SPRUJ59A April   2024  – September 2024 TMS320F28P550SJ , TMS320F28P559SJ-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Feature Differences Between F28003x and F28P55x
    1. 1.1 F28003x and F28P55x Feature Comparison
  5. 2PCB Hardware Changes
    1. 2.1 PCB Hardware Changes for the 100-Pin PZ, 80-Pin PNA and 64-Pin PM Packages
    2. 2.2 100-Pin PZ, 80-Pin PNA and 64-Pin PM Migration Between F28003x and F28P55x For New and Existing PCB
    3. 2.3 GPIO Input Buffer Control Register
  6. 3Feature Differences for System Consideration
    1. 3.1 New Features in F28P55x
      1. 3.1.1 Programmable Gain Amplifier(PGA)
      2. 3.1.2 Universal Serial Bus (USB)
      3. 3.1.3 5V Failsafe IOs
      4. 3.1.4 Flash Write Protection
      5. 3.1.5 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
      4. 3.5.4 SW Libraries Included in the ROM
      5. 3.5.5 AGPIO
    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 F28003x 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 PGA
    2. 5.2 USB
  9. 6EABI Support
    1. 6.1 Flash API
  10. 7References
  11. 8Revision History

3.1.4 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.