44-Pin Demo Board User Guide 41296B | Analog To Digital Converter | Switch

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44-PIN DEMO BOARD USER’S GUIDE © 2007 Microchip Technology Inc. DS41296B Note the following details of the code protection feature on Microchip devices: ã ã Microchip products meet the specification contained in their particular Microchip Data Sheet. Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions. There are dishonest and possibly illegal methods used to breach the
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  © 2007 Microchip Technology Inc.DS41296B 44-PIN DEMO BOARDUSER’S GUIDE  DS41296B-page ii © 2007 Microchip Technology Inc.Information contained in this publication regarding deviceapplications and the like is provided only for your convenienceand may be superseded by updates. It is your responsibility toensure that your application meets with your specifications.MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS ORIMPLIED, WRITTEN OR ORAL, STATUTORY OROTHERWISE, RELATED TO THE INFORMATION,INCLUDING BUT NOT LIMITED TO ITS CONDITION,QUALITY, PERFORMANCE, MERCHANTABILITY ORFITNESS FOR PURPOSE . Microchip disclaims all liabilityarising from this information and its use. Use of Microchipdevices in life support and/or safety applications is entirely atthe buyer’s risk, and the buyer agrees to defend, indemnify andhold harmless Microchip from any and all damages, claims,suits, or expenses resulting from such use. No licenses areconveyed, implicitly or otherwise, under any Microchipintellectual property rights. Note the following details of the code protection feature on Microchip devices: ãMicrochip products meet the specification contained in their particular Microchip Data Sheet.ãMicrochip believes that its family of products is one of the most secure families of its kind on the market today, when used in theintended manner and under normal conditions.ãThere are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to ourknowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s DataSheets. Most likely, the person doing so is engaged in theft of intellectual property.ãMicrochip is willing to work with the customer who is concerned about the integrity of their code.ãNeither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does notmean that we are guaranteeing the product as “unbreakable.”Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of ourproducts. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such actsallow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act. Trademarks The Microchip name and logo, the Microchip logo, Accuron,dsPIC, K EE L OQ , K EE L OQ logo, micro ID , MPLAB, PIC,PICmicro, PICSTART, PROMATE, PowerSmart, rfPIC, andSmartShunt are registered trademarks of MicrochipTechnology Incorporated in the U.S.A. and other countries.AmpLab, FilterLab, Linear Active Thermistor, MigratableMemory, MXDEV, MXLAB, PS logo, SEEVAL, SmartSensorand The Embedded Control Solutions Company areregistered trademarks of Microchip Technology Incorporatedin the U.S.A.Analog-for-the-Digital Age, Application Maestro, CodeGuard,dsPICDEM, dsPICDEM.net, dsPICworks, ECAN,ECONOMONITOR, FanSense, FlexROM, fuzzyLAB,In-Circuit Serial Programming, ICSP, ICEPIC, Mindi, MiWi,MPASM, MPLAB Certified logo, MPLIB, MPLINK, PICkit,PICDEM, PICDEM.net, PICLAB, PICtail, PowerCal,PowerInfo, PowerMate, PowerTool, REAL ICE, rfLAB,rfPICDEM, Select Mode, Smart Serial, SmartTel, TotalEndurance, UNI/O, WiperLock and ZENA are trademarks ofMicrochip Technology Incorporated in the U.S.A. and othercountries.SQTP is a service mark of Microchip Technology Incorporatedin the U.S.A.All other trademarks mentioned herein are property of theirrespective companies. © 2007, Microchip Technology Incorporated, Printed in theU.S.A., All Rights Reserved.Printed on recycled paper. Microchip received ISO/TS-16949:2002 certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona, Gresham, Oregon and Mountain View, California. The Company’s quality system processes and procedures are for its PIC  ®    MCUs and dsPIC  ®  DSCs, K  EE  L OQ  ®    code hopping devices, Serial EEPROMs, microperipherals, nonvolatile memory and analog products. In addition, Microchip’s quality system for the design and manufacture of development systems is ISO 9001:2000 certified.  44-PIN DEMO BOARDUSER’S GUIDE © 2007 Microchip Technology Inc.   DS41296B-page iii Table of Contents Preface ...........................................................................................................................1 Introduction............................................................................................................1Document Layout..................................................................................................1Conventions Used in this Guide............................................................................2Warranty Registration............................................................................................3Recommended Reading........................................................................................3The Microchip Web Site........................................................................................4Development Systems Customer Change Notification Service............................4Customer Support.................................................................................................5Document Revision History...................................................................................5 Chapter 1. 44-Pin Demo Board Overview 1.1 Introduction .....................................................................................................71.2 Highlights ........................................................................................................71.3 Devices Supported by the 44-Pin Demo Board ..............................................71.4 44-Pin Demo Board Overview ........................................................................81.5 Running the Default Demonstration ...............................................................8 Chapter 2. Mid-Range PIC  ®  Microcontroller Architectural Overview 2.1 Introduction......................................................................................................92.2 Memory Organization......................................................................................92.3 Instruction Formats........................................................................................102.4 Assembler Basics..........................................................................................11 Chapter 3. 44-Pin Demo Board Lessons 3.1 Introduction....................................................................................................133.2 44-Pin Demo Board Lessons........................................................................13 3.2.1 Lesson 1: Hello World (Light a LED) .........................................................143.2.2 Blink (Delay Loop) .....................................................................................153.2.3 Lesson 3: Rotate (Move the LED) .............................................................173.2.4 Lesson 4: Analog-to-Digital .......................................................................193.2.5 Lesson 5: Variable Speed Rotate ..............................................................223.2.6 Lesson 6: Switch Debouncing ...................................................................233.2.7 Lesson 7: Reversible Variable Speed Rotate ............................................243.2.8 Lesson 8: Function Calls ...........................................................................263.2.9 Lesson 9: Timer0 .......................................................................................263.2.10 Lesson 10: Interrupts ...............................................................................283.2.11 Lesson 11: Indirect Data Addressing ......................................................303.2.12 Lesson 12: Look-up Table (ROM Array) ..................................................32  44-Pin Demo Board User’s Guide DS41296B-page iv   © 2007 Microchip Technology Inc. Appendix A. Hardware Schematics A.1 Introduction...................................................................................................35 Worldwide Sales and Service......................................................................................3 8
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