nRF52833 Central to Peripheral OTA upgrade

RE: nRF52833 Central to Peripheral OTA upgrade

hugzy123 — Thu, 23 Jul 2020 10:27:49 GMT

Hi,

We're also looking at implementing this sort of solution (a central updating multiple peripherals via DFU). Hung Bui Does Nordic have any plans for adding this as a feature in the future? Or creating an example with this functionality, such as the BLE central update over UART?

Thanks,

RE: nRF52833 Central to Peripheral OTA upgrade

hardikp — Fri, 17 Jul 2020 03:49:36 GMT

Thanks, Hung Bui.

RE: nRF52833 Central to Peripheral OTA upgrade

Hung Bui — Thu, 16 Jul 2020 12:51:40 GMT

The source code for nRF Connect on Android is not available. But the source for nRFToolbox and the DFU module is available here. https://github.com/NordicSemiconductor/Android-DFU-Library and here:https://github.com/NordicSemiconductor/Android-nRF-Toolbox

The source for nRF Connect on PC is here: https://github.com/NordicSemiconductor/pc-nrfconnect-ble

Capturing a sniffer trace of a DFU session would be very helpful to get an insight about the process.

RE: nRF52833 Central to Peripheral OTA upgrade

hardikp — Thu, 16 Jul 2020 05:38:35 GMT

Thanks, Hung Bui.

Yes, we will develop our own code. It seems that we need to understand the OTA upgrade protocol and develop the mechanism on the Central node to send the firmware binary to the peripheral node, which means cloning the nRFConnect upgrade module in central node software.

Where can we download the source code for the nRFConnect android/PC application? Is it available?

RE: nRF52833 Central to Peripheral OTA upgrade

Hung Bui — Tue, 14 Jul 2020 14:16:11 GMT

Hi Hardik,

Unfortunately we don't have an example for doing DFU OTA from one nRF52 to another. You would need to refer to our DFU protocol documentation and the mobile app / nRF Connect application on PC and write your own code.

But I don't think it would be much different from the UART DFU master code that I provided in the link you pointed to.