Hi, I was able to do adafruit bootloader + mcuboot and perform BLE FOTA on the Xiao BLE Sense.
I had to add pm_static.yml fixing all the partitions. I keep the adafruit bootloader and softdevices regions untouched for compatbility and had to trim mcuboot to fit in 48kB.
beacon_dfu.zip (29.3 KB)
I used SWD to flash, but I’ll test using uf2 also.
I’m preparing some Zephyr Lessons where students will use the Xiao BLE Sense, so that´s why i’m looking for a way to add BLE DFU over the original bootloader without the need of extra hardware for SWD.
Somewhere in the process I screwed my reset button. Nothing happens when I click or double click it. I wonder if it was heat damage when soldering pins for the SWD or some config I messed up. Even reflashing the dump I did in the beginning won´t fix it, so I’m considering hardware issue.
I just ordered a new Xiao and will test sending the mcuboot + app using uf2 when possible.
Oh, I had to use non-sysbuild. Still wondering how to sysbuild whithout the need of SWD at all…