毕业论文外文翻译-stm32简介.doc

毕业论文外文翻译-stm32简介.doc

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A.IntroductionofSTM32

STM32isbasedonthefamilyofARMCortex-M3core-designedspecificallyforembeddedapplicationsthatrequirehighperformance,lowcost,lowpowerconsumption.Theperformanceisdividedintotwodifferentseries:

STM32F103the"Enhanced"seriesandSTM32F101the"Basic"series.TheclockfrequencyofEnhancedSeriesisupto72MHz,thehighestperformanceofsimilarproducts;theclockfrequencyofBasicSeriesis36MHz,andthepricesof16positionproductssignificantlyenhancetheperformanceofmorethan16positionproducts,isthebestchoiceuserstobuythem.Thetwoseriesarebuilt-inflashfrom32Kto128K,isthecombinationofthemaximumcapacityoftheSRAMandperipheralinterfaces.Whentheclockfrequencyreaches72MHz,itexecutesfromFlashandtheSTM32powerconsumptionis36mA,thelowestpowerconsumptioninthe32-bitmarketproducts,theequivalentanimpressive0.5mA/MHz.

a.STMicroelectronicsGroup

STMicroelectronicsGroupwasestablishedinJune1987,isamergerofItaly'sSGSMicroelectronicsandtheFrenchThomsonsemiconductorcompany.InMay1998,SGS-THOMSONMicroelectronicswillchangethecompanynametoSTMicroelectronicsLimited.STMicroelectronicsisoneofthelargestsemiconductorcompaniesintheworld.Fromitsinceptiontodate,ST'sgrowingfasterthantheoverallrateofgrowthofthesemiconductorindustry.Since1999,SThasalwaysbeenoneoftheworld'stoptensemiconductorcompanies.Accordingtothelatestindustrystatistics,STMicroelectronicsistheworld'sfifthlargestsemiconductormanufacturerandaworldleaderinmanymarkets.Forexample,STMicroelectronicsistheworld'slargestdedicatedanalogchipsandpowerconversionchipmanufacturers,theworld'slargestindustrialsemiconductorandset-topboxchipsuppliersanddiscretedevices,mobilephonecameramoduleandcarfieldofintegratedcircuitshighestintheworld.

STMicroelectronicshastheentiregroupemploysnearly50,000,with16state-of-the-artR&Dinstitutionsand39designandapplicationcenters,15mainmanufacturingplant,andhas78salesofficesin36countries.ThecompanyisheadquarteredinGeneva,Switzerland,isalsotheheadquartersofEuropeanandemergingmarkets;company'sU.S.headquartersinDallas,Texas,Carrollton;Asia-PacificheadquartersinSingapore;businessinJapanbyTokyoasaheadquarters;GreaterChinaheadquartersinShanghai,responsibleforbusinessinHongKong,mainlandChinaandTaiwan.

December8,1994forthefirsttimesincethecompletionofthepublicofferingofshares,STMicroelectronicshasbeeninNewYorkStockExchange（tickersymbol:

STM）andPanOuBaliStockExchangelisted,inJune1998,inMilan,Italy,securitiesExchange.STMicroelectronicshasnearly900millionsharesinthepublicofferingofshares,ofwhichapproximately71.1%ofthesharesarepubliclytradedonthevariousstockexchanges.Another27.5%ofthestockbySTMicroelectronicsHoldingIIBVLimitedhelditsshareholdersFinmeccanicaandCDPItalianFinmeccanicaconsortiumArevaandFranceTelecom,theFrenchconsortium;remaining1.4%oftreasurysharesbySTMicroelectronicshold.

b.STultra-low-powerARM®Cortex™-M3microcontroller

STM32Lseriesofproductsarebasedontheultra-low-powerARMCortex-M3processorcore,STMicroelectronicstwouniqueenergy-savingtechnologies:

130nmdedicatedlow-leakagecurrentmanufacturingprocessandoptimizeenergy-savingarchitecturetodeliverindustry-leadingenergy-savingperformance.Thisseriesbelongstothelineup32STMicroelectronicsSTM32microcontrollerproductfamily,theproductfamily,atotalof180balanceofproduct,thefullrangeofproductssharemostofthepin,softwareandperipherals,excellentcompatibilitywithdeveloperstothemaximumdesignflexibility.

c.STultra-low-powerARM®Cortex™-M0microcontroller

STM32F0seriesofproductsarebasedontheultra-low-powerARMCortex-M0processorcoretechnologyandfeatures,enhancedintegration,aimedattheapplicationofultra-low-costbudget.Thefamilyofmicrocontrollerstoshortenthe8-bitand16-bitmicro-controllerdevicesandtheperformancegapbetweenthe32-bitmicrocontrollerdevice,theuserterminalproductsintheeconomytoachievestate-of-the-artcomplexfeatures.

d.Products

BeforeSTM32F105andSTM32F107interconnectfamilyofmicrocontrollers,STMicroelectronicshasintroducedtheSTM32AccessLineEnhancedSeries,theseriesoftheUSBbasicseriesandenhanced;newproductsfollowtheEnhancedSeries72MHzprocessingfrequency.Memory64KBto256KBFlashand20KBto64KBembeddedSRAM.TheLQFP64,LQFP100,andLFBGA100threepackageinthenewseries,adifferentpackagetomaintainthepinoutconsistency,combinedwiththeSTM32platformdesignphilosophy,anddevelopersbyselectingtheproductscanbere-optimizationfunction,memory,performanceandpincount,withaminimumofhardwarechangestomeetindividualapplicationneeds.

UntilJuly1,2010,thecirculationofmodels:

Basic:

STM32F101R6STM32F101C8STM32F101R8STM32F101V8STM32F101RBSTM32F101VB

Enhanced:

STM32F103C8STM32F103R8STM32F103V8STM32F103RBSTM32F103VBSTM32F103VESTM32F103ZE

STM32modelsDescription:

STM32F103RBT6chipmodel,forexample,thecompositionsofthemodelsofsevenparts,itsnamingrulesareasfollows:

（1）STM32:

STM32ARMCortex-M3representskernelof32-bitmicrocontrollers.

（2）F:

Frepresentsthechipsub-series.

（3）103:

103representativesEnhancedSeries.

（4）R:

RThisisarepresentativeofthenumberofpins,whereTrepresents36feet,48feet,Crepresents,Rrepresentsa64feet,Vrepresentsthe100-pin144-pin,Zrepresents.

（5）B:

BarepresentativeofembeddedFlashcapacity,including6onbehalfof32KbytesofFlash,8onbehalfof64KbytesFlash,384KbytesFlashBonbehalfof128KbytesFlash,Conbehalfof256KbytesFlash,DrepresentativesEonbehalfof512KbytesFlash.

（6）T:

Tarepresentativeofthepackage,inwhichHrepresentsBGApackage,TrepresentsLQFPpackage,UrepresentsVFQFPNpackage.

（7）6:

6Thisisarepresentativeoftheoperatingtemperaturerange,where6represents-40-85℃,7onbehalfof-40-105℃.

e.STM32F103performancecharacteristics

Feature

1.Thekernel:

ARM32-bitCortex-M3CPU,themaximumoperatingfrequencyof72MHz,1.25DMIPS/MHz.Single-cyclemultiplyandhardwaredivision.

2.Memory:

integratedon-chip32-512KBofFlashmemoryand6-64KBSRAMmemory.

3.Clockresetandpowermanagement:

2.0-3.6VdrivevoltageofthepowersupplyandI/Ointerface,POR,PDRandprogrammablevoltagedetector（PVD）,4-16MHzcrystaloscillator,embedded8MHzRCoscillatortuningcircuitinthefactory,40kHzinternalRCoscillatorcircuit.FortheCPUclockPLL.WiththecalibrationfortheRTC32kHzcrystal.

4.Lowpowerconsumption:

threekindsoflow-powermodes:

Sleep,stop,standbymode.PoweredtheVBATRTCandbackupregisters.

5.Debugmode:

serialdebug（SWD）andJTAGinterfaces.

6.DMA:

12-channelDMAcontroller;supportedperipherals:

timers,ADC,DAC,SPI,IICandUSART.

7.212usclassA/Dconverter（16-channel）:

A/Dmeasurementrange:

0-3.6V.Dualsampleandholdcapability.Thechipintegratesatemperaturesensor.

8.2-channel12-bitD/Aconverter:

STM32F103xCSTM32F103xDSTM32F103xEunique.

9.Amaximumofupto112fastI/Oports:

Dependingonthemodel,26,37,51,80,and112I/Oports,allportscanbemappedtothe16externalinterruptvector.Inadditiontotheanaloginputcanacceptlessthan5Vinput.

10.Amaximumofupto11timers:

four16-bittimers,eachtimer4IC/OC/PWMorpulsecounter.Two16-channeladvancedcontroltimer:

upto6channelsforPWMoutput.2watchdogtimers（independentwatchdogandwindowwatchdog）.Systicktimer:

24-bitdowncounter.Two16-bitbasictimerisusedtodrivetheDAC.

11.Amaximumofupto13communicationinterfaces:

twoIICinterface（SMBus/PMBus）,5USARTinterface（ISO7816interface,LIN,IrDAcompatible,thedebuggingcontrol）,ThreeSPIinterface（18Mbit/s）,twoandIISreuse,CANinterface（2.0B）,USB2.0full-speedinterface,SDIOinterface.

12.ECOPACKpackage:

STM32F103xxfamilyofmicrocontrollersECOPACKpackage.

Systemrole

1.IntegratedembeddedFlashandSRAMmemory,ARMCortex-M3core.Andcomparedtothe8/16devices,theARMCortex-M332-bitRISCprocessorprovidesahigherefficiencyofthecode.TheSTM32F103xxmicrocontrollerwithanembeddedARMcore,socanbecompatiblewithallARMtoolsandsoftware.

2.EmbeddedFlashmemoryandRAMmemory:

built-upto512KBembeddedFlash,canbeusedtostoreprogramsanddata.Upto64KBofembeddedSRAMcanreadandwritetotheclockspeedoftheCPU（notwaitstate）.

3.Avariablestaticmemory（FSMC）:

FSMCembeddedinSTM32F103xC,STM32F103xD,STM32F103xE,withfourchipselectsupportfourmodes:

Flash,RAM,PSRAM,NORandNAND.AfterORafterthreeFSMCinterruptlinesconnectedtotheNVIC.Noread/writeFIFOPCCARDoutside,thecodeisexecutedfromtheexternalmemory,anddoesnotsupporttheBoottooktargetfrequencyequaltoSYSCLK/2Therefore,whenthesystemclockis72MHz,externalaccess,accordingto36MHz.

4.Nestedvectorinterruptcontroller（NVIC）:

canhandle43maskableinterruptchannels（notincludingthe16interruptlinesofCortex-M3）,provides16interruptpriority.TightlycoupledNVIClowerinterruptprocessingdelaydirectlypassedtothekernelinterruptentryvectortableaddress,tightlycoupledtheNVICkernelinterface,allowsinterruptstobeanticipated,afterthehigher-priorityinterrupthandlingsupporttailchain,automaticallysavethestateoftheprocessor,interruptentryautomaticallyresumewhentheinterruptexit,noinstructionintervention.

5.Theexternalinterrupt/eventcontroller（EXTI）: