MICROCHIP PICDEM.net User Guide

PICDEM.net™ 2

Internet/Ethernet

Development Board

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in this publication regarding device applications and the like is provided only for your convenience and may be superseded by updates.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

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

AmpLab, FilterLab, Linear Active Thermistor, Migratable Memory, 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, ECAN, ECONOMONITOR, FanSense, FlexROM, fuzzyLAB, In-Circuit Serial Programming, ICSP, ICEPIC, Mindi, MiWi, MPASM, MPLAB Certified logo, MPLIB, MPLINK, PICkit, PICDEM, PICDEM.net, PICLAB, PICtail, PowerCal, PowerInfo, PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, Smart Serial, SmartTel, 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

PICDEM.net™ 2 DEVELOPMENT

BOARD USER’S GUIDE

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

Chapter 1. Introduction to the PICDEM.net 2 Development Board

1.1 Introduction ..................................................................................................... 7

1.2 Highlights ........................................................................................................ 7

1.3 The Development Kit: What’s In The Box ...................................................... 7

1.4 The PICDEM.net 2 Development Board ........................................................ 8

1.5 The Development Kit CD .............................................................................. 10

Chapter 2. Getting Started with the PICDEM.net 2 Development Board

2.1 Highlights ...................................................................................................... 11

2.2 Network Precautions: Before You Start ........................................................ 11

2.3 Using PICDEM.net 2 Development Board with a Local Host System .......... 12

2.4 Connecting the PICDEM.net 2 Development Board .................................... 13

2.5 Configuring the PICDEM.net 2 Development Board .................................... 16

2.6 Establishing Communications ...................................................................... 19

Chapter 3. Using the Microchip TCP/IP Stack Demo Application

3.1 Highlights ...................................................................................................... 21

3.2 Overview ...................................................................................................... 21

3.3 The Source Code ......................................................................................... 21

3.4 Experimenting With Demo Application Firmware ......................................... 22

3.5 Experimenting with the Demo Web Site ....................................................... 23

Chapter 4. Reconfiguring and Restoring the PICDEM.net 2 Development Board

4.1 Highlights ...................................................................................................... 25

4.2 Reconfiguring the PICDEM.net 2 Development Board Hardware ................ 25

4.3 Reconfiguring The PICDEM.net 2 Development Board Firmware ............... 28

4.4 Reprogramming and Restoring the Application Firmware ............................ 31

Chapter 5. Troubleshooting

5.1 Highlights ...................................................................................................... 33

5.2 Common Issues ........................................................................................... 33

Appendix A. PICDEM.net 2 Development Board Schematics, Rev. 4 .................... 37

Index ............................................................................................................................. 43

Worldwide Sales and Service .................................................................................... 46

PICDEM.net™ 2 Development Board User’s Guide

NOTES:

PICDEM.net™ 2 DEVELOPMENT

BOARD 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.

INTRODUCTION

This chapter contains general information that will be useful to know before using the 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

IDE on-line help.

DOCUMENT LAYOUT

This document describes how to use the PICDEM.net 2 Development Board as a development tool to emulate and debug firmware on a target board. The manual layout is as follows:

• Chapter 1. “Introduction to the PICDEM.net 2 Development Board” – Describes

what the PICDEM.net 2 Development Board is and what features are available on the board.

• Chapter 2. “Getting Started with the PICDEM.net 2 Development Board” –

Describes how to connect and begin to use the PICDEM.net 2 Development Board.

• Chapter 3. “Using the Microchip TCP/IP Stack Demo Application” – Provides

a brief overview of the TCP/IP Stack Demo Application firmware and source code, and how to modify the application and the demo web site.

• Chapter 4. “Reconfiguring and Restoring the PICDEM.net 2 Development Board” – Provides instructions on changing hardware configuration, loading a web page into the on-board EEPROM and reconfiguring the network settings.

• Chapter 5. “Troubleshooting” – Provides information on solving common problems.

• Appendix A. “PICDEM.net 2 Development Board Schematics, Rev. 4” – Provides schematic diagrams of the Development Board.

PICDEM.net™ 2 Development Board 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

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

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

“Save project before build”

any valid filename

[options]

errorlevel {0|1}

var_name...]

IDE User’s Guide”

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 on the Microchip web site.

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, listing 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 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®

operating system 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 development programmer and the PICkit

C18 and MPLAB C30 C compilers; MPASM™

II device programmers, the PICSTART® Plus

1 starter kit.

CUSTOMER SUPPORT

Users of Microchip products can receive assistance through several channels:

• Distributor or Representative

• Local Sales Office

• Field Application Engineer (FAE)

• Technical Support

• Development Systems Information Line

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 (September 2006)

• Initial Release of this Document.

Revision B (June 2007)

Preface

• Edits to Section 1.3 “The Development Kit: What’s In The Box”.

PICDEM.net™ 2 Development Board User’s Guide

NOTES:

Chapter 1. Introduction to the PICDEM.net 2

1.1 INTRODUCTION

The PICDEM.net 2 Development Board was created to allow developers to examine Microchip’s latest available technology in embedded Ethernet and Internet solutions. Using the free Microchip TCP/IP Stack source code, developers can experiment with the preprogrammed Microchip TCP/IP Demo Application and learn how to integrate connectivity into their applications.

1.2 HIGHLIGHTS

This chapter covers the following:

• The Development Kit: What’s In The Box

• The PICDEM.net 2 Development Board

• The Development Kit CD

PICDEM.net™ 2 DEVELOPMENT

BOARD USER’S GUIDE

Development Board

1.3 THE DEVELOPMENT KIT: WHAT’S IN THE BOX

Your Development Kit contains the following items:

1. The PICDEM.net 2 Development Board

2. A standard CAT5 “straight-through” network cable for networking the board

3. A CAT5 “crossover” network cable for networking the board directly to a

computer

4. The “PICDEM.net™ 2 Development Kit” CD-ROM

5. A warranty registration card

PICDEM.net™ 2 Development Board User’s Guide

1.4 THE PICDEM.net 2 DEVELOPMENT BOARD

The PICDEM.net 2 Development Board has all the features to begin developing Internet connectivity applications over an Ethernet connection. The preprogrammed firmware allows users to begin evaluating the board right out of the box with no additional programming or configuration. All that is required to begin exploring the board is a network-enabled computer with an Ethernet adapter and Internet browser software. (See Chapter 2. “Getting Started with the PICDEM.net 2 Development

Board” for more specific information.)

FIGURE 1-1: PICDEM.net™ 2 DEVELOPMENT BOARD LAYOUT

PICtail™ Daughter

Board

PICDEM.ne t™ 2

Development Board

Features on the PICDEM.net 2 Development Board include:

1. MICROCONTROLLER: A Microchip PIC18F97J60 microcontroller with built-in

Ethernet controller and transceiver is directly installed on the board (U3). The device is clocked at 25 MHz and has been preprogrammed with the Demo Application firmware using the Microchip TCP/IP Stack. Jumpers, JP15 and JP3, can be used to measure the current consumption of the microcontroller.

2. ETHERNET CONTROLLER: In addition to the PIC18F97J60, the PICDEM.net 2

Development Board also features a Microchip ENC28J60 stand-alone Ethernet controller. This device provides Ethernet connectivity for microcontroller-based applications using a standard SPI interface.

3. MEMORY: A Microchip 25LC256 serial EEPROM (U4) provides 256 Kbits

(32 Kbytes) of storage for both web pages and nonvolatile configuration options. The 25LC256 is programmable via an SPI interface.

4. LCD DISPLAY: A two-line by 16-character dot matrix display shows diagnostic

and error messages with the factory programmed firmware. It may be used for other applications with appropriate reprogramming.

Introduction to the PICDEM.net 2 Development Board

5. OPTIONAL EXTERNAL LCD CONNECTOR: Space is provided on the board for

the installation of a 30-pin, bottom contact FFC edge connector (Hirose FH12-30S-0.5SH or equivalent). This will allow the use of an external LCD character display module (such as one of the Optrex™ F-51320 series) to the board via a ribbon cable. Note that using an external LCD module will require appropriate changes to the application code, as well as the use of a ribbon cable compatible with the connector.

6. TEMPERATURE SENSOR: This analog temperature sensor, a Microchip

TC1047 (U1), is connected to an analog I/O pin of the microcontroller. It can be disconnected by jumper.

7. USER-DEFINED LEDs: Eight LEDs are driven by digital I/O pins of the controller

(PORTJ) and may be used to simulate a digital output to an embedded device. They may also be enabled or disabled by jumper selection on the board.

8. USER-DEFINED PUSH BUTTONS: These switches are connected to digital I/O

pins on the microcontroller (PORTB<3:0>) and may be used to simulate a digital input in an embedded application.

9. USER-DEFINED POTENTIOMETER: One 10 kOhm potentiometer is connected

to an analog I/O pin of the microcontroller. It can be used to simulate an analog input in an embedded application.

10. RESET PUSH BUTTON: This switch is tied to the MCLR

and is used to reset the board.

11. RJ-45 (10Base-T) MODULAR CONNECTORS: The PICDEM.net 2

Development Board is outfitted with two Integrated Connector Modules (ICMs), one each for the PIC18F97J60 and ENC28J60. These ICMs provide the modular jack, as well as the necessary transformers, EMI suppression and status LEDs, for Ethernet connectivity.

Each ICM has its own ACTIVITY and LINK LEDs on the left and right sides of the ICM, respectively (as viewed from the top). These show if an Ethernet application is transmitting or receiving a packet, and if the Ethernet connection is active. The LEDs for the PIC18F97J60 (on J1) can be disconnected by jumpers if the I/O ports, RA0 and RA1, are to be used for another purpose.

12. RJ-11 (Six-Wire) MODULAR CONNECTOR: This allows the Development

Board to be connected to Microchip MPLAB ICD 2 systems for in-system programming, as well as advanced application debugging.

13. SERIAL PORT: The PICDEM.net 2 Development Board includes an RS-232 port

with a DB9 connector (P1) and appropriate level-shifting hardware (U5). This allows for the configuration of the board’s IP and Ethernet address through a standard serial connection. This interface also allows users to download new web pages to the EEPROM.

14. I/O AND PICtail™ DAUGHTER BOARD ACCESS: A pair of female risers (J5

and J6) allow direct access to five of the microcontroller’s I/O ports (PORTA through PORTE). The even pins of J5 also serve as a standard interface between the PICDEM.net 2 Development Board and any of Microchip’s PICtail daughter board series.

15. PROTOTYPE AREA: A 9x20 grid with through-holes is provided for users to

breadboard additional circuitry for development. Three SOT-23 pads and a SOIC-28 footprint are also provided for surface mounting common components. Connections are provided for +3.3 V

DC, +5 VDC, +9 VDC and ground.

16. ON-BOARD POWER: Two on-board regulators provide separate 5 V

3.3 V

DC at 500 mA common current, from the 9 VDC supplied at J7.

17. POWER-ON LED: This LED (D9) shows the board is powered up.

pin on the controller,

DC and

PICDEM.net™ 2 Development Board User’s Guide

18. ETHERNET ID STICKERS (TRACE SIDE): The numbers on the two stickers

are used to form the unique Media Access Control (MAC) addresses used by the Ethernet transceivers to identify and filter packets. The number is the base 10 version of the last 6 hexadecimal digits of the 12-digit MAC address. For example, the sticker number, “12345”, represents 003039h in the MAC address. One of these is assigned to the PIC18F97J60 and the other to the ENC28J60. These MAC addresses are provided for evaluation purposes; both addresses can be changed in software.

1.5 THE DEVELOPMENT KIT CD

The “PICDEM.net 2 Development Kit” CD contains:

• The complete source code for the free Microchip TCP/IP Stack Demo Application. To install the source code and necessary support files on your computer, run the installer file, MCHPTCPStack 3.75.exe (available when this manual was written; your kit may have a newer version). If you are restoring the Demo Application firmware and/or the demo web site as originally shipped from the factory, use the appropriate files as described in Section 3.3 “The Source Code”.

• Other example applications for use with PIC18F97J60 and ENC28J60 devices.

• The complete selection of technical documentation for Microchip’s connectivity solution, located in the Doc folder. Included are the complete data sheets for the PIC18F97J60 microcontroller and ENC28J60 Ethernet controller. Also of note, in this folder is the Microchip Application Note AN833, “The Microchip TCP/IP Stack” (DS00833) which is referred to throughout this manual.

• This manual, in Adobe

The most up-to-date information on demo solutions, as well as the latest version of the free Microchip TCP/IP Stack, are available on the Internet Solutions page of the Design Center at the Microchip web site:

http://www.microchip.com/Ethernet

http://www.microchip.com/tcpip

Acrobat® format.

PICDEM.net™ 2 DEVELOPMENT

BOARD USER’S GUIDE

Chapter 2. Getting Started with the PICDEM.net 2

Development Board

2.1 HIGHLIGHTS

This chapter will cover the following topics:

• Network Precautions: Before You Start

• Using PICDEM.net 2 Development Board with a Local Host System

• Connecting the PICDEM.net 2 Development Board

• Configuring the PICDEM.net 2 Development Board

• Establishing Communications

2.2 NETWORK PRECAUTIONS: BEFORE YOU START

The PICDEM.net 2 Development Board provided in your kit is designed to demonstrate the possibilities of networking with embedded Microchip controllers over Ethernet and the Internet. As with any experimental system, however, some precautions are in order before you start.

Whenever new hardware or software is added to a network, it is always advisable to create a separate test network that is isolated from your LAN. This allows testing the new system in a controlled environment and minimizes the possibilities of network interference from the new equipment. The major sources of potential interference include:

• Addressing – Each device on the network must have a unique address. If

Dynamic Host Configuration Protocol (DHCP) is in use, the PICDEM.net 2 Development Board will automatically acquire a valid IP address. If DHCP is not used, or a fixed address is required, adding the board to the network without assigning an address may create network conflicts.

• Traffic Levels – While the on-board Ethernet controller will filter out unwanted

messages, a highly loaded network with many broadcast messages may place a sizable burden on the Development Board.

• Data Security – Although it is unlikely that the addition of a single device will

compromise the integrity or privacy of sensitive information, it is always a good idea to perform extensive testing with new equipment before adding it to a secure network.

• Experimentation – Even as a simple microcontroller-based device, the

Development Board is capable of generating a high volume of network traffic which may severely disrupt normal network operations.

+ 35 hidden pages

MICROCHIP PICDEM.net User Guide

Table of Contents

Preface

INTRODUCTION

DOCUMENT LAYOUT

CONVENTIONS USED IN THIS GUIDE

DOCUMENTATION CONVENTIONS

WARRANTY REGISTRATION

RECOMMENDED READING

THE MICROCHIP WEB SITE

DEVELOPMENT SYSTEMS CUSTOMER CHANGE NOTIFICATION SERVICE

CUSTOMER SUPPORT

DOCUMENT REVISION HISTORY

1.1 INTRODUCTION

1.2 HIGHLIGHTS

1.3 THE DEVELOPMENT KIT: WHAT’S IN THE BOX

1.4 THE PICDEM.net 2 DEVELOPMENT BOARD

FIGURE 1-1: PICDEM.net™ 2 DEVELOPMENT BOARD LAYOUT

1.5 THE DEVELOPMENT KIT CD

2.1 HIGHLIGHTS

2.2 NETWORK PRECAUTIONS: BEFORE YOU START