SPRUJ60A April   2024  – October 2024 TMS320F28P550SJ , TMS320F28P559SJ-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Feature Differences Between F280013x/15x and F28P55x
    1. 1.1 F280013x/15x and F28P55x Feature Comparison
  5. 2PCB Hardware Changes
    1. 2.1 PCB Hardware Changes for the 80-Pin PN/PNA, 64-Pin PM Packages
    2. 2.2 80-Pin PNA, 64-Pin PM Migration Between F280013x/15x and F28P55x For New and Existing PCB
  6. 3Feature Differences for System Consideration
    1. 3.1 New Features in F28P55x
      1. 3.1.1  Advance Encryption Standard (AES)
      2. 3.1.2  Universal Serial Bus (USB)
      3. 3.1.3  Configurable Logic Block (CLB)
      4. 3.1.4  Live Firmware Update (LFU)
      5. 3.1.5  Programmable Gain Amplifier (PGA)
      6. 3.1.6  ERAD
      7. 3.1.7  FSI
      8. 3.1.8  5V Failsafe IOs
      9. 3.1.9  Flash Write Protection
      10. 3.1.10 Neural-Network Processing Unit (NPU)
    2. 3.2 Communication Module Changes
    3. 3.3 Control Module Changes
    4. 3.4 Analog Module Differences
    5. 3.5 Other Device Changes
      1. 3.5.1 PLL
      2. 3.5.2 PIE Channel Mapping
      3. 3.5.3 Bootrom
    6. 3.6 Power Management
      1. 3.6.1 LDO/VREG
      2. 3.6.2 POR/BOR
      3. 3.6.3 Power Consumption
    7. 3.7 Memory Module Changes
    8. 3.8 GPIO Multiplexing Changes
    9. 3.9 Analog Multiplexing Changes
  7. 4Application Code Migration From F280013x/15x to F28P55x
    1. 4.1 C2000Ware Header Files
    2. 4.2 Linker Command Files
    3. 4.3 C2000Ware Examples
  8. 5Specific Use Cases Related to F28P55x New Features
    1. 5.1 AES
    2. 5.2 PGA
    3. 5.3 USB
  9. 6EABI Support
    1. 6.1 Flash API
  10. 7References
  11. 8Revision History

3.1.9 Flash Write Protection

The F28P55x device has capability to permanently block the erase or program of 32 flash sectors in both flash banks 0 and 2. After writing specific values to the OTP memory, the corresponding sectors can no longer be erased or programmed. This capability allows the user to create immutable flash regions and along with the DCSM security module can be used to realize new secure code functions, including authentication algorithms. For more information, see the Boot ROM chapter of the TRM.