单片机系统抗干扰方法 科技外文文献

单片机系统抗干扰方法科技外文文献嵌入式操作系统/service/1544编辑删除SCMalsobeknownasmicro-controller(Microcontroler),SCMonlybytheCPUchip,developedfromadedicatedprocessor.ThefirstdesignconceptisbyandlargenumberofperipheraldevicesintegratedinaCPUchip,thecomputersystemissmaller,moreeasilyintegrated.EarlySCMareeightorthefour.Oneofthemostsuccessfulisthe8031INTEL,becausesimpleandreliableandgoodperformancewaspraised.Sincethenin8031onthedevelopmentofaseriesMCS51SCMsystem.BasedonthissystemuntilnowtheSCMsystemisstillwidelyused.Asthefieldofindustrialcontrolrequirementsoftheincrease,begantoappearin16-bitmicrocontrollers.Asthe1990safterthebigconsumerelectronicsproductdevelopment,SCMtechnologygotahugeraise.WiththeemergenceofINTELi960series,especiallythelaterARMwiderangeofapplications,32-bitmicrocontrollerquicklyreplacedby16high-endMCUstatusandenterthemainstreammarket.Andthetraditional8-bitmicrocontrollersperformancehasbeenimprovingrapidly,thecapacityincreasecomparedwiththe1980safewhundredtimes.Atpresent,high-speed32-bitmicrocontrollerhasexceeded300MHz,catchingupperformanceofthemid-1990s,dedicatedprocessors.ContemporarySCMsystemisnolongeronlybareboneenvironmentinthedevelopmentanduseofalargenumberofdedicatedembeddedoperatingsystemiswidelyusedintheSCM.Ashandheldcomputersandmobilephoneswithhigh-endmicrocontrollercorecanevendirecttheuseofadedicatedWindowsandLinuxoperatingsystems.SCMprocessorformorethansuitableforembeddedsystems.InfactSCMistheworld'slargestnumberofcomputers.Modernhumanlifeusedinalmosteveryelectronicandmachineryproductswillintegrateamicrocontroller.Cellphone,telephone,calculator,householdappliances,electronictoys,handheldcomputersandcomputeraccessoriessuchasamousewitha1-2inboththeDepartmentofSCM.AndpersonalcomputerswillalsohavealargenumberofSCMatwork.Generalvehicleequippedwithmorethan40ofthemicrocontroller,complexindustrialcontrolsystemsmayhaveevenhundredsofSCMatthesametimework!SCMisnotonlyfarexceededthenumberofPCandotherintegratedcomputing,oreventhanthenumberofhumanbeingsmore.InSCMapplications,theMCUanti-jammingsystemsoftwaredebuggingandMCUprogramminghasbeentroubledforbeginners.Thisarticlebriefintroductionofthesetwoissues.SCMsystemsoftwareinterferencemethodsInimprovingtheabilityofanti-jammingsystemhardware,softwareinterferencewithitsflexibledesign,savehardwareresources,moreandmoreattentiontoreliability.BelowtheMCS-51SCMsystemasanexample,thecomputersystemsoftwareinterferencemethodsforresearch.Inengineeringpractice,anti-jammingsoftwareonthecontentofthemainonesbeing:1,analoginputsignaltoeliminatethenoise(suchasdigitalfiltertechnology);two,isrunningtheprogramwhenthechaosbacktotherighttrackapproach.Inthispaper,whichmadeseveraleffectivemethodsofanti-jammingsoftware.1.redundantdirectivesCPUprocessistotakeinstructionsfromoperatingcode,andthentakeafewoperators.WhenthePCinterferenceerrors,procedureswillbefromthenormaltrack"flying",whenflyingtoadouble-byteinstructions,iftheinstructionsforafewmomentslandedontheoperation,asthenumber-upoperationoperationcode,proceduralerrorwillbe.Ifthe"fly"tothethree-byteinstructions,agreaterprobabilityoferror.Insomekeyareaswereinsertedintosingle-byteinstructions,ortobeeffectivesingle-bytecommandrewritedirectiveknownasredundancy.Isusuallydouble-byteinstructionsandordersthreebytesinsertedaftermorethantwobytesoftheNOP.Thisflewtooperateevenifthenumberofflyingprocedures,theairoperationsofNOPbecauseoftheexistenceofthedirectivetoavoidbeingbehindtheoperationasanumberofimplementation,automaticallyintotherighttrack.Inaddition,thesystemflowstoplayanimportantroleinthedirectivesuchasRET,RETI,LCALL,LJMP,JC,andotherinstructionsinsertedbeforethetwoNOP,alsocouldbeflyingintotherighttrackprocedurestoensurethattheimplementationoftheseimportantdirectives.2.interceptiontechnologyTheso-calledblocking,isflyingtheprocedurewillle