What is the connectivity FW in DK for DFU mesh?

[badidearock]

Hi,

I would like to perform DFU over Mesh. I am following the steps

https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.meshsdk.v4.0.0/md_doc_libraries_dfu_dfu_quick_start.html

I just realize my connectivity board has no FW to receive DFU package through serial. 

What image I should use for DFU mesh, and just using nrfjprog to program it?

thanks

[Joakim Jakobsen]

Hi. 

All the information should be in the link you referred to. 

Requirements 
To perform DFU transfers over mesh: 

• .......
• Use an application that supports DFU, such as the DFU example included in the nRF5 SDK for Mesh.

Best regards, 
Joakim Jakobsen

[badidearock]

Do you mean the DFU example in Mesh SDK is for nrfutil connectivity FW?

Then where is the DFU example for mesh device?

I also confuse why is the nrfutil command is using 'serial' not "ble" in DFU over Mesh

"nrfutil dfu serial -pkg dfu_test.zip -p <COM port> -b 115200 -fc --mesh" 

But in requirements session said 

"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 within the radio range."

[badidearock]

I just figure out that the nrfutil connectivity FW is the application that supports DFU Mesh feature. DFU example included in the nRF5 SDK for Mesh is the one.

Once DFU completed, all mesh devices and the connectivity board are all updates to dfu_xxx.zip(here is binky application)

So, the next step is to integrate DFU process into our application then all mesh devices can DFU upgrade.

thanks

[Joakim Jakobsen]

Thank you for sharing. 

Good luck implementing DFU on your Mesh devices. 

Best regards, 
Joakim