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AM2431: HS-FS - can we develop application code and not use the security feature

lance Forman
Intellectual 280 points
Part Number: AM2431

If we do not want to use the HS-FS mode in our code and in our development can we disable it?

If so is there a document which describes this process and not requiring certificate signing. 

The following statement was listed in the migration guide   "Note: Appimages would eventually need signing by x509Certificate in HS-FS."

as stated in

dev.ti.com/.../HSFS_MIGRATION_GUIDE.html

  • 0
    TI__Mastermind 26145 points

    Hi ,

    System Firmware is a must requirement which cannot be avoided.

    For application, if the boot-time verification for application is not requirement, you can use syscfg to bypass the feature of using application signing.

    Hope it helps.

    Best Regards,
    Aakash

  • 0 in reply to Aakash Kedia
    Intellectual 280 points

    thank you for the reply.

    We were reviewing the latest SYSCFG files and we could not find any settings to "bypass the feature in the application"

    In general we cannot find any detailed instructions from TI  on ways to use the HS-FS feature and disabling its use and steps in the development process. Is there a document explaining this?

  • 0 in reply to lance Forman
    TI__Mastermind 26145 points

    Hi ,

    lance Forman said:
    In general we cannot find any detailed instructions from TI  on ways to use the HS-FS feature and disabling its use and steps in the development process. Is there a document explaining this?

    You cannot disable a device characteristics. You cannot change the firmware delivered by TI on that matter. But if you do not intend to use the features of firmware delivered by TI then its still possible.

    In SBL_OSPI, there is an option in syscfg to disable Application Image signing.

    This is one of the major difference handled across device types which can be handled via SW.

    Best Regards,
    Aakash