Integrating secure serial DFU over uart with ble uart application

RE: Integrating secure serial DFU over uart with ble uart application

E.Sumathi — Mon, 19 Apr 2021 09:21:16 GMT

Thanks and sorry for late reply. It worked without code integration, I used switch interrupt to enter DFU mode and updated new firmware. Switch press along with board reset will enter DFU mode.

RE: Integrating secure serial DFU over uart with ble uart application

Vidar Berg — Tue, 23 Feb 2021 09:08:48 GMT

You can integrate DFU support in the application as demonstrated by the example I uploaded in this post: https://devzone.nordicsemi.com/f/nordic-q-a/46994/background-dfu-application-source-code/187534#187534. But note that this limits you to application updates. You need to perform dfu from the bootloader as I first suggested if you wish to support DFU of the Softdevice and the bootloader itself.

RE: Integrating secure serial DFU over uart with ble uart application

E.Sumathi — Mon, 22 Feb 2021 10:18:58 GMT

yes I have other requirement will be developing my application, if I want to update firmware to custom board (nrf52832 based) I will need to update over uart. For firmware update in future I require serial dfu, so can you provide the steps for integrating secure serial DFU with ble app uart application.

RE: Integrating secure serial DFU over uart with ble uart application

Vidar Berg — Fri, 19 Feb 2021 14:38:26 GMT

Hi,

It is not neccessary to integrate any DFU related code in the main application if you are going to perform serial DFU within the bootloader itself, which is the more common approach (See bootloader documentation Secure DFU Bootloader over Serial Link (UART/USB)) Do you have other requirements for this project?