How to do OTA of the nrf52840 peripheral device using Linux based gateway having nrf52840 central device

RE: How to do OTA of the nrf52840 peripheral device using Linux based gateway having nrf52840 central device

Einar Thorsrud — Thu, 27 May 2021 09:57:52 GMT

Hi Bhavya,

The DFU protocol is documented here.

RE: How to do OTA of the nrf52840 peripheral device using Linux based gateway having nrf52840 central device

Bhavya Mathukiya — Wed, 26 May 2021 13:38:49 GMT

Hi Einar,

Can you please provide me with any documentation where DFU Master flow/sequence is mentioned. I have to implement DFU master application for my project. I have also started looking into nrfutil source code.

Regards,

Bhavya

RE: How to do OTA of the nrf52840 peripheral device using Linux based gateway having nrf52840 central device

Einar Thorsrud — Tue, 18 May 2021 17:46:13 GMT

Hi Bhavya,

No, nrfutil does not work with that. In that case you either have to switch firmware on the nRF when you want to do DFU, or you need to implement a DFU master yourself. You could look at nrfutil or some of the other implementations we provide for reference in that case.

RE: How to do OTA of the nrf52840 peripheral device using Linux based gateway having nrf52840 central device

Bhavya Mathukiya — Tue, 18 May 2021 13:10:36 GMT

Hi Einar,

Thanks for the speedy response. I am using the Zephyr Bluetooth controller on the nrf module(nrf52840) connected with the gateway. Do you know nrfutil is working for it?

Regards,

Bhavya

RE: How to do OTA of the nrf52840 peripheral device using Linux based gateway having nrf52840 central device

Einar Thorsrud — Tue, 18 May 2021 12:28:11 GMT

Hi Bhavya,

Nordic does not provide a native DFU master implementation for the nRF5 SDK bootloader for Linux (or Windows or Mac). However, if you use the connectivity firmware on the nRF module that is connected to the Linux gateway (same as is used by nRF Connect BLE), you can use nrfutil to do DFU.

Einar