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

10 SSU Frequently Asked Questions (FAQ)

Table 10-1 SSU Questions and Answers
# Question Answer
1 If modifying an APR during runtime, is it necessary to disable the APR before it is changed? No, it can be changed while it is enabled.
2 What does the LINK2 AP Override Feature do? LINK2 gets read and write (R/W) access to all of the APRs that have been enabled or configured even if LINK2 has not been provided with those permissions.
3 Is LINKID a required field when modifying the range for both code and data APRs? No, LINKID is only required if XE bit is set (code APR).
4 Is it possible to change the START ADDRESS, END ADDRESS, and LINKID fields within the SSU APR registers dynamically during runtime? Yes, it can be updated during runtime. Only LINK2 has access to modify these registers. LINKx_CFG and STACKy_CFG cannot be modified during runtime.
5 If a file is included, as part of a Module configuration, is the entirety of the file getting captured through APRs? Yes, code and variables within the file are set as part of APRs for that LINK through the SSU Tool in SysConfig.