DFU update mesh SDK v1.0.0 to v2.x

RE: DFU update mesh SDK v1.0.0 to v2.x

pohakansson — Mon, 03 Sep 2018 09:23:26 GMT

Hi Edvin

Splitting the SD is an interesting approach :-) I've manually reflashed 20 of my nodes, maybe I'll consider this for the remaining 60.

Thanks,

Pär-Olof

RE: DFU update mesh SDK v1.0.0 to v2.x

Edvin — Mon, 03 Sep 2018 09:20:30 GMT

Hello again Pär,

I am terribly sorry that this took so long. The mesh bootloader has a week spot, which means that it doesn't consider upgrading a major version of the SoftDevice.

A possible hack is to strip the softdevice down to the size of the old softdevice (just cut it at that address), and merge the rest of the softdevice with the application, using the mergehex tool. That was the tip that I got from the Mesh team. I have not tested it. Hopefully, the bootloader doesn't use that part of the softdevice during the DFU transfer.

Anyway, I suggest that you test this on one device before starting to update all devices to a snipped softdevice.

Best regards,

Edvin

RE: DFU update mesh SDK v1.0.0 to v2.x

Edvin — Mon, 27 Aug 2018 20:08:40 GMT

Hello Pär,

I am sorry for the late reply. This is an interesting case, and it looks like you know what you are talking about. I will have to check with someone in our Mesh team regarding this issue. I will get back to you as soon as I can. Hopefully tomorrow morning.

Best regards,

Edvin