光伏发电逆变器毕业论文中英文资料外文翻译文献文档格式.docx

光伏发电逆变器毕业论文中英文资料外文翻译文献文档格式.docx

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TMS320LF2407,TMS320LF2406,TMS320LF2402

TMS320LC2406,TMS320LC2404,MS320LC2402

DSPCONTROLLERS

TheTMS320LF240xandTMS320LC240xdevices,newmembersofthe’24xfamilyofdigitalsignalprocessor（DSP）controllers,arepartoftheC2000platformoffixed-pointDSPs.The’240xdevicesoffertheenhancedTMS320architecturaldesignofthe’C2xxcoreCPUforlow-cost,low-power,high-performanceprocessingcapabilities.Severaladvancedperipherals,optimizedfordigitalmotorandmotioncontrolapplications,havebeenintegratedtoprovideatruesinglechipDSPcontroller.Whilecode-compatiblewiththeexisting’24xDSPcontrollerdevices,the’240xoffersincreasedprocessingperformance（30MIPS）andahigherlevelofperipheralintegration.SeetheTMS320x240xdevicesummarysectionfordevice-specificfeatures.

The’240xfamilyoffersanarrayofmemorysizesanddifferentperipheralstailoredtomeetthespecificprice/performancepointsrequiredbyvariousapplications.Flash-baseddevicesofupto32Kwordsofferareprogrammablesolutionusefulfor:

◆Applicationsrequiringfieldprogrammabilityupgrades.

◆DevelopmentandinitialprototypingofapplicationsthatmigratetoROM-baseddevices.

FlashdevicesandcorrespondingROMdevicesarefullypin-to-pincompatible.Notethatflash-baseddevicescontaina256-wordbootROMtofacilitatein-circuitprogramming.

All’240xdevicesofferatleastoneeventmanagermodulewhichhasbeenoptimizedfordigitalmotorcontrolandpowerconversionapplications.Capabilitiesofthismoduleincludecentered-and/oredge-alignedPWMgeneration,programmabledeadbandtopreventshoot-throughfaults,andsynchronizedanalog-to-digitalconversion.Deviceswithdualeventmanagersenablemultiplemotorand/orconvertercontrolwithasingle‘240xDSPcontroller.

Thehighperformance,10-bitanalog-to-digitalconverter（ADC）hasaminimumconversiontimeof500nsandoffersupto16channelsofanaloginput.TheautosequencingcapabilityoftheADCallowsamaximumof16conversionstotakeplaceinasingleconversionsessionwithoutanyCPUoverhead.

Aserialcommunicationsinterface（SCI）isintegratedonalldevicestoprovideasynchronouscommunicationtootherdevicesinthesystem.Forsystemsrequiringadditionalcommunicationinterfaces;

the’2407,’2406,and’2404offera16-bitsynchronousserialperipheralinterface（SPI）.The’2407and’2406offeracontrollerareanetwork（CAN）communicationsmodulethatmeets2.0Bspecifications.Tomaximizedeviceflexibility,functionalpinsarealsoconfigurableasgeneralpurposeinputs/outputs（GPIO）.

Tostreamlinedevelopmenttime,JTAG-compliantscan-basedemulationhasbeenintegratedintoalldevices.Thisprovidesnon-intrusivereal-timecapabilitiesrequiredtodebugdigitalcontrolsystems.AcompletesuiteofcodegenerationtoolsfromCcompilerstotheindustry-standardCodeComposerdebuggersupportsthisfamily.Numerousthirdpartydevelopersnotonlyofferdevice-leveldevelopmenttools,butalsosystem-leveldesignanddevelopmentsupport.

PERIPHERALS

TheintegratedperipheralsoftheTMS320x240xaredescribedinthefollowingsubsections:

●Twoevent-managermodules（EVA,EVB）

●Enhancedanalog-to-digitalconverter（ADC）module

●Controllerareanetwork（CAN）module

●Serialcommunicationsinterface（SCI）module

●Serialperipheralinterface（SPI）module

●PLL-basedclockmodule

●DigitalI/Oandsharedpinfunctions

●Externalmemoryinterfaces（’LF2407only）

●Watchdog（WD）timermodule

Eventmanagermodules（EVA,EVB）

Theevent-managermodulesincludegeneral-purpose（GP）timers,full-compare/PWMunits,captureunits,andquadrature-encoderpulse（QEP）circuits.EVA’sandEVB’stimers,compareunits,andcaptureunitsfunctionidentically.However,timer/unitnamesdifferforEVAandEVB.Table1showsthemoduleandsignalnamesused.Table1showsthefeaturesandfunctionalityavailablefortheevent-managermodulesandhighlightsEVAnomenclature.

EventmanagersAandBhaveidenticalperipheralregistersetswithEVAstartingat7400handEVBstartingat7500h.TheparagraphsinthissectiondescribethefunctionofGPtimers,compareunits,captureunits,andQEPsusingEVAnomenclature.TheseparagraphsareapplicabletoEVBwithregardtofunction—however,module/signalnameswoulddiffer.

Table1.ModuleandSignalNamesforEVAandEVB

EVENTMANAGERMODULES

EVAMODULE

SIGNAL

EVBMODULE

GPTimers

Timer1

Timer2

T1PWM/T1CMP

T2PWM/T2CMP

Timer3

Timer4

T3PWM/T3CMP

T4PWM/T4CMP

CompareUnits

Compare1

Compare2

Compare3

PWM1/2

PWM3/4

PWM5/6

Compare4

Compare5

Compare6

PWM7/8

PWM9/10

PWM11/12

CaptureUnits

Capture1

Capture2

Capture3

CAP1

CAP2

CAP3

Capture4

Capture5

Capture6

CAP4

CAP5

CAP6

QEP

QEP1

QEP2

QEP3

QEP4