nRF DFU

[Bik]

Hii,

I am trying to flash secure_bootloader into my nRF 52 SDK. I am facing some issue.

can you please explain how to create "micro_ecc_lib_nrf52.a" file  (which software)

I got below error 

[ cannot find ../../../../../external/micro-ecc/nrf52hf_armgcc/armgcc/micro_ecc_lib_nrf52.a: No such file or directory ]

[Vojislav]

Once the GCC compiler, git, and make are in place, we can use a shortcut provided within the SDK to do the rest of the work for us. Open a Command window and navigate to the directory C:\u-blox\nRF5_SDK_16.0.0_98a08e2\external\micro-ecc There you will find a batch file (and a script for macOS and Linux) called "build_all". Go ahead and run that to download micro-ecc and build.
At this point, the SDK has the necessary encryption libraries not only for DFU use, but also for establishing secure connections through pairing and bonding.

Also, you can find nordic explanation in the infocenter: https://infocenter.nordicsemi.com/index.jsp?topic=%2Fsdk_nrf5_v16.0.0%2Flib_crypto_backend_micro_ecc.html

Best regards,
Vojislav