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MPLAB®ICD 2 In- Circuit Debugger / Programmer

Posted on Sunday, August 14, 2011 by Arman Zulhajar









In-Circuit Debugging Basics
Traditionally, embedded systems engineers use in-circuit emulators (ICE) to develop and debug their designs and then programmers to transfer the code to the devices. The in-circuit debugging logic, when implemented, is part of the actual microcontroller silicon and provides a low-cost alternative to a more expensive ICE. In-circuit debugging offers these benefits: 






  • Low cost

  • Minimum of extra hardware

  • Expensive sockets or adapters are not needed

  • Debugging and programming a production line board is possible





However , it has the following trade-offs:


  • Use of some target system resources such as I/O pins,
    program memory, data memory, and stack space. As a result, some portions of an
    embedded application may not be debugged.

  • Triggering and breakpointing are limited to the built-in capabilities
    of the in-circuit debugging logic.

  • The target chip must be running with a clock and a supply
    voltage. Often an emulator probe can run without external hardware







All in one Debugger/Programmer Solution for Flash Products


The MPLAB ICD 2 (In-Circuit Debugger 2) allows debugging
and programming of PIC®and dsPIC®Flash microcontrollers using the powerful
graphical user interface of the MPLAB Integrated Development Environment (IDE),
included with each kit. The MPLAB ICD 2 is connected to the design engineer's
PC using USB or RS-232 interface and can be connected to the target via an ICD
connector. The connector uses two device I/O pins that are shared between
in-circuit debugging and In-Circuit Serial Programming™.





Host System Requirements


  • PC-compatible system with a Intel Pentium®class or higher
    processor , or equivalent

  • A minimum of 32 MB RAM

  • A minimum of 40 MB available hard drive space

  • CD-ROM drive (for use with the accompanying CD)

  • Available USB or RS-232 port

  • Microsoft®Windows®98, Windows NT®4.0, Windows 2000 or
    Windows XP . USB support may be limited by the Windows operating system,
    particularly Windows 98/NT .





Features


  • USB (Full Speed 2 Mbits/s) and RS-232 interface to host
    PC

  • Real-time execution

  • MPLAB IDE compatible (free copy included)

  • Built-in over voltage/short circuit monitor

  • Firmware upgradeable from PC/web download

  • Totally enclosed

  • Supports low voltage to 2.0 volts (2.0 to 6.0 range)

  • Diagnostic LED's (Power , Busy, Error)

  • Read/Write program and data memory of microcontroller

  • Erase of program memory space with verification

  • Freeze-peripherals at breakpoint





Products Supported


The MPLAB ICD 2 currently supports most PIC and dsPIC Flash
microcontrollers. Flash PICmicro MCU’s not supported are
PIC16F72/73/74/76/77/83/84A. The MPLAB ICD 2 firmware is continually being
updated to add support for new devices. A review of the README file located in
MPLAB IDE is recommended for the most current list of supported parts. As new
device firmware becomes available, free downloads are available at www.microchip.com.


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