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基于1553B总线的BU-61580芯片测试系统的设计与实现.docx

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基于1553B总线的BU-61580芯片测试系统的设计与实现 Introduction TheBU-61580chipisahigh-performanceMIL-STD-1553Binterfacecontrollerthatiswidelyusedinavionicssystems.TestingandvalidationoftheBU-61580chipiscriticaltoensureproperfunctioningoftheavionicssystemandoverallflightsafety.Inthispaper,wepresentthedesignandimplementationofatestingsystemthatisbasedonthe1553BbusprotocolandemploystheBU-61580chipfortestingtheavionicsdevices. Design Thetestingsystemiscomposedoftwomaincomponents,ahardwareinterfaceandasoftwareinterface.ThehardwareinterfaceconsistsofaPCBboardwiththeBU-61580chip,apowersupply,andconnectorsforconnectingtotheavionicsdevices.Thesoftwareinterfaceconsistsofasetofsoftwareprogramsthatcontrolthehardwareinterfaceandenablecommunicationwiththeavionicsdevices. Thehardwareinterfaceusesthe1553Bbusprotocolforcommunicationwiththeavionicsdevices.TheBU-61580chipprovidestheinterfacebetweenthehardwareandthe1553Bbus.Thechiphastwosetsofinterfaces,aninternalinterfaceforcommunicationwiththesoftwareinterface,andanexternalinterfaceforcommunicationwiththeavionicsdevices.TheexternalinterfaceoftheBU-61580chipisconnectedtothePCBboardusingstandardconnectors. Thesoftwareinterfaceiscomposedofasetofsoftwareprogramsthatareusedforcontrollingthehardwareinterfaceandcommunicatingwiththeavionicsdevices.ThesoftwareprogramsarewritteninCandrunonaPC.ThemainsoftwareprogramisresponsibleforinitializingtheBU-61580chip,configuringitforcommunicationwiththeavionicsdevices,andcontrollingthedataexchangeonthe1553Bbus.Thisprogramalsoprovidesauser-friendlyinterfaceforsettingupthetestparameters,executingthetestscripts,andgeneratingthetestreports. Implementation Thetestingsystemwasimplementedusingoff-the-shelfcomponentsandcustom-designedPCBboards.ThePCBboardwiththeBU-61580chipwascustom-designedtoprovidethenecessaryinterfacesandconnectorsforconnectingtotheavionicsdevices.Theboardalsoincludesvoltageregulators,filteringcapacitors,andothercomponentsnecessaryfortheproperfunctioningoftheBU-61580chip. ThesoftwareprogramswerewritteninCusing