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in this publication regarding device applications and the like is provided only for your convenience and may be superseded by updates.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

{ ... }

Chapter 1. PIC18F4XK20 Starter Kit Overview

The PIC18F4XK20 Starter Kit is a demonstration and development tool designed for those getting started with microcontrollers or those looking to migrate to the new PIC18F4XK20/2XK20 family. The board is designed for general purpose applications and includes a variety of hardware to exercise microcontroller peripherals.

1.1 OVERVIEW

The PIC18F4XK20/2XK20 is a new family of microcontrollers that take advantage of Microchip’s latest process technology. Among the most notable of the new features are:

• lower power consumption

• high-performance operation and

•low-cost

Several firmware demos that showcase some of the features are included, as well as a PICkit™ 2 Development Programmer, which can be used to download the demos onto the development board.

The hardware included on the board allows for development as well. The microcontroller that is populated on the board, the PIC18F46K20, is the superset of the PIC18F4XK20/2XK20 family. Included on the board are various analog and digital circuitry used in microcontroller applications, in addition to a header which breaks out all signal lines for analysis or interfacing to external devices.

PIC18F4XK20 STARTER KIT

USER’S GUIDE

1.2 HIGHLIGHTS

This chapter discusses the features of the PIC18F4XK20 Starter Kit. Topics discussed include:

• PIC18F4XK20 Starter Kit Contents

• PIC18F4XK20 System Management Layout

• Powering the Demo Board

• Quick Start Guide

• Programming Lessons

1.3 PIC18F4XK20 STARTER KIT CONTENTS

The PIC18F4XK20 Starter Kit includes the following items:

• PIC18F4XK20 Starter Kit Board

• PIC18F4XK20 CD-ROM, which includes:

- PIC18F4XK20 Starter Kit User’s Guide

- PIC18F4XK20 Schematics and Layout

- Labs and Demo Software Source Code

- PIC18F4XK20/2XK20 Data Sheets

- 25LC1024 Data Sheet

• PICkit 2 Development Programmer

• Programming Lessons

PIC18F4XK20 Starter Kit User’s Guide

If you are missing any part of the kit, please contact your nearest Microchip sales office listed on the back of this publication.

1.4 PIC18F4XK20 STARTER KIT LAYOUT

The PIC18F4XK20 Starter Kit Board is populated with a PIC18F46K20 microcontroller. In addition, the board is also populated with the following features/components:

• 128x64 Organic LED Display (SPI)

• 32.768 kHz External Oscillator (Timer1)

• Analog Input Filtering and Gain Control into RE1 (1.4.1)

• PWM Output Filtering from RC2 (1.4.2)

• 4 Push Buttons for User Interfacing

•1 MCLR

• 8 LEDs mapped to PORTD

• Potentiometer

• 1024 KB Serial EEPROM

• PICtail™ daughter board header (breaks out all pins)

• 6-Pin ICSP™ programming capability header

• 6-Pin PICkit serial analyzer interface

• Current measurement jumper

• RJ-11 ICSP programming header

switch

FIGURE 1-1: STARTER KIT LAYOUT

PICkit

+5-12V Power

32 kHz xTAL

Audio/Analog IN with Adjustable Gain

Audio/Analog OUT

2 Interface

MCP9700 Temperature Sensor

ICD2 Interface

O-LED Display

PICkit

Serial

Interface

PICtail

Pushbuttons and POT

Header

Serial EEPROM

PIC18F4XK20 Starter Kit Overview

1.4.1 Analog Input Filtering Circuit

The analog filtering circuit is designed for use with an electret microphone. Electret microphones typically require biasing, which is provided by MIC bias jumper, JP3. The analog signal generated by a typical electret microphone has a peak to peak voltage in the single millivolts range. The analog filtering circuit has a maximum gain of 300 which can be controlled with the potentiometer labeled GAIN and is a 2nd order low-pass filter with a cut-off frequency of 5 kHz. Jumper JP3 needs to be removed if the analog input is provided by input test point.

1.4.2 PWM Filtering from RC2

The microcontroller output RC2 provides an active low pass filter that can be used to generate analog signals. A high frequency PWM output from RC2 can be pulse width modulated to vary the amplitude of the output signal.

1.4.3 PICtail Daughter Board Interface

The PICtail daughter board interface breaks out each pin of the microcontroller in addition to providing +V existing PICtail daughter boards. Visit the Microchip web site to find more details on PICtail daughter boards.

1.4.4 PICkit Serial Analyzer Connector

DD and ground. The header is designed to be compatible with

The PICkit serial analyzer connector provides pins for serial communication. The serial communications lines are designed to be used with the PICkit serial analyzer, but are also provided for general purpose communications as well.

The Serial Communications

pinout is shown below:

FIGURE 1-2: SERIAL COMMUNICATIONS PIN-OUT

+5V

456

SDA

SCL RX

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

A 6-pin ICSP programming capability and RJ-11 connectors are provided for programming the microcontroller. The PIC18F46K20 can be programmed through these connectors using the PICkit 2 programmer in the MPLAB ICD 2.

Note: The programming voltage on the microcontroller VPP pin must be below 9V

according to the programming specification. Protection circuitry (8.2V Zener with 820 Ohm series resistor) is in place to ensure that V exceed programming specifications.

PP does not

PIC18F4XK20 Starter Kit User’s Guide

1.4.6 Temperature Sensor

An MCP9700 temperature sensor is located on the board. The MCP9700 is an analog temperature sensor that provides a linear voltage output versus temperature. The voltage output of the temperature sensor is connected to the RE1 pin of the microcontroller

1.4.7 25LC1024 Serial EEPROM

A Microchip 1024 Kbit serial reprogrammable Flash memory with both Flash and byte-level serial EEPROM functions is provided.

The memory is accessed via a simple Serial Peripheral Interface (SPI) compatible serial bus. The bus signals are a clock input plus separate data in and data out lines. Access to the device is controlled by a Chip Select (CS) input on the microcontroller pin RA6.

1.4.8 32.768 kHz Crystal

The 32.768 kHz tuning fork crystal is interfaced to the RC0/T1OSO and RC1/T1OSI pins for use with the Timer1 peripheral.

1.4.9 128x64 OLED

The display provided on the development board is a 128x64 organic LED display. It interfaces to the microcontroller via Serial Peripheral Interface (SPI). The controller on the OLED is the SH1101A.

1.5 POWERING THE DEMO BOARD

The demonstration board can be powered in the following ways:

1. The board accepts a 2.5mm coaxial power connector in J3. Acceptable voltages range from +5-12 V

2. The PICkit 2 Development programmer can be used to provide power at connector P1. Do not exceed current of 100 mA on the board if the PICkit 2 is being used to power the board.

3. The PICkit Serial Analyzer can be used to provide power at connector P2. Do not exceed a current of 100 mA on the board if the PICkit Serial Analyzer is being used to power the board.

DC.

1.6 QUICK START GUIDE

The PIC18F4XK20 Starter Kit is preloaded with demonstration firmware. The board must be configured as described in this section in order to use the demonstration programs

Board Setup

1. Close jumper JP1 labeled Current Jumper, JP3 labeled Mic Bias and JP2.

2. Connect a +5-12V power supply to connector J3 in the upper left portion of the board.

1.6.1 Downloading Demonstration Software

The PIC18F4XK20 Starter Kit CD-ROM comes with 3 demonstration programs and 12 hands-on programming lessons. Using the PICkit 2 Development Programmer, demonstration firmware can be downloaded onto the demo board and the board can be powered.

PIC18F4XK20 Starter Kit Overview

1. Insert the included PIC18F4XK20 Demonstration Board CD into the CD-ROM

Drive.

2. Run the installation setup for MPLAB IDE.

3. Connect the PICkit 2 programmer to the Starter Kit board and computer.

4. Start the MPLAB IDE software.

5. Click File > Import.

FIGURE 1-3: IMPORT

6. Browse to the CD-ROM drive directory Demos.

7. Select one of the several demos available (readme.txt in the Demos directory

will describe each demo) and click Open:

PIC18F4XK20 Starter Kit User’s Guide

FIGURE 1-4: DEMOS AVAILABLE

8. Click Programmer > Select Programmer > PICkit 2:

FIGURE 1-5:

9. To program, click Programmer > Program.

10. Click Programmer > Release from Reset to release the M program.

1.7 PROGRAMMING LESSONS

CLR to run the

The PIC18F4XK20 CD-ROM includes a variety of programming lessons designed for use with the demonstration board. Insert the PIC18F4XK20 CD-ROM and browse to the Lessons directory of the CD-ROM.

2.1 INTRODUCTION

This chapter describes common problems when using the PIC18F4XK20 Demonstration Board and their solutions.

2.1.1 The board does not power up.

Make sure that the green POWER LED has turned on. If the LED is not on, check to see that the +9V power supply is properly connected.

2.1.2 Microcontroller is not executing code.

First check to make sure that the microcontroller has been programmed with the firmware that is intended to run. If the part is programmed, ensure that the current jumper JP1 is in place.

2.1.3 The microcontroller will not program.

Check to make sure that the programmer/debugger is properly connected to the PC and powered. Make sure that the board is also powered with the +9V power supply. Programming can only occur when the current jumper JP1 is connected.

PIC18F4XK20 STARTER KIT

USER’S GUIDE

Chapter 2. Troubleshooting

PIC18F4XK20 Starter Kit User’s Guide

NOTES:

PIC18F4XK20 STARTER KIT

USER’S GUIDE

Appendix A. Board Schematics

A.1 INTRODUCTION

This appendix contains the PIC18F4XK20 demonstration board schematics, broken down into 5 sheets, as follows:

FIGURE A-1: PIC18F4XK20 DEMO BOARD SCHEMATIC DIAGRAM (SHEET 1 OF 5)

+3.3V

JP1

Current Sense

0.1 uFC20.1 uF C4

RC7/RX

RC7

RD4

RD5

RD6

RD7

VDD

RB0

RB1

RB2

RB3

+3.3V

TP1 +V

12 pF

RC5/MOSI

RD1

RD3

RC4/MISO

RD2

RC6/TX

RC4

RC5

RD3

RD2

RD1

RC6

PIC18F46K20-I/PT

RB5

RB6

RB7

RB4

131415

161718

RB4

RB5

TP2 GND

RB7

RD0

MCLR

RE3

RC3/SCK

RC2

373635

RC3

RC2

RA1

RA0

RA1

RA0

RC1

OSCO/RA3

RA2

32 kHz

RC0

OSCI/RA2

RE2 RE1 RE0 RA5

RA4

RA3

V VDD

12 pF

33 32 31 30 29 28 27 26 25 24

220K

RC0

RA6/SEE_NCS

RA7/OLED_NCS

RE2 RE1 RE0 RA5/ND/C RA4/NRES

+3.3V

820

ICSP

VDD

GND

ICSPDAT

ICSPCLK

T1G

820

8.2

BZX84B8V2LT1

RA7/OLED_NCS

RA6/SEE_NCS

RC7/RX RC6/TX

RD1 RD3 RD5

RD7

RE1

BZX84B8V2LT1

RE2 RE3

RB7 RB6 RB5 RB4 RB3 RB2 RB1

RB0

RD0 RD2 RD4 RD6

RE0

RC7/RX

RC6/TX

3.9V

1 3 5 7 9

12 14

+3.3V

USRT

GND

RA5/ND/C

RA4/NRES

RA3

6 8

RC5/MOSI

RC4/MISO

RC3/SCK RA0 RA1 RA2

RC0 RC1 RC2

+3.3V

1 uF

PIC18F4XK20 Starter Kit User’s Guide

FIGURE A-2: PIC18F4XK20 DEMO BOARD SCHEMATIC DIAGRAM (SHEET 2 OF 5)

MCP9700-I/LT

Board Schematics

FIGURE A-3: PIC18F4XK20 DEMO BOARD SCHEMATIC DIAGRAM (SHEET 3 OF 5)

VDC

MCP6022

PIC18F4XK20 Starter Kit User’s Guide

FIGURE A-4: PIC18F4XK20 DEMO BOARD SCHEMATIC DIAGRAM (SHEET 4 OF 5)

MCP6022

Board Schematics

FIGURE A-5: PIC18F4XK20 DEMO BOARD SCHEMATIC DIAGRAM (SHEET 5 OF 5)

D1S1

PIC18F4XK20 Starter Kit User’s Guide

NOTES:

PIC18F4XK20 Starter Kit User’s Guide

WORLDWIDE SALES AND SERVICE

AMERICAS

Corporate Office

2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 480-792-7200 Fax: 480-792-7277 Technical Support: http://support.microchip.com Web Address: www.microchip.com

Atlanta

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Tel: 61-2-9868-6733 Fax: 61-2-9868-6755

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Tel: 86-29-8833-7252 Fax: 86-29-8833-7256

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Tel: 86-756-3210040 Fax: 86-756-3210049

ASIA/PACIFIC

India - Bangalore

Tel: 91-80-4182-8400 Fax: 91-80-4182-8422

India - New Delhi

Tel: 91-11-4160-8631 Fax: 91-11-4160-8632

India - Pune

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Tel: 81-45-471- 6166 Fax: 81-45-471-6122

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Singapore

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Tel: 886-7-536-4818 Fax: 886-7-536-4803

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Tel: 886-2-2500-6610 Fax: 886-2-2508-0102

Thailand - Bangkok

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EUROPE

Austria - Wels

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Denmark - Copenhagen

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Tel: 34-91-708-08-90 Fax: 34-91-708-08-91

UK - Wokingham

Tel: 44-118-921-5869 Fax: 44-118-921-5820

01/02/08

MICROCHIP PIC18F4XK20 Technical data

Specifications and Main Features

Frequently Asked Questions

User Manual

Chapter 1. PIC18F4XK20 Starter Kit Overview

Chapter 2. Troubleshooting

Appendix A. Board Schematics

Preface

Chapter 1. PIC18F4XK20 Starter Kit Overview

1.1 OVERVIEW

1.2 HIGHLIGHTS

1.3 PIC18F4XK20 STARTER KIT CONTENTS

1.4 PIC18F4XK20 STARTER KIT LAYOUT

1.4.1 Analog Input Filtering Circuit

1.4.2 PWM Filtering from RC2

1.4.3 PICtail Daughter Board Interface

1.4.4 PICkit Serial Analyzer Connector

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

1.4.6 Temperature Sensor

1.4.7 25LC1024 Serial EEPROM

1.4.8 32.768 kHz Crystal

1.4.9 128x64 OLED

1.5 POWERING THE DEMO BOARD

1.6 QUICK START GUIDE

1.6.1 Downloading Demonstration Software

1.7 PROGRAMMING LESSONS

2.1 INTRODUCTION

2.1.1 The board does not power up.

2.1.2 Microcontroller is not executing code.

2.1.3 The microcontroller will not program.

Chapter 2. Troubleshooting

Appendix A. Board Schematics

A.1 INTRODUCTION

WORLDWIDE SALES AND SERVICE