BLE DFU update for multiple mcu architecture

[Beldramma]

Hi,

I am on NCS 2.9.0, I have tested lesson 5 exercice from NRF Intermediate course about BLE DFU, I have some questions about it:

- with mcumger, is there a way to update different mcu ? Like I receive firmware from mcu A through BLE, to update mcu B ? Maybe put information about which chip to update in firmware file.

- I have seen that this example uses a fixed service/characteristic, is it possible to use this service in our products legally, when they will be sold ?

- Is there a way to modify this service, or a way to use another custom service ?

Thanks !

[Beldramma]

Hello,

ok, and what do you advice to do to modify SMP servor sample with BLE on mcu A, in order to send the SMP commands through UART to mcu B ?

[Hieu]

Hi Beldramma,

For the purpose of upgrading another MCU, I don't recommend the SMP Server sample actually.

You will want to check out the DFU target library; its custom upgrade mode, in particular.

You can also use the solution to the exercises in lesson 9 of the NCS Intermediate course as a simpler starting base than the SMP Server sample.

Hieu