DFU Update

Zephyr uses the MCUmgr subsystem with the SMP protocol to perform DFU. This takes advantage of the MCUboot upgrade management features. It requires the target device to use an MCUboot application as the primary bootloader.

Overlay files for Serial DFU (overlay-serial-dfu.conf) and for BLE OTA (overlay-bt-dfu.conf) are provided in openair/docs/dfu and can be added to a sample in order to add DFU functionality. They may either be used individually, or together depending on what forms of DFU are desired. By including both overlays, the ability to perform Serial DFU and BLE OTA will be supported.

Additional Information can be found at:

• Atmosic Zephyr DFU