SDAA472 August   2026 MSPM33C321A

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
    1. 1.1 Key Concepts
  5. 2Customer Secure Code Overview
    1. 2.1 Boot and Startup Sequence
    2. 2.2 CSC Flow
    3. 2.3 FLASH Memory Map
    4. 2.4 Bank Swap
    5. 2.5 CSC Feature
      1. 2.5.1 Asymmetric Verification
        1. 2.5.1.1 SHA-256
        2. 2.5.1.2 ECDSA
        3. 2.5.1.3 MLDSA
      2. 2.5.2 Keystore
    6. 2.6 Protection on CSC
      1. 2.6.1 Write Erase Protection
      2. 2.6.2 FLASH Hide Protection
      3. 2.6.3 Data Integrity Verification
      4. 2.6.4 Secure & Privilege Protection
    7. 2.7 CSC Performance
  6. 3Evaluate CSC-based Secure Boot
    1. 3.1 Environment Setup
    2. 3.2 Program CSC
      1. 3.2.1 General
      2. 3.2.2 Step 1 - Building
      3. 3.2.3 Step 2 - Programming
    3. 3.3 Program Application
      1. 3.3.1 General
      2. 3.3.2 Step 1 - Application Image Generation – Image 1 (version 1.0.0, Located at Bank 0 – 0x10000)
      3. 3.3.3 Step 2 - Application Image Generation – Image 2 (version 2.0.0, Located at 0x20000)
      4. 3.3.4 Step 3 - Programming
    4. 3.4 Running the CSC Application
  7. 4Q&A
    1. 4.1 How to Modify the Application Image Version
      1. 4.1.1 Application Image
    2. 4.2 How to Modify the Application Image Address
      1. 4.2.1 Application Image
      2. 4.2.2 Application Image Sign Command
      3. 4.2.3 CSC Example Code
    3. 4.3 How to Modify the Slot Size
      1. 4.3.1 Application Image
      2. 4.3.2 CSC Example Code
    4. 4.4 How to Modify the Application Image Size
      1. 4.4.1 Application Image
      2. 4.4.2 Modification on Slot Size
    5. 4.5 Doing More Customization on Application Image or CSC
  8. 5References
  9. 6Revision History

4.2.3 CSC Example Code

  1. Modify address in customer_secure_config.h. Now user can configure the address using SysConfig.
  2. For example, if the update address is 0x30000. Modify address of primary image from 0x10000 to 0x30000. Modify address of secondary image from 0x90000 to 0xB0000.
    1. Both application images with different versions are built for location 0x30000) but one needs to be flashed at bank0 and another application needs to be flashed at bank1
    2. Bank 0 – 0x00000 + 0x30000 = 0x30000
    3. Bank 1 – 0x80000 + 0x30000 = 0xB0000