JTAG引脚定义--TargetConnectors2011-04-1115:31:00|分类：HYPERLINK"http://fcy007.blog.163.com/blog/"\l"m=0&t=1&c=fks_087064083080087066083084087095082084080075084"\o"CadenceAllegro"CadenceAllegro|标签：HYPERLINK"http://fcy007.blog.163.com/blog/"\l"m=0&t=3&c=jtag"jtagHYPERLINK"http://fcy007.blog.163.com/blog/"\l"m=0&t=3&c=pin"pinHYPERLINK"http://fcy007.blog.163.com/blog/"\l"m=0&t=3&c=connectors"connectors|字号大中小订阅【内容】在J-LINK调试电路中，经常会自定义10pins的连接器，对于电路板空间紧凑的情况下效果很好，下面参考keil的ulink-2的引脚定义，ULINK2providesfiveJTAGconnectors.Theysupportvariouscabletypes,whichareusedfordebuggingdifferenttargets.Theconnectorsprovidedare:Anarrow(2.00mm/0.079")pinspacing)20-pinconnectorforARMtargets,Astandard(2.54mm/0.1")20-pinconnectorforARMtargets,A16-pinconnectorforInfineonOCDS(JTAG)targets,A14-pinconnectorforSTMicroelectronics?PSDtargets,anda10-pinconnectorforARMtargets(Mfgr:DonConnexP/N:C42orSamtecP/N:SHF-105-01-L-D-TH).TheHYPERLINK"http://www.samtec.com/ftppub/pdf/FTSH_SMT.PDF"\t"blank"Samtecpartisavailablewithdifferentoptionsforplating,tail,shroud,andleadstyle.AcableforeachconnectorisshippedwiththeULINK2StandardProduct.Ifyoumustchangecables,thenmakesuretolineupthemarkerstripeonthecablewithpin1oftheconnector.Pin1islabeledontheboard.ULINK2AdapterConnectors(coveroff)ULINK2supportsbothJTAGandSerialWireModeinterfaces.RefertotheappropriatepinoutdiagramfortheULINK2adapterconnectorstomakesuretheymatchyourtargethardware.JTAGInterfaceSignalConnectsto...TMSTestModeStatepin—Use100KOhmpull-upresistortoVCC.TDOTestDataOutpin.RTCKJTAGReturnTestClocK.(seeNotebelow)TDITestDataInpin—Use100KOhmpull-upresistortoVCC.TRSTTestReSeT/pin—Use100KOhmpull-upresistortoVCC.TRSTisoptionalandnotavailableonsomedevices.Youmayleaveitunconnected.TCLKTestCLocKpin—Use100KOhmpull-downresistortoGND.VCCPositiveSupplyVoltage—PowersupplyforJTAGinterfacedrivers.GNDDigitalground.RESETRSTIN/pin—Connectthispintothe(activelow)resetinputofthetargetCPU.CPUCLKCPUclock(accordingIEEEStandard1149.1).OCDSEEnable/DisableOCDSi