SLAA600E June   2013  – January 2024

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
    1. 1.1 Glossary
    2. 1.2 Conventions
  5. 2Implementation
    1. 2.1 Main
    2. 2.2 Application Manager
      1. 2.2.1 Boot and Application Detection
        1. 2.2.1.1 Force Bootloader Mode
        2. 2.2.1.2 Application Validation
        3. 2.2.1.3 Jump to Application
      2. 2.2.2 Vector Redirection
      3. 2.2.3 Interrupt Vectors in Flash Devices
      4. 2.2.4 Dual Image Support
        1. 2.2.4.1 Jumping to Application in Dual Image Mode
    3. 2.3 Memory Interface (MI)
      1. 2.3.1 Dual Image Support
    4. 2.4 Communication Interface (CI)
      1. 2.4.1 Physical-DataLink (PHY-DL)
        1. 2.4.1.1 I2C
          1. 2.4.1.1.1 Time-out Detection
        2. 2.4.1.2 UART
        3. 2.4.1.3 SPI
        4. 2.4.1.4 CC110x
        5. 2.4.1.5 Comm Sharing
      2. 2.4.2 NWK-APP
        1. 2.4.2.1 BSL-Based Protocol
          1. 2.4.2.1.1 Security
          2. 2.4.2.1.2 BSL-Based Protocol using CC110x
          3. 2.4.2.1.3 Examples Using I2C
          4. 2.4.2.1.4 Examples Using UART or CC110x
  6. 3Customization of MSPBoot
    1. 3.1 Predefined Customizations
  7. 4Building MSPBoot
    1. 4.1 Starting a New Project
      1. 4.1.1 Creating a New MSPBoot Project
        1. 4.1.1.1 MSPBootProjectCreator.pl
        2. 4.1.1.2 Importing Project Spec File in CCS
        3. 4.1.1.3 Modifying Generated Source Code
          1. 4.1.1.3.1 Modifying MSPBoot Main.c
          2. 4.1.1.3.2 Modifying TI_MSPBoot_Config.h
          3. 4.1.1.3.3 Modifying TI_MSPBoot_CI_PHYDL_xxxx_xxx.c
          4. 4.1.1.3.4 Modifying TI_MSPBoot_AppMgr.c
          5. 4.1.1.3.5 Modifying Application Main.c
          6. 4.1.1.3.6 Modifying TI_MSPBoot_Mgr_Vectors_xxxx.c
      2. 4.1.2 Loading Application Code With MSPBoot
        1. 4.1.2.1 Convert Application Output Images
    2. 4.2 Examples
      1. 4.2.1 LaunchPad Development Kit Hardware
      2. 4.2.2 CC110x Hardware
      3. 4.2.3 Building the Target Project
      4. 4.2.4 Building the Host Project
      5. 4.2.5 Running the Examples
  8. 5References
  9. 6Revision History

2.4.1.1 I2C

The I2C bus has been one of the most common communication protocols in embedded applications for many years, thanks to its low cost of implementation, robustness, and flexibility. It is a useful interface for low-cost applications that require a simple communication link. It is a perfect match for MSP430 microcontrollers, which combine high performance, high integration, and ultra-low power in a cost-effective solution. The I2C interface is implemented using 7-bit addressing with a predefined address for MSP430 MCUs:

GUID-0D882428-64F1-40F3-90C5-CE5204AB9D90-low.gifFigure 2-7 I2C 7-Bit Addressing Format

The predefined MSP430 MCU address is defined as:

CONFIG_CI_PHYDL_I2C_SLAVE_ADDR = 0x40

Files are included to support USI, G2xx3 USCI, F5xx/6xx USCI, and eUSCI.