Need FOTA Support in LWM2M firmware update object using block2 coap process.

[Pankaj Jaswal]

Hi 

We searched a lot of stuff regarding FOTA update in nRF52840DK using Lwm2m and coap protocol. But we could not get help in the right direction. We could not find any stuff or documentation (explanation) regarding BACKROUND_DFU in nRF16_SDK.

We already implemented firmware object and its instance callback with existing lwm2m client example. Now we want to update the firmware over the air using lwm2m and coap protocols. Please share any kind of stuff or example you have so that we can get out from this trouble

[Edvin]

Pankaj Jaswal said:

But in that example TFTP protocol is used. In my case,  i want to use Lwm2m server with CoAP protocol.

 In that case, we don't have any. Everything in the IoT folder is experimental (not production), and since it wasn't much used, it was never finished. What we have here is delivered as is, but we will not expand or add to this folder. So we will not release a bootloader with Lwm2m server with Coap protocol if it is not present already.

Another thought:

Your nRF is connected to some gateway, right? A Raspberry Pi? Perhaps you can use a BLE bootloader and update the nRF from the Raspberry Pi using nrfutil on the RPi?

BR,

Edvin