TIDUEY4D August   2022  – December 2022

 

  1.   Description
  2.   Resources
  3.   Features
  4.   Applications
  5.   5
  6. 1System Description
    1. 1.1 Key System Specifications
  7. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
      1. 2.2.1 Building Blocks
      2. 2.2.2 Flash Partitioning
      3. 2.2.3 LFU Switchover Concepts
      4. 2.2.4 Application LFU Flow
  8. 3Hardware, Software, Testing Requirements, and Test Results
    1. 3.1 Hardware Requirements
    2. 3.2 Software Requirements
      1. 3.2.1 Software Package Contents
      2. 3.2.2 Software Structure
    3. 3.3 Introduction to the TIDM-DC-DC-BUCK
    4. 3.4 Test Setup
      1. 3.4.1 Loading the Custom Bootloader and Application to Flash using CCS
    5. 3.5 Test Results
      1. 3.5.1 Running the LFU Demo with Control Loop Running on the CPU
      2. 3.5.2 Running the LFU Demo with Control Loop Running on the CLA
      3. 3.5.3 LFU Flow on the CPU
      4. 3.5.4 LFU Flow on the CLA
      5. 3.5.5 Assumptions
      6. 3.5.6 Preparing Firmware for LFU
      7. 3.5.7 LFU Compiler Support
      8. 3.5.8 Robustness
      9. 3.5.9 LFU Use-Cases
  9. 4FOTA Example
    1. 4.1 Abstract
    2. 4.2 Introduction
    3. 4.3 Hardware Requirements
    4. 4.4 Software Requirements
    5. 4.5 Running the example
  10. 5Design and Documentation Support
    1. 5.1 Software Files
    2. 5.2 Documentation Support
    3. 5.3 Support Resources
    4. 5.4 Trademarks
  11. 6Terminology
  12. 7About the Author
  13. 8Revision History

4.1 Abstract

This section illustrates an LFU example on the F28003x, where the firmware executable is always Loaded to Flash Bank1 and Runs from Flash Bank0. A copy from Flash Bank1 to Flash Bank0 occurs after the firmware executable is programmed to Flash Bank1. The advantage of this approach is that users need to maintain only one linker command file for their project, and do not need to keep track of the Flash Bank on which the firmware will run after the LFU operation.

This example can also be used as a reference for FOTA.