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    Front Cover
    Half Title Page
    The Definitive Guide to the ARM Cortex-M3
    Copyright Page
    Table of Contents
    Foreword
    Foreword
    Preface
    Acknowledgments
    Conventions
    Terms and Abbreviations
    Chapter 1. Introduction
    Chapter 2. Overview of the Cortex-M3
    Chapter 3. Cortex-M3 Basics
    Chapter 4. Instruction Sets
    Chapter 5. Memory Systems
    Chapter 6. Cortex-M3 Implementation Overview
    Chapter 7. Exceptions
    Chapter 8. The Nested Vectored Interrupt Controller and Interrupt Control
    Chapter 9. Interrupt Behavior
    Chapter 10. Cortex-M3 Programming
    Chapter 11. Exception Programming
    Chapter 12. Advanced Programming Features and System Behavior
    Chapter 13. The Memory Protection Unit
    Chapter 14. Other Cortex-M3 Features
    Chapter 15. Debug Architecture
    Chapter 16. Debugging Components
    Chapter 17. Getting Started with the Cortex-M3 Processor
    Chapter 18. Porting Applications from the ARM7 to the Cortex-M3
    Chapter 19. Starting Cortex-M3 Development Using the GNU Tool Chain
    19.1Background
    19.2Getting the GNU Tool Chain
    19.3Development Flow
    19.4Examples
    19.5Accessing Special Registers
    19.6Using Unsupported Instructions
    19.7Inline Assembler in the GNU C Compiler
    Chapter 20. Getting Started with the Keil RealView Microcontroller Development Kit
    Chapter 21. Programming the Cortex-M3 Microcontrollers in NI LabVIEW
    Appendix A. The Cortex-M3 Instruction Set, Reference Material
    Appendix B. The 16-Bit Thumb Instructions and Architecture Versions
    Appendix C. Cortex-M3 Exceptions Quick Reference
    Appendix D. Nested Vectored Interrupt Controller and System Control Block Registers Quick Reference
    Appendix E. Cortex-M3 Troubleshooting Guide
    Appendix F. Example Linker Script for CodeSourcery G++
    Appendix G. CMSIS Core Access Functions Reference
    Appendix H. Connectors for Debug and Tracers
    References
    Index
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    Chapter 19. Starting Cortex-M3 Developme... > 19.5Accessing Special Registers - Pg. 304

    304 CHAPTER 19 Starting Cortex-M3 Development Using the GNU Tool Chain // Output character to UART UART0_DATA = mychar; return; } ========== end of file ========== Theretargetingiscarriedoutbyimplementingthe"_write_r"function.Thisfunctioncallsourown characteroutputroutinetodisplaythe"Helloworld"message. 19.4.7 Example 7: Implement Your Own Vector Table IfyouarenotusingCodeSourceryG++toolchain,youmightneedtoimplementyourownvectortable. ThiscanbedonebyusingthefollowingCcode: // Define the vector table __attribute__ ((section("vectors"))) void (* const VectorArray[])(void) = { (void (*)(void))((unsigned long) MainStack + sizeof(MainStack)), Reset_Handler, NMI_Handler, HardFault_Handler