MPLAB ICD 3 In-Circuit Debugger User's Guide

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MPLAB ® ICD 3 In-Circuit Debugger User’s Guide2.4 DEBUGGER TO TARGET COMMUNICATIONThe debugger system configurations are discussed in the following sections.CAUTIONDo not connect the hardware before installing the software and USB drivers. Also, donot change hardware connections when the pod or target is powered.Standard ICSP Device CommunicationThe debugger system can be configured to use standard ICSP communication for bothprogramming and debugging functions. This 6-pin connection is the same one used bythe MPLAB ICD 2 in-circuit debugger.The modular cable can be either (1) inserted into a matching socket at the target, wherethe target device is on the target board (Figure 2-1), or (2) inserted into a standardadapter/header board combo (available as a Processor Pak), which in then pluggedinto the target board (Figure 2-2).Note:Older header boards used a 6-pin (RJ-11) connector instead of an 8-pinconnector, so these headers may be connected directly to the debugger.For more on standard communication, see Chapter 10. “Hardware Specification”.FIGURE 2-1:STANDARD DEBUGGER SYSTEM – DEVICE WITHON-BOARD ICE CIRCUITRYMPLAB ® ICD 3Target Deviceor PIMTarget BoardPowerDS51766A-page 14© 2008 Microchip Technology Inc.
Theory of OperationFIGURE 2-2:STANDARD DEBUGGER SYSTEM – ICE DEVICEProcessor PakHeaderStandardAdapterMPLAB ® ICD 3Device-ICEORICD HeaderTransition SocketDevice-ICETarget BoardPower2.5 COMMUNICATION CONNECTIONS2.5.1 Standard Communication Target ConnectionUsing the RJ-11 connector, the MPLAB ICD 3 in-circuit debugger is connected to thetarget device with the modular interface (six conductor) cable. The pin numbering forthe connector is shown from the bottom of the target PC board in Figure 2-3.Note:Cable connections at the debugger and target are mirror images of eachother, i.e., pin 1 on one end of the cable is connected to pin 6 on the otherend of the cable. See Section 10.6.2.3 “Modular Cable Specification”.FIGURE 2-3:STANDARD CONNECTION AT TARGETTargetConnectorVDDVPP/MCLRPGD2 4 6 LVPPGC1 3 5VssTargetPC BoardBottom Side2.5.2 Target Connection CircuitryFigure 2-4 shows the interconnections of the MPLAB ICD 3 in-circuit debugger to theconnector on the target board. The diagram also shows the wiring from the connectorto a device on the target PC board. A pull-up resistor (usually around 10 kΩ) isrecommended to be connected from the VPP/MCLR line to VDD so that the line may bestrobed low to reset the device.© 2008 Microchip Technology Inc. DS51766A-page 15
Page 1 and 2: MPLAB ® ICD 3In-Circuit DebuggerUs
Page 3 and 4: MPLAB ® ICD 3 IN-CIRCUITDEBUGGER U
Page 5 and 6: Table of ContentsChapter 10. Hardwa
Page 9 and 10: PrefaceCONVENTIONS USED IN THIS GUI
Page 11 and 12: PrefaceTHE MICROCHIP WEB SITEMicroc
Page 17 and 18: Overview1.5 DEVICE AND FEATURE SUPP
Page 19: 2.1 INTRODUCTIONMPLAB ® ICD 3 IN-C
Page 23 and 24: Theory of Operation2.5.5 Circuits T
Page 25 and 26: Theory of OperationConfiguration>De
Page 29 and 30: InstallationA transition socket is
Page 33 and 34: General Setup4.6 SETTING CONFIGURAT
Page 37 and 38: Tutorialcounter.c/*****************
Page 39 and 40: TutorialIFS0bits.T1IF = 0;TMR1 = 0;
Page 41 and 42: Tutorial5.5 VIEWING THE PROJECTAfte
Page 43 and 44: TutorialFIGURE 5-7:DEBUGGER PROGRAM
Page 45 and 46: Tutorial5.8 SETTING UP THE DEMO BOA
Page 47 and 48: Tutorial5.11.2 Setting a Single Har
Page 49 and 50: TutorialThe additional breakpoint w
Page 51 and 52: Tutorial2. To set multiple software
Page 57 and 58: Frequently Asked Questions (FAQs)
Page 61 and 62: Error MessagesICD3Err0030: Unable t
Page 63 and 64: Error Messages7.3 GENERAL CORRECTIV
Page 65 and 66: Error MessagesOther Things to Consi
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MPLAB ® ICD 3 IN-CIRCUITDEBUGGER U
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Debugger Function Summary9.2.2 Righ
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Debugger Function Summary9.3.1.2 BR
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Debugger Function Summary9.3.4 Even
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Debugger Function Summary9.4 PROGRA
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Debugger Function Summary9.5.2 Sett
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Debugger Function Summary9.5.5 Sett
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Hardware Specification10.6 STANDARD
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Hardware Specification1. Disconnect
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GlossaryData MemoryOn Microchip MCU
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GlossaryHex CodeExecutable instruct
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GlossaryMacro DirectivesDirectives
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GlossaryNesting DepthThe maximum le
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GlossaryRadixThe number base, hex,
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GlossaryStep OverStep Over allows y
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IndexUUSB..........................
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MPLAB ICD 3 In-Circuit Debugger User's Guide

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