SPRADK2A November   2024  – October 2025 F29H850TU , F29H859TU-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1 Introduction
  5. 2 Supplemental Online Information
  6. 3 SSU Overview
  7. 4 Key Concept Definitions
  8. 5 Safety and Security Goals
  9. 6 System Design
  10. 7 Configuring the SSU
    1. 7.1 Flash SECCFG Region
    2. 7.2 SSU Development Life Cycle
    3. 7.3 Using the SysConfig Tool
      1. 7.3.1 Enabling System Security Configuration
      2. 7.3.2 Configuring Application Modules
      3. 7.3.3 Configuring Special Modules
        1. 7.3.3.1 LINK2 Configuration
        2. 7.3.3.2 LINK1 Configuration
        3. 7.3.3.3 Common Code Link Configuration
      4. 7.3.4 Defining Sandboxes
      5. 7.3.5 Adding Shared Memory
  11. 8 Debug Authorization
    1. 8.1 Password-Based Unlock
  12. 9 Debugging the SSU
    1. 9.1 Debugging Build Errors
    2. 9.2 Debugging Runtime Errors
  13. 10SSU Frequently Asked Questions (FAQ)
  14. 11Summary
  15. 12References
  16. 13Revision History

1 Introduction

The Texas Instruments C29 CPU delivers industry-leading performance for real-time control applications. With a 128-bit Very Large Instruction Word (VLIW) architecture, 64-bit fixed-point and floating-point operations, ultra-low latency processing and hardware interrupt prioritization, the C29 is well-equipped to run the most demanding automotive and industrial control applications. The SSU, in concert with the C29 CPU, helps system designers meet the most rigorous modern standards for safety and security in the real-time control applications, without compromising real-time performance. With the SSU, users can achieve true FFI, secure task isolation and advanced debug and firmware update security, while maintaining the same high-speed and low-latency processing needed for the most demanding real-time control systems.

This application note describes how to implement run-time application safety and security in a real-time control system using the C29x CPU and SSU. The C29x, SSU architecture provides dynamic context-sensitive memory protection, secure task isolation with multiple dedicated CPU stack pointers, and multiuser debug ZONEs for security.