I am currently working on the implementation of the secured boot on an iMX6 and I have a few questions that I can't solve :
1) In the reference manual one can find the description of all eFuses and if they can be overridden by a GPIO, I am interested in the SRK_HASH one, regarding to this possibility it is written NA, others are marked Yes or No, but this one is NA. So is it possible to blow a key in the fuse and change it after ? I am almost sure that it is impossible but I just need a confirmation from experimented users !
2) Still regarding the GPIO that will override the fuses, where and when is it possible to define the value they will take ?
3) In multiple documents I found the documentation for the HAB API, for instance the pdf AN4581 gives some code which will display events, but I don't where I have to put it and from where I should call this functions.
I hope you guys could help me, thanks a lot !