51184d
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51184d

Course: ECE 354, Fall 2009

School: UMass (Amherst)

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MPLAB ICD USER'S GUIDE Information contained in this publication regarding device applications and the like is intended by way of suggestion only. No representation or warranty is given and no liability is assumed by Microchip Technology Incorporated with respect to the accuracy or use of such information. Use of Microchip's products as critical components in life support systems is not authorized except with...

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ICD MPLAB USER'S GUIDE Information contained in this publication regarding device applications and the like is intended by way of suggestion only. No representation or warranty is given and no liability is assumed by Microchip Technology Incorporated with respect to the accuracy or use of such information. Use of Microchip's products as critical components in life support systems is not authorized except with express written approval by Microchip. 2000 Microchip Technology Incorporated. All rights reserved. The Microchip logo and name, PIC, PICmicro, PICMASTER, PICSTART, PRO MATE, KEELOQ, and MPLAB are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. In-Circuit Serial Programming, ICSP, MPASM, MPLINK, MPLIB and PICDEM are trademarks of Microchip Technology in the U.S.A. and other countries. Intel and Pentium are registered trademarks of Intel Corporation. Microsoft, Internet Explorer, Windows, Windows NT, Windows 2000, and Intellimouse are registered trademarks of Microsoft Corporation in the United States and/or other countries. Netscape is a registered trademark of Netscape Communications Corporation in the United States and/or other countries. All product/company trademarks mentioned herein are the property of their respective companies. 2000 Microchip Technology Inc. DS51184D MPLAB ICD User's Guide DS51184D 2000 Microchip Technology Inc. MPLAB ICD USER'S GUIDE Table of Contents Preface Introduction ................................................................................................ 1 Highlights ................................................................................................... 1 About This Guide ....................................................................................... 1 Warranty Registration ................................................................................ 3 Recommended Reading ............................................................................ 4 Troubleshooting ......................................................................................... 4 The Microchip Internet Web Site ............................................................... 5 Development Systems Customer Notification Service .............................. 6 Customer Support ..................................................................................... 8 Chapter 1. Overview and Installation 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 Introduction ..................................................................................... 9 Highlights ........................................................................................ 9 What MPLAB ICD Is ....................................................................... 9 Resources Used By MPLAB ICD .................................................. 10 MPLAB ICD System Components ................................................ 11 How MPLAB ICD Helps You ......................................................... 14 Installing MPLAB ICD Hardware ................................................... 15 Applying Power to the System Components ................................ 17 Installing MPLAB IDE Software .................................................... 17 Chapter 2. Tutorial PIC16F877 2.1 2.2 2.3 2.4 2.5 2.6 2.7 Introduction ................................................................................... 19 Highlights ...................................................................................... 19 Running MPLAB IDE .................................................................... 20 Creating a Hex File for Debugging ............................................... 21 Setting Up MPLAB ICD ................................................................. 29 Setting Programming and Debugging Options ............................. 30 Programming the PIC16F877 ....................................................... 32 2000 Microchip Technology Inc. DS51184D-page i MPLAB ICD User's Guide 2.8 2.9 Setting Up the Demo Board ..........................................................33 Running Tut877 .............................................................................33 2.10 Debugging Tut877 .........................................................................34 2.11 Tut877 Main Routine .....................................................................39 2.12 Tut877 Corrected Source Code ....................................................40 Chapter 3. General Setup 3.1 3.2 3.3 3.4 3.5 3.6 3.7 Introduction ...................................................................................43 Highlights ......................................................................................43 Running MPLAB IDE .....................................................................43 Setting Up the Development Mode ...............................................44 Setting Up the MPLAB ICD Dialog ................................................45 Setting Up the ICD Options Dialog ................................................47 Using MPLAB Projects ..................................................................51 Chapter 4. Basic Functions 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 Introduction ...................................................................................53 Highlights ......................................................................................53 MPLAB ICD Operations ................................................................53 Program Execution ........................................................................54 Breakpoints ...................................................................................55 Modifying Functions ......................................................................55 Loading a Hex File for Debugging .................................................56 Upgrading the MPLAB ICD Operating System (Firmware) ...........56 Chapter 5. Troubleshooting 5.1 5.2 5.3 Introduction ...................................................................................57 Highlights ......................................................................................57 Common Problems .......................................................................57 Appendix A. Hardware Specifications A.1 A.2 A.3 Introduction ...................................................................................61 MPLAB ICD Module and Header ..................................................61 MPLAB ICD Demo Board ..............................................................68 DS51184D-page ii 2000 Microchip Technology Inc. Table of Contents Glossary Introduction .............................................................................................. 75 Highlights ................................................................................................. 75 Terms ...................................................................................................... 75 Index .........................................................................................................93 Worldwide Sales and Service .................................................................96 2000 Microchip Technology Inc. DS51184D-page iii MPLAB ICD User's Guide DS51184D-page iv 2000 Microchip Technology Inc. MPLAB ICD USER'S GUIDE Preface Introduction This first chapter contains general information that will be useful to know before using MPLAB ICD. Highlights The information you will garner from this chapter: About this Guide Warranty Registration Recommended Reading Troubleshooting The Microchip Internet Web Site Development Systems Customer Notification Service Customer Support About This Guide Document Layout This document describes how to use MPLAB ICD as a development tool to debug firmware on a target board. The manual layout is as follows: General Information This section. Chapter 1: Overview and Installation Describes what MPLAB ICD is, how it works and how to install MPLAB ICD hardware and MPLAB IDE software and establish communications. Chapter 2: Tutorial PIC16F877 Shows you how to develop and debug an application using MPLAB IDE Projects and MPLAB ICD. Chapter 3: General Set Up Tells you how to get MPLAB ICD up and running. Chapter 4: Basic Functions Describes the basic functions of MPLAB ICD. Chapter 5: Troubleshooting Provides information on solving common problems. Appendix A: Hardware Specifications Provides a technical description of the MPLAB ICD Header, MPLAB ICD Module, and MPLAB ICD Demo Board hardware. 2000 Microchip Technology Inc. DS51184D-page 1 MPLAB ICD User's Guide Glossary A glossary of terms used in this guide. Index Cross-reference listing of terms, features, and sections of this document. Worldwide Sales and Service A listing of Microchip Technology Sales and Service locations and telephone numbers worldwide. Conventions Used in this Guide This manual uses the following documentation conventions: Table: Documentation Conventions Description Code (Courier font): Plain characters Sample code Filenames and paths Optional arguments #define START c:\autoexec.bat <label>, <exp> MPASMWIN [main.asm] errorlevel {0|1} Represents Examples Angle brackets: < > Variables Square brackets [ ] Curly brackets and Choice of mutually exclusive pipe character: { | } arguments An OR selection Lower case characters in quotes Ellipses... Type of data "filename" Used to imply (but not show) additional text that is not relevant to the example A hexadecimal number where n is a hexadecimal digit A variable argument; it can be either a type of data (in lower case characters) or a specific example (in uppercase characters). list ["list_option... , "list_option"] 0xFFFF, 0x007A char isascii (char, ch); 0xnnn Italic characters Interface (Helvetica font): Underlined, italic A menu selection from the text with right arrow menu bar Bold characters A window or dialog button to click File > Save OK, Cancel <Tab>, <Ctrl-C> Characters in angle A key on the keyboard brackets < > DS51184D-page 2 2000 Microchip Technology Inc. Preface Table: Documentation Conventions (Continued) Description Documents (Helvetica font): Italic characters Referenced books Represents Examples MPLAB IDE User's Guide Documentation Updates All documentation becomes dated, and this user's guide is no exception. Since MPLAB IDE and other Microchip tools are constantly evolving to meet customer needs, some MPLAB IDE dialogs and/or tool descriptions may differ from those in this document. Please refer to our web site at www.microchip.com to obtain the latest documentation available. Documentation Numbering Conventions Documents are numbered with a "DS" number. The 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 A = = The document number. The revision level of the document. Warranty Registration Please complete the enclosed Warranty Registration Card and mail it promptly. Sending in your Warranty Registration Card entitles you to receive new product updates. Interim software releases are available at the Microchip web site. 2000 Microchip Technology Inc. DS51184D-page 3 MPLAB ICD User's Guide Recommended Reading This user's guide describes how to use MPLAB ICD. The user may also find the data sheets for specific microcontroller devices informative in developing firmware. README.ICD For the latest information on using MPLAB ICD, read the README.ICD file (ASCII text file) included with the MPLAB ICD software. The README.ICD file contains update information that may not be included in this document. README.XXX For the latest information on other Microchip tools (MPLAB, MPASMTM, etc.), read the associated README files (ASCII text file) included with the MPLAB IDE software. MPLAB IDE User's Guide (DS51025) Comprehensive guide that describes installation and features of Microchip's MPLAB Integrated Development Environment, including the editor and simulator functions in the MPLAB IDE environment. MPASMTM User's Guide with MPLINKTM and MPLIBTM (DS33014) This user's guide describes how to use the Microchip PICmicro assembler (MPASM), the linker (MPLINK), and the librarian (MPLIB). Microchip Technology Library CD-ROM (DS00161) This CD-ROM contains comprehensive application notes, data sheets, and technical briefs for all of Microchip products. To obtain this CD-ROM, contact the nearest Microchip Sales and Service location (see back page). Embedded Control Handbook Vol.1 & 2 and the Embedded Control Update 2000 (DS00092, DS00167, and DS00711) These handbooks contain a wealth of information about microcontroller applications. To obtain these documents, contact the nearest Microchip Sales and Service location (see back page). The application notes described in these manuals are also obtainable from Microchip Sales and Service locations or from the Microchip web site (http://www.microchip.com). Microsoft Windows Manuals This manual assumes that users are familiar with their Microsoft Windows operating system. Many excellent references exist, and should be consulted for general operation of Windows. Troubleshooting See Chapter 5 for information on common problems. DS51184D-page 4 2000 Microchip Technology Inc. Preface The Microchip Internet Web Site Microchip provides on-line support on the Microchip World Wide Web (WWW) site. The web site is used by Microchip as a means to make files and information easily available to customers. To view the site, the user must have access to the Internet and a web browser, such as Netscape Communicator or Microsoft Internet Explorer. Files are also available for FTP download from our FTP site. Connecting to the Microchip Internet Web Site The Microchip web site is available by using your favorite Internet browser to connect to: http://www.microchip.com The file transfer site is available by using an FTP service to connect to: ftp://ftp.microchip.com The web site and file transfer site provide a variety of services. Users may download files for the latest Development Tools, Data Sheets, Application Notes, User's Guides, Articles, and Sample Programs. A variety of Microchip specific business information is also available, including listings of Microchip sales offices, distributors and factory representatives. Other data available for consideration is: Latest Microchip Press Releases Technical Support Section with Frequently Asked Questions Design Tips Device Errata Job Postings Microchip Consultant Program Member Listing Links to other useful web sites related to Microchip Products Conferences for products, Development Systems, technical information Listing of seminars and events 2000 Microchip Technology Inc. DS51184D-page 5 MPLAB ICD User's Guide Development Systems Customer Notification Service Microchip provides a customer notification service to help our customers keep current on Microchip products with the least amount of effort. Once you subscribe to one of our list servers, you will receive email notification whenever we change, update, revise or have errata related to that product family or development tool. See the Microchip web site at www.microchip.com. The Development Systems list names are: Compilers Emulators Programmers MPLAB Otools (Other Tools) Once you have determined the names of the lists that you are interested in, you can subscribe by sending a message to: listserv@mail.microchip.com with the following as the body: subscribe <listname> yourname Here is an example: subscribe mplab John Doe To UNSUBSCRIBE from these lists, send a message to: listserv@mail.microchip.com with the following as the body: unsubscribe <listname> yourname Here is an example: unsubscribe mplab John Doe The following sections provide descriptions of the available Development Systems lists. Compilers The latest information on Microchip C compilers, Linkers and Assemblers. These include MPLAB C17, MPLAB C18, MPLINK object linker, MPASM Assember, as well as the Librarian, MPLIB for MPLINK object linker. To SUBSCRIBE to this list, send a message to: listserv@mail.microchip.com with the following as the body: subscribe compilers yourname DS51184D-page 6 2000 Microchip Technology Inc. Preface Emulators The latest information on Microchip In-Circuit Emulators. These include MPLAB ICE and PICMASTER emulators. To SUBSCRIBE to this list, send a message to: listserv@mail.microchip.com with the following as the body: subscribe emulators yourname Programmers The latest information on Microchip PICmicro microcontroller (MCU) device programmers. These include PRO MATE II and PICSTART Plus programmers. To SUBSCRIBE to this list, send a message to: listserv@mail.microchip.com with the following as the body: subscribe programmers yourname MPLAB The latest information on Microchip MPLAB IDE, the Windows Integrated Development Environment for development systems tools. This list is focused on MPLAB IDE, MPLAB SIM, MPLAB IDE Project Manager and general editing and debugging features. For specific information on MPLAB IDE compilers, linkers and assemblers, subscribe to the COMPILERS list. For specific information on MPLAB IDE emulators, subscribe to the EMULATORS list. For specific information on MPLAB IDE device programmers, please subscribe to the PROGRAMMERS list. To SUBSCRIBE to this list, send a message to: listserv@mail.microchip.com with the following as the body: subscribe mplab yourname Otools (Other Tools) The latest information on other development system tools provided by Microchip. For specific information on MPLAB IDE and its integrated tools refer to the other mail lists. To SUBSCRIBE to this list, send a message to: listserv@mail.microchip.com with the following as the body: subscribe otools yourname 2000 Microchip Technology Inc. DS51184D-page 7 MPLAB ICD User's Guide Customer Support Users of Microchip products can receive assistance through several channels: Distributor or Representative Local Sales Office Field Application Engineer (FAE) Corporate Applications Engineer (CAE) Hotline Customers should call their distributor, representative or field application engineer (FAE) for support. Local sales offices are also available to help customers. See the back cover for a listing of sales offices and locations. Corporate applications engineers (CAEs) may be contacted at (480) 792-7627. In addition, there is a Systems Information and Upgrade Line. This line provides system users a listing of the latest versions of all of Microchip's development systems software products. Plus, this line provides information on how customers can receive any currently available upgrade kits. The Hotline Numbers are: 1-800-755-2345 for U.S. and most of Canada, and 1-480-792-7302 for the rest of the world. DS51184D-page 8 2000 Microchip Technology Inc. MPLAB ICD USER'S GUIDE Chapter 1. Overview and Installation 1.1 Introduction This section gives you a preview of the MPLAB ICD (In-Circuit Debugger) features and functions, as well as its hardware and software elements. 1.2 Highlights Topics covered in this chapter: What MPLAB ICD Is Resources Used By MPLAB ICD MPLAB ICD System Components How MPLAB ICD Helps You MPLAB ICD Kit Components Installing MPLAB ICD Hardware Applying Power to the System Components Installing MPLAB IDE Software 1.3 What MPLAB ICD Is MPLAB ICD utilizes the In-Circuit Debugging capability of the PIC16F87X and Microchip's In-Circuit Serial ProgrammingTM (ICSPTM) protocol to both program and act as an in-circuit debugger for PIC16F87X devices. It operates under MPLAB IDE, connects to an application, and runs like the PIC16F87X microcontroller in the design. MPLAB ICD is intended to be used as an evaluation and debugging aid in a laboratory environment. The MPLAB ICD offers these features: Real-time and single-step code execution Breakpoint In-circuit debugging Built-in programming 3.0V to 5.5V operating range Operation from voltage (VDD) supplied by the target application Operating frequencies from 32 kHz to 20 MHz Source level and symbolic debugging MPLAB IDE user interface Compatibility with Microsoft Windows 3.X, Windows 95/98, Windows NT, and Windows 2000 RS-232 Interface 2000 Microchip Technology Inc. DS51184D-page 9 MPLAB ICD User's Guide 1.4 Resources Used By MPLAB ICD Due to the built-in in-circuit debugging capability of the PIC16F87X and ICSP function offered by the debugger, the MPLAB ICD uses the following on-chip resources: MCLR/VPP is shared for programming Low-voltage ICSP programming is disabled Note: Low Voltage Programming is not supported by MPLAB ICD. MPLAB ICD requires you to disable low voltage programming while in Debug mode. RB6 and RB7 reserved for programming and in-circuit debugging Six or seven general purpose file registers are reserved for debug monitor (see below) First program memory location (address 0x0000) must be a NOP instruction The last 256 or 288 words of program memory area are reserved for Debug Code (depending on device, see below) One stack level is not available Data and Program Memory Used by MPLAB ICD The MPLAB ICD uses the following file register and program memory locations in the PIC16F87X target device: Processor PIC16F870/871/872 PIC16F873/874 PIC16F876/877 Note: File Registers Used 0x70, 0x0BB-0x0BF 0x6D,0x16D, 0x0EB0x0F0, 0x1EB-0x1F0 0x70, 0x1EB-0x1EF Program Memory Used 0x06E0-0x07FF 0x0EE0-0x0FFF 0x1F00-0x1FFF If you have an MPLAB ICD firmware version older than 2.00, you must contact your sales office to obtain an MPLAB ICD firmware upgrade in order to use the MPLAB ICD with a PIC16F87X other than the PIC16F876/877. DS51184D-page 10 2000 Microchip Technology Inc. Overview and Installation 1.5 MPLAB ICD System Components There are two versions of MPLAB ICD. The MPLAB ICD Evaluation Kit (DV164001) and the MPLAB ICD Module (DV164002). The MPLAB ICD Evaluation Kit (DV164001) includes the items listed below (Figure 1.1). The MPLAB ICD Module (DV164002) contains the same items except for items 1, 3 and 5, which are not included. The MPLAB ICD Header The MPLAB ICD Module The MPLAB ICD Demo Board RS-232 cable 40-pin DIP and 28-pin SDIP connection sockets 9-inch 6-conductor modular cable CD with complete MPLAB IDE software and documentation Manuals: - MPLAB ICD User's Guide (this document) - MPLAB IDE User's Guide (not shown) - MPASM with MPLINK and MPLIB User's Guide (not shown) 9. A Warranty Registration card (not shown) 1. 2. 3. 4. 5. 6. 7. 8. 8 5 7 3 4 6 2 1 Figure 1.1: MPLAB ICD Evaluation Kit Components 2000 Microchip Technology Inc. DS51184D-page 11 MPLAB ICD User's Guide RS-232 To PC 1 MPLAB ICD Module To Header or Demo/Target Board MPLAB ICD Header To Module 2 MPLAB ICD DEMO BOARD Power To Module 3 MPLAB ICD Demo Board Figure 1.2: MPLAB ICD System Components In addition to the included components, you will need a power supply to power the MPLAB ICD Demo Board or your target application. Power can be supplied by a PICSTART Plus power supply (part AC162039) connected to the MPLAB ICD Demo Board or by your target application. For more information, refer to Section A.3. System Configurations There are two possible MPLAB ICD system configurations: Connect the PC and the MPLAB ICD Module. Connect the MPLAB ICD Module and the MPLAB ICD Header. Plug the MPLAB ICD Header into the socket on the MPLAB ICD Demo Board or your target application. This configuration only applies if you have the MPLAB ICD Evaluation Kit. Connect the PC and the MPLAB ICD Module. Connect the MPLAB ICD Module and the MPLAB ICD Demo Board (if you have the MPLAB ICD Evaluation Kit) or your target application. Plug a PIC16F87X device into the socket on the MPLAB ICD Demo Board or your target application. (The PIC16C87X may be soldered directly onto the target board.) DS51184D-page 12 2000 Microchip Technology Inc. Overview and Installation 1.5.1 MPLAB ICD Module The MPLAB ICD Module contains all debugging, programming, and control logic. It is connected to the PC's serial port via a 9-pin serial cable and to the MPLAB ICD Demo Board or target application using a 6-wire modular cable. The application board must have a 6-wire modular connection (shown as item 12 in Section 1.5.3) unless you have the MPLAB ICD Evaluation Kit, in which case the MPLAB ICD Module can be connected to the MPLAB ICD Header and then the MPLAB ICD Header plugged into a socket on the MPLAB ICD Demo Board or target application. The MPLAB ICD Module contains the firmware to provide serial communications to the PC, to drive the MPLAB ICD communications to the Demo Board/target board (or to the MPLAB ICD Header), and to program a target PIC16F87X using ICSP, all from the MPLAB IDE. The MPLAB ICD Module is powered from the MPLAB ICD Demo Board or the target application and requires 70 mA (max) in addition to what the target consumes. The modular cable connects to the MPLAB ICD Header or the target application with the appropriate connections to the PIC16F87X to allow incircuit emulation of QFP and DIE parts as described in Section 1.7.2. 1.5.2 MPLAB ICD Header The MPLAB ICD Header, included only in the MPLAB ICD Evaluation Kit, provides a means of connecting the MPLAB ICD Module to a target board that does not incorporate a 6-wire modular connection into its design. The MPLAB ICD Module connects to the MPLAB ICD Header via a 9-inch modular cable. For in-circuit emulation, a 40-pin PIC16F87X needs to be plugged into the MPLAB ICD Header, which then plugs into a 28-pin or 40-pin PIC16F87X DIP socket on the MPLAB ICD Demo Board or target application as described in Section 1.7.1. The MPLAB ICD Header is powered by the Demo Board/target board, from a 3.0V to 5.5V source. 1.5.3 MPLAB ICD Demo Board The MPLAB ICD Demo Board, included only in the MPLAB ICD Evaluation Kit, is provided for demonstration and evaluation of the PIC16F87X without a target application board. It can be connected to the MPLAB-ICD Module directly or via the MPLAB ICD Header. The PIC16F877 can be unplugged from the MPLAB ICD Header and plugged directly into the MPLAB ICD Demo Board for stand-alone operation. The MPLAB ICD Demo Board (Figure 1.3) has the following hardware features: 1. 40- and 28-pin sockets. For information on using stand-offs to select the desired pin count socket, see Section A.3. 2000 Microchip Technology Inc. DS51184D-page 13 MPLAB ICD User's Guide 2. Eight DIP switches to connect and disconnect each of the eight LEDs to and from its respective PORTC pin. 3. Eight red LEDs connected to PORTC for displaying 8-bit binary values. 4. Two push-button switches, one for RESET and one for external stimulus on RB0. 5. A potentiometer for analog input on RA0. 6. A small prototyping area. 7. A connector area to access the I/O pins of the PIC16F87X for expansion prototyping. 8. A jumper to select the RC oscillator (see Section A.3.8) or an external crystal. 9. Socket for external crystal. 10. A connector for a 9V, 0.75A power supply, similar to the PICSTART Plus programmer power supply. Refer to refer to Section A.3. 11. Provisions for a MAX232 and associated hardware that may be populated to add RS-232 capability. 12. A modular cable connection that can be used to connect the MPLAB ICD Demo Board directly to the MPLAB ICD Module. 2 9 10 TO ICD MODULE 1 8 7 3 6 12 11 11 4 5 Figure 1.3: MPLAB ICD Demo Board 1.6 How MPLAB ICD Helps You The MPLAB ICD allows you to: Debug your source code in your own application Debug your hardware in real-time Program a target PIC16F87X using Microchip's ICSPTM protocol DS51184D-page 14 2000 Microchip Technology Inc. Overview and Installation 1.7 Installing MPLAB ICD Hardware There are two ways to use the MPLAB ICD and, hence, two ways to install the hardware. 1.7.1 Connecting the MPLAB ICD Module, Header, and Demo/Target Board MPLAB ICD Header To RS-232 Target socket Power in MPLAB ICD Module Demo Board or Target Application MPLAB ICD Demo Board Figure 1.4: MPLAB ICD Connection with Header This type of installation is only applicable if you have the MPLAB ICD Evaluation Kit. Install the MPLAB ICD system hardware by following these steps: 1. Plug the 40-pin PIC16F87X device into the 40-pin DIP socket in the MPLAB ICD Header board. To debug this part on the target or Demo Board PIC16F870 PIC16F871 PIC16F873 PIC16F874 PIC16F876 PIC16F877 Use this part on the Header PIC16F871 PIC16F871 PIC16F874 PIC16F874 PIC16F877 PIC16F877 2000 Microchip Technology Inc. DS51184D-page 15 MPLAB ICD User's Guide Note 1: Devices without a 40-pin equivalent cannot be used with the MPLAB ICD Header. To debug such devices, you must connect the MPLAB ICD Module directly to the demo/target board as described in Section 1.7.2. If you have an MPLAB ICD firmware version older than 2.00, you must contact your sales office to obtain an MPLAB ICD firmware upgrade in order to use the MPLAB ICD with a PIC16F87X other than the PIC16F876/877. 2: 2. Connect the 9-inch modular cable between the MPLAB ICD Module and the MPLAB ICD Header. 3. If you are debugging a 40-pin part using the MPLAB ICD Demo Board or a target board, insert the two 20-pin male to male headers (stand-offs) onto the MPLAB ICD Demo Board or target board sockets. Then, plug the MPLAB ICD Header board into the stand-offs (see Section A.3). If you are debugging a 28-pin part using the MPLAB ICD Demo Board or a target board, insert the two 14-pin male to male headers (stand-offs) onto the MPLAB ICD Demo Board or target board sockets. Then, plug the MPLAB ICD Header board into the stand-offs (see Section A.3). 4. Connect the RS-232 cable between the serial port of the host computer and the MPLAB ICD Module. 1.7.2 Connecting the MPLAB ICD Module and Demo/ Target Board PIC16F87X To RS-232 Power in MPLAB ICD Module Target socket Demo Board or Target Application MPLAB ICD Demo Board Figure 1.5: MPLAB ICD Connection Without Header DS51184D-page 16 2000 Microchip Technology Inc. Overview and Installation You can connect the MPLAB ICD Module directly to the MPLAB ICD Demo Board (if you have the MPLAB ICD Evaluation Kit), or directly to your target board if your target board incorporates a modular cable connection described in the following table. Pin 1 2 3 4 5 6 Signal RB3 RB6 RB7 Ground +VDD VPP This configuration also provides full MPLAB ICD functionality. 1. Plug a PIC16F87X into the 28-pin or 40-pin DIP socket in the MPLAB ICD Demo Board or target board. 2. Connect the 9-inch modular cable between the MPLAB ICD Module and the MPLAB ICD Demo Board or your target board. 3. Connect the RS-232 cable between the serial port of the host computer and the MPLAB ICD Module. 1.8 Applying Power to the System Components MPLAB ICD must be run using external (target board) power. To prevent damage to any part of the system, power up the system components in the following sequence: 1. Turn on the power to the host computer. 2. Turn on the power to the MPLAB ICD Demo Board/target application which also powers the MPLAB ICD Module. (For the MPLAB ICD Demo Board, you can use the 9 VDC center-positive power adapter supplied with the PICSTART Plus Programmer.) Turn the system components off in reverse order. 1.9 Installing MPLAB IDE Software To install the MPLAB IDE software, refer to the installation instructions found in the MPLAB IDE User's Guide. The MPLAB ICD functions with the MPLAB IDE software under the following operating systems: Microsoft Windows 3.1x Windows 95/98 Windows NT Windows 2000 2000 Microchip Technology Inc. DS51184D-page 17 MPLAB ICD User's Guide NOTES: DS51184D-page 18 2000 Microchip Technology Inc. MPLAB ICD USER'S GUIDE Chapter 2. Tutorial PIC16F877 2.1 Introduction The MPLAB ICD is a programmer for the PIC16F87X family, as well as an incircuit debugger. This tutorial will help you start using the MPLAB ICD hardware and software to program your part and debug source code. This tutorial uses a sample project, Tut877. The tut877.asm program is a simple implementation of the PIC16F877's analog-to-digital (A/D) converter using the MPLAB ICD Demo Board. This program configures the A/D module to convert an A/D channel 0 (connected to the potentiometer on the MPLAB ICD Demo Board) and display the results on the LEDs on PORTC. This tutorial requires the use of the MPLAB ICD Demo Board. Therefore, if you have the standalone MPLAB ICD Module (DV164002) rather than the MPLAB ICD Evaluation Kit (DV164001), this chapter is not applicable. 2.2 Highlights Topics covered in this chapter: Running MPLAB IDE Creating a Hex File for Debugging Setting up MPLAB ICD Setting Programming and Debugging Options Programming the PIC16F877 Setting up the Demo Board Running Tut877 Debugging Tut877 Tut877 Main Routine Tut877 Corrected Source Code 2000 Microchip Technology Inc. DS51184D-page 19 MPLAB ICD User's Guide 2.3 Running MPLAB IDE After installing the MPLAB IDE software, invoke it by executing the file mplab.exe. For more information on installing and using the MPLAB IDE, refer to the MPLAB IDE User's Guide (DS51025) and the README.LAB file in the MPLAB install directory. Figure 2.1: MPLAB IDE DS51184D-page 20 2000 Microchip Technology Inc. Tutorial PIC16F877 2.4 Creating a Hex File for Debugging You will need to create a new project to include the source file tut877.asm and build the hex file tut877.hex. See the next sections for instructions on how to create a new project, tut877.pjt. 2.4.1 New Project Directory In File Manager (Windows 3.1) or Windows Explorer, create a subdirectory for the new project, \MPLAB\tut877. Move the tut877.asm file from \MPLAB to this subdirectory. 2.4.2 New Project Select Project > New Project, select the directory for the new project, and then enter tut877.pjt in the File Name box. Click OK. Figure 2.2: New Project tut877.pjt 2000 Microchip Technology Inc. DS51184D-page 21 MPLAB ICD User's Guide 2.4.3 Project Dialog The Edit Project dialog should open. Figure 2.3: Edit Project Dialog Before Setting Development Mode Notice the development mode. It indicates we are working with the MPLAB SIM simulator and a PIC12C508 processor. Your display will indicate whatever development mode and processor you were working with previously in the MPLAB IDE. We will need to change these settings now. Click Change. DS51184D-page 22 2000 Microchip Technology Inc. Tutorial PIC16F877 Figure 2.4: Setting the Development Mode Select MPLAB ICD Debugger under Tools. Make sure you select the PIC16F877 processor. Click OK. A window will inform you that no hex file has been built for this project. We will build the hex file later. Click OK. MPLAB IDE will now establish communications with the MPLAB ICD. The MPLAB ICD dialog will momentarily appear during this process. If you receive an error message, double-check the connections for power supply, socket seating, and cable seating. For more detailed troubleshooting information, refer to Chapter 5. The MPLAB ICD dialog must remain open throughout the tutorial. Do not close the MPLAB ICD dialog when it appears. If you want, you can move the dialog. 2000 Microchip Technology Inc. DS51184D-page 23 MPLAB ICD User's Guide Figure 2.5: Edit Project Dialog Notice that the correct development mode and processor are shown in the Edit Project dialog. Click on the line tut877 [.hex] in the Project Files area of the Edit Project dialog, and then click the Node Properties button. DS51184D-page 24 2000 Microchip Technology Inc. Tutorial PIC16F877 2.4.4 Set Node Properties The Node Properties dialog shows the command line switches for the tool, in this case the MPASM assembler. When you first open this dialog, the checked boxes represent the default values for the tool. For this tutorial, these settings do not need to be changed from their defaults. Click OK to return to the Edit Project dialog. Figure 2.6: Node Properties Dialog 2000 Microchip Technology Inc. DS51184D-page 25 MPLAB ICD User's Guide 2.4.5 Add Node Click Add Node from the Edit Project dialog to open the Add Node dialog. Select tut877.asm for this tutorial, and then click OK. Figure 2.7: Add Node DS51184D-page 26 2000 Microchip Technology Inc. Tutorial PIC16F877 2.4.6 Complete Project Setup In this simple example, no entries were made in the Path boxes. As your application becomes more complex, you may need to enter the directories of your Include Files in the appropriate boxes. The MPASM assembler always makes a .hex file with the same name as the source .asm file. The Project Manager will create a tut877.hex file when the project is built. Figure 2.8: Edit Project Dialog with Node Click OK to close the Edit Project Dialog. Now select Project > Save Project from the MPLAB IDE menu to save your project. 2000 Microchip Technology Inc. DS51184D-page 27 MPLAB ICD User's Guide 2.4.7 Make Project Select Project > Make Project from the menu to compile the application using the MPASM assembler. Note: When you successfully build the project, a window will inform you that the project has been rebuilt and that you must reprogram the ICD in order to effect the change. If you do not want to see this warning each time you rebuild, check the checkbox to ignore this warning. We will do this later in the tutorial. Click Close. A Build Results window shows the command line sent to the assembler. It should look like this: Figure 2.9: Build Results Window Note: Message [302] is simply letting you know that, at the designated line number (i.e., 31, 32, and 34) you are specifying a file register that is not in bank zero. This is not an error and your code will compile correctly. Click the X in the upper right corner of the Build Results window to close it. Or, click the Restore icon next to the X to resize the window. Subsequent builds will use this smaller Build Results window. DS51184D-page 28 2000 Microchip Technology Inc. Tutorial PIC16F877 2.5 Setting Up MPLAB ICD At this point, the MPLAB ICD dialog should be on your desktop. Make the selections described in this section to set up the MPLAB IDE for use with the MPLAB ICD hardware. Figure 2.10: MPLAB ICD Dialog Table 2.1: MPLAB ICD Dialog Item Status Options The Status bar displays the executed MPLAB ICD function and the status. When you program a device, you can watch the progress in this area. When the operation is complete, the Status box displays the message "Waiting for user command." COM Port and Baud Do not change these values for this tutorial. Rate Pull-Down Menus Upload Options PullDown Menu Operating Frequency Range Pull-Down Menu Options Select Minimum for now. Later in the tutorial we will change this for debugging. Select the operation frequency range of 2 MHz 10 MHz. Click this button to bring up the ICD Options dialog. 2000 Microchip Technology Inc. DS51184D-page 29 MPLAB ICD User's Guide 2.6 Setting Programming and Debugging Options To program the target PIC16F877 device, the ICD Options dialog must first be set up for programming. The small MPLAB ICD dialog was opened when you entered the MPLAB ICD development mode. Click Options in the MPLAB ICD dialog to open the ICD Options dialog. Figure 2.11: MPLAB ICD Options Dialog DS51184D-page 30 2000 Microchip Technology Inc. Tutorial PIC16F877 2.6.1 Configuration Bits and Device Selection This section of the ICD Options dialog allows you to set the various configuration bits on the PIC16F87X processors. Click the arrow and select from the list. Table 2.2: Configuration Bits and Device Selection Item Device Options The PIC16F877 device should be shown, as selected in the Development Mode dialog. If not, select Options > Development Mode, select the correct device, and click OK. Then use the Project menu item Project > Save to save your project. RC is used in this tutorial. Check the MPLAB ICD Demo Board to make sure the oscillator jumper JP1 is correctly placed for the RC OSC option (see item 8 in Figure 1.3). For more information on the oscillator, see Section A.3.8. For this tutorial, the Watchdog Timer (WDT) should be off/disabled. For this tutorial, the Power-Up Timer (PWRT) should be on/enabled. For this tutorial, the Brown-Out Detect (BOD) should be off/disabled. Low voltage ICSP programming should be disabled when using the MPLAB ICD. This means that you may use RB3 as digital I/O and you must use HV on MCLR for programming. No memory will be written to EECON for this tutorial. Turn off code protection for this tutorial. Oscillator Watchdog Timer Power Up Timer Brown Out Detect Low Voltage Program Code Protect Data EE Turn off code protection for this tutorial. Flash Memory Write Code Protect 2.6.2 IDs and Checksum The checksum for the data and the ID code are displayed here. For this tutorial, Use Checksum as ID by selecting the checkbox. 2.6.3 Voltages Allows you to check the VDD and VPP voltages on the target application by clicking the Update button. MPLAB ICD develops its needed VPP 13V from the target board's VDD through use of a switching boost converter. 2000 Microchip Technology Inc. DS51184D-page 31 MPLAB ICD User's Guide 2.6.4 Program Options The program address range (Start Address and End Address) is the range of program or data memory that will be read, programmed or verified. Make sure that all checkboxes under Program Options are checked. This means that all memory, ID, and configuration bits will be programmed. Also, all memory will be erased before programming and Debug Mode will be enabled. Click Def. Addr to set the address range to the maximum program memory available based on the device you selected. 2.6.5 Function Buttons During the tutorial you will click these buttons to perform the assigned function on the PIC16F87X in the MPLAB ICD Header or Demo/Target board. 2.7 Programming the PIC16F877 Click the Program button to program tut877.hex and debug code into the PIC16F87X in the MPLAB ICD Header or MPLAB ICD Demo Board. Programming may take a couple of minutes. During programming, the Status box shows the current phase of the operation. When programming is complete, the Status box displays the message "Waiting for user command." Note: The debug code is special code at 1F00h-1FFFh in the PIC16F877 that must be present to use the in-circuit debugging capabilities of the MPLAB ICD. You can minimize or move the MPLAB ICD dialog, but do not close it. Closing the MPLAB ICD dialog will disable the ICD. To reenable the ICD, you will have to select Options > Development Mode. Select Editor Only and click Apply. Then select MPLAB ICD and click OK to reenable the ICD. DS51184D-page 32 2000 Microchip Technology Inc. Tutorial PIC16F877 2.8 Setting Up the Demo Board Before you begin debugging, make sure the MPLAB ICD Demo Board is set up as follows: the RC OSC option has been selected using jumper JP1. the DIP switch (SW3) has all switches in the ON position to connect all LEDs to their respective PORTC pin. OSC Jumper DIP Switches LEDs POTENTIOMETER Figure 2.12: Setting Up the Demo Board 2.9 Running Tut877 The MPLAB ICD executes in real-time mode or in step mode. Real-time execution occurs when the PIC16F87X in the MPLAB ICD Header is put in MPLAB IDE's Run mode. Step mode execution can be accessed after the processor is halted. Begin in real-time mode: Open the tut877.asm file for viewing ( File > Open) Click the Run toolbar button or issue the Debug > Run > Run command The Status bar at the bottom of the MPLAB IDE desktop should turn yellow. To change the colors that signify a program run, select Options > Environment Setup and click the Colors tab. On the MPLAB ICD Demo Board, turn the arrow on the potentiometer (RA0) till it points to the DIP switch (SW3). Observe the LEDs. If the program were working correctly, you would see a binary representation of the voltage value across the potentiometer. However, an insidious bug has been placed in the Tut877 program! Of course, this will give us the opportunity to debug the code. 2000 Microchip Technology Inc. DS51184D-page 33 MPLAB ICD User's Guide Click the Halt toolbar button or issue the Debug > Run > Halt command to stop the program execution. Reset the program by selecting Debug > Run > Reset. 2.10 Debugging Tut877 Any of the following could be preventing the Tut877 program from working: The A/D converter value is not being properly written to PORTC (LEDs) The A/D converter is not on or has not been set to convert A typo in the source code is causing the program to function improperly To explore the first possibility, you will set a breakpoint at the line of the file that writes the value of A/D result to PORTC. Highlight or place the cursor on the following line of code from tut877.asm: movf ADRESH,W ;Write A/D result to PORTC Click on the right mouse button to access a shortcut menu. Select Break Point(s) from the shortcut menu as shown in Figure 2.13. This line will now be marked as a breakpoint. To change the colors that mark a breakpoint, select Options > Environment Setup and click the Colors tab. Figure 2.13: Set Breakpoint DS51184D-page 34 2000 Microchip Technology Inc. Tutorial PIC16F877 Click the Run toolbar button or issue the Debug > Run > Run command to run the program once again in real-time mode. A breakpoint will stop a program's execution when the program executes the line marked as a breakpoint. However, our sample program is not halting. Therefore, halt it yourself now by clicking the Halt toolbar button or issuing the Debug > Run > Halt command. Look at the source code (tut877.asm) window and notice where the program halted. Our sample program halted on one of the two lines in the Wait routine as shown in Figure 2.14. Based on the halt location and the fact that the program never reaches the breakpoint, we conclude that the problem is in the A/D conversion--the A/D flag for conversion complete is not being set. Figure 2.14: Program Halted A/D conversion initialization and setup occurs at the beginning of the program. To check out this code, first reset the program by selecting Debug > Run > Reset. The first instruction after Start should be highlighted. 2000 Microchip Technology Inc. DS51184D-page 35 MPLAB ICD User's Guide Open a new watch window so you can watch the A/D register values change as the program executes. Select Window > Watch Windows > New Watch Window. The Add Watch Symbol dialog will open, with the Watch_1 new watch window behind it. Add the symbols ADCON0 and ADCON1 as shown in Figure 2.15. Figure 2.15: Adding Watch Symbols Click Close when finished. The selected symbols should now be visible in the watch window as shown in Figure 2.16. Figure 2.16: Watch Window In the MPLAB ICD dialog, set the upload options to Minimum & Watch Windows. Single stepping and halting may be slower now, but this setting allows us to see the Watch windows for debugging. Close or minimize the MPLAB ICD Options dialog. In the tut877.asm source code, set a breakpoint at the second instruction after Start. Again, highlight or place the cursor on the following line of code from tut877.asm: clrf PORTC ;Clear PORTC Click on the right mouse button to access a shortcut menu. Select Break Point(s) from the shortcut menu. This line will now be marked as a breakpoint. DS51184D-page 36 2000 Microchip Technology Inc. Tutorial PIC16F877 Finally, click the Run toolbar button or issue the Debug > Run > Run command to run the program in real-time mode. This time the program will stop after it executes the breakpoint line of code, and the instruction after the breakpoint will be highlighted as shown in Figure 2.17. Figure 2.17: Program Halted After Break Now single step by clicking on the Step toolbar button or issuing the Debug > Run > Step command. Single step twice and then examine the values of the registers ADCON0 and ADCON1 in the Watch window. You should notice that ADCON0 has a value of 40 hex as shown in Figure 2.18. 2000 Microchip Technology Inc. DS51184D-page 37 MPLAB ICD User's Guide Figure 2.18: Updated Watch Window This corresponds to the binary value designated in the program, but is this value correct? On examining the PIC16F87X Data Sheet (DS30292) section on A/D, you will see that the last bit should be a one, not a zero, to turn the A/D module on. To fix this bug, change: movlw B'01000000' ;Fosc/8, A/D enabled to movlw B'01000001' ;Fosc/8, A/D enabled Select File > Save to save your changes and select Project > Make Project to rebuild the project. A message will tell you the program has been rebuilt and you must reprogram the ICD in order for your changes to take effect. Click the Program button in the MPLAB ICD dialog to reprogram the ICD to reflect your change. When the MPLAB ICD dialog's Status box indicates that it is waiting for your next command, you are ready to run your program again. Click the Run toolbar button or issue the Debug > Run > Run command to run the program in real-time mode. Some of the LEDs should now be lit. Turn the potentiometer (RA0) to change the value displayed on the LEDs. The source code in this tutorial contained only one bug. However, real code may have more. Using the MPLAB ICD and MPLAB IDE debugging functions, you can successfully find and fix the bugs in your code. DS51184D-page 38 2000 Microchip Technology Inc. Tutorial PIC16F877 2.11 Tut877 Main Routine The main routine of tut877.asm (Figure 2.19) begins by configuring PORTC, the A/D module and Timer0. It then waits for a Timer0 overflow to start the A/D conversion of the value from the potentiometer. When the conversion is complete, the value is displayed on the LEDs, and the program loops back to wait for another Timer0 overflow to start another A/D conversion. For more information on A/D module operation and a list of related application notes, refer to the PICmicro Mid-Range MCU Family Reference Manual (DS33023). Start Configure PORTC as All Outputs Configure A/D left justify, FOSC/8 clock 1 analog channel Configure Timer0 Prescaler assigned to Timer0 1:256 prescale No Timer0 Overflow? Yes Start A/D Conversion No Conversion Complete? Yes Write A/D Result to PORTC Figure 2.19: Program Flow Chart 2000 Microchip Technology Inc. DS51184D-page 39 MPLAB ICD User's Guide 2.12 Tut877 Corrected Source Code This is a functional version of tut877.asm. ;********************************************************** ;* TUT877.ASM ;********************************************************** ;* Microchip Technology Incorporated ;* 16 December 1998 ;* Assembled with MPASM V2.20 ;********************************************************** ;* This program configures the A/D Module to convert on ;* A/D channel 0 (the potentiometer) and display the ;* results on the LEDS on PORTC. Make sure that the DIP ;* switch SW3 has all switches in the ON position. ;********************************************************** list p=16f877 ; Include file, change directory if needed include <p16f877.inc> ; Start at the reset vector org 0x000 nop Start banksel clrf movlw movwf banksel movlw movwf clrf movlw movwf banksel Main btfss goto bcf bsf Wait btfss goto PIR1,ADIF Wait ;Wait for conversion to complete INTCON,T0IF Main INTCON,T0IF ADCON0,GO ;Wait for Timer0 to timeout PORTC PORTC B'01000001' ADCON0 OPTION_REG B'10000111' OPTION_REG TRISC B'00001110' ADCON1 PORTC ;Clear PORTC ;Fosc/8, A/D enabled ;TMR0 prescaler, 1:256 ;PORTC all outputs ;Left justify,1 analog channel ;VDD and VSS references ;Start A/D conversion DS51184D-page 40 2000 Microchip Technology Inc. Tutorial PIC16F877 movf movwf clrf WaitPush btfss goto movwf goto end ADRESH,W PORTC PORTC PORTB,0 WaitPush PORTC Main ;Write A/D result to PORTC ;LEDs ;Do it again 2000 Microchip Technology Inc. DS51184D-page 41 MPLAB ICD User's Guide NOTES: DS51184D-page 42 2000 Microchip Technology Inc. MPLAB ICD USER'S GUIDE Chapter 3. General Setup 3.1 Introduction This chapter describes how to get the hardware and software for the MPLAB ICD up and working. 3.2 Highlights Topics covered in this chapter: Running MPLAB ICD Setting Up the Development Mode Setting Up the MPLAB ICD Dialog Setting Up the ICD Options Dialog Using MPLAB Projects 3.3 Running MPLAB IDE After installing MPLAB IDE, invoke it by executing the file mplab.exe. For more information on installing and using MPLAB IDE, refer to the MPLAB IDE User's Guide (DS51025) and the included file readme.lab in the MPLAB IDE install directory. Figure 3.1: MPLAB IDE 2000 Microchip Technology Inc. DS51184D-page 43 MPLAB ICD User's Guide 3.4 Setting Up the Development Mode Use the Development Mode dialog to select MPLAB ICD for use with the MPLAB IDE software. 1. Select Options > Development Mode. Select the MPLAB ICD Debugger development mode, and select the processor you are going to use. Click OK. Below the Processor is a brief description of any limitations that exist for this processor on the MPLAB ICD. A more detailed description of limitations may be viewed by clicking on Details. 2. The MPLAB ICD dialog will appear. You will use this dialog to set up the debugger. Note: You can move the MPLAB ICD dialog, but do not close it. 3. If MPLAB IDE cannot find the MPLAB ICD, check your hardware connections (Section 1.7) and then go to step 1. If you still cannot connect, see the next section or troubleshooting chapter (Chapter 5). Figure 3.2: Development Mode Dialog Box You may also access the Development Mode dialog from the Edit Project dialog by clicking Change next to the Development Mode item. See Chapter 2 for more information on setting up projects. DS51184D-page 44 2000 Microchip Technology Inc. General Setup 3.5 Setting Up the MPLAB ICD Dialog The MPLAB ICD dialog is always open when the ICD is enabled. You can minimize or move the MPLAB ICD dialog, but do not close it. Closing this dialog disables the debugger. You must then select Options > Development Mode, select None (Editor Only), and click Apply. Then, select MPLAB ICD, and click OK to reenable the debugger. Figure 3.3: MPLAB ICD Dialog The MPLAB ICD dialog has the following settings and buttons. Table 3.1: MPLAB ICD Dialog Item Status COM Port Baud Rate Upload Options Options The Status bar displays the executed MPLAB ICD function and the status. Select the COM port (COM1, COM2, COM3 or COM4) for MPLAB ICD communications. Select the COM port baud rate for MPLAB ICD communications. The options for the amount of data uploaded are: Minimum (FSR, W, Status, PCLATH) (Very Fast) SFRs only (Fast) Minimum and Watch windows (Pretty Fast) All Registers (Slow) If you are using breakpoints and single step, you can upload selected data to improve speed. The first selection has less than a second delay, where as the last selection will have a delay of approximately 2 seconds. Data will be uploaded on a single step, a breakpoint or a halt. 2000 Microchip Technology Inc. DS51184D-page 45 MPLAB ICD User's Guide Table 3.1: MPLAB ICD Dialog (Continued) Item Operating Frequency Range Options Select the operation frequency range of the MPLAB ICD. Options are: Note: 32 kHz 500 kHz 500 kHz 2 MHz 2 MHz 10 MHz 10 MHz 20 MHz If you are using a version of MPLAB IDE previous to 5.20, you need to change development modes to save the above settings. Select Options > Development Mode, select None (Editor Only), and click Apply. Then select MPLAB ICD Debugger, and click OK. If you had to change the COM port or baud rate, click Reconnect to reestablish communications using the new values. Programs the device. Opens the ICD Options dialog (see next section). Reconnect Program Options DS51184D-page 46 2000 Microchip Technology Inc. General Setup 3.6 Setting Up the ICD Options Dialog The ICD Options dialog is accessed by clicking Options in the MPLAB ICD dialog. The ICD Options dialog can be closed or minimized without disabling the ICD. The ICD Options dialog (Figure 3.4) has all the programming and setup functions for the MPLAB ICD. These functions include basic programmer functions like blank check, read, program, verify, erase, and the debugger functionality. Figure 3.4: MPLAB ICD Options Dialog 2000 Microchip Technology Inc. DS51184D-page 47 MPLAB ICD User's Guide 3.6.1 Configuration Bits and Device Selection This section of the dialog allows you to set the various configuration bits on the PIC16F87X processors. To select, click on the arrow to see the list of choices, and then select the correct item. Table 3.2: Configuration Bits and Device Selection Options Item Device Options This box shows the processor you selected in the Development Mode dialog. If you change the device here, any open MPLAB IDE projects will close and program memory, configuration bits, and IDs will be cleared. RC, LP, XT or HS Select On/Enable or Off/Disable. Usually should be disabled for debugging. Select On/Enable or Off/Disable. Usually should be disabled for debugging. Select On/Enable or Off/Disable. Must be disabled for debugging. Select low-voltage programming function or use RB3 as digital I/O and use HV on MCLR for programming. Low-voltage programming must be disabled for debugging. Oscillator Watchdog Timer Power Up Timer Brown Out Detect Low Voltage Program Code Protect Data EE Select On/Enable or Off/Disable. Must be disabled for debugging. Flash Memory Write Select whether to allow unprotected program memory to be written by EECON control. Usually should be disabled for debugging. Select the desired range. Must be disabled for debugging. Code Protect 3.6.2 IDs and Checksum Table 3.3: IDs and Checksum Selection Options Item Checksum ID Code Use Checksum as ID Displays the ID code. To use the checksum as the ID, select the checkbox. Options Displays the checksum for the data. DS51184D-page 48 2000 Microchip Technology Inc. General Setup 3.6.3 Voltages Table 3.4: Voltage Selection Options Item VDD Options Displays the current value of the VDD voltage. MPLAB ICD develops its needed VPP 13V from the target board's VDD through use of a charge pump. Displays the current value of the VPP voltage. Allows you to check the current value of the VDD and VPP voltages on the target application. VPP Update 3.6.4 Program Options Select or clear the checkbox next to the item to select or deselect the memory areas for the programmer functions. For example, if you want to read program memory only, select Program Memory and clear the checkboxes for the other memory types. Table 3.5: Program Selection Options Item Start Address, End Address Options The starting and ending address range in program memory for programming, reading or verification. Note: The address range does not apply to the Erase function. The Erase function will erase all data on the PIC16F87X. The default program address range is set to the maximum program memory available based on the device you selected. To identify file register and program memory locations that the ICD uses in the target device, see Section 1.4. Configuration Bits Program the configuration bits. You can set the configuration bits in the top portion of the ICD Options dialog. Program the ID locations. You can set the ID locations in the IDs and Checksum area of the ICD Options dialog. For devices with data EEPROM, program the data memory from the data in the EEPROM Memory window. If this option is checked and you click Program, all program memory will be erased before programming begins. This results in faster programming times. Do not use this option with VDD voltages below 4.5. ID Locations EEPROM Data Erase All before Program 2000 Microchip Technology Inc. DS51184D-page 49 MPLAB ICD User's Guide Table 3.5: Program Selection Options (Continued) Item Enable Debug Mode Options Select this option to program debug code into a device. The debugging operations will be enabled each time you click Program. If you are only using MPLAB ICD to program a part, clear the Enable Debug Mode check box. The debug code will not be downloaded to program memory and MPLAB ICD will not be enabled for debug operations. 3.6.5 Function Buttons Click the Function buttons to perform the assigned function on the PIC16F87X in the MPLAB ICD Header. If you have specified an address range in the Program Options section, the assigned function will be performed on the specified memory range and type only (except for the erase function). Table 3.6: Function Button Selection Options Item Blank Read Options Checks to see if device is blank. Reads memory areas specified under Program Options: program memory, configuration bits, ID locations, and/or EEPROM data. Programs memory areas specified under Program Options: program memory, configuration bits, ID locations, and/or EEPROM data. Also downloads debug code in program memory if Enabled Debug Mode is checked. Verifies programming of memory areas specified under Program Options: program memory, configuration bits, ID locations, and/or EEPROM data. Erases all data on the PIC16F87X including memory, ID, and configuration bits. Do not use this option with VDD voltages below 4.5. Downloads an updated version of the MPLAB ICD operating system (firmware) to the MPLAB ICD's FLASH processor. See also Section 4.8. Performs a self-test on the MPLAB ICD hardware. Note: If there is no PIC16F87X on the MPLAB ICD Header or target/Demo Board or if the device is not programmed with debug code, the self test will indicate that the debug module doesn't exist. Program Verify Erase Download Operating System Self Test DS51184D-page 50 2000 Microchip Technology Inc. General Setup Table 3.6: Function Button Selection Options (Continued) Item Def.Addr Options Restores the Start and End addresses to the defaults for the device. End addresses with Debug Mode enabled: PIC16F870/871/872:0x6DF PIC16F873/874:0xEDF PIC16F876/877:0x1EFF End address with Debug Mode disabled: PIC16F870/871/872:0x7FF PIC16F873:0xFFF PIC16F876/877:0x1FFF 3.7 Using MPLAB Projects MPLAB IDE is the host software for the MPLAB ICD and the MPLAB SIM simulator. It functions as a sophisticated debugging tool, providing access to RAM, ROM, EEPROM, and a variety of other debug functions. Note: If you do not put your source files into a project, MPLAB IDE cannot debug properly. 3.7.1 MPLAB IDE Project Features Developing and debugging code in the MPLAB IDE environment is based on projects. Although emulation can be performed without having a project open, projects have the following advantages: Single or multiple source files can be easily built and maintained. Symbolic debugging is available. The debugging environment can be saved for later use. Some of the information that is retained with a project is: Development mode and processor Source files associated with the project Name of the final PICmicro MCU executable file Open windows and their sizes and positions Named break settings Configuration bit settings 3.7.2 Creating a Project Select Project > New Project to create a project and open the Edit Project dialog. The project will contain information about your source, object, and other files, as well as a variety of important project settings. 2000 Microchip Technology Inc. DS51184D-page 51 MPLAB ICD User's Guide 3.7.3 Saving a Project To save your current project to retain the values for later use or to use as a backup or default as you continue with your debugging, click OK in the Edit Project dialog. Then select Project > Save Project to save your project. Development Mode The selected development mode is retained with the project information. To change the development mode for a project, follow these steps: Open the project. The previously used development mode will be selected. Change the development mode by selecting Options > Development Mode to access the Development Mode dialog. Select the development mode and click OK. Select Project > Save Project to save the project. For more information on creating and using projects, refer to the MPLAB IDE User's Guide (DS51025). DS51184D-page 52 2000 Microchip Technology Inc. MPLAB ICD USER'S GUIDE Chapter 4. Basic Functions 4.1 Introduction This chapter discusses the basic operations of MPLAB ICD and MPLAB IDE debugging functions of the In-Circuit Debugger. For more information on general debugging features, refer to the MPLAB IDE User's Guide (DS51025). 4.2 Highlights Topics covered in this chapter: MPLAB ICD Operations Program Execution Breakpoints Modifying Functions Loading a Hex File for Debugging Upgrading the MPLAB ICD Operating System (Firmware) 4.3 MPLAB ICD Operations The MPLAB ICD is a programmer for the PIC16F87X family, as well as an incircuit debugger. It programs hex files into the PIC16F87X and offers basic debugging features like real-time code execution, stepping, and breakpoints. Its debug feature is built inside the PIC16F87X and activated by programming the Debug Code into the target processor. It has limited functions when compared to a full-featured in-circuit emulator (Section 1.4), but provides costeffective functions to debug and program applications for a PIC16F87X. To enable in-circuit debugging, the Debug Code (residing in the microcontroller in the MPLAB ICD Module) is programmed into the target PIC16F87X. The code is an MPASM module that will be programmed into the PIC16F87X automatically by MPLAB IDE. This code will reside at the end of program memory. For example, it will reside in 0x1F00 to 0x1FFF of the PIC16F877 processor (see Section 1.4). 2000 Microchip Technology Inc. DS51184D-page 53 MPLAB ICD User's Guide 4.4 Program Execution The MPLAB ICD executes in real-time mode or in step mode. Real-time execution occurs when the PIC16F87X in the MPLAB ICD Header or Demo Board/target board is put in the MPLAB IDE's Run mode. Step mode execution can be accessed after the processor is halted. 4.4.1 Real-Time Execution When the MPLAB ICD is run in real time, instructions execute just as the processor would without the debugger. The PIC16F87X executes in real time until a breakpoint halts the debugger or until the HALT function is manually executed. To execute in real time, click the Run toolbar button or issue the Debug > Run > Run command. The Debug toolbar provides Run, Halt, and Step buttons for controlling the debugger. While in the run mode, register displays on the screen will not update. 4.4.2 Step-Mode Execution Step-Mode Execution occurs when you single step the processor with the Debug > Run > Step command. Step-mode execution allows you to step through the code one instruction at a time, watch the program flow, and see the register contents at each instruction (as set in the dialog box). Note: With the design of the MPLAB ICD, it is IMPOSSIBLE to single step through an interrupt. Due to hardware restrictions, it is IMPOSSIBLE to jump to the interrupt vector memory location while doing a single step function. Debug > Run > Animate automatically single steps the processor until you halt it. To view the changing registers in the Special Function Register window or the Watch windows, use Animate. Animate runs slower than the Run function. DS51184D-page 54 2000 Microchip Technology Inc. Basic Functions 4.5 Breakpoints A breakpoint is a state where the processor halts after a certain condition is met. The MPLAB ICD provides the followings ways to set a breakpoint: Break on Address Match Break on User Halt 4.5.1 Break on Address Match The Debug function of the PIC16F87X allows one breakpoint to be set. This breakpoint can be at any program memory address location. The processor breaks after the instruction is executed. For example, if a breakpoint is set at address 005Ah, the processor breaks after executing the instruction at address 005Ah. To set a breakpoint, select Debug > Break Settings. You can also set a breakpoint by selecting the source code address in Program Memory or selecting the line of code in the source code window, clicking the right mouse button to access a shortcut menu, and selecting Break Point(s) from the shortcut menu. Note: MPLAB ICD only supports one breakpoint. If you set multiple breakpoints, they will be shown as enabled in the Breakpoint Settings but Window, only the last breakpoint set will actually be enabled, whether it was set through the Breakpoint Settings or by using the right mouse button. 4.5.2 Break on User Halt The PIC16F87X executes until you click the Halt button or select Debug > Run > Halt. 4.6 Modifying Functions If you need to modify the program being debugged, simply assemble a new hex file and download it. You can also use the Modify dialog to edit program memory before downloading it into the PIC16F87X with the Program button. If you do this, the object code generated by your source code will not match the code in the PIC16F87X. You can use Window > Modify to change a register, words of program memory or data in the EEPROM area. Select Window > File Registers and Window > Special Function Registers to view internal data registers. 2000 Microchip Technology Inc. DS51184D-page 55 MPLAB ICD User's Guide 4.7 Loading a Hex File for Debugging If you have a hex code file that you would like to program into your device for debugging (i.e., you have used a tool other than the MPLAB IDE to generate your hex code), you may load the hex code to the MPLAB IDE using the File > Import > Import to Memory command. To identify file register and program memory locations that ICD uses in the target device, see Section 1.4. Your code should be limited accordingly. Note: If you need to specify values for the EEPROM data memory in your source code, use a starting address of 0x2100. Once the hex file is imported, you can use the Windows menu to open the following windows: Program Memory Special File Registers File Registers EEPROM Memory 4.8 Upgrading the MPLAB ICD Operating System (Firmware) MPLAB ICD now supports downloadable firmware starting with Firmware v2.02 and MPLAB IDE v5.00. After upgrading to the PIC16LF876, future downloads can be performed through the MPLAB ICD software. If operation below 4.5V is not required in the target application, a PIC16F876 can be substituted for the PIC16LF876. See engineering tech. note ETN-21D on the our web site (http:\\www.microchip.com) for more information on upgrading. Operating System Downloads After System Upgrade To perform a download of a new MPLAB ICD operating system after system upgrade, do the following: From the MPLAB ICD dialog, click Options to open the ICD Options dialog. In the ICD Options dialog, click Download ICD Operating System. The Open Existing File dialog will appear. Select the version of the operating system (firmware) you wish to download from the list. The file name format is icd*.obj, where * is the operating system version number. Click OK. The selected operating system file will download to the MPLAB ICD. DS51184D-page 56 2000 Microchip Technology Inc. MPLAB ICD USER'S GUIDE Chapter 5. Troubleshooting 5.1 Introduction This section describes some common problems associated with running the MPLAB ICD and the steps to follow to resolve those problems. 5.2 Highlights Topic covered in this chapter: Common Problems 5.3 Common Problems Communications cannot be established with the MPLAB ICD. If you cannot establish communications with the MPLAB ICD, follow these steps: 1. Make sure there is power to the MPLAB ICD Demo Board/target application. MPLAB ICD is powered by the MPLAB ICD Demo Board/target application. Also, if you are using the MPLAB ICD Demo Board, make sure the power supply has the correct rating (9.0V, 0.75A). 2. Check that the MPLAB ICD Header is plugged into the MPLAB ICD Demo Board/target application correctly; e.g., all MPLAB ICD Header pins are plugged into the socket and the MPLAB ICD Header is correctly oriented. Also, make sure you are using the correct stand-off if you are using the MPLAB ICD Demo Board. 3. Check that the PIC16F87X is plugged into the MPLAB ICD Header correctly; e.g., all pins are plugged into the socket and the PIC16F87X is correctly oriented. 4. Check that the connection between the MPLAB ICD and the host computer, via the RS-232 cable, is secure. 5. Check that the connection between the MPLAB ICD Header and MPLAB ICD Module, via the 9-inch modular cable, is secure. 6. Check the settings in the MPLAB ICD dialog. Make sure you selected the correct PICmicro MCU, COM port, and baud rate for your application. The MPLAB IDE attempts to establish communication with the MPLAB ICD upon enabling the debugger. If communication cannot be established, no programming or debugging can occur. An error message appears if the attempt to establish communication fails. If a communication attempt fails, try again after correcting the problem or cancel. 2000 Microchip Technology Inc. DS51184D-page 57 MPLAB ICD User's Guide SOLUTIONS: Make sure the power supply is connected and the LED on the MPLAB ICD Module is on and not blinking. If the LED on the MPLAB ICD Module is blinking, reset the MPLAB ICD Module by cycling the power to the application on and off. Then reselect the COM port for the MPLAB ICD in the MPLAB ICD dialog box. The LED should stop blinking. Try connecting the MPLAB ICD Module to a different serial port. If your PC has a 25-pin serial port, you will need a 25-pin to 9-pin serial port adapter. Make sure that a COM port is properly set up exclusively for use by the debugger. Check the resources to ensure they are operating properly and that there are no conflicts with other devices. This commonly happens when you have a modem or other serial device that is improperly configured. Consult your Windows manual or other reference literature. You can try removing, reconfiguring or disabling the conflicting device, but do so only if you are familiar with those procedures. See the steps below for Windows 3.1 or Windows 95. Some system errors are caused by driver and hardware incompatibility. See the steps below for Windows 95. If you have a COM port but the MPLAB IDE will not let you select it (the option is grayed out) you may be able to assign the port manually by editing the mplab.ini file. Typically, this occurs if you have a gap in your COM port list (i.e., you have a COM1, COM2, and a COM4, but no COM3). In this case you may be able to fix it by opening mplab.ini (use FIND to locate this file) and editing the section called [MPLAB ICD] so that the setting CommPort=1 is set to the port you want selected. This is just a work-around to a deeper problem in which Windows is incorrectly reporting port availability through the 16-bit driver. You must use the Microsoft Windows communications driver that is native to the version of Windows that you use. If you use Windows 3.10, look for the file COMM.DRV in your \WINDOWS\SYSTEM directory. That file MUST have a time of 3:10a. The time denotes the version. If you are using Windows for Workgroups, look for the same file as above, but the time stamp on that file should be 3:11a. If these files differ, you may need to re-install windows or install that file from another source. This problem is not likely to occur in Windows 95. Make sure you are not using a third party communications driver. Open your system.ini file and look for the line in the [OPTIONS] section that reads COMM.DRV=COMM.DRV If this line reads differently you are using a different communications driver. DS51184D-page 58 2000 Microchip Technology Inc. Troubleshooting Windows 3.1: A serial mouse will use a COM port, as will an external modem. An internal modem has its own COM port, so if you have a second COM port on your PC, set it so it won't conflict with either the mouse or the modem. Windows 95: Windows 95 requires special attention to setting up COM ports. If you suspect a driver - hardware incompatibility, try changing Flow Control to Hardware and/or turning off the FIFO for the serial port. In Windows 95 this is done in the Control Panel. Click the System Icon. Next, click the Device Manager tab, and click Port Settings. If necessary, expand the Ports selection by clicking the "+" sign next to it. Double-click the I/O port that the MPLAB ICD is connected to. This is where you can set flow control to Hardware. To turn off the FIFO, click the Advanced button, deselect the Use FIFO box, and click OK. If communications still cannot be established, contact Microchip Customer Support as described in General Information. The MPLAB ICD Module returns a communications error on Reset, Single Step, Halt or Run. When using the MPLAB ICD Demo Board, make sure that the oscillator select jumper is correctly set to RC or oscillator and that the part is correctly programmed for this selection. If using an oscillator, make sure that there is one in the socket. This problem usually results in the part being programmed OK and debug mode set OK, but when a reset, single step, halt or run command is executed, the MPLAB ICD Module returns a communications error. Debug mode doesn't seem to be working. 1. Closing the MPLAB ICD dialog will disable the ICD. If you have closed this dialog, you will need to re-enable MPLAB ICD. Select Options > Development Mode, select None (Editor Only) and click Apply. Select MPLAB ICD and click OK. 2. Debug code must be programmed into the device before debug mode will work. Select Enable Debug Mode from the ICD Options dialog to program the device with debug code. When single stepping, the program runs too slowly. Check the upload options in the MPLAB ICD dialog. If you are uploading a large amount of data; e.g., all memory, you can expect about a 5 second delay between steps. To reduce the delay, select an option that uploads less data. When single stepping, the program runs too quickly OR some registers are not updated. Check the upload options in the MPLAB ICD dialog. If you are uploading a small amount of data, the time between steps will be less than if you were uploading all memory. If you are not getting all of the data uploaded that you expect, check that you have selected the correct type(s) of registers for upload. 2000 Microchip Technology Inc. DS51184D-page 59 MPLAB ICD User's Guide When halting, single stepping or stopping on a breakpoint or SLEEP command, MPLAB IDE seems to lock up. Check the upload options in the MPLAB ICD dialog. If you are uploading a large amount of data; e.g., all memory, you can expect about a 5 second delay between steps. To reduce the delay, select an option that uploads less data. The following I/O pins are not functioning correctly: RB3, RB6 or RB7. These pins are reserved for programming/debugging. Refer to Section 1.4 for more information. One or more of my memory addresses (Program or GPR) is not correct. Several GPR's and Program Memory Locations are reserved for debugging. Refer to Section 1.4 for more information. DS51184D-page 60 2000 Microchip Technology Inc. MPLAB ICD USER'S GUIDE Appendix A. Hardware Specifications A.1 Introduction The hardware included with the MPLAB ICD Evaluation Kit (DV164001) consists of the MPLAB ICD Module, MPLAB ICD Header, and MPLAB ICD Demo Board. The MPLAB ICD Module (DV164002) does not contain either the MPLAB ICD Header or the MPLAB ICD Demo Board. A.2 MPLAB ICD Module and Header The MPLAB ICD Module and MPLAB ICD Header are used to perform the ICD functions on the MPLAB ICD Demo Board or in the target application. A.2.1 Voltage and Current Specifications The MPLAB ICD Header is powered by the target application, from a 3.0V to 5.5V source. The current ratings for the ICD in different operating modes and voltages are as follows: Operating Mode 5V 35 mA (max) 40 mA 60 mA 60 mA 3V 20 mA (max) 25 mA 50 mA 50 mA Debug Run Verify Program A.2.2 Silkscreens and Schematics This section contains the silkscreen and schematic diagrams for the MPLAB ICD Module and MPLAB ICD Header. 2000 Microchip Technology Inc. DS51184D-page 61 MPLAB ICD User's Guide Figure A.1: MPLAB ICD Module Silkscreen DS51184D-page 62 2000 Microchip Technology Inc. Hardware Specifications Figure A.2: MPLAB ICD Module Schematic, Part 1 2000 Microchip Technology Inc. DS51184D-page 63 MPLAB ICD User's Guide Figure A.3: MPLAB ICD Module Schematic, Part 2 R5 DS51184D-page 64 330 2000 Microchip Technology Inc. Hardware Specifications Figure A.4: MPLAB ICD Module Schematic, Part 3 2000 Microchip Technology Inc. 100K DS51184D-page 65 MPLAB ICD User's Guide Figure A.5: MPLAB ICD Header Silkscreen This is filler text to make the diagram portrait, instead of landscape, in Acrobat. This is filler text to make the diagram portrait, instead of landscape, in Acrobat. This is filler text to make the diagram portrait, instead of landscape, in Acrobat. This is filler text to make the diagram portrait, instead of landscape, in Acrobat. This is filler text to make the diagram portrait, instead of landscape, in Acrobat. This is filler text to make the diagram portrait, instead of landscape, in Acrobat. This is filler text to make theJ1 diagram portrait, instead of landscape, in Acrobat. This is filler text to make the diagram portrait, instead of landscape, in Acrobat. This is filler text to make the diagram portrait, instead of landscape, in Acrobat. TOP SOLDER MASK This is filler text to make the diagram portrait, instead of landscape, in Acrobat. This is filler text to make the diagram portrait, instead of landscape, in Acrobat. 28-PIN HEADER 40-PIN HEADER BOTTOM SOLDER MASK CONNECTOR AS VIEWED FROM THE TOP OF PCB MCLR/VPP VDD GND RB7 RB6 RB3 J1 - ICD Header J2 - ICD Demo Board This layout may change in future revisions of the product. However, newer layouts will be functionally identical. DS51184D-page 66 2000 Microchip Technology Inc. RB3 RB6 RB7 JP1 +5V D1 1N4001 RJ11_6PIN 1 2 3 4 5 6 VPP 2000 Microchip Technology Inc. +5V +5V 20 C2 0.1uF 2 3 4 5 6 7 RA0 RA1 RA2 RA3 RA4 RA5 VPPX 11 VDD 32 VDD J1 R1 1K VPPX +5V 11 VDD 32 VDD U2 VPPX 1 MCLR U3 VDD U1 VPPX 1 MCLR 1 MCLR RB0 RB1 RB2 RB3 RB4 RB5 RB6 RB7 21 22 23 24 25 26 27 28 9 OSC1 2 RA0 3 RA1 4 RA2 5 RA3 6 RA4 7 RA5 33 RB0 34 RB1 35 RB2 36 RB3 37 RB4 38 RB5 39 RB6 40 RB7 OSC2 OSC1 13 12 VSS 31 VSS 14 OSC2 OSC1 14 13 RE2 RE1 RE0 RD7 RD6 RD5 RD4 RD3 RD2 RD1 RD0 RC7 RC6 RC5 RC4 RC3 RC2 RC1 RC0 2 RA0 3 RA1 4 RA2 5 RA3 6 RA4 7 RA5 33 RB0 34 RB1 35 RB2 36 RB3 37 RB4 38 RB5 39 RB6 40 RB7 10 9 8 30 29 28 27 22 21 20 19 26 25 24 23 18 17 16 15 RE2 RE1 RE0 RD7 RD6 RD5 RD4 RD3 RD2 RD1 RD0 RC7 RC6 RC5 RC4 RC3 RC2 RC1 RC0 8 VSS 19 VSS 10 9 8 30 29 28 27 22 21 20 19 26 25 24 23 18 17 16 15 10 OSC2 RC0 RC1 RC2 RC3 RC4 RC5 RC6 RC7 11 12 13 14 15 16 17 18 Figure A.6: MPLAB ICD Header Schematic 12 VSS 31 VSS 28-pin Header Hardware Specifications DS51184D-page 67 PIC16F87X 40-pin Header MPLAB ICD User's Guide A.3 MPLAB ICD Demo Board The MPLAB ICD Demo Board is a simple demonstration board that supports PIC16F87X microcontrollers. The board can be used stand-alone with a preprogrammed part or with the MPLAB ICD Module and MPLAB ICD Header. A sample program is provided to demonstrate the unique features of the devices. Although a 40-pin and a 28-pin socket are provided to accommodate the different packages, only one processor can be run at a time. A.3.1 Processor Sockets Available sockets are: 40-pin socket for PIC16F871/874/877 28-pin socket for PIC16F870/872/873/876 Additional 20- and 14-pin male to male headers have been provided as standoffs. Simply insert the desired headers onto the MPLAB ICD Demo Board and then plug the MPLAB ICD Header into the stand-offs. Without the stand-offs, the MPLAB ICD Header would not plug into the sockets. Or, simply insert the device directly onto the MPLAB ICD Demo Board. A.3.2 Display Eight red LEDs are connected to PORTC of each processor type. The PORTC pins are set high to light the LEDs. A.3.3 DIP Switches Eight DIP Switches are provided in a package as SW3. When all switches are in the ON position, each of eight red LEDs is connected to a pin of PORTC. A.3.4 Power Supply The MPLAB ICD Demo Board uses a 9.0V power supply to create a 5.0V VDD voltage to power the MPLAB ICD Module. This 9V power supply is NOT provided with the MPLAB ICD system. If you own a PICSTART Plus Programmer, you can use its power supply to power the MPLAB ICD Demo Board. The part number is AC162039. The minimum power supply specifications for the MPLAB ICD Demo Board as shipped are: DC power supply: 9VDC @ 0.3A With barrel connector: ID = 2.5 mm, OD = 5.5 mm, Barrel length: 10.0 mm, Inside positive A.3.5 ICD Connection A modular cable connection next to the power supply can be used to connect the MPLAB ICD Demo Board directly to the MPLAB ICD Module. DS51184D-page 68 2000 Microchip Technology Inc. Hardware Specifications A.3.6 RS-232 Serial Port A RS-232 level shifting circuit has been provided to support connection to a RS-232 host through the DB9 connector. The port is configured as DCE, and can be connected to a PC using a straight through cable, as opposed to a null modem cable. The circuitry must be populated by the user: U4 Analog Devices MAX233A or equivalent R14-R19 330, 1/8W resistor C7-C11 0.1 F capacitors J4 DB9 female right angle connector A.3.7 Push-Button Switches Two push buttons provide the following functions: MCLR to reset the processor Active low switch connected to RB0 A.3.8 Oscillator Options You can use the on-board RC oscillator circuit or plug an oscillator in the 4-pin socket. Make sure to set the jumper (JP1) to the proper selection. Socket provided for clock oscillator use an oscillator from 32 kHz to 20 Mhz RC circuit the frequency generated by the R3 resistor and C4 capacitor ranges from about 3.5 Mhz to 6 Mhz, depending on the operating voltage and ambient temperature. A.3.9 Analog Input A 1Kohm potentiometer is connected through a series 470 ohm resistor (to protect the part should the pin be configured as an output) to RA0/AN0. The port can be adjusted from VDD to GND to provide an analog input to the PIC16F87X parts. A.3.10 Silkscreens and Schematics This section contains the silkscreen and schematic diagrams for the MPLAB ICD Demo Board. 2000 Microchip Technology Inc. DS51184D-page 69 MPLAB ICD User's Guide Figure A.7: MPLAB ICD Demo Board Silkscreen DS51184D-page 70 TO ICD MODULE 2000 Microchip Technology Inc. Hardware Specifications Figure A.8: MPLAB ICD Demo Board Schematic, Part 1 2000 Microchip Technology Inc. DS51184D-page 71 MPLAB ICD User's Guide Figure A.9: MPLAB ICD Demo Board Schematic, Part 2 DS51184D-page 72 2000 Microchip Technology Inc. Hardware Specifications Figure A.10: MPLAB ICD Demo Board Schematic, Part 3 2000 Microchip Technology Inc. DS51184D-page 73 MPLAB ICD User's Guide Figure A.11: MPLAB ICD Demo Board Schematic, Part 4 DS51184D-page 74 2000 Microchip Technology Inc. MPLAB ICD USER'S GUIDE Glossary Introduction To provide a common frame of reference, this glossary defines the terms for several Microchip tools. Highlights This glossary contains terms and definitions for the following tools: MPLAB IDE, MPLAB SIM, MPLAB Editor MPASM Assembler, MPLINK Object Linker, MPLIB Object Librarian MPLAB CXX MPLAB-ICE, PICMASTER Emulators MPLAB ICD PICSTART Plus, PRO MATE Programmer Terms Absolute Section A section with a fixed (absolute) address which can not be changed by the linker. Access RAM (PIC18CXXX Devices Only) Special general purpose registers on PIC18CXXX devices that allow access regardless of the setting of the bank select bit (BSR). Alpha Character Alpha characters are those characters, regardless of case, that are letters of the alphabet: (a, b, ..., z, A, B, ..., Z). Alphanumeric Alphanumeric characters include alpha characters and numbers: (0,1, ..., 9). Application A set of software and hardware developed by the user, usually designed to be a product controlled by a PICmicro MCU. Assemble What an assembler does. See assembler. Assembler A language tool that translates a user's assembly source code (.asm) into machine code. The MPASM assembler is Microchip's assembler. 2000 Microchip Technology Inc. DS51184D-page 75 MPLAB ICD User's Guide Assembly A programming language that is once removed from machine language. Machine languages consist entirely of numbers and are almost impossible for humans to read and write. Assembly languages have the same structure and set of commands as machine languages, but they enable a programmer to use names (mnemonics) instead of numbers. Assigned Section A section which has been assigned to a target memory block in the linker command file. The linker allocates an assigned section into its specified target memory block. Breakpoint Hardware An event whose execution will cause a halt. Breakpoint Software An address where execution of the firmware will halt. Usually achieved by a special break opcode. Build A function that recompiles all the source files for an application. C A high level programming language that may be used to generate code for PICmicro MCUs, especially high-end device families. Calibration Memory A special function register or registers used to hold values for calibration of a PICmicro MCU on-board RC oscillator. COFF Common Object File Format. An intermediate file format generated by the MPLINK object linker that contains machine code and debugging information. Command Line Interface Command Line Interface refers to executing a program on the DOS command line with options. Executing the MPASM assembler with any command line options or just the file name will invoke the assembler. In the absence of any command line options, a prompted input interface (shell) will be executed. Compile What a compiler does. See compiler. Compiler A language tool that translates a user's C source code into machine code. MPLAB C17 and MPLAB C18 are Microchip's C compilers for PIC17CXXX and PIC18CXXX devices, respectively. DS51184D-page 76 2000 Microchip Technology Inc. Glossary Configuration Bits Unique bits programmed to set PICmicro MCU modes of operation. A configuration bit may or may not be preprogrammed. These bits are set in the Options > Development Mode dialog for simulators or emulators and in the _ _ CONFIG MPASM directive for programmers. Control Directives Control directives in the MPASM assembler permit sections of conditionally assembled code. Data Directives Data directives are those that control the MPASM assembler's allocation of memory and provide a way to refer to data items symbolically; that is, by meaningful names. Data Memory General purpose file registers (GPRs) from RAM on the PICmicro MCU device being emulated. The File Register window displays data memory. Directives Directives provide control of the assembler's operation by telling the MPASM assembler how to treat mnemonics, define data, and format the listing file. Directives make coding easier and provide custom output according to specific needs. Download Download is the process of sending data from the PC host to another device, such as an emulator, programmer or target board. EEPROM Electrically Erasable Programmable Read Only Memory. A special type of PROM that can be erased electrically. Data is written or erased one byte at a time. EEPROM retains its contents even when power is turned off. Emulation The process of executing software loaded into emulation memory as if the firmware resided on the microcontroller device under development. Emulation Memory Program memory contained within the emulator. Emulator Hardware that performs emulation. Emulator System The MPLAB ICE emulator system includes the pod, processor module, device adapter, cables, and MPLAB IDE software. The PICMASTER emulator system includes the pod, device-specific probe, cables, and MPLAB IDE software. 2000 Microchip Technology Inc. DS51184D-page 77 MPLAB ICD User's Guide Event A description of a bus cycle which may include address, data, pass count, external input, cycle type (fetch, R/W), and time stamp. Events are used to describe triggers and breakpoints. Executable Code See Hex Code. Export Sends data out of the MPLAB IDE in a standardized format. Expressions Expressions are used in the operand field of the MPASM assembler's source line and may contain constants, symbols or any combination of constants and symbols separated by arithmetic operators. Each constant or symbol may be preceded by a plus or minus to indicate a positive or negative expression. Note: The MPASM assembler expressions are evaluated in 32-bit integer math. (Floating point is not currently supported.) Extended Microcontroller Mode (PIC17CXXX and PIC18CXXX Devices Only) In extended microcontroller mode, on-chip program memory as well as external memory is available. Execution automatically switches to external if the program memory address is greater than the internal memory space of the PIC17CXXX or PIC18CXXX device. External Input Line (MPLAB ICE only) An external input signal logic probe line (TRIGIN) for setting an event based upon external signals. External Linkage A function or variable has external linkage if it can be accessed from outside the module in which it is defined. External RAM (PIC17CXXX and PIC18CXXX Devices Only) Off-chip Read/Write memory. External Symbol A symbol for an identifier which has external linkage. External Symbol Definition A symbol for a function or variable defined in the current module. External Symbol Reference A symbol which references a function or variable defined outside the current module. DS51184D-page 78 2000 Microchip Technology Inc. Glossary External Symbol Resolution A process performed by the linker in which external symbol definitions from all input modules are collected in an attempt to update all external symbol references. Any external symbol references which do not have a corresponding definition cause a linker error to be reported. File Registers On-chip general purpose and special function registers. FLASH A type of EEPROM where data is written or erased in blocks instead of bytes. FNOP Forced No Operation. A forced NOP cycle is the second cycle of a 2-cycle instruction. Since the PICmicro MCU architecture is pipelined, it prefetches the next instruction in the physical address space while it is executing the current instruction. However, if the current instruction changes the program counter, this prefetched instruction is explicitly ignored, causing a forced NOP cycle. GPR See Data Memory. Halt A function that stops the emulator. Executing Halt is the same as stopping at a breakpoint. The program counter stops, and the user can inspect and change register values, and single step through code. Hex Code Executable instructions assembled or compiled from source code into standard hexadecimal format code. Also called executable or machine code. Hex code is contained in a hex file. Hex File An ASCII file containing hexadecimal addresses and values (hex code) suitable for programming a device. This format is readable by a device programmer. High-Level Language A language for writing programs that is of a higher level of abstraction from the processor than assembler code. High level languages (such as C) employ a compiler to translate statements into machine instructions that the target processor can execute. ICD In-Circuit Debugger. MPLAB ICD is Microchip's in-circuit debugger for PIC16F87X devices. MPLAB ICD works with the MPLAB IDE. 2000 Microchip Technology Inc. DS51184D-page 79 MPLAB ICD User's Guide ICE In-Circuit Emulator. MPLAB ICE is Microchip's in-circuit emulator that works with the MPLAB IDE. IDE Integrated Development Environment. An application that has multiple functions for firmware development. The MPLAB IDE integrates a compiler, an assembler, a project manager, an editor, a debugger, a simulator, and an assortment of other tools within one Windows application. A user developing an application can write code, compile, debug, and test an application without leaving the MPLAB IDE desktop. Identifier A function or variable name. Import Bring data into the MPLAB IDE from an outside source, such as from a hex file. Initialized Data Data which is defined with an initial value. In C, int myVar=5; defines a variable which will reside in an initialized data section. Internal Linkage A function or variable has internal linkage if it can not be accessed from outside the module in which it is defined. Librarian A language tool that creates and manipulates libraries. The MPLIB object librarian is Microchip's librarian. Library A library is a collection of relocatable object modules. It is created by assembling multiple source files to object files, and then using the librarian to combine the object files into one library file. A library can be linked with object modules and other libraries to create executable code. Link What a linker does. See Linker. Linker A language tool that combines object files and libraries to create executable code. Linking is performed by Microchip's MPLINK object linker. Linker Script Files Linker script files are the command files of the MPLINK object linker (.lkr). They define linker options and describe available memory on the target platform. DS51184D-page 80 2000 Microchip Technology Inc. Glossary Listing Directives Listing directives are those directives that control the MPASM assembler listing file format. They allow the specification of titles, pagination, and other listing control. Listing File A listing file is an ASCII text file that shows the machine code generated for each C source statement, assembly instruction, MPASM directive or macro encountered in a source file. Local Label A local label is one that is defined inside a macro with the LOCAL directive. These labels are particular to a given instance of a macro's instantiation. In other words, the symbols and labels that are declared as local are no longer accessible after the ENDM macro is encountered. Logic Probes Up to 14 logic probes connect to the emulator. The logic probes provide external trace inputs, trigger output signal, +5V, and a common ground. Machine Code Either object or executable code. Macro A collection of assembler instructions that are included in the assembly code when the macro name is encountered in the source code. Macros must be defined before they are used; forward references to macros are not allowed. All statements following a MACRO directive and prior to an ENDM directive are part of the macro definition. Labels used within the macro must be local to the macro so the macro can be called repetitively. Macro Directives Directives that control the execution and data allocation within macro body definitions. Make Project A command that rebuilds an application, recompiling only those source files that have changed since the last complete compilation. MCU Microcontroller Unit. An abbreviation for microcontroller. Also C. Memory Models Versions of libraries and/or precompiled object files based on a device's memory (RAM/ROM) size and structure. 2000 Microchip Technology Inc. DS51184D-page 81 MPLAB ICD User's Guide Microcontroller A highly integrated chip that contains all the components comprising a controller. Typically this includes a CPU, RAM, some form of ROM, I/O ports, and timers. Unlike a general-purpose computer, which also includes all of these components, a microcontroller is designed for a very specific task to control a particular system. As a result, the parts can be simplified and reduced, which cuts down on production costs. Microcontroller Mode (PIC17CXXX and PIC18CXXX Devices Only) One of the possible program memory configurations of the PIC17CXXX and PIC18CXXX families of microcontrollers. In microcontroller mode, only internal execution is allowed. Thus, only the on-chip program memory is available in microcontroller mode. Microprocessor Mode (PIC17CXXX and PIC18CXXX Devices Only) One of the possible program memory configurations of the PIC17CXXX and PIC18CXXX families of microcontrollers. In microprocessor mode, the on-chip program memory is not used. The entire program memory is mapped externally. Mnemonics Instructions that are translated directly into machine code. Mnemonics are used to perform arithmetic and logical operations on data residing in program or data memory of a microcontroller. They can also move data in and out of registers and memory as well as change the flow of program execution. Also referred to as Opcodes. MPASM Microchip Technology's relocatable macro assembler. The MPASM assembler is a DOS or Windows-based PC application that provides a platform for developing assembly language code for Microchip's PICmicro MCU families. Generically, the MPASM assembler will refer to the entire development platform including the macro assembler and utility functions. The MPASM assembler will translate source code into either object or executable code. The object code created by the MPASM assembler may be turned into executable code through the use of the MPLINK object linker. MPLAB CXX Refers to the MPLAB C17 and MPLAB C18 C compilers. MPLAB ICD Microchip's in-circuit debugger for PIC16F87X devices. MPLAB ICD works with the MPLAB IDE. The MPLAB ICD system consists of a MPLAB ICD Module, MPLAB ICD Header (optional), MPLAB ICD Demo Board (optional), cables, and MPLAB IDE software. MPLAB ICE Microchip's in-circuit emulator that works with the MPLAB IDE. DS51184D-page 82 2000 Microchip Technology Inc. Glossary MPLAB IDE The name of the main executable program that supports the IDE with an Editor, Project Manager, and Emulator/Simulator Debugger. The MPLAB IDE software resides on the PC host. The executable file name is mplab.exe. mplab.exe calls many other files. MPLAB SIM Microchip's simulator that works with the MPLAB IDE. MPLIB Object Librarian The MPLIB object librarian is used with COFF object modules (filename.o) created using either MPASM v2.0, MPASMWIN v2.0 or MPLAB C v2.0 or later. The MPLIB object librarian will combine multiple object files into one library file. Then it can be used to manipulate the object files within the created library. MPLINK Object Linker The MPLINK object linker is a linker for the Microchip relocatable assembler, MPASM assembler, and the Microchip C compilers, MPLAB C17 or MPLAB C18. The MPLINK object linker also may be used with the Microchip librarian, MPLIB. It is designed to be used with the MPLAB IDE, though it does not have to be. MPLINK will combine object files and libraries to create a single executable file. MPSIM The DOS version of Microchip's simulator. MPLAB SIM is the newest simulator from Microchip. MRU Most Recently Used. Refers to files and windows available to be selected from MPLAB IDE main pull down menus. Nesting Depth The maximum level to which macros can include other macros. Macros can be nested to 16 levels deep. Non Real-Time Refers to the processor at a breakpoint or executing single step instructions or the MPLAB IDE being run in simulator mode. Node MPLAB IDE project component. NOP No Operation. An instruction that has no effect when executed except to advance the program counter. 2000 Microchip Technology Inc. DS51184D-page 83 MPLAB ICD User's Guide Object Code The intermediate code that is produced from the source code after it is processed by an assembler or compiler. Relocatable code is code produced by the MPASM assembler or MPLAB CXX that can be run through the MPLINK object linker to create executable code. Object code is contained in an object file. Object File A module which may contain relocatable code or data and references to external code or data. Typically, multiple object modules are linked to form a single executable output. Special directives are required in the source code when generating an object file. The object file contains object code. Object File Directives Directives that are used only when creating an object file. Off-Chip Memory (PIC17CXXX and PIC18CXXX Devices Only) Off-chip memory refers to the memory selection option for the PIC17CXXX or PIC18CXXX device where memory may reside on the target board or where all program memory may be supplied by the Emulator. The Memory tab accessed from Options > Development Mode provides the Off-Chip Memory selection dialog box. Opcode Operational Code. See Mnemonics. Operators Arithmetic symbols, like the plus sign `+' and the minus sign `-', that are used when forming well-defined expressions. Each operator has an assigned precedence. Pass Counter A counter that decrements each time an event (such as the execution of an instruction at a particular address) occurs. When the pass count value reaches zero, the event is satisfied. You can assign the Pass Counter to break and trace logic, and to any sequential event in the complex trigger dialog. PC Personal Computer or Program Counter. PC Host Any IBM or compatible Personal Computer running Windows 3.1x or Windows 95/98, Windows NT or Windows 2000. MPLAB IDE runs on 486 or higher machines. PICmicro MCUs PICmicro microcontrollers (MCUs) refers to all Microchip microcontroller families. DS51184D-page 84 2000 Microchip Technology Inc. Glossary PICMASTER Emulator The hardware unit that provides tools for emulating and debugging firmware applications. This unit contains emulation memory, breakpoint logic, counters, timers, and a trace analyzer among some of its tools. MPLAB ICE is the newest emulator from Microchip. PICSTART Plus A device programmer from Microchip. Programs 8-, 14-, 28-, and 40-pin PICmicro MCUs. Must be used with the MPLAB IDE software. Pod The external emulator box that contains emulation memory, trace memory, event and cycle timers, and trace/breakpoint logic. Occasionally used as an abbreviated name for the MPLAB ICE emulator. Power-on-Reset Emulation A software randomization process that writes random values in data RAM areas to simulate uninitialized values in RAM upon initial power application. Precedence The concept that some elements of an expression are evaluated before others; i.e., * and / before + and -. In the MPASM assembler, operators of the same precedence are evaluated from left to right. Use parentheses to alter the order of evaluation. Program Counter A register that specifies the current execution address. Program Memory The memory area in a PICmicro MCU where instructions are stored. Memory in the emulator or simulator containing the downloaded target application firmware. Programmer A device used to program electrically programmable semiconductor devices such as microcontrollers. Project A set of source files and instructions to build the object and executable code for an application. PRO MATE Programmer A device programmer from Microchip. Programs all PICmicro MCUs and most memory and KEELOQ devices. Can be used with the MPLAB IDE or standalone. Prototype System A term referring to a user's target application or target board. 2000 Microchip Technology Inc. DS51184D-page 85 MPLAB ICD User's Guide PWM Signals Pulse Width Modulation Signals. Certain PICmicro MCU devices have a PWM peripheral. Qualifier An address or an address range used by the Pass Counter or as an event before another operation in a complex trigger. Radix The number base, hex or decimal, used in specifying an address and for entering data in the Window > Modify command. RAM Random Access Memory (Data Memory). Raw Data The binary representation of code or data associated with a section. Real-Time When released from the halt state in the emulator or MPLAB ICD mode, the processor runs in real-time mode and behaves exactly as the normal chip would behave. In real-time mode, the real-time trace buffer of the MPLAB ICE is enabled and constantly captures all selected cycles, and all break logic is enabled. In the emulator or MPLAB ICD, the processor executes in real-time until a valid breakpoint causes a halt or until the user halts the emulator. In the simulator real-time simply means execution of the microcontroller instructions as fast as they can be simulated by the host CPU. Recursion The concept that a function or macro, having been defined, can call itself. Great care should be taken when writing recursive macros; it is easy to get caught in an infinite loop where there will be no exit from the recursion. Relocatable Section A section whose address is not fixed (absolute). The linker assigns addresses to relocatable sections through a process called relocation. Relocation A process performed by the linker in which absolute addresses are assigned to relocatable sections and all identifier symbol definitions within the relocatable sections are updated to their new addresses. ROM Read Only Memory (Program Memory). Run The command that releases the emulator from halt, allowing it to run the application code and change or respond to I/O in real time. DS51184D-page 86 2000 Microchip Technology Inc. Glossary Section An portion of code or data which has a name, size, and address. SFR Special Function Registers of a PICmicro MCU. Shared Section A section which resides in a shared (non-banked) region of data RAM. Shell The MPASM shell is a prompted input interface to the macro assembler. There are two MPASM shells: one for the DOS version and one for the Windows version. Simulator A software program that models the operation of the PICmicro MCU. Single Step This command steps though code, one instruction at a time. After each instruction, the MPLAB IDE updates register windows, watch variables, and status displays so you can analyze and debug instruction execution. You can also single step C compiler source code, but instead of executing single instructions, the MPLAB IDE will execute all assembly level instructions generated by the line of the high level C statement. Skew The information associated with the execution of an instruction appears on the processor bus at different times. For example, the executed opcode appears on the bus as a fetch during the execution of the previous instruction, the source data address and value and the destination data address appear when the opcode is actually executed, and the destination data value appears when the next instruction is executed. The trace buffer captures the information that is on the bus at one instance. Therefore, one trace buffer entry will contain execution information for three instructions. The number of captured cycles from one piece of information to another for a single instruction execution is referred to as the skew. Skid When a hardware breakpoint is used to halt the processor, one or more additional instructions may be executed before the processor halts. The number of extra instructions executed after the intended breakpoint is referred to as the skid. Source Code Assembly Source code consists of PICmicro MCU instructions and MPASM directives and macros that will be translated into machine code by an assembler. 2000 Microchip Technology Inc. DS51184D-page 87 MPLAB ICD User's Guide Source Code C A program written in the high level language called "C" which will be converted into PICmicro MCU machine code by a compiler. Machine code is suitable for use by a PICmicro MCU or Microchip development system product like MPLAB IDE. Source File Assembly The ASCII text file of PICmicro MCU instructions and MPASM directives and macros (source code) that will be translated into machine code by an assembler. It is an ASCII file that can be created using any ASCII text editor. Source File C The ASCII text file containing C source code that will be translated into machine code by a compiler. It is an ASCII file that can be created using any ASCII text editor. Special Function Registers Registers that control I/O processor functions, I/O status, timers or other modes or peripherals. Stack Hardware An area in PICmicro MCU memory where function arguments, return values, local variables, and return addresses are stored; i.e., a "Push-Down" list of calling routines. Each time a PICmicro MCU executes a CALL or responds to an interrupt, the software pushes the return address to the stack. A return command pops the address from the stack and puts it in the program counter. The PIC18CXXX family also has a hardware stack to store register values for "fast" interrupts. Stack Software The compiler uses a software stack for storing local variables and for passing arguments to and returning values from functions. Static RAM or SRAM Static Random Access Memory. Program memory you can Read/Write on the target board that does not need refreshing frequently. Status Bar The Status Bar is located on the bottom of the MPLAB IDE window and indicates such current information as cursor position, development mode and device, and active tool bar. Step Into This command is the same as Single Step. Step Into (as opposed to Step Over) follows a CALL instruction into a subroutine. DS51184D-page 88 2000 Microchip Technology Inc. Glossary Step Over Step Over allows you to debug code without stepping into subroutines. When stepping over a CALL instruction, the next breakpoint will be set at the instruction after the CALL. If for some reason the subroutine gets into an endless loop or does not return properly, the next breakpoint will never be reached. The Step Over command is the same as Single Step except for its handling of CALL instructions. Stimulus Data generated to exercise the response of simulation to external signals. Often the data is put into the form of a list of actions in a text file. Stimulus may be asynchronous, synchronous (pin), clocked and register. Stopwatch A counter for measuring execution cycles. Symbol A symbol is a general purpose mechanism for describing the various pieces which comprise a program. These pieces include function names, variable names, section names, file names, struct/enum/union tag names, etc. Symbols in the MPLAB IDE refer mainly to variable names, function names and assembly labels. System Button The system button is another name for the system window control. Clicking on the system button pops up the system menu. System Window Control The system window control is located in the upper left corner of windows and some dialogs. Clicking on this control usually pops up a menu that has the items "Minimize," "Maximize," and "Close." In some MPLAB IDE windows, additional modes or functions can be found. system window control Figure G1: System Window Control Menu Watch Window 2000 Microchip Technology Inc. DS51184D-page 89 MPLAB ICD User's Guide Target Refers to user hardware. Target Application Firmware residing on the target board. Target Board The circuitry and programmable device that makes up the target application. Target Processor The microcontroller device on the target application board that is being emulated. Template Lines of text that you build for inserting into your files at a later time. The MPLAB Editor stores templates in template files. Tool Bar A row or column of icons that you can click on to execute the MPLAB IDE functions. Trace An emulator or simulator function that logs program execution. The emulator logs program execution into its trace buffer which is uploaded to the MPLAB IDE's trace window. Trace Memory Trace memory contained within the emulator. Trace memory is sometimes called the trace buffer. Trigger Output Trigger output refers to an emulator output signal that can be generated at any address or address range, and is independent of the trace and breakpoint settings. Any number of trigger output points can be set. Unassigned Section A section which has not been assigned to a specific target memory block in the linker command file. The linker must find a target memory block in which to allocate an unassigned section. Uninitialized Data Data which is defined without an initial value. In C, int myVar; defines a variable which will reside in an uninitialized data section. Upload The Upload function transfers data from a tool, such as an emulator or programmer, to the host PC or from the target board to the emulator. Warning An alert that is provided to warn you of a situation that would cause physical damage to a device, software file or equipment. DS51184D-page 90 2000 Microchip Technology Inc. Glossary Watchdog Timer (WDT) A timer on a PICmicro MCU that resets the processor after a selectable length of time. The WDT is enabled or disabled and set up using configuration bits. Watch Variable A variable that you may monitor during a debugging session in a watch window. Watch Window Watch windows contain a list of watch variables that are updated at each breakpoint. 2000 Microchip Technology Inc. DS51184D-page 91 MPLAB ICD User's Guide NOTES: DS51184D-page 92 2000 Microchip Technology Inc. MPLAB ICD USER'S GUIDE Index A A/D Converter ................................................. 34 Absolute Section ............................................ 75 Access RAM ................................................... 75 Address Ranges ............................................. 49 Analog Input ................................................... 69 Animate .......................................................... 54 Assembler ...................................................... 75 Assigned Section ............................................ 76 B Basic Functions .............................................. 53 Baud Rate ...................................................... 45 Blank Check a Device .................................... 50 Breakpoints ........................................ 34, 36, 55 Break on Address Match .......................... 55 Break on User Halt ................................... 55 Hardware ................................................. 76 Software ................................................... 76 Brown Out Detection ...................................... 48 C Calibration Memory ........................................ 76 CD-ROM ........................................................... 4 Checksum ...................................................... 48 Code Protection .............................................. 48 COM Port ....................................................... 45 Command Line Interface ................................ 76 Common Problems ......................................... 57 Communications ....................................... 57, 59 Compiler ......................................................... 76 Components, System ..................................... 11 Configuration Bits ......................... 31, 48, 49, 77 Connection ..................................................... 68 Creating a Hex File ......................................... 21 Customer Notification Service .......................... 6 Customer Support ............................................ 8 D Data Memory .................................................. 77 Debug Code ............................................. 10, 53 Debug Mode ............................................. 50, 59 Debugging ...................................................... 34 Debugging Procedure .................................... 56 Demo Board ........................... 11, 13, 16, 33, 68 Development Mode ........................................ 52 Device Selection ....................................... 31, 48 DIP Switches .................................................. 68 Directives ........................................................ 77 Control ...................................................... 77 Data .......................................................... 77 Listing ....................................................... 81 Macro ....................................................... 81 Object File ................................................ 84 Displaying Voltages ........................................ 49 Documentation Conventions ............................................... 2 Layout ........................................................ 1 Updates ...................................................... 3 E EEPROM ........................................................ 77 EEPROM Data ................................................ 49 Emulator ......................................................... 77 Enabling Debug Mode .................................... 50 Erase .............................................................. 50 Erasing Before Programming ......................... 49 Executable Code ............................................ 78 Export ............................................................. 78 Expressions .................................................... 78 Extended Microcontroller Mode ...................... 78 External Inputs ....................................................... 78 Linkage ..................................................... 78 Memory .................................................... 78 Symbol ..................................................... 78 F Features ............................................................ 9 File, Listing ...................................................... 81 Flash Memory Write Options .......................... 48 Frequency ....................................................... 46 Function Buttons ....................................... 32, 50 G Getting Started ................................................ 43 Glossary .......................................................... 75 H Hardware ........................................................ 61 Installation ................................................ 15 Header .......................................... 11, 13, 15, 61 2000 Microchip Technology Inc. DS51184D-page 93 MPLAB ICD User's Guide Hex Code ........................................................ 79 Hex File Creating .................................................... 21 Loading ..................................................... 56 I ICD .............................................................. 9, 79 ICD Connection .............................................. 68 ICD Options Dialog ................................... 30, 47 ICD Status ...................................................... 45 ICE .................................................................. 80 ID Codes ......................................................... 48 ID Locations .................................................... 49 ID's and Checksum ......................................... 31 IDE .................................................................. 80 Import ..............................................................80 Initialized Data ................................................80 Installation .......................................................15 Internal Linkage ..................................................... 80 Internet Address ............................................... 5 L LED ................................................................. 68 Librarian .......................................................... 80 Library ............................................................. 80 Linker ..............................................................80 Linker Script Files ...........................................80 Listing File .......................................................81 Loading the Hex File ....................................... 56 Local Label ..................................................... 81 Logic Probes ................................................... 81 Low-Voltage Program ..................................... 48 Low-Voltage Programming .............................10 M MCU ................................................................ 81 Memory Calibration ................................................76 Data .......................................................... 77 Program .................................................... 85 Trace ........................................................ 90 Memory Models .............................................. 81 Microchip Internet Web Site .............................. 5 Microcontroller Mode ...................................... 82 Microprocessor Mode ..................................... 82 Mnemonics ..................................................... 82 Modifying the Program ....................................55 Module .................................... 11, 13, 16, 17, 61 MPASM Assembler ................................... 75, 82 MPLAB CXX ................................................... 82 MPLAB ICD ................................................ 9, 82 Resources Used ....................................... 10 MPLAB ICD Operating System Downloading ............................................. 50 MPLAB ICE ..................................................... 82 MPLAB IDE .....................................................83 MPLAB SIM .....................................................83 MPLAB, Running .......................................20, 43 MPLAB-ICD Tutorial ........................................19 MPLIB Object Librarian .............................80, 83 MPLINK Object Linker ...............................80, 83 O Object Code ....................................................84 Off-Chip Memory .............................................84 Opcode ............................................................84 Operating Frequency ......................................46 Operators ........................................................84 Oscillator Options ......................................48, 69 P Pass Counter ..................................................84 PICMASTER Emulator ....................................85 PICmicro ...................................................87, 88 PICSTART Plus ..............................................85 Power Supply ..................................................68 Power Up Timer ..............................................48 Precedence .....................................................85 PRO MATE Programmer ................................85 Processor Sockets ..........................................68 Program ..........................................................50 Program Counter .............................................85 Program Execution ..........................................54 Program Memory ......................................10, 85 Program Options .......................................32, 49 Programmer ....................................................85 Programming ...................................................32 Configuration Bits .....................................49 EEPROM Data .........................................49 Erase All Before Programming .................49 ID Locations ..............................................49 Project .............................................................85 Pushbutton Switches .......................................69 Q Qualifier ...........................................................86 R Radix ...............................................................86 Read ................................................................50 Reading, Recommended ..................................4 Real-Time ..................................................54, 86 Reconnecting ..................................................46 Relocatable Section ........................................86 Reserved Resources .......................................10 Resources Used by MPLAB ICD ....................10 RS-232 ............................................................69 Run Mode ........................................................54 DS51184D-page 94 2000 Microchip Technology Inc. Index S Schematics ............................................... 61, 69 Section ........................................................... 87 Absolute ................................................... 75 Assigned .................................................. 76 Relocatable .............................................. 86 Shared ..................................................... 87 Unassigned .............................................. 90 Selecting Oscillator Options ........................... 48 Selecting the Device ....................................... 48 Selecting Watchdog Timer Options ................ 48 Self Test ......................................................... 50 Serial Port ....................................................... 69 Shared Section ............................................... 87 Silkscreens ............................................... 61, 69 Simulator ........................................................ 87 Single Step ................................... 54, 59, 60, 87 Skew ............................................................... 87 Skid ................................................................ 87 Source Code, Assembly ................................. 87 Source Code, C .............................................. 88 Specifying an Address Range ........................ 49 Stack .............................................................. 10 Stack, Hardware ............................................. 88 Stack, Software .............................................. 88 Start and End Addresses ............................... 49 Status ............................................................. 45 Stimulus .......................................................... 89 Stopwatch ....................................................... 89 Switches, DIP ................................................. 68 Switches, Pushbutton ..................................... 69 Symbol ........................................................... 89 System Button, Windows ............................... 89 System Window Control ................................. 89 T Target ............................................................. 90 Trace Memory ................................................ 90 TRGIN ............................................................ 78 Trigger In .............................................................. 78 Troubleshooting .............................................. 57 Tut877 ............................................................ 19 Main Routine ............................................ 39 Source Code ............................................ 40 Tutorial ........................................................... 19 U Unassigned Section ....................................... 90 Uninitialized Data ........................................... 90 Upload Options ............................................... 45 Use Checksum as ID ...................................... 48 Using Breakpoints .......................................... 55 V Verify .............................................................. 50 Voltages .................................................... 31, 49 W Warranty Registration ....................................... 3 Watch Window .................................... 36, 38, 91 Watchdog Timer ............................................. 48 Watchdog Timer (WDT) .................................. 91 Write to EECON ............................................. 48 WWW Address ................................................. 5 2000 Microchip Technology Inc. DS51184D-page 95 MPLAB ICD User's Guide NOTES: DS51184D-page 96 2000 Microchip Technology Inc. Index NOTES: 2000 Microchip Technology Inc. DS51184D-page 97 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: 480-792-7627 Web Address: http://www.microchip.com ASIA/PACIFIC China - Beijing Microchip Technology Beijing Office Unit 915 New China Hong Kong Manhattan Bldg. No. 6 Chaoyangmen Beidajie Beijing, 100027, No. China Tel: 86-10-85282100 Fax: 86-10-85282104 ASIA/PACIFIC (continued) Singapore Microchip Technology Singapore Pte Ltd. 200 Middle Road #07-02 Prime Centre Singapore, 188980 Tel: 65-334-8870 Fax: 65-334-8850 Rocky Mountain 2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 480-792-7966 Fax: 480-792-7456 Taiwan Microchip Technology Taiwan 11F-3, No. 207 Tung Hua North Road Taipei, 105, Taiwan Tel: 886-2-2717-7175 Fax: 886-2-2545-0139 China - Shanghai Microchip Technology Shanghai Office Room 701, Bldg. B Far East International Plaza No. 317 Xian Xia Road Shanghai, 200051 Tel: 86-21-6275-5700 Fax: 86-21-6275-5060 Atlanta 500 Sugar Mill Road, Suite 200B Atlanta, GA 30350 Tel: 770-640-0034 Fax: 770-640-0307 EUROPE Denmark Microchip Technology Denmark ApS Regus Business Centre Lautrup hoj 1-3 Ballerup DK-2750 Denmark Tel: 45 4420 9895 Fax: 45 4420 9910 Boston 2 Lan Drive, Suite 120 Westford, MA 01886 Tel: 978-692-3838 Fax: 978-692-3821 Hong Kong Microchip Asia Pacific RM 2101, Tower 2, Metroplaza 223 Hing Fong Road Kwai Fong, N.T., Hong Kong Tel: 852-2401-1200 Fax: 852-2401-3431 Chicago 333 Pierce Road, Suite 180 Itasca, IL 60143 Tel: 630-285-0071 Fax: 630-285-0075 India Microchip Technology Inc. India Liaison Office Divyasree Chambers 1 Floor, Wing A (A3/A4) No. 11, O'Shaugnessey Road Bangalore, 560 025, India Tel: 91-80-2290061 Fax: 91-80-2290062 France Arizona Microchip Technology SARL Parc d'Activite du Moulin de Massy 43 Rue du Saule Trapu Batiment A - ler Etage 91300 Massy, France Tel: 33-1-69-53-63-20 Fax: 33-1-69-30-90-79 Dallas 4570 Westgrove Drive, Suite 160 Addison, TX 75001 Tel: 972-818-7423 Fax: 972-818-2924 Dayton Two Prestige Place, Suite 130 Miamisburg, OH 45342 Tel: 937-291-1654 Fax: 937-291-9175 Germany Arizona Microchip Technology GmbH Gustav-Heinemann Ring 125 D-81739 Munich, Germany Tel: 49-89-627-144 0 Fax: 49-89-627-144-44 Japan Microchip Technology Intl. Inc. Benex S-1 6F 3-18-20, Shinyokohama Kohoku-Ku, Yokohama-shi Kanagawa, 222-0033, Japan Tel: 81-45-471- 6166 Fax: 81-45-471-6122 Detroit Tri-Atria Office Building 32255 Northwestern Highway, Suite 190 Farmington Hills, MI 48334 Tel: 248-538-2250 Fax: 248-538-2260 Italy Arizona Microchip Technology SRL Centro Direzionale Colleoni Palazzo Taurus 1 V. Le Colleoni 1 20041 Agrate Brianza Milan, Italy Tel: 39-039-65791-1 Fax: 39-039-6899883 Korea Microchip Technology Korea 168-1, Youngbo Bldg. 3 Floor Samsung-Dong, Kangnam-Ku Seoul, Korea Tel: 82-2-554-7200 Fax: 82-2-558-5934 Los Angeles 18201 Von Karman, Suite 1090 Irvine, CA 92612 Tel: 949-263-1888 Fax: 949-263-1338 United Kingdom Arizona Microchip Technology Ltd. 505 Eskdale Road Winnersh Triangle Wokingham Berkshire, England RG41 5TU Tel: 44 118 921 5869 Fax: 44-118 921-5820 10/01/00 New York 150 Motor Parkway, Suite 202 Hauppauge, NY 11788 Tel: 631-273-5305 Fax: 631-273-5335 San Jose Microchip Technology Inc. 2107 North First Street, Suite 590 San Jose, CA 95131 Tel: 408-436-7950 Fax: 408-436-7955 Toronto 6285 Northam Drive, Suite 108 Mississauga, Ontario L4V 1X5, Canada Tel: 905-673-0699 Fax: 905-673-6509 Microchip received QS-9000 quality system certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona in July 1999. The Company's quality system processes and procedures are QS-9000 compliant for its PICmicro 8-bit MCUs, KEELOQ code hopping devices, Serial EEPROMs and microperipheral products. In addition, Microchip's quality system for the design and manufacture of development systems is ISO 9001 certified. All rights reserved. 2000 Microchip Technology Incorporated. Printed in the USA. 10/00 Printed on recycled paper. Information contained in this publication regarding device applications and the like is intended through suggestion only and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. No representation or warranty is given and no liability is assumed by Microchip Technology Incorporated with respect to the accuracy or use of such information, or infringement of patents or other intellectual property rights arising from such use or otherwise. Use of Microchip's products as critical components in life support systems is not authorized except with express written approval by Microchip. No licenses are conveyed, implicitly or otherwise, except as maybe explicitly expressed herein, under any intellectual property rights. The Microchip logo and name are registered trademarks of Microchip Technology Inc. in the U.S.A. and other countries. All rights reserved. All other trademarks mentioned herein are the property of their respective companies. DS51184D-page 98 2000 Microchip Technology Inc.

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UMass (Amherst) - ECE - 697
ECE 697J Midterm ExamName:_Maximum Question 1 Question 2 Question 3 Question 4 Question 5 Question 6 Question 7 Total 12 12 12 30 14 8 12 100AchievedPlease write legibly! Be concise. Unreadable answers will not be graded. Time: 75 minutes.Q
UMass (Amherst) - ECE - 697
Active source routing for ad-hoc network: seamless integration of wireless environment1. IntroductionActive networking is the emerging technology that will provide new network environment where lots of potential applications can be enhanced and dev
UMass (Amherst) - ECE - 697
Active source routing for ad-hoc network: seamless integration of wireless environmentYoungsuk JunIntroductionn n nnHeterogeneous network environment There is no one size fits all solution Need to offer seamless and ubiquitous service Combin
UMass (Amherst) - ECE - 697
Security vulnerabilities in the Internet and possible solutions1. Introduction The foundation of today's Internet is the TCP/IP protocol suite. Since the time when these specifications were finished in early 1980's, the Internet has grown from a net
UMass (Amherst) - ECE - 697
Security vulnerabilities in the Internet and possible solutionsPresentation by Hemant KumarHistoryl l lTCP/IP Suite designed in early 1980s No thought to security With widespread usage comes widespread abuseAttacks on TCP/IPlSYN-Flood, Sm
UMass (Amherst) - ECE - 697
ECE 697J Advanced Topics in Computer NetworksNetwork Processor Architectures 10/16/03Tilman Wolf1NP Architectures Last class: Discussion of various functionalities that NP should implement Question of general-purpose vs. hardware implement
UMass (Amherst) - ECE - 697
ECE 697J Advanced Topics in Computer NetworksSwitching Fabrics 10/02/03Tilman Wolf1Router Data Path Last class: Single CPU is not fast enough for processing packets Multiple advanced processors in processing engine Each port with processi
UMass (Amherst) - ECE - 697
ECE 697J Advanced Topics in Computer NetworksCourse Summary 12/04/03Tilman Wolf1Final Projects Any questions? Please send slides by Tuesday noon via email Or bring it on memory stick or CD (not diskette) What I am looking for A good ide
UMass (Amherst) - ECE - 697
ECE 697J Advanced Topics in Computer NetworksDesign Trade-Offs in Network Processors 10/23/03Tilman Wolf1NP Architectures Numerous different design goals Performance Cost Functionality Programmability Use of parallelism Types of memo
UMass (Amherst) - ECE - 697
ECE 697J Advanced Topics in Computer NetworksNetwork Measurement 12/02/03Tilman Wolf1Overview Lab 3 requires performance measurement Throughput Collecting of packet headers Network Measurement Active measurement Tools Passive measure
UMass (Amherst) - ECE - 697
ECE 697J - Advanced Topics in Computer NetworksMicroengine Programming II 11/20/031Previous Class Basic introduction to microengine assembly Syntax Register allocation Scope Macros2Specialized Memory Operations Memory hierarchy SDRAM
UMass (Amherst) - ECE - 697
ECE 697J Advanced Topics in Computer NetworksHardware-Based Router Architectures 9/30/03Tilman Wolf1Traditional Software Router System architecture so far: Problem: single CPU bottleneck Limited aggregated data rateTilman Wolf2Aggre
UMass (Amherst) - ECE - 697
ECE 697J Advanced Topics in Computer NetworksDesign Basics of Network Processors 10/14/03Tilman Wolf1Network Processors Programmable packet processing engines Programmability provides flexibility for new applications Parallelism to achieve
UMass (Amherst) - ECE - 697
ECE 697J Advanced Topics in Computer NetworksActive Networks 10/09/03Tilman Wolf1Dynamic Functionality Networks implement various packet processing functions These applications change over time New protocols New application Etc. We nee
UMass (Amherst) - ECE - 697
ECE 697J Advanced Topics in Computer NetworksNetworking Introduction 9/9/03Tilman Wolf1Network Protocols Why are several network protocols necessary? Different protocols solve different problems Need a mix of functionality depending on app
UMass (Amherst) - ECE - 697
ECE 697J - Advanced Topics in Computer NetworksPacket Processing III 9/18/031Packet Processing Functions Basic network system functionality Address lookup Error detection and correction Fragmentation/re-assembly Queuing Scheduling Sec
UMass (Amherst) - ECE - 354
ECE 354 Lab 5: Compiling to PIC and TI-DSPPart I Compiling to the PICIn this part of the lab you are to write a bubble sort routine in C as well as in assembler. You will use the PIC C compiler to compile your C code to assembly and then run the
UMass (Amherst) - ECE - 697
ECE697AA Computer NetworksFall 2008 Course ProjectProf. WolfFor the course project, you may choose to do one of the following: A ONL-based project A literature review project Detailed instructions are below. The project report for either assig
UMass (Amherst) - ECE - 697
ECE697AA Final ExamSpring 2008Prof. WolfName: ID Number:_ _Maximum Question 1 Question 2 Question 3 Question 4 Question 5 Question 6 Total 16 10 10 16 16 12 80AchievedThis exam is closed book, closed notes. Three pages of notes are allow
UMass (Amherst) - ECE - 354
ECE 354 Lab 3: Connecting the PIC to SRAMIn this lab, the PIC will be connected to external memory (SRAM). You will use simplified version of the PIC-PLD bus from Lab 2 to communicate with the PLD, which in turn manages the control signals for the
UMass (Amherst) - ECE - 354
ECE 354 Lab 4: Analog CommunicationThis lab uses the A/D and D/A converter that is integrated in the PIC to build an analog communication system. Two PICs will be connected to terminal and each other via a low-pass filter. The PIC shown on the left
UMass (Amherst) - ECE - 697
ECE697AA Computer NetworksFall 2008 Lab 1Prof. WolfPlease answer the following questions and submit your lab report electronically on SPARK by October 31, 2007 11:59 p.m. Grading will be based on the rubric posted on the course website.Pre-Lab
UMass (Amherst) - ECE - 354
ECE 354 Lab 1: Serial Interface to a TerminalIn this lab assignment you will learn how to interface a Microchip PIC 16F877 to a terminal which contains a keyboard and a CRT display. The amount of hardware required to complete the lab will be fairly
UMass (Amherst) - ECE - 354
ECE 354 Computer Systems Lab IIInterrupts, Strings, and BussesFun Fact Press release from Microchip: Microchip Technology Inc. announced it provides PICmicro field-programmable microcontrollers and system supervisors for the Segway Human Transpo
UMass (Amherst) - ECE - 354
ECE 354 Computer Systems Lab IIMemory and Indirect AddressingComments Lab report for lab 1 Schematics Label pins used on all chips Use standard chip names/numbers (DB25,SP-233) from the datasheet Use standard symbols for LEDs, switches, volt
UMass (Amherst) - ECE - 354
ECE 354 Computer Systems Lab IID/A and A/D ConversionLabs Etc. Lab 2 reports graded Lab 3 Demos Thursday and Friday Have logic analyzer printout for SRAM read &amp; write Reports due Thursday next week Lab 4 quiz Starts 4/22 (Thursday next we
UMass (Amherst) - ECE - 354
ECE 354 Computer Systems Lab IIMicrocontroller ArchitectureTilman WolfIntroduction Lab Difference between IDE and ICD? Steps to change code? Demo board MPLAB softwareTilman WolfLab Hours The Marston 228 Lab is open: Mondays 2:30 - 7:0
UMass (Amherst) - ECE - 354
ECE354 Computer Systems Lab IIJanuary 28th, 2004Welcome! Course: ECE 354 Computer Systems Lab II Classes: Monday &amp; Wednesday 2:30 5:30, Marston 132 &amp; 228 Additional Lab times TBA Course homepage: http:/www.ecs.umass.edu/ece/wolf/courses/
UMass (Amherst) - ECE - 354
ECE 354 Assembly Tutorial02/04/03Ramaswamy RamaswamyOutline Scope PIC 16F877 architecture overview PIC assembly Instruction set examples Assembler directives Subroutines Interrupts Common code examplesRamaswamy RamaswamyReference Ma
UMass (Amherst) - ECE - 354
ECE 354 Computer Systems Lab IICompilation for PIC and DSPsExam Generally, it went well Max 92, avg 72, min 41 Grades are relative Solutions Available in lab If you have any questions about the grading, see me.2Lab 5 Lab 5 is an INDI
UMass (Amherst) - ECE - 354
ECE 354 Introduction LabIn this lab you will familiarize yourself with the MPLAB Integrated Development Environment (IDE) and the MPLAB In-Circuit Debugger. You will learn how to setup projects, simulate code, and debug code while it is running on
UMass (Amherst) - ECE - 354
TMS320C6201 FIXED POINT DIGITAL SIGNAL PROCESSORSPRS051G JANUARY 1997 REVISED NOVEMBER 2000D High-Performance Fixed-Point DigitalSignal Processor (DSP) TMS320C6201 5-ns Instruction Cycle Time 200-MHz Clock Rate Eight 32-Bit Instructions/Cycl
UMass (Amherst) - ECE - 584
Ansoft Designer Tutorial ECE 584 October, 2004This tutorial will serve as an introduction to the Ansoft Designer Microwave CAD package by stepping through a simple design problem. Please note that there is a link to the Ansoft Designer Student Versi
UMass (Amherst) - ECE - 584
ECE 584 Microwave Engineering Laboratory NotebookD. M. PozarE. J. Knapp 2004 Modified Fall, 2004 by J. B. MeadElectrical and Computer Engineering University of Massachusetts at AmherstContentsI. Introduction 1. 2. 3. 4. II. General Comments
UMass (Amherst) - ECE - 568
WinDLX Tutorial A first example2ContentsWinDLX Tutorial.1 Contents..3 Introduction.4 Installation..4 A complete example.5 Starting and configuring WinDLX.5 Loading testprograms.7 Simulating..7 Pipeline window.7 Code window.8 Clock Cycle Diagram
UMass (Amherst) - ECE - 666
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UMass (Amherst) - ECE - 666
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UMass (Amherst) - ECE - 666
ECE 666 Sample ExamUNIVERSITY OF MASSACHUSETTS Department of Electrical and Computer Engineering Computer Arithmetic - Mid-term II Open notes - 120 minutes. Solve all three problems. Write your answers in the provided space. 1. To speed-up the SRT
UMass (Amherst) - ECE - 558
VLSI project ideasECE 658 Fall 2005 Here is a list of projects for 658 (and ambitious 558) students to choose for Lab 4. There are two types, 1) Design and 2) Analysis. Both types will actually involve design and analysis aspects but there will be m
UMass (Amherst) - ECE - 558
EE141Digital Integrated CircuitsA Design PerspectiveJan M. Rabaey Anantha Chandrakasan Borivoje NikolicThe WireThe WireJuly 30, 2002EE141 Digital Integrated Circuits2ndtransmittersreceiversschematicsWires1EE141 Digital Integrated
UMass (Amherst) - ECE - 559
ECE 659 project proposalSheng XuAnalyses jitter due to repeater power supply noise in clock distribution tree1 Abstract: The purpose of this project is to analysis the relation between the jitter and power supply noise of repeaters in clock dist
UMass (Amherst) - ECE - 313
Hint for question 1Use the MATLAB command 1. complex2. angle - to find the phase3. plot - to plot a graphyou can refer to help command in MATLABexample&gt;help angle (press enter)will give you the help for angleHints for 2MATLAB Commandro
UMass (Amherst) - ECE - 221
Homework 71. Mano, 5-11.2. Mano, 5-12.3. In this problem, you will design a simple &quot;three clock pulse&quot; timer circuit. In addition to the clock input, the timer has a &quot;Restart&quot; input (R), two &quot;data&quot; outputs (AB) which indicate the coun
UMass (Amherst) - ECE - 669
&quot;V&quot;architecture to be the fraction of the calability is a common obparallelism inherent in a given algojective in the design ofmulrithm that can be exploited by any tiprocessors, judging by the machine of that architecture as a number of parallel m
UMass (Amherst) - ECE - 669
Limits on Interconnection Network PerformanceAnant Agarwal Laboratory for Computer Science Massachusetts Institute of Technology Cambridge, MA 02139AbstractAs the performance of interconnection networks becomes increasingly limited by physical co
UMass (Amherst) - ECE - 669
Latency Tolerance through Multithreading in Large-Scale MultiprocessorsKiyoshi Kurihara3 David Chaiken, and Anant Agarwal , Laboratory for Computer Science Massachusetts Institute of Technology Cambridge, MA 02139AbstractIn large-scale distribut
UMass (Amherst) - ECE - 669
ECE 669 Parallel Computer ArchitectureLecture 12Interconnection Network PerformanceECE669 L12: Interconnection Network PerformanceMarch 9, 2004Performance Analysis of Interconnection Networks Bandwidth Latency Proportional to diameter L
UMass (Amherst) - ECE - 669
ECE 669 Parallel Computer ArchitectureLecture 18 Scalable Parallel CachesECE669 L18: Scalable Parallel CachesApril 6, 2004Overvie w Most cache protocols are more complicated than two state Snooping not effective for network-based systems Co
UMass (Amherst) - ECE - 669
ECE 669 Parallel Computer ArchitectureLecture 9 Workload EvaluationECE669 L9: Workload EvaluationFebruary 26, 2004Outlin e Evaluation of applications is important Simulation of sample data sets provides important information Working sets in
UMass (Amherst) - ECE - 669
ECE 669 Parallel Computer ArchitectureLecture 7 Resource BalancingECE669 L7: Resource BalancingFebruary 19, 2004Outlin e Last time: qualitative discussion of balance Need for analytic approach Tradeoffs between computation, communication an
UMass (Amherst) - ECE - 669
ECE 669 Parallel Computer ArchitectureLecture 5Grid ComputationsECE669 L5: Grid ComputationsFebruary 12, 2004Outlin e Motivating Problems (application case studies) Classifying problems Parallelizing applications Examining tradeoffs Und
UMass (Amherst) - ECE - 669
ECE 669 Parallel Computer ArchitectureLecture 1Course IntroductionProf. Russell Tessier Department of Electrical and Computer EngineeringECE669 L1: Course IntroductionJanuary 29, 2004Welcome to ECE 669/CA720-A Parallel computer architectur
UMass (Amherst) - ECE - 669
ECE 669 Parallel Computer ArchitectureLecture 27Course Wrap UpECE669 L27: Course Wrap-UpMay 13, 2004Wh at is Parparallel computer is a collection of processing A allel elements that cooperate to solve large problems Arc fast hite ctur Some b
UMass (Amherst) - ECE - 669
aSoC: A Scalable OnChip Communication ArchitectureRussell Tessier, Jian Liang, Andrew Laffely, and Wayne Burleson University of Massachusetts, Amherst Reconfigurable Computing GroupSupported by National Science Foundation Grants CCR081405 and CCR
UMass (Amherst) - ECE - 669
ECE 669 Parallel Computer ArchitectureLecture 23 Parallel CompilationECE669 L23: Parallel CompilationApril 29, 2004Parallel Compilation Two approaches to compilation Parallelize a program manually Sequential code converted to parallel code
UMass (Amherst) - ECE - 669
ECE 669 Parallel Computer ArchitectureLecture 2Architectural PerspectiveECE669 L2: Architectural PerspectiveFebruary 3, 2004Overvie w Increasingly attractive Economics, technology, architecture, application demand Increasingly central an
UMass (Amherst) - ECE - 669
ECE 669 Parallel Computer ArchitectureLecture 19 Processor DesignECE669 L19: Processor DesignApril 8, 2004Overvie w Special features in microprocessors provide support for parallel processing Already discussed bus snooping Memory latency b