Query ACL to identify which flash pages are protected

[Shri]

Hello,

I am using BLE secure bootloader example on nRF52840 with SDK 15.3 and softdevice 61.1. I can see the bootloader protects the MBR page and Bootloader space using ACL. Is there any way we can query the Access control links(ACL) from the application and see which pages are protected? Also, can we disable protection from the application somehow?

[Einar Thorsrud]

Hi,

It should be possible to read the ACL registers to see which regions are protected. I don't understand why you want to do that, though? Regarding disabling ACL, this can only be disabled by a reset. The ACL would not be functioning as intended if it was possible to disable the protection. See ACL chapter in PS for details.