https://devzone.nordicsemi.com/f/nordic-q-a/19443/can-pca10028-can-be-dfu-controllerI&#39;m wondering if it can be work as an DFU Controller (where sends zip Distribution Packet) not as an DFU Target. I&#39;m trying to make Each of the NRF51 Cores to be updated and make update each other. For example, there are Node A, B, C, And The NRFen-USTelligent Community 13Mon, 06 Feb 2017 13:40:31 GMThttps://devzone.nordicsemi.com/thread/75522?ContentTypeID=1Mon, 06 Feb 2017 13:40:31 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1c215f75-c7be-4730-8ad1-f5d93e048b49bjorn-spockeli<p>Hi Daniel,</p> <p>Yes, it should be possible to update an initial node A, and then have node A update another node B, which in turn updated node C etc. However, we do not have an example showing how to implement a DFU controller on a peripheral node as this is usually done by a central device like a smartphone. You will have to modify the bootloader to connect to another node after it has received its firmware and re-send the firmware to the other node. I suggest that you look into the Bootloader library documentation, found <a href="https://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v12.2.0/lib_bootloader_modules.html?cp=4_0_1_3_5">here</a>.</p> <p>You should not need to have external flash to hold the firmware, unless the application you want to update is very large.</p> <p>You can generate distribution packets using our nRF Utility Tool, nrfutil, which can be found <a href="https://github.com/NordicSemiconductor/pc-nrfutil">here</a> our GitHub page.</p> <p>Best regards</p> <p>Bjørn</p><div style="clear:both;"></div>