MICROCHIP PIC18F4XK20 Technical data

PIC18F4XK20 Starter Kit

User’s Guide

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.

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in this publication regarding device applications and the like is provided only for your convenience and may be superseded by updates.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, Accuron, dsPIC, K

EELOQ, KEELOQ logo, MPLAB, PIC, PICmicro,

PICSTART, PRO MATE, rfPIC and SmartShunt are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries.

FilterLab, Linear Active Thermistor, MXDEV, MXLAB, SEEVAL, SmartSensor 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, CodeGuard, dsPICDEM, dsPICDEM.net, dsPICworks, dsSPEAK, ECAN, ECONOMONITOR, FanSense, In-Circuit Serial Programming, ICSP, ICEPIC, Mindi, MiWi, MPASM, MPLAB Certified logo, MPLIB, MPLINK, mTouch, PICkit, PICDEM, PICDEM.net, PICtail, PIC

logo, PowerCal, PowerInfo, PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Total Endurance, UNI/O, 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.

Printed on recycled paper.

Microchip received ISO/TS-16949:2002 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 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.

MCUs and dsPIC® DSCs, KEELOQ

code hopping

PIC18F4XK20 STARTER KIT

USER’S GUIDE

Table of Contents

Preface ........................................................................................................................... 1

Chapter 1. PIC18F4XK20 Starter Kit Overview

1.1 Overview ........................................................................................................ 5

1.2 Highlights ........................................................................................................ 5

1.3 PIC18F4XK20 Starter Kit Contents ................................................................ 5

1.4 PIC18F4XK20 Starter Kit Layout .................................................................... 6

1.4.1 Analog Input Filtering Circuit ....................................................................... 7

1.4.2 PWM Filtering from RC2 .............................................................................. 7

1.4.3 PICtail™ Daughter Board Interface ............................................................. 7

1.4.4 PICkit™ Serial Analyzer Connector ............................................................. 7

1.4.5 ICSP™ (In-Circuit Serial Programmer™) Connector .................................. 7

1.4.6 Temperature Sensor ................................................................................... 8

1.4.7 25LC1024 Serial EEPROM ......................................................................... 8

1.4.8 32.768 kHz Crystal ...................................................................................... 8

1.4.9 128x64 OLED .............................................................................................. 8

1.5 Powering the Demo Board ............................................................................. 8

1.6 Quick Start Guide ........................................................................................... 8

1.6.1 Downloading Demonstration Software ........................................................ 8

1.7 Programming Lessons ................................................................................. 10

Chapter 2. Troubleshooting

2.1 Introduction ................................................................................................... 11

2.1.1 The board does not power up. .................................................................. 11

2.1.2 Microcontroller is not executing code. ....................................................... 11

2.1.3 The microcontroller will not program. ........................................................ 11

Appendix A. Board Schematics

A.1 Introduction .................................................................................................. 13

Worldwide Sales and Service .................................................................................... 20

PIC18F4XK20 Starter Kit User’s Guide

NOTES:

PIC18F4XK20 Starter Kit

USER’S GUIDE

Preface

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 Select the Help menu, and then Topics to open a list of available on-line help files.

IDE on-line help.

INTRODUCTION

This chapter contains general information that will be useful to know before using the PIC18F4XK20 Starter Kit. Items discussed in this chapter include:

• Document Layout

• Conventions Used in this Guide

• 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 PIC18F4XK20 Starter Kit as a development tool to emulate and debug firmware on a target board. The manual layout is as follows:

• Chapter 1. PIC18F4XK20 Starter Kit Overview – Introduces the PIC18F4XK20

Starter Kit and provides a brief description of the hardware and the new features.

• Chapter 2. Troubleshooting – Describes the common problems of the

PIC18F4XK20 Demonstration Board and their solutions.

• Appendix A. Board Schematics – Provides schematic diagrams for the

PIC18F4XK20 Demonstration Board.

PIC18F4XK20 Starter Kit User’s Guide

CONVENTIONS USED IN THIS GUIDE

This manual uses the following documentation conventions:

DOCUMENTATION CONVENTIONS

Description Represents Examples

Arial font:

Italic characters Referenced books MPLAB

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

Underlined, italic text with right angle bracket

Bold characters A dialog button Click OK

N‘Rnnnn A number in verilog format,

Text in angle brackets < > A key on the keyboard Press <Enter>, <F1>

Courier New font:

Plain Courier New Sample source code #define START

Italic Courier New A variable argument file.o, where file can be

Square brackets [ ] Optional arguments mcc18 [options] file

Curly brackets and pipe character: { | }

Ellipses... Replaces repeated text var_name [,

A menu path File>Save

A tab Click the Power tab

where N is the total number of digits, R is the radix and n is a digit.

Filenames autoexec.bat File paths c:\mcc18\h Keywords _asm, _endasm, static Command-line options -Opa+, -Opa- Bit values 0, 1 Constants 0xFF, ‘A’

Choice of mutually exclusive arguments; an OR selection

Represents code supplied by user

IDE User’s Guide

“Save project before build”

4‘b0010, 2‘hF1

any valid filename

[options] errorlevel {0|1}

var_name...] void main (void)

{ ... }

RECOMMENDED READING

This user's guide describes how to use the PIC18F4XK20 Starter Kit. Other useful documents are listed below. The following Microchip documents are available and recommended as supplemental reference resources.

PIC18F46K20 Data Sheet (DS41303)

This data sheet summarizes the features of the PIC18F46K20. It provides essential information needed to develop software for this device.

MCP9700/9700A and MCP9701/9701A Data Sheet (DS21942)

This data sheet summarizes the features of the MCP9700/9700A and MCP9701/9701A. It provides essential information needed to develop software for these devices.

MCP001/2/4 Data Sheet (DS21733)

This data sheet summarizes the features of the MCP001/2/4. It provides essential information needed to develop software for these devices.

25LC1024 Data Sheet (DS22064)

This data sheet summarizes the features of the 25LC1024. It provides essential information needed to develop software for this device.

Preface

THE MICROCHIP WEB SITE

Microchip provides online support via our web site at www.microchip.com. This web site is used as a means to make files and information easily available to customers. Accessible by using your favorite Internet browser, the web site contains the following information:

• Product Support – Data sheets and errata, application notes and sample

programs, design resources, user’s guides and hardware support documents, latest software releases and archived software

• General Technical Support – Frequently Asked Questions (FAQs), technical

support requests, online discussion groups, Microchip consultant program member listing

• Business of Microchip – Product selector and ordering guides, latest Microchip

press releases, listing of seminars and events, listings of Microchip sales offices, distributors and factory representatives

PIC18F4XK20 Starter Kit User’s Guide

DEVELOPMENT SYSTEMS CUSTOMER CHANGE NOTIFICATION SERVICE

Microchip’s customer notification service helps keep customers current on Microchip products. Subscribers will receive e-mail notification whenever there are changes, updates, revisions or errata related to a specified product family or development tool of interest.

To register, access the Microchip web site at www.microchip.com, click on Customer Change Notification and follow the registration instructions.

The Development Systems product group categories are:

• Compilers – The latest information on Microchip C compilers and other language

tools. These include the MPLAB C18 and MPLAB C30 C compilers; MPASM™ and MPLAB ASM30 assemblers; MPLINK™ and MPLAB LINK30 object linkers; and MPLIB™ and MPLAB LIB30 object librarians.

• Emulators – The latest information on Microchip in-circuit emulators.This

includes the MPLAB ICE 2000 and MPLAB ICE 4000.

• In-Circuit Debuggers – The latest information on the Microchip in-circuit

debugger, MPLAB ICD 2.

• MPLAB

Integrated Development Environment for development systems tools. This list is focused on the MPLAB IDE, MPLAB SIM simulator, MPLAB IDE Project Manager and general editing and debugging features.

• Programmers – The latest information on Microchip programmers. These include

the MPLAB PM3 and PRO MATE Plus and PICkit™ 1 development programmers.

IDE – The latest information on Microchip MPLAB IDE, the Windows®

II device programmers and the PICSTART®

CUSTOMER SUPPORT

Users of Microchip products can receive assistance through several channels:

• Distributor or Representative

• Local Sales Office

• Field Application Engineer (FAE)

• Technical Support

Customers should contact their distributor, representative or field application engineer (FAE) for support. Local sales offices are also available to help customers. A listing of sales offices and locations is included in the back of this document.

Technical support is available through the web site at: http://support.microchip.com

DOCUMENT REVISION HISTORY

Revision A (March 2008)

• Initial Release of this Document.

Revision B (April 2008)

• Removed reference to OLED Data Sheet

+ 16 hidden pages