SPRUIU8B August   2020  – March 2026 TMS320F280040-Q1 , TMS320F280040C-Q1 , TMS320F280041 , TMS320F280041-Q1 , TMS320F280041C , TMS320F280041C-Q1 , TMS320F280045 , TMS320F280048-Q1 , TMS320F280048C-Q1 , TMS320F280049 , TMS320F280049-Q1 , TMS320F280049C , TMS320F280049C-Q1

 

  1.   1
  2.   Live Firmware Update With Device Reset on C2000 MCUs
  3.   Trademarks
  4. 1Introduction
  5. 2Resources Required for LFU
  6. 3Memory Layout
  7. 4Static Code in LFU
  8. 5LED Example Application and LFU Flow
  9. 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
  10. 7Extended Implementations
    1. 7.1 Live Firmware Update with Reset on F28P65x MCUs
      1. 7.1.1 F28P65x LFU Hardware Requirements
      2. 7.1.2 Flash Organization
      3. 7.1.3 FWU Boot Mode
      4. 7.1.4 LED Example Application
        1. 7.1.4.1 LFU Command Processing
      5. 7.1.5 Running the Example
        1. 7.1.5.1 Loading the Example
        2. 7.1.5.2 Combing CPU1 and CPU2 Firmware Images
        3. 7.1.5.3 LFU over MCAN Host Programmer
          1. 7.1.5.3.1 Compiling the Host Programmer
          2. 7.1.5.3.2 Using the Host Programmer
      6. 7.1.6 Restrictions
  11. 8Revision History

7.1 Live Firmware Update with Reset on F28P65x MCUs

Extending upon the LFU principles discussed earlier, a dual-core LFU with reset example for F28P65x devices is available for reference in C2000Ware v26 or later:

C2000Ware_XX_XX_XX_XX\driverlib\f28p65x\examples\c28x_dual\flash_kernel\can_flash_lfu_sbl_multi_f28p65x

The main difference in the LFU architecture is that the F28P65x implementation offloads LFU operations to CPU2. This means that CPU1's only task is to execute the main application while CPU2 performs live firmware updates for both cores over MCAN with an external host. Please note that CPU2 is not running any other applications besides LFU in this example. Figure 7-1 illustrates the general LFU flow for the F28P65x implementation.


F28P65x LFU Flow
Figure 7-1 F28P65x LFU Flow