheindependentcorrespondencecontrollerCAN
tobus.TheTTL.anddesignoftheperipherycircuitrealizesthetransformationfromRS-422
theinterconnectionofSCM埘mcontroller(SJAl000)andtransceiver(TJAl050)ofCAN.Thesoftwaredesignincludes:compilingClanguageprogramofSCM,compilingsol,rareforCANcorrespondenceandformonitoringbusandapplyingDelphitothedevelopmentofuserinterface(uI).
Lastly,inthepracticalapplication,especiallyintheunfavorablyoperationalenvironmentandinthe
ascaseofseverelyjamming,thepaperexplorestheissuessuchabilityofthehowtoimproveanti-jammingCANbus,howforthesystemtooperatemorereliably.FromtheangleoftransmissiontheoryofCANbus,、jl,imthemethodofmeteringthewaveconfigurationofCANbus,itanalysesthefactorseffectingreliableCANtransmissionandputsforwardsomepropositionsandmeaasuresaboutanti-jamminghardwareandsoftwareintheapplicationofCANbus.Keywords:CANbus;RS-422;anti-jamming;SJAl000;Delphi