RE: How to use J-link to encrypt nRF51422?

testy — Tue, 03 May 2016 17:55:18 GMT

Add "Reset" to the "Exit steps", then perform Target\Auto as stated in the J-Flash User Guide. The address 0x10001000/step #2/ looks strange - 0x10001014 should be better...

RE: How to use J-link to encrypt nRF51422?

Susheel Nuguru — Wed, 27 Apr 2016 10:23:53 GMT

You can use nrfjprog --rpb option

 --rbp <level>           Enables the readback protection mechanism. Valid
                         argument options are CR0 and ALL.
                         Limitations:
                         For nRF52 devices, the CR0 argument option is
                         invalid.
                         Side effects:
                         After an --rbp operation is performed, the
                         available operations are reduced.
                         For nRF51 devices, and if argument option ALL is
                         used, --pinreset will not work on certain older
                         devices.
                         For nRF52 devices, only --pinreset, --debugreset
                         or --recover operations are available after --rbp.