Hello
I am doing a bluetooth dongle and I added MCUBOOT with CDC ACM to be able to update my app.
I find that the update takes a lot : 5+ min to update a 200kB application.
This is questionning me because I have an other bluetooth product with a nRF52840 too and I can do an update within 30s max by ble.
It would seem logic that USB dfu is faster than BLE.
Regards
Thibaud