nRF52 bootloader issue.

[Goudra]

Hi All,

 

We are using nRF52832 in our product. We are facing issue to establish bootloader in it. We used example codes for bootloader.

Below SDK example and procedure we followed to establish communication.

• nRFgostudio application is used to load hex files. 1.Softdevice 2.Bootloader 3.Application
• Loaded the Softdevice Hex file “\components\softdevice\s132\hex” (see Softdevice attachment)
• Loaded the secure bootloader example file “\examples\dfu\secure_bootloader\pca10040_uart” (see bootloader example attachment ).
• Loaded the blinky application Hex file “examples\peripheral\blinky\pca10040\s132” (see application attachment).

After following above procedure blinky code is not executing and we followed below steps to execute the application.

• Load Softdevice hex file.
• Load blinky application Hex file.

Now blicky app is executes. If we load the boot loader it’s not working.

 

Please let us know how to solve this issue and let us know which application we need to use for bootloader.

We need proper softdevice, bootloader and application example codes.

Please provide us the example codes and share the proper steps to load this Hex file to development board.

 

Thanks and regards,

Basavanagouda.

[Sigurd]

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.

[Goudra]

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.

[Sigurd]

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.