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2011 Microchip Technology Inc. DS41618A
PIC18F4XK22 Development Board
User’s Guide
DS41618A-page 2 2011 Microchip Technology Inc.
Information contained in this publication regarding device
applications and the like is provided only for your convenience
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
MICROCHIP MAKES NO REPRESENTATIONS OR
WARRANTIES OF ANY KIND WHETHER EXPRESS OR
IMPLIED, WRITTEN OR ORAL, STATUTORY OR
OTHERWISE, RELATED TO THE INFORMATION,
INCLUDING BUT NOT LIMITED TO ITS CONDITION,
QUALITY, PERFORMANCE, MERCHANTABILITY OR
FITNESS FOR PURPOSE. Microchip disclaims all liability
arising from this information and its use. Use of Microchip
devices in life support and/or safety applications is entirely at
the buyer’s risk, and the buyer agrees to defend, indemnify and
hold harmless Microchip from any and all damages, claims,
suits, or expenses resulting from such use. No licenses are
conveyed, implicitly or otherwise, under any Microchip
intellectual property rights.
Trademarks
The Microchip name and logo, the Microchip logo, dsPIC,
K
EELOQ, KEELOQ logo, MPLAB, PIC, PICmicro, PICSTART,
PIC
32
logo, rfPIC and UNI/O are registered trademarks of
Microchip Technology Incorporated in the U.S.A. and other
countries.
FilterLab, Hampshire, HI-TECH C, Linear Active Thermistor,
MXDEV, MXLAB, SEEVAL and The Embedded Control
Solutions Company are registered trademarks of Microchip
Technology Incorporated in the U.S.A.
Analog-for-the-Digital Age, Application Maestro, chipKIT,
chipKIT logo, CodeGuard, dsPICDEM, dsPICDEM.net,
dsPICworks, dsSPEAK, ECAN, ECONOMONITOR,
FanSense, HI-TIDE, In-Circuit Serial Programming, ICSP,
Mindi, MiWi, MPASM, MPLAB Certified logo, MPLIB,
MPLINK, mTouch, Omniscient Code Generation, PICC,
PICC-18, PICDEM, PICDEM.net, PICkit, PICtail, REAL ICE,
rfLAB, Select Mode, Total Endurance, TSHARC,
UniWinDriver, WiperLock and ZENA are trademarks of
Microchip Technology Incorporated in the U.S.A. and other
countries.
SQTP is a service mark of Microchip Technology Incorporated
in the U.S.A.
All other trademarks mentioned herein are property of their
respective companies.
© 2011, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
ISBN: 978-1-61341-914-4
Note the following details of the code protection feature on Microchip devices:
• Microchip products meet the specification contained in their particular Microchip Data Sheet.
• Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.
• There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
• Microchip is willing to work with the customer who is concerned about the integrity of their code.
• Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable.”
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
Microchip received ISO/TS-16949:2009 certification for its worldwide
headquarters, design and wafer fabrication facilities in Chandler and
Tempe, Arizona; Gresham, Oregon and design centers in California
and India. The Company’s quality system processes and procedures
are for its PIC
®
MCUs and dsPIC
®
DSCs, KEELOQ
®
code hopping
devices, Serial EEPROMs, microperipherals, nonvolatile memory and
analog products. In addition, Microchip’s quality system for the design
and manufacture of development systems is ISO 9001:2000 certified.
PIC18F4XK22 DEVELOPMENT BOARD
USER’S GUIDE
2011 Microchip Technology Inc. DS41618A-page 3
Table of Contents
Chapter 1. PIC18F4XK22 Development Board Overview
1.1 Overview ........................................................................................................ 9
1.2 Highlights ........................................................................................................ 9
1.3 PIC18F4XK22 Development Board Contents ................................................ 9
1.4 PIC18F4XK22 Development Board Layout .................................................... 9
1.4.1 Analog Input Filtering Circuit ..................................................................... 10
1.4.2 PWM Filtering from RC2 ............................................................................ 11
1.4.3 PICtail™ Daughter Board Interface ........................................................... 11
1.4.4 PICkit™ Serial Analyzer Connector ........................................................... 11
1.4.5 ICSP™ (In-Circuit Serial Programmer™) Connector ................................ 11
1.4.6 Temperature Sensor ................................................................................. 11
1.4.7 25LC1024 Serial EEPROM ....................................................................... 11
1.4.8 32.768 kHz Crystal .................................................................................... 12
1.4.9 128x64 OLED ............................................................................................ 12
1.5 Powering the Demo Board ........................................................................... 12
1.6 Quick Start Guide ......................................................................................... 12
1.6.1 Downloading Demonstration Software ...................................................... 12
1.7 Programming Lessons ................................................................................. 14
Chapter 2. Troubleshooting
2.1 Introduction ................................................................................................... 15
2.1.1 The board does not power up. .................................................................. 15
2.1.2 Microcontroller is not executing code. ....................................................... 15
2.1.3 The microcontroller will not program. ........................................................ 15
Appendix A. Board Schematics
A.1 Introduction .................................................................................................. 17
PIC18F4XK22 Development Board User’s Guide
DS41618A-page 4 2011 Microchip Technology Inc.
Preface
INTRODUCTION
This chapter contains general information that will be useful to know before using the
PIC18F4XK22 Development Board. Items discussed in this chapter include:
• Document Layout
• Conventions Used in this Guide
• Warranty Registration
• Recommended Reading
• The Microchip Web Site
• Development Systems Customer Change Notification Service
• Customer Support
• Document Revision History
DOCUMENT LAYOUT
This document describes how to use the PIC18F4XK22 Development Board as a
development tool to emulate and debug firmware on a target board. The manual layout
is as follows:
• Chapter 1. “PIC18F4XK22 Development Board Overview” – Introduces the
PIC18F4XK22 Development Board and provides a brief description of the hard-
ware and the new features.
• Chapter 2. “Troubleshooting” – Describes the common problems of the
PIC18F4XK22 Development Board and their solutions.
• Appendix A. “Board Schematics” – Provides schematic diagrams for the
PIC18F4XK22 Development Board.
NOTICE TO CUSTOMERS
All documentation becomes dated, and this manual is no exception. Microchip tools and
documentation are constantly evolving to meet customer needs, so some actual dialogs
and/or tool descriptions may differ from those in this document. Please refer to our web site
(www.microchip.com) to obtain the latest documentation available.
Documents are identified with a “DS” number. This number is located on the bottom of each
page, in front of the page number. The numbering convention for the DS number is
“DSXXXXXA”, where “XXXXX” is the document number and “A” is the revision level of the
document.
For the most up-to-date information on development tools, see the MPLAB
®
IDE online help.
Select the Help menu, and then Topics to open a list of available online help files.
Preface
2011 Microchip Technology Inc. DS41618A-page 5
CONVENTIONS USED IN THIS GUIDE
This manual uses the following documentation conventions:
DOCUMENTATION CONVENTIONS
Description Represents Examples
Arial font:
Italic characters Referenced books MPLAB
®
IDE User’s Guide
Emphasized text ...is the only compiler...
Initial caps A window the Output window
A dialog the Settings dialog
A menu selection select Enable Programmer
Quotes A field name in a window or
dialog
“Save project before build”
Underlined, italic text with
right angle bracket
A menu path File>Save
Bold characters A dialog button Click OK
A tab Click the Power tab
N‘Rnnnn A number in verilog format,
where N is the total number of
digits, R is the radix and n is a
digit.
4‘b0010, 2‘hF1
Text in angle brackets < > A key on the keyboard Press <Enter>, <F1>
Courier New font:
Plain Courier New Sample source code #define START
Filenames autoexec.bat
File paths c:\mcc18\h
Keywords _asm, _endasm, static
Command-line options -Opa+, -Opa-
Bit values 0, 1
Constants 0xFF, ‘A’
Italic Courier New A variable argument file.o, where file can be
any valid filename
Square brackets [ ] Optional arguments mcc18 [options] file
[options]
Curly brackets and pipe
character: { | }
Choice of mutually exclusive
arguments; an OR selection
errorlevel {0|1}
Ellipses... Replaces repeated text var_name [,
var_name...]
Represents code supplied by
user
void main (void)
{ ...
}
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