Using

Install the Latest Software

Install the MPLAB IDE software onto your PC using the MPLAB IDE CD-ROM or

download the software from the MPLAB IDE page of the Microchip web site

(www.microchip.com/MPLAB). Check the latest Release Notes for additional

information.

Configure PC USB Communications

Connect MPLAB ICD 3 In-Circuit Debugger to a PC USB port via a USB

cable. If the drivers do not install automatically, then install the drivers as

instructed in:

C:\Program Files\Microchip\MPLAB IDE\ICD 3\

Drivers\ddri.htm.

Note:

If a USB hub is used, the hub must be powered with its own power supply.

Connect to Target Device

Build Your Project

1. Launch MPLAB IDE.

2. Load your project or use the Project Wizard to create a new one.

3. Build your project based on your configurations and options.

4. Attach the MPLAB ICD 3 to the PC using the USB cable.

5. Select the MPLAB ICD 3 as either a debugger (Debugger>Select Tool>ICD 3)

or as a programmer (Programmer>Select Programmer>ICD 3).

Typical Debugger System – Device with on-board ICE circuitry

1. Ensure the MPLAB ICD 3 is attached to the PC using the USB cable, if not

already.

2. Remove the ICD 3 Test Interface Board and attach the modular cable

between the debugger and target board.

3. Connect power to the target board.

Target Connector Pinout

*Target device must be running with an oscillator for the debugger to function as a debugger.

Standard Connection

At Target

Bottom View

Of Target Board

2 4 6

1 3 5

The Microchip name and logo, the Microchip logo, MPLAB and PIC are registered trademarks of

Microchip Technology Incorporated in the U.S.A. and other countries. The MPLAB Certified logo

© 2010 Microchip Technology Inc., 3/10 DS51765C

www.microchip.com

and ICSP are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries.

© 2010 Microchip Technology Incorporated. Printed in the U.S.A. All Rights Reserved. 2/10

1 2 3 4 5 6

MPLAB ICD 3 RJ-11 Jack Pinout

•

Do not use greater than 100

depending on the overall load, it will prevent the target

from powering quickly when MPLAB ICD 3 is the source

of power.

•

•

voltage levels since these lines have 4.7 k

resistors in MPLAB ICD 3.

•

dedicated for communications to MPLAB ICD 3.

•

fast transitions on data and clock lines during

programming and debug communications.

•

bidirectional communication between MPLAB ICD 3 and

the target PIC®MCU.

Target Circuit Design Precautions

Target Application PC Board

2

1

5

4

3

PGC

PGD

XTAL*

Incorrect

2

1

5

4

3

DD

)

4.7 -

10 k

Ω

Typical

Target Application PC Board

PGC

PGD

XTAL*

4.7 k

Ω

4.7 k

Ω

MPLAB ICD 3

Internal Circuitry (simplified)

to power the

Input/Output

drivers in

MPLAB

ICD 3

debugger

Correct

Recommended Settings

Note: See the MPLAB ICD 3 User’s Guide for more component

and setting information.

ADDITIONAL INFORMATION

Circuitry and Connector Pinouts

Use the supplied ICD 3 Test Interface Board to verify that the MPLAB ICD 3

is functioning properly:

1. Connect the ICD 3 Test Interface board to the debugger using the

modular cable.

2. Ensure that “MPLAB ICD 3” is selected on either the Debugger or

Programmer menu in MPLAB IDE.

3. From that menu, select “Settings”, Status tab, then click on Run ICD 3

Test Interface. The status (pass/fail) is displayed in the Output window.

If a pass message is displayed, the MPLAB ICD 3 is functioning properly.

ICD 3 Test Interface Board

USB/Power

From PC

Modular Cable

Use the ICD 3 Test Interface Board

Program and Debug

1. Program your device.

2. As a programmer, MPLAB ICD 3 will automatically run your code. As a

debugger, you can run, halt, single step and set breakpoints in your code.

Alternate Debugger System Configuration Using an ICE Device

Targ et Bo ard

Transition Socket

Device-ICE

Processo r Pak

Standard

Adapter

Header

USB from PC

Device-ICE

ICD Header

OR

Power

USB from PC

Power

Target Device

or PIM

Targ et Bo ard

1

2

3

5

4

6

Reserved Resources

For information on reserved resources used by the debugger, see the MPLAB ICD 3

on-line help.

Modular Connector Pin

Microcontroller Pin

1

2

3

Ground

4

PGD (ICSPDAT)

5

PGC (ICSPCLK)

6

PGM (LVP)

COMPONENT

SETTING

Oscillator

•

OSC bits set properly

•

Running

Power

Supplied by target

WDT

Disabled (device dependent)

Code-Protect

Disabled

Table Read Protect

Disabled

LVP

Disabled

BOD

JTAG

Disabled

Must be connected

PGCx/PGDx

Proper channel selected, if

applicable

Programming

programming specs

Pin

Signal

PGM

1

PGC

2

PGD

3

Ground

4

5

6