SPRACN1 May   2019 TMS320F2800132 , TMS320F2800133 , TMS320F2800135 , TMS320F2800137 , TMS320F2800152-Q1 , TMS320F2800153-Q1 , TMS320F2800154-Q1 , TMS320F2800155 , TMS320F2800155-Q1 , TMS320F2800156-Q1 , TMS320F2800157 , TMS320F2800157-Q1 , TMS320F280021 , TMS320F280021-Q1 , TMS320F280023 , TMS320F280023-Q1 , TMS320F280023C , TMS320F280025 , TMS320F280025-Q1 , TMS320F280025C , TMS320F280025C-Q1 , TMS320F280040-Q1 , TMS320F280040C-Q1 , TMS320F280041 , TMS320F280041-Q1 , TMS320F280041C , TMS320F280041C-Q1 , TMS320F280045 , TMS320F280048-Q1 , TMS320F280048C-Q1 , TMS320F280049 , TMS320F280049-Q1 , TMS320F280049C , TMS320F280049C-Q1

 

  1.   C2000 Software Controlled Firmware Update Process
    1.     Trademarks
    2. 1 Introduction
    3. 2 Configuring Custom Boot Mode
      1. 2.1 Custom Boot Pin Selection
      2. 2.2 Custom Boot Mode Definition
      3. 2.3 Writing the Values to User OTP
    4. 3 Hardware Modifications
    5. 4 Software Modifications
      1. 4.1 Application Software Modifications
      2. 4.2 Flash Kernel Modifications
      3. 4.3 Firmware Update Process
    6. 5 Flowchart
    7. 6 Summary
    8. 7 References

6 Summary

The method mentioned above can be used to update the firmware in flash using the SCI boot option in end product, without the user manually toggling the boot switch. This also implies that there is no need to have an on board toggle switch to select the boot mode, thereby simplifying the board design. Thus, the whole process of a firmware update can be handled in software with minor modifications to hardware (adding a resistor and a capacitor).