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TMS320F2800156-Q1: AB swap question

witness
Prodigy 10 points

Part Number: TMS320F2800156-Q1
Other Parts Discussed in Thread: C2000WARE

Tool/software:

hi, experts

we want to apply AB swap function in TMS320F280015x, and the chip has only one bank, could we use LFU to realize this requirement? is there any success case? thanks.

  • 0
    TI__Mastermind 27145 points

    You can split up the Flash bank into 3 partitions - bootloader, App 1, App 2. To enable LFU, a portion of the bootloader (Flash API + functions that call it) as well as the App (any ISRs that need to run during LFU) will need to run from RAM. This will allow erase/program of the other App space.

    We have an example in C2000Ware

    Bootloader: C2000Ware_5_04_00_00\driverlib\f28002x\examples\flash\CCS\flash_ex3_sci_flash_kernel

    App: C2000Ware_5_04_00_00\driverlib\f28002x\examples\flash\CCS\f28002_lfu_singlebank

  • 0 in reply to Sira Rao80
    Prodigy 10 points

    hi, Sira

    thanks so much for your kind reply, as for this method you mentioned, when we intend to prog app, shall we need to generate two app hex file, which means based on two linker files?

  • 0 in reply to witness
    TI__Mastermind 27145 points

    That is correct. Each of the app will have its own linker file, and in addition the bootloader will have its own linker file.