DFU Binary example

Question

Hi, 
 While we perform DFU over mesh according to this in step 3: Generate a DFU file with nrfutil 
 we create dfu package of an application like below: 
 nrfutil dfu genpkg --application C:
ordic_semi
rf5_SDK_for_Mesh_v2.2.0_src\bin\blinky\blinky_nrf52832_xxAA_s132_6.0.0.hex --company-id 0x00000059 --application-id 1 --application-version 2 --key-file private_key.txt --sd-req 0x009D --mesh dfu_test.zip 
 The application used here is blinky_nrf52832_xxAA_s132_6.0.0.hex. 
 1) My question is, can I use any application to create dfu package as mentioned above and transfer this over mesh ? 
 
 2) If not what kind of support application requires if we want to send it over the mesh? 
 3) Where to find the source code of that application so that someone can modify(at least lightning different user led ) the blinky example that came as .hex with SDK 
 I need to to modify or at least quite few examples so that i can test my mesh network with different example. Now with same examples by changing version number only. But unfortunately SDK has only one binary example.

AndreasF · Accepted Answer

Hi. 
 1) You can use any application found in the nrf5_SDK_for_Mesh_v2.2.0_src\examples folder. 
 3) The blinky example is a precompiled file modified from the project nRF5_SDK_15.0.0_a53641a\examples\ble_peripheral\ble_app_blinky , The source code for this is to my knowledge not published yet. 
 - Andreas