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how to generate the public key for nrf52 DFU? Unable to install nrfutil.exe on my windows 7

How to generate the Public keys to firmware application?

Even i am unable to install the nrfutil.exe for my windows 7? what could be the issue?

Tried pip install for the nrfutil-6.0.1.tar.gz using command line "c:\ pip install ./downloads/nrfutil-6.0.1.tar.gz" still unable to install. Always getting below message

Please help me on nrfutil installation and public key generation for the DFU.

Nitesh

Parents

0 Vidar Berg over 5 years ago

Hi,

It looks like the connection is timing out for some reason. Please try to use the nrfutil executable included in the release instead: https://github.com/NordicSemiconductor/pc-nrfutil/releases

Best regards,

Vidar
0 Nitesh over 5 years ago in reply to Vidar Berg

I tried downloading the nrfuitl.exe, but its not installing. Scree shows the command line execution, but not installing.

On command line tried nrfutil --version, nothing is showing
0 Vidar Berg over 5 years ago in reply to Nitesh

Can you please post some screenshots that show the results of what you tried? You should be able to execute it directly from the command line without any installation.
0 Nitesh over 5 years ago in reply to Vidar Berg

I have tried below

1. python installation check

2. pip installation check

3. nrfutil installation check

4. tried to install nrfuti.6.0.1.tar.gz which is in my downloads folder

refer below for more

Reply

0 Nitesh over 5 years ago in reply to Vidar Berg

I have tried below

1. python installation check

2. pip installation check

3. nrfutil installation check

4. tried to install nrfuti.6.0.1.tar.gz which is in my downloads folder

refer below for more

Children

0 Vidar Berg over 5 years ago in reply to Nitesh

Thanks. The error is that it's not finding the executable. Please change the directory in the command line to the directory where you have stored nrfutil.exe.
0 Nitesh over 5 years ago in reply to Vidar Berg

Yes as suggested i did the cd downloads and run the nrfutil.exe

i found the nrfutil.exe installed

Thanks for the support,

to start further i need to create the public key and private keys.

Please just le me know how to proceed/ i mean link to follow to create the keys for the firmware before doing DFU OTA?

Thanks in advance

Nitesh
0 Vidar Berg over 5 years ago in reply to Nitesh

Good that you are able to run it now. To get started with OTA DFU feature I suggest you start by going through this blog post: https://devzone.nordicsemi.com/nordic/nordic-blog/b/blog/posts/getting-started-with-nordics-secure-dfu-bootloader.

Additional documentation for nrfutil can be found here: https://infocenter.nordicsemi.com/topic/ug_nrfutil/UG/nrfutil/nrfutil_intro.html
0 Nitesh over 5 years ago in reply to Vidar Berg

thanks i will check and get back to you.

Thanks again for helping me
0 Nitesh over 5 years ago in reply to Vidar Berg

Hi,

I am able to create the public and private key

Then clone the micro_ecc to external\mcc_ecc folder

Then copied the public_key.c file to "C:\NextGenHMI-Project\nRF5_SDK_16.0.0_98a08e2\examples\dfu"

Then opened the project "C:\NextGenHMI-Project\nRF5_SDK_16.0.0_98a08e2\examples\dfu\secure_bootloader\pca10056_s140_ble_debug\ses"

Note : i am using PCA1056 board and Soft device S140 and using SDK v16.0.0 for IDE SES

Please let me know how to compile the microECC library now?

Struck with this step, whether i need to add the files to project and then i need to compile?

i am seeing no micro_ecc folder in my project structure

Need help in building the library

Thanks in advance

Nitesh