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Original question:

F29H850TU: Sec cfg validation

F29H85X-SOM-EVM: Questions related to SECCFG

Rapeti Sravanthi
Prodigy 195 points

Part Number: F29H85X-SOM-EVM

Hi,

In F29H85X,

  1. While converting device to SE from KP, we use CP of Seccfg first, we generate the Seccfg.bin from the given seccfg.out provided in sdk itself. While flashing, the Seccfg contents will be stored in Bank 0 - SECCFG's inactive sector of C29 flash and its certificate will be stored in CERT0 of HSM flash. While boot up this will be loaded successfully and run. 
    When there is an update of SECCFG contents, I will write into Bank1 SECCFG's inactive sector and certificate to CERT1 region in HSM flash, during boot up this will be active SECCFG sector which is handled by the device itself.
    If there is update again, I will follow step 1 again, I need to erase the CERT0 region to store certificate, can we do this? Is my assumption correct?
    If the SECCFG region is dormant which is flashed during CP, can we erase this sector?
  2. In sdk, seccfg.out files are given by default, how can we create our own seccfg.bin files for different ssu settings? Or do we just use the provided .out files?

Thanks and regards

  • 0
    TI__Intellectual 1720 points

    Hi Rapeti,

    Let me sync up internally with the respective teams on this and get back to you.

    Thanks and Regards,
    Aditya Singal

  • 0
    TI__Intellectual 1720 points

    Hi Rapeti,


    1. The auto-provisioning feature takes care of programming the inactive sector by itself. no need to do it on your own.

    2. Need more information about which SSU mode you want to create for. Also, we do not recommend to create seccfg.bin for SSUMODE 2 and 3 outside the project/app.

    You can also refer to this thread for more questions on SECCFG.

    Thanks and Regards,
    Aditya Singal