Hello NXP TechSupport team,
It is my understanding of the manuals that the ELE "Commit" command (IMX93ELEAPI, par. 3.15) is meant to be issued after successful authentication upon each boot, even though this is not explicitly stated.
Doing so, as one might imagine, will result in multiple "Commit" commands being issued for the same FW version and SRK revocation values (practically nothing new to commit to in the fuses) across the lifetime of the device.
Can the NXP TechSupport team please confirm that issuing multiple "Commit" commands (for both OEM FW version and SRK revocations, i.e. bitmask 0x10 | 0x20) when the FW version and SRK revocation bits are the same, does not have any unintended side-effects with the fuses? Would such practice result in any unnecessary (potentially irreversible) fuse blowing?
Again, my understanding is that for the same FW version, and SRK revocation list, the "Commit" command should be a no-op; I would just like this to be confirmed by NXP, given the irreversibility of fuse operations.
Thank you in advance.
Regards,
George
