RE: Mesh update in NRFUTIL 4.0.0

Jørgen Holmefjord — Mon, 03 Dec 2018 12:38:39 GMT

Hi,

Yes, this is the correct version to use for Mesh DFU. Please have a look at the Configuring DFU section of nRF5 SDK for Mesh documentation:

To perform DFU transfers over mesh, use a customized version of the nrfutil tool. This tool sends the DFU packets to one device over serial interface. This device then stores these packets, and also forwards them to the other devices withing the radio range.

The required steps are listed below, followed by a more detailed explanation for each step.

Before you start, note the following information:

This guide assumes that you have at least 2 development kits or devices, where one is to be interfaced over the serial port, while the other receives the DFU from the first device over the mesh. To specify which device to use in which context, add the -s <serial-number> option for each call to the nrfjprog command, where <serial-number> is the Segger ID of your device. This will make nrfjprog execute its operations on the specified device only.
The nrfutil tool that is required to transfer the firmware image is available at https://github.com/NordicSemiconductor/pc-nrfutil/tree/mesh_dfu. The tool is open source.

Note: The master branch of the pc-nrfutil repository does not contain the additional code that is needed to handle a mesh DFU. To use the tool with mesh DFU, use the mesh_dfu branch as mentioned above. See the tool's documentation for more information about installation and prerequisites.

Best regards,
Jørgen