Tool/software:
Hi
We're interested in how long does the verification of applications signature take. A value in milliseconds is sufficient.
I went through am62d datasheet and through Freertos SDK manual, but I did not get a definitive answer.
This link https://software-dl.ti.com/mcu-plus-sdk/esd/AM62DX/latest/exports/docs/api_guide_am62dx/DATASHEET_AM62DX_EVM.html shows that the execution of the App_loadImages function takes 3.1ms,
but is not clear whether this functions execution was measured on fully provisioned HS target. I used the ClockP_getTimeUsec function to measure the execution time of the Bootloader_socAuthImage function. This measurment showed 2ms on the non-provisioned HS_FS target.
Given the information posted on FreeRTOS SDK, one could conclude that the verification of application signature lasts around 3ms. Since that's a surprisingly low value, I'm reaching out here to confirm or dispute this conclusion. Perhaps it's the sysfw that is actually checking whether the customer key is present, and if it's not, the verification is skipped with a succesful return code? I'd greatly appreciate any help with figuring out the performance of the signature verification (hopefully without permanently setting the fuses on SoC).
Thanks!
Mateusz