DFU over usb serial on Android device

RE: DFU over usb serial on Android device

Einar Thorsrud — Mon, 03 Jan 2022 09:49:44 GMT

Hi,

The DFU protocol itself is the same regardless of transport, so you can refer to the Android-DFU-Library (which you have already been using) for that. For serial transport specifics you can refer to for instance the nrfutil implementation (which is in python but can perhaps still be used to get an overview) and also the documentation.

RE: DFU over usb serial on Android device

mw1 — Wed, 22 Dec 2021 16:31:35 GMT

Thank you for the quick response! We are simply evaluating our options. The BLE implementation was very easy thanks to the Android DFU library, and we were simply wondering if there was a similar option for serial. We will look into implementing ourselves. Do you have a good starting point you could point us to?

RE: DFU over usb serial on Android device

Einar Thorsrud — Wed, 22 Dec 2021 13:10:02 GMT

Hi,

We do not have any implementation for performing a serial DFU operation from the Android side. If you need that, you will have to implement it yourself. I do not recall ever seeing this request before either. May I ask why you want to do this via cable, and not wirelessly over BLE from a android device?