old nrfutil can't be installed with new python, new nrfutil not suitable replacement

RE: old nrfutil can't be installed with new python, new nrfutil not suitable replacement

Einar Thorsrud — Wed, 13 Nov 2024 08:01:02 GMT

Hi,

The DFU solution for the nRF Connect SDK is based on Simple Management Protocol (SMP) and demonstrated by this sample, and you can use use mcumgr as a command line tool for performing DFU from a computer.

If the task at hand is to make DFU over USB work on an existing product, I expect it would make more sense to work on a solution on the Linux side to find a solution instaed or re-writing the firmware entierly. But for any new products, I would certainly recommmend the nRF Connect SDK.

PS: We are working on supporting Linux arm64 for nrfutil device.

RE: old nrfutil can't be installed with new python, new nrfutil not suitable replacement

ambrice2 — Tue, 12 Nov 2024 15:55:00 GMT

If we switch to nRF Connect SDK, what is the mechanism for DFU over USB from an arm system? I thought it was still nrfutil, just different commands.

RE: old nrfutil can't be installed with new python, new nrfutil not suitable replacement

Einar Thorsrud — Tue, 12 Nov 2024 09:57:07 GMT

The nRF5 SDK is no longer actively worked on (see nRF Connect SDK and nRF5 SDK statement), and this also include surroinding tools. Going forward we recomend using the nRF Connet SDK (which also supports DFU over USB but with an entierly different mechanism).

RE: old nrfutil can't be installed with new python, new nrfutil not suitable replacement

ambrice2 — Mon, 11 Nov 2024 16:20:09 GMT

So is it safe to say then that DFU over USB is not going to be officially supported going forward?

RE: old nrfutil can't be installed with new python, new nrfutil not suitable replacement

Einar Thorsrud — Mon, 11 Nov 2024 14:17:06 GMT

Hi Aaron,

I have forvared the feedback internally. Nordic has not provided any other USB DFU tools than nrfutil (and the implementation of the nRF5 SDK releated features in the new nrfutil is the last version from the old nrfutil, with no updates). There may be third party implementations I am not aware of though, and you are free to fork and update/modify or make your own solution with inspiration from the old nrfutil github project if you like.