DS51795A Datasheet, PDF (35/98 Pages) Microchip Technology – PICkit™ 3 Programmer/Debugger

PICkit™ 3 USER’S GUIDE
Chapter 5. PICkit 3 Debug Express
5.1 INTRODUCTION
The PICkit 3 Debug Express kit works in conjunction with the MPLAB IDE application
to run, stop and single-step through programs. One or more breakpoints can be set and
the processor can be reset. Once the processor is stopped, the register’s contents can
be examined and modified.
For more information on how to use MPLAB IDE, reference the following
documentation:
• MPLAB^® IDE User’s Guide (DS51519)
• MPLAB^® IDE On-line Help
5.2 PICkit 3 DEBUG EXPRESS KIT CONTENTS
The PICkit 3 Debug Express kit (DV164131) contains the following items:
1. The PICkit 3 Development Programmer/Debugger
2. USB cable
3. 44-Pin Demo Board with device*
4. MPLAB IDE CD-ROM
5. PICkit 3 Debug Express C18 Lessons (tutorials) on CD-ROM
* The Explorer 16 board may also be used to debug.
5.3 INSTALLING THE HARDWARE AND SOFTWARE
Install the PICkit 3 hardware and software, if not already done, as specified in
Chapter 3. “Installation”.
Note: PICkit 3 Debug Express requires MPLAB IDE version 8.20 or later.
5.3.1 Reserved Resources
Due to the built-in in-circuit debugging capability of ICD devices and the ICSP function
offered by the debugger, the PICkit 3 Debug Express uses some on-chip resources
when debugging.
For information on device resources that are needed for in-circuit debugging, please
refer to the MPLAB PICkit 3 Help, found in the MPLAB IDE under Help>Topics. The
device reserved resource information found under “Resources Used By MPLAB
PICkit 3” is the same for the PICkit 3 Debug Express.
5.3.2 Connecting the Demo Board
The PIC18F45K20 included on the 44-Pin Demo Board can be debugged by simply
connecting the demo board to the PICkit 3 as shown in Figure 5-1.
© 2009 Microchip Technology Inc.
DS51795A-page 31