nRF52 bootloader issue.

RE: nRF52 bootloader issue.

Sigurd — Tue, 27 Nov 2018 16:15:47 GMT

Try to generate the settings hex like this:

nrfutil settings generate --family NRF52 --application your_application_hex_file.hex --application-version 0 --bootloader-version 0 --bl-settings-version 1 settings.hex

Then flash the 4 hex-files(softdevice, application, bootloader and settings).

See this, this and this page for more information.

RE: nRF52 bootloader issue.

Goudra — Tue, 27 Nov 2018 15:53:00 GMT

1) We are using V15.2 SDK

2) Yes we try to load Softdevice, Boatloader and application Hex files.

3)Yes we are using Serial boatloader example. We took it from secure boatloader example folder.

we want to do DFU over UART.

May I know UART connections for the development kit?

Thanks and regards,

Basavanagouda.

RE: nRF52 bootloader issue.

Sigurd — Tue, 27 Nov 2018 13:00:27 GMT

Hi,

1) What SDK version are you using ?

2) Did you generate and flash the bootloader settings hex file?

3) You are now using the serial(uart) bootloader. You want to do DFU over UART, correct ?

Please see the documentation for the serial bootloader example here.

Note that nRFgostudio is deprecated, please use nRF Connect programmer app instead. In nRF Connect, click on the "Add/remove apps" tab to install the programming app.