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TMS320F280025: Is there any security solution for external flash

Julia Li
Expert 4755 points

Part Number: TMS320F280025

Hello Champs,

Customer is using F280025 with external FLASH and they want to know is there any security solution for external flash?

Would you please kindly suggest whether we have related document or not? Thanks!

Best Regards,

Julia

  • 0
    TI__Guru** 116021 points

    Hi Julia,

    C2000 code security is only for internal flash. For external flash, user need to encrypt the information using their own SW and then store it into external flash.

    Regards,

    Vivek Singh

  • 0 in reply to Vivek Singh
    TI__Expert 4755 points

    Hi Vivek,

    If the code is placed in the external Flash, how to read the code stored in the external FLASH? Do I need to do the BootLoader loader myself, or does the C2000 automatically load from external Flash?

    In addition, how to encrypt and decrypt the code in the external Flash through software? Please suggest if there are standard practices. Thank you in advance!

    Best Regards,

    Julia

  • +1 in reply to Julia Li
    TI__Guru** 116021 points
    Julia Li said:
    If the code is placed in the external Flash, how to read the code stored in the external FLASH? Do I need to do the BootLoader loader myself, or does the C2000 automatically load from external Flash?

    It depends on what interface is used to read the flash. We have some bootloader in ROM which can be used if the interface and protocol is compatible.  If not then user need to write their own bootloader which can read the external flash.

    Julia Li said:
    In addition, how to encrypt and decrypt the code in the external Flash through software? Please suggest if there are standard practices. Thank you in advance!

    This again depends on user application.  I am not expert on this but there are many standard available and user can choose anyone of these.

    Regards,

    Vivek Singh