单片机英文资料+英文文献.docx

单片机英文资料+英文文献.docx

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单片机英文资料+英文文献

单片机英文资料+英文文献

Dormancyoftheone-chipcomputer---restoretothethroneintheoperationwayandimproveanti-interferenceability

Introduceakindofdormancyofusing-restoretothethrone

intheoperationwayandimprovetheanti-interferenceabilitymethodof

theone-chipcomputer;Analyseitsscopeofapplication,provideanduse

thecircuitconcretly;Combinetheinstance,analysethecharacteristic

ofthehardwareandsoftwaredesignunderthesekindofoperationway.

Keyword:

One-chipcomputerRestoretothethrone/dormancyanti-interferenceForeword

Withthedevelopmentatfullspeedofthemicroelectrictechnique,theperformanceoftheone-chipcomputerimprovesrapidly,demonstrate

theoutstandingadvantageintheoperation,logiccontrol,intelligent

respect,replacedandenlargedthemeasuringthatthecircuitmadeup,

controlcircuitbydigitallogicalcircuit,operationoriginallytoa

greatextent,useveryextensivly.Butbecauseithavesystemhalted,

procedureruncriticaldefectofflyingetc,makeitlimitinalotof

importantapplicationofoccasion.Alotoftechnologyin

anti-interference,forexamplesetupthesoftwaretrap,addthehardware

toguardthegateindog'scircuitetc,canmakethisproblemhavebetter

settlement,butstilltheexistingproblem:

?

Guardthegatedogatthe

movement,meanandappearmistakealreadyandrunsometime,thisisnot

allowedinsomeoccasions;?

Procedureappearcirculationmistakevery

muchsometimes,butjustguardthegatedogcontrollinkincludeandenter,

adoptandguardthegateastosuchamistakedogunabletodiscern;?

Inmeasureandcontrolcycleamongthelongsystem,one-chipcomputer

spendwaitfortheperipheralhardwarealargeamountoftime,willbe

interferedtoowhencarryoutandwaitfortheorder.Tothesesituations,

wehavetriedthemethodrestoredtothethronevoluntarilyinpractice,

alternatepulseofadoptingetcorrestoretothethronewakingaccording

toexternaltermstotheone-chipcomputerup.Afterbeingrestoredto

thethroneeachtime,theone-chipcomputercarriesoutthecorresponding

procedure,entersdormancyintimeafterfinishingcarryingoutthetask,

waittoberestoredtothethronenextly.Havesolvedabove-mentioned

problemswellwiththismethod,andhasgotbetterresultinthe

agriculturalvoltagetransformercomprehensiveprotectorexperiment.Now

take51serialone-chipcomputersasanexampleandprobeintotheconcrete

principleandimplementationmethod,restoredtothethronethesignal

asthehighlevel.

1.Aprincipleandimplementationmethod

1.1Restoredtothethronethelawregularlyunconditionally

Usetimer,special-purposeclockchiporotherpulsegenerator,producesignalofrestoringtothethroneregularlyaccordingtointervalthatsetfor.Thiskindofmethodisespeciallysuitableforthemeasuringinstrument.Innotrunningactually,sampletheanalogquantityof

introductionwithA/Dconverteroften,thenstoreshowing.Thiscourse

isveryfast,butsteadyforreading,thedatapersecondareonlyupgraded1-2times,alargeamountoftimeofCPUisusedforwaiting.LetCPU

carryoutandenterdormancydirectlyafterthetask,restoretothe

throneandwakebyexternalworldupItcarryoutthenextoperation,thisistorestoretothethronethelawregularlyInthiswaycanmake

anti-interferenceabilitystrengthengreatly,have2pointsmainly:

?

.

Atthedormancy,procedurestoprun,canappearPCindicatordisorderly

procedurethatcausesrunandfly.Worktimeindormancyproportion1:

9,thatistosay1shave0.1timeofsusedformeasuring,sendingoffshowing,thereistimedormancyof0.9s,theprobabilitythattheprocedureis

interferedis1/10whilerunningatfullspeed,wholeanti-interference

abilityraiseby10times.?

Becauseevery1sisrestoredtothethrone

onceunconditionally,oncepresentthesystemhaltedduringajob,can

certainlyresumewhenrestoredtothethronenexttime.Astoonly

instrumentthatshow,somereadingmistakethat1sappearaccidentally

thereisnomemorytothenextmeasurement,becouldbear,belongto

“pass”mistake.Thiskindisrestoredtothethronetheadvantageof

dog'scircuitforguardingthegateregularly,first,changewaitingtimeintoadormancystate,timetoshortenandmaybeinterfered;Second,

avoidedhappenningthatthedogcontrolsthedeathcirculationofthelinktoincludeguardingthegate.

1.2Theexternalconditionisrestoredtothethronethelaw

Somearrivalthatexportormeasureiscontrolledbytheoutside.For

instance,thehotform.ofheating,rotatethepulseproducedand

calculateheatbyhotwaterwaterwheels,thereisnohotwatertoflow,thereisnoheattoexport,CPUonlyneedinfactkeepnumbervalue,do

notneedtocount.Canimaginehotwaterwaterwheelsrotatewhenparkingwarm,CPUidleinwillitbewillitbeoneseasonautumnspringandsummer,Ifletdormancyits,measurehavewaterwheelspulseconstantly,

anti-interferenceabilitycanstrengthengreatly.So,solongaslinkuptherestoringtothethroneofthepulseofthewaterwheelsandCPU,thewaterwheelsrotateacircleeachtime,CPUisrestoredtothethroneonce,hotform.canworknormally,thisisrestoredtothethronethelawby

theexternalcondition.Similarapplicationhavehalfelectron

kilowatt-hourmeter,goononecountjustwhenthemachinerydegreewheelsandtransferstoacircle,usersdonotneedtheelectricity,CPUhasbeen

knowingthedormancyallthetime.Therestoringtothethroneinthe

intervalnottoberegular,butconfirmedaccordingtotheexternal

conditionofthismethod.Insomeoccasions,thetimeofthedormancywill

beverylong,veryeffectivetoimprovinganti-interferenceability.

2.Thehardwarerealizesthemainpoint

2.1Restoredtothethroneregularlyunconditionally

Generallyhave2kindsofmethods.?

Usetheitimerorthe

special-purposeclockchiptoberestoredtothethrone.Fig1,inorder

tousethetimingcircuitthat555circuitmakesup;Canusetheclock

chipsofX1126,etctoo,wakeCPUupwiththealarmsignalaftersetting

upwarningtime.Thiskindofmethodissuitablewhenthelonginterval

ismade,canalsofollowtheresultofthisoperation，determinetowake

timeupinalarmnexttimetemporarily,veryflexibleandconvenient.?

Thesignalofusingthesystemtobeinherentisasreducingthepulse

regularly.Use50Hzworkerpowermakereducingafterhavingafacelift

frequently,alreadyomitthetimer,gatheredthecorrespondingsignalfor

thephaseplacewhichmeasuredtheelectriccurrentsignalatthesame

time,asFig.2shows.

2.2Externalconditionsarerestoredtothethrone

Sendexternalconditionpulsetoandisrestoredtothethronethe

endsonafterhavingafacelift.Tothatabove-mentionedwaterwheelsor

theammeterspendapulseproduced,canuseSchmitt'striggertohavea

facelift;Forwritingdowntheinstrumentofthebiggestorminimum，

canusethewindowcomparator.Inordertorealizetheelectronization

thatisregulated，canusetheelectronicelectricpotentialdevice,establishupperandlowerlimitswiththeorderoftheone-chipcomputer.

2.3Reducecycleandrestoredtothethronethehighelectricityat

ordinarytimes

InFig3,restoredtothethronethesignalduringhighlevelTr,the

one-chipcomputerisinthestateofrestoringtothethrone,theproceduredoesnotrun,anti-interferenceabilityisthestrongest;Afterthehighlevel,theone-chipcomputerbeginstoholdtheconductprocedure.Thatistosay,arerestoredtothethroneandsuitableforthetimethattheprocedurecarriesoutduringthelowlevelTdofthesignal,thistimeshouldbegreaterthantheexecutioncycleoftheprocedureeachtime.Itisrestoretothethronecycleandrestoretothethronehighlevelofsignaltakeemptythanverymuchimportanttochooserationally.Astosimpletoshowinstrument,restoretothethronecycledeterminedatabreakcycle,lowelectricityisitmeasure,hancloveralltimeshowntogreaterthantowantatordinarytimes;Otherwise,cantpresentforeverthemistakeoftheintactexecutiveprogram.MonolithicintegratedcircuitinTsandTrperiodallcaneffectivelytheantijamming,butisbesttheunnecessarytimearrangementinTr.Whentheprogramtimeislong,whenasfaraspossibletherequestreducesTr,mayjointhedifferentiatingcircuit,likechart1centerC30,R26,D9.

2.4Treatmentofoutputendsons

（1）Restoretothethronestraightpulse

DuringallI/Omouthofone-chipcomputerturnintothehighlevel

whenrestoringtothethrone.Thatistosayoutputforlowpinnormally,willaccordingtorestoretothethronecycleappearthewidthforthestraightpulseofTr.Thisstraightpulsewillinfluencethenormaloutput,2methodsaredealtwith:

?

Connectinparallelelectriccapacity

suppress,capacityconfirmaccordingtoTrtimethatrestoretothethroneonthesoninend.ReducingTrcanbereducedandconnectedtheelectriccapacityinparallel.?

Itisinvalidtodesigntheperipheralcircuit

intothehighlevel.

（2）Fault-tolerant

Choosethecapacitythattheoutputendconnectstheelectriccapacity

inparallelfault-tolerantlyandproperly,canrealizefault-tolerantcontrol.Reducedcycleinacertain,becauseinterferedexportingthewronglevel.Becausethekeepingfunctionofelectriccapacity,can'tstillenableexportingthechangetothevalidlevelwithinthiscycle;Nextcycle,themistakeiscorrected.So,solongasdoesnotmakemistakesin2cyclesinsuccession,itisveryfault-toleranttoexportCertainly,thiskindofmethodwill