›› 2016, Vol. 36 ›› Issue (2): 28-.doi: 10.16708/j.cnki.1000-758X.2016.0003
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YU Guang-Liang, YANG Meng-Fei, XU Jian, JIANG Hong
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Abstract: Acomputationmodelintegratedwithinterruptsandtaskswaspresentedfortheanalysisofworstcaseresponsetime(WCRT)foranaerospaceembeddedsystemwithmultilevelinterrupts.Bothinterruptsandtaskswasusedforaunifiedprioritydefinitioninthismodel,sothetiminganalysisofnestedinterruptscanbecombinedwithtaskresponsetimeanalysistechniques.TheWCRTofbothinterruptsandtaskswasderivedintheintegratedmodel.Furthermore,detaileddescriptionsofkeyparameterswereproposedandthedifferencesbetweeninterruptsandtaskswerealsodiscussed.TheopensourceLEON3processorplatformandModelsimsoftwarewereintroducedtosimulateandverifythemethod.TheresultsshowthattheoverestimateoftaskWCRTislessthan5%whichdemonstratestheeffectivenessofthemethodandthevalueforengineeringapplications.
Key words: realtimesystem, embeddedsoftware, multilevelinterrupt, fixedpriorityscheduling, schedulabilityanalysis, worstcaseresponsetime, spacecraft
YU Guang-Liang, YANG Meng-Fei, XU Jian, JIANG Hong. Worstcaseresponsetimeanalysisofmultilevelinterruptsystems[J]. , 2016, 36(2): 28-.
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URL: http://zgkj.cast.cn/EN/10.16708/j.cnki.1000-758X.2016.0003
http://zgkj.cast.cn/EN/Y2016/V36/I2/28