How to realize DFU functionality by PyACI?

[oplinux]

Dear friends,

I want to realize dfu in 52840 DK by PyACI, i know there should be a bootloader firstly, 

a) I have flash the seiral example(nrf5_SDK_for_Mesh_v5.0.0_src\examples\serial) to 52840 DK.

b) Which bootloader can i used in the DFU, and how to config the serial application to support DFU?

c) I want to dfu my prosioner and node respectively, my prosioner had flashed the serial example(nrf5_SDK_for_Mesh_v5.0.0_src\examples\serial).

Could you give me some advices. thanks you in advance.

[Hung Bui]

Hi again Oplinux, 
A) If you can go for option B I wouldn't suggest option A. This option requires you to have deep understanding about the mesh DFU process and would be able to modify it as you want it. This only applied if you still plan to do Mesh DFU (for multiple nodes) and still can do single node DFU (high speed). If you don't plan to do mesh DFU I would suggest to go for option B. 

B)Correct. You just use the nRF5 serial bootloader and update the mesh stack and app like a normal BLE application. Note that you need to press and hold a button to put the device into bootloader mode before you can update it. 

[oplinux]

Thank you very much Hung, i will test it.

In solution A, if I needn't relay the DFU packet in the provisoner, how to disable it?

[Hung Bui]

Hi Oplinux, 
Could you please let me know what exactly you plan to do with option A ? Do you have the resource to study the bootloader and modify it ? 
I don't see the point of modifying the mesh bootloader if you don't plan to do mesh DFU.