This Device Firmware Update (DFU) example illustrates how to create an application that can be updated over the mesh using side-by-side mode DFU. In this mode, the new firmware is transferred in the background while the application is running and the DFU reports to the application when the transfer is done. The application can then flash the new firmware when ready.
More information about the DFU can be found on the md_doc_getting_started_dfu_quick_start page.
This DFU application requires a bootloader and a valid device page to function correctly.
You can find the source code of the DFU example in the following folder: <InstallFolder>/examples/dfu
Precompiled bootloaders are included in the bin directory at the project root directory and the device page must be generated with the device_page_generator.py script located in tools/dfu/device_page.py.
See md_doc_getting_started_dfu_quick_start for detailed instructions on how to perform a DFU operation using this example application.