DFU

[harrys]

Hi, 

i am working on nrf52dk . i want to do DFU with BLE can you provide any document link. 

[Amanda Hsieh]

Hi, 

Check out https://devzone.nordicsemi.com/nordic/short-range-guides/b/software-development-kit/posts/getting-started-with-nordics-secure-dfu-bootloader 

-Amanda H.

[harrys]

i have merged the two hex files "secure bootloader dfu example code" and "softdevice_hex file". programmed it in nrf52dk.

now nrf52dk is advertising "dfuTarg". when i program the device (blinky_ble_code) with nrf mobile app. programming done but nrf52dk is still advertising "dfuTarg".

[Amanda Hsieh]

I think you are using BLE Secure DFU Bootloader and buttonless_dfu, so the bootloader supports that Button assignment. See BLE Secure DFU Bootloader-Button assignment. 

-Amanda H.

[harrys]

i was looking for something that doesnot include button

[Amanda Hsieh]

Hi, 

There is no such thing as " buttonless dfu bootloader".  You need to do is to implement the buttonless service into your application(i assume it's a BLE application). The buttonless example provided in the SDK is an example of how to implement buttonlessDFU service into your application. 

-Amanda H.

[harrys]

hi,

i want to implement buttonless_dfu with my code.

as i found here

https://github.com/gamnes/nRF52832-buttonless-dfu-development-tutorial

buttonless example runs but it doesnot shows dfu icon

[Amanda Hsieh]

Hi, 

Do you see the DFU icon as the following figure?

-Amanda H.

[harrys]

yes i found it when i  program with pre compiled hex files.

what i am doing is 

1. program the nrf52dk with ble_debug bootloader

2.then i programmed dk with "ble_app_dfu_buttonless" example in ble_peripherals.there is no advertisement of any data

[Amanda Hsieh]

Please refer to Step 4 – Create a product release image including all components in the nRF52832-buttonless-dfu-development-tutorial. 

-Amanda H.