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C2000Evolution
Theformulawassimple:takeaproven,well-establishedDSPcore,addnon-volatileflashmemory,anA-to-Dconverter,andaprogrammablePWMgenerator.Theresult:ahighlyintegrated,costeffectivesolutionfordigitalmotorcontrol.Inthisoriginalarchitecturalblockdiagram,weseeallthesefeatures,togetherwithintegratedserialcommunicationsportsandawatchdogtimer.Thisoriginalideahasstoodthetestoftimewell.Today,theC2000familyconsistsofdozensparts,allofwhicharevariationsonthissametheme.Let’sexaminethekeyeventsinthedevelopmentoftheC2000platform,andthefactorswhichinfluencedthem.TMS320F240Architecture16kWofsectoredFlashmemoryforfieldre-programmabilityandsimplifieddesign12PWMoutputsallowmulti-motor/axiscontrol6.1-usA/Dconverterenhancessystemaccuracy50nsinstructioncycle(20MIPS)forprocessingcomplexmotor-controlalgorithms544WordsofRAMforhigh-levelprogramminglanguageandhigh-ordersystemmodelizationCodecompatibleplatformprovideseasymigrationpath28configurableI/Opins16x16multiply32-bitPregisterShiftL(0,1,4,-6)32-bitALU16-bitbarrelshifter(L)32-bitaccumulatorShiftL(0-7)8auxiliaryregisters8-levelhardwarestackRepeatcount2statusregistersProgram/Data/I/OBusesProgramFlash16KwordsDualA/DConverter10bits,16channelsSPISCI’C2xxDSPCore16-bitTregisterDataRAM544wordsPeripheralBusWDTimerEventManager3timers12compares12PWMoutputsDeadbandlogic4inputcapturesQEPchannelEMIF2
clickThiswasfollowedbyaseriesofthreeother5Voltparts–theflashbasedF243andF241,andtheROMbasedC242.TheredevicesfeaturedmodifiedperipheralsandaCANcommunicationsport.clickTheLF240xserieswasreleasedin2000.Thesepartsuseda3.3Volttechnologyenablingcorespeedsupto30MHz,whileasecondseries...click...–theLF240xA-increasedtheCPUclockspeedto40MHzandintroducedacodesecuritym
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