DFU between two NRF52's

[cheeseburger_backpack_]

I have two NRF52 based devices. One is a portable sensor tag and the other is a fixed base station, with an external memory IC and internet access through a modem. The base station connects to the sensor tags whenever they are close by and downloads data from them.

I want the base station to get new programs from the internet when they become available and flash them onto the sensor tags.

Is it possible to DFU between two NRF52's in this way?

Does Nordic provide any resources or example code that could help us? I am already familiar with the DFU provider example code provided in python, and nRFConnect in Android, and this has been very useful, but I am hoping for an example of DFU provider in C using Nordic's softdevice, if it exists.

We're writing in C around Nordic's s132 softdevice, SDK 15.

[Vidar Berg]

Hi,

We don't have a reference implementation for a DFU client on the 52, unfortunately. But in case you haven't seen it,  the BLE section of the bootloader documentation should contain the necessary information to develop your own DFU client.