SLAU646F September   2015  – June 2020

 

  1.   Read This First
    1.     How to Use This User's Guide
    2.     Related Documentation
    3.     If You Need Assistance
    4.     Trademarks
  2. 1Introduction
  3. 2Installing MSP430 GCC Toolchain
    1. 2.1 Installing MSP430 GCC in CCS Releases Before v7.2
    2. 2.2 Installing MSP430 GCC as Stand-Alone Package
  4. 3Using MSP430 GCC Within CCS
    1. 3.1 Create New Project
    2. 3.2 Debug Using MSP-FET, MSPFET430UIF, eZ-FET, eZ430
    3. 3.3 Build Options for MSP430 GCC
      1. 3.3.1  GNU Compiler
      2. 3.3.2  GNU Compiler: Runtime
      3. 3.3.3  GNU Compiler: Symbols
      4. 3.3.4  GNU Compiler: Directories
      5. 3.3.5  GNU Compiler: Optimization
      6. 3.3.6  GNU Compiler: Preprocessor
      7. 3.3.7  GNU Compiler: Assembler
      8. 3.3.8  GNU Compiler: Debugging
      9. 3.3.9  GNU Compiler: Diagnostic Options
      10. 3.3.10 GNU Compiler: Miscellaneous
      11. 3.3.11 GNU Linker
      12. 3.3.12 GNU Linker: Basic
      13. 3.3.13 GNU Linker: Libraries
      14. 3.3.14 GNU Linker: Symbols
      15. 3.3.15 GNU Linker: Miscellaneous
      16. 3.3.16 GNU Objcopy Utility
    4. 3.4 CCS Compared to MSP430 GCC
  5. 4MSP430 GCC Stand-Alone Package
    1. 4.1 MSP430 GCC Stand-Alone Package Folder Structure
    2. 4.2 Package Content
    3. 4.3 MSP430 GCC Options
    4. 4.4 MSP430 Built-in Functions
    5. 4.5 Using MSP430 GCC Support Files
    6. 4.6 Quick Start: Blink the LED
      1. 4.6.1 Building with a Makefile
      2. 4.6.2 Building Manually with gcc
      3. 4.6.3 Debugging
        1. 4.6.3.1 Starting GDB Agent
          1. 4.6.3.1.1 Using the GUI
          2. 4.6.3.1.2 Using the Command Line
        2. 4.6.3.2 Debugging With GDB
          1. 4.6.3.2.1 Running a Program in the Debugger
          2. 4.6.3.2.2 Setting a Breakpoint
          3. 4.6.3.2.3 Single Stepping
          4. 4.6.3.2.4 Stopping or Interrupting a Running Program
      4. 4.6.4 Creating a New Project
    7. 4.7 GDB Settings
      1. 4.7.1 Console Application
      2. 4.7.2 Optional Parameters for msp430.dat
      3. 4.7.3 GUI Application
      4. 4.7.4 Attaching the Debugger
      5. 4.7.5 Configuring the Target Voltage
      6. 4.7.6 Resetting the Target
      7. 4.7.7 Halting the Target
  6. 5MSP430 GCC Features
    1. 5.1 C/C++ Attributes
      1. 5.1.1 GCC Function Attribute Support
      2. 5.1.2 GCC Data Attribute Support
      3. 5.1.3 GCC Section Attribute Support
    2. 5.2 Hints for Reducing the Size of MSP430 GCC Programs
      1. 5.2.1 The -mtiny-printf Option
      2. 5.2.2 The -ffunction-sections and -fdata-sections Options
      3. 5.2.3 Making Large Programs Fit Across Upper and Lower Memory
      4. 5.2.4 NOP Instructions Surrounding Interrupt State Changes
    3. 5.3 C Runtime Library (CRT) Startup Behavior
    4. 5.4 Using printf with MSP430 GCC
    5. 5.5 Link-time Optimization (LTO)
    6. 5.6 The __int20 Type and Pointers in the Large Memory Model
  7. 6Building MSP430 GCC From Sources
    1. 6.1 Required Tools
    2. 6.2 Building MSP430 GCC (Mitto Systems Limited)
      1. 6.2.1 Building a Native MSP430 GCC Toolchain
      2. 6.2.2 Building the MSP430 GCC Toolchain for Windows
    3. 6.3 Building MSP430 GCC Stand-Alone Full Package
  8. 7MSP430 GCC and MSPGCC
    1. 7.1 Calling Convention
    2. 7.2 Other Portions of the ABI
  9. 8Appendix
    1. 8.1 GCC Intrinsic Support
    2. 8.2 NOP Instructions Required Between Interrupt State Changes
  10. 9References
  11.   Revision History

Building a Native MSP430 GCC Toolchain

Follow these steps to build Mitto MSP430 GCC for Linux and macOS:

  1. Download the source-full tar archive (for example, msp430-gcc-7.3.0.9-source-full.tar.bz2) from the MSP430 GCC page.
  2. Untar the file.
  3. Change to the source-full directory.
  4. Run README-build.sh to build the toolchain.
  5. Build files are in the ./build folder.
  6. Binaries/libs are in the ./install folder.
Note:

An alternative to this process is to use the "source-patches" tar archive (for example, msp430-gcc-7.3.0.9-source-patches.tar.bz2 ) to apply patches to source tars as released by the upstream community.

Versions 7.3.0.9 and later include a script ( README-apply-patches.sh ), which downloads the upstream releases and applies the patches so the sources are ready for building. The README-build.sh script can then be used to build a native toolchain.