Including DFU into an existing project

[Arthur_Melkumov]

Hi. I am now at the stage of creating a new project. I want to include DFU over the air support in it. So, how can I do this using the example of two projects (secure_bootloader_ble_s132_pca10040.uvprojx and ble_app_template_pca10040_s132.uvprojx) based on the nRF5_SDK_17.0.2_d674dde SDK? I found a description of similar actions but for SDK 10 and I think it might be out of date. And for SDK 17, I do not see such a description yet

[Arthur_Melkumov]

What I want to get in the end: that among the BLE services of the main application there is a DFU service. And so that with a certain interaction with this DFU service, the chip goes into boot mode

[Amanda Hsieh]

Hi, 

You can use the Buttonless DFU Template Application as the reference or as a starting point to integrate the buttonless service into your application.

Notice that we are entering the Christmas and New Year holidays and will have reduced staff, please expect delayed responses until after January 4th. Sorry for the inconvenience.

-Amanda H.

[Arthur_Melkumov]

Hi, thank you for your answer!

I am using Buttonless DFU Template as the reference. But I have one problem - if I flash this application after flashing S132 Softdevice and secure bootloader the application is not started. This is due to the fact that the application does not have a signature in the boot settings and, accordingly, the master bootloader does not allow it to start. This can be fixed by writing the bootloader settings to the flash, but how can I do this? If possible - give an example how to do it by bat file or Keil.

Thank you!

[Amanda Hsieh]

Hi, 

To generate a HEX file that contains the Bootloader Settings page, see the nrfutil documentation/Generating and displaying keys for instructions.

-Amanda H.