SPRUIU8A March   2020  – August 2021 TMS320F280040-Q1 , TMS320F280040C-Q1 , TMS320F280041 , TMS320F280041-Q1 , TMS320F280041C , TMS320F280041C-Q1 , TMS320F280045 , TMS320F280048-Q1 , TMS320F280048C-Q1 , TMS320F280049 , TMS320F280049-Q1 , TMS320F280049C , TMS320F280049C-Q1

 

  1.   Trademarks
  2. 1Introduction
  3. 2Resources Required for LFU
  4. 3Memory Layout
  5. 4Static Code in LFU
  6. 5LED Example Application and LFU Flow
  7. 6Running the LED Example
    1. 6.1 Serial Flash Programmer Update
    2. 6.2 Programming Static Code – Loading via Code Composer Studio (CCS)
    3. 6.3 Live Firmware Update of Application
    4. 6.4 Limitations and Troubleshooting
  8. 7Revision History

1 Introduction

In applications like server power supply, metering, and so forth. the system is desired to be run continuously to reduce downtime. But typically during firmware upgrades due to bug fixes, new features, and/or performance improvements, the system is removed from service causing downtime for associated entities as well. This can be handled with redundant modules but with increase in total system cost. An alternate approach, called Live Firmware Update (LFU), allows firmware to be updated while the system is still operating. Switching to new firmware can be done either with or without resetting the device, with the latter being more complex.