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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and may be superseded by updates.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,

KEE EELOQ, K LOQ logo, MPLAB, PIC, PICmicro, PICSTART,

PIC32 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.

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 co ng the code protection features ofmmitted to continuously improvi 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)

{ ...

}

PIC18F4XK22 Development Board User’s Guide

DS41618A-page 6  2011 Microchip Technology Inc.

WARRANTY REGISTRATION

Please complete the enclosed Warranty Registration Card and mail it promptly.

Sending in the Warranty Registration Card entitles users to receive new product

updates. Interim software releases are available at the Microchip web site.

RECOMMENDED READING

This user's guide describes how to use the PIC18F4XK22 Development Board. Other

useful documents are listed below. The following Microchip documents are available

and recommended as supplemental reference resources.

PIC18LF46K22 Data Sheet (DS41412)

This data sheet summarizes the features of the PIC18LF46K22. 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.

MCP6021/2/3/4 Data Sheet (DS21685)

This data sheet summarizes the features of the MCP6021/2/3/4. It provides essential

information needed to develop software for these devices. The data sheet can be found

at http://ww1.microchip.com/downloads/en/DeviceDoc/21685d.pdf.

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

 2011 Microchip Technology Inc. DS41618A-page 7

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

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

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® II device programmers and the PICSTART®

Plus and PICkit™ 1 development programmers.

PIC18F4XK22 Development Board User’s Guide

DS41618A-page 8  2011 Microchip Technology Inc.

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 (December 2011)

• Initial Release of this Document.

PIC18F4XK22 DEVELOPMENT BOARD

USER’S GUIDE

 2011 Microchip Technology Inc. DS41618A-page 9

Chapter 1. PIC18F4XK22 Development Board Overview

The PIC18F4XK22 Development Board is a demonstration and development tool

designed for those getting started with microcontrollers or those looking to migrate to

the new PIC18(L)F4XK22/2XK22 family. The board is designed for general purpose

applications and includes a variety of hardware to exercise microcontroller peripherals.

1.1 OVERVIEW

The PIC18(L)F4XK22/2XK22 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.

The hardware included on the board allows for development as well. The microcontroller

that is populated on the board, the PIC18LF46K22, is the superset of the

PIC18F4XK22/2XK22

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.

1.2 HIGHLIGHTS

This chapter discusses the features of the PIC18F4XK22 Development Board. Topics

discussed include:

• PIC18F4XK22 Development Board Contents

• PIC18F4XK22 System Management Layout

• Powering the Demo Board

• Quick Start Guide

• Programming Lessons

1.3 PIC18F4XK22 DEVELOPMENT BOARD CONTENTS

The PIC18F4XK22 Development Board kit includes the following items:

• PIC18F4XK22 Development Board

• PIC18F4XK22 Development Board Quick Start Guide

• On-board PIC18LF46K22 device (pre-loaded with program demonstration)

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 PIC18F4XK22 DEVELOPMENT BOARD LAYOUT

The PIC18F4XK22 Development Board is populated with a PIC18LF46K22 microcon-

troller. In addition, the board is also populated with the following features/components:

• 128x64 Organic LED Display (SPI)

• 32.768 kHz External Oscillator (Timer1)

PIC18F4XK22 Development Board User’s Guide

DS41618A-page 10  2011 Microchip Technology Inc.

• 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 Switch

• 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

• Power Analyzer Header

FIGURE 1-1: DEVELOPMENT BOARD LAYOUT

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.

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 2011 Microchip Technology Inc. DS41618A-page 11

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 +VDD and ground. The header is designed to be compatible with

existing PICtail daughter boards. Visit the Microchip web site to find more details on

PICtail daughter boards.

1.4.4 PICkit™ Serial Analyzer Connector

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 PINOUT

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 PIC18LF46K22 can be programmed and debugged

through these connectors using Microchip In-Circuit Debuggers/Programmers.

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 2 3 4 5 6

TX +5V GND SDA SCL RX

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 VPP does not

exceed programming specifications.

PIC18F4XK22 Development Board User’s Guide

DS41618A-page 12  2011 Microchip Technology Inc.

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 SSD1306.

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 to 12 VDC.

2. Microchip In-Circuit Debuggers/Programmers can be used to provide power at

connector P1 or P3. Do not exceed a voltage of 3.6 VDC or a current of 100 mA

on the board if a debugger/programmer 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 voltage of 3.6 VDC or a current of 100 mA on the board if the PICkit

Serial Analyzer is being used to power the board.

1.6 QUICK START GUIDE

The PIC18F4XK22 Development Board is preloaded with demonstration firmware. The

board

must be configured as described in this section in order to use the demonstration pro-

grams

Board Setup

1. Close jumper JP1 labeled Current MCU, JP4, JP3 labeled Mic Bias and JP2.

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

board.

1.6.1 Downloading Demonstration Software

The PIC18F4XK22 Development Board software package can be downloaded from

www.microchip.com. It contains demonstration programs and hands-on programming

lessons. Using a Microchip In-Circuit Debugger/Programmer, demonstration firmware

can be downloaded onto the demo board and the board can be powered.

1. Download the PIC18F4XK22 Development Board software package from

www.microchip.com/8bit.

2. Unzip the software package.

3. Connect a Microchip In-Circuit Debugger/Programmer to the development board

connector P1 or P3.

4. Start the MPLAB IDE software.

5. Click File > Import.

PIC18F4XK22 Development Board User’s Guide

DS41618A-page 14  2011 Microchip Technology Inc.

8. Click Programmer > Select Programmer and select your programmer:

FIGURE 1-5: SELECTING THE PROGRAMMER

9. To program, click Programmer > Program.

10. Click Programmer > Release from Reset to release the MCLR to run the

program.

1.7 PROGRAMMING LESSONS

The PIC18F4XK22 software package includes a variety of programming lessons

designed for use with the demonstration board. Download the PIC18F4XK22 software

package from www.microchip.com/8bit and browse to the Lessons directory.

Product specificaties

Merk:	Microchip
Categorie:	Niet gecategoriseerd
Model:	PIC18F46K22

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