MCUMGR support FW upgrade from MCUBOOT over UART and USB

[MK_V]

Hi,

My custom NRF52840 device has two interfaces (UART and USB) for host connection.
I have successfully verified firmware upgrades using mcumgr from a mcuboot via the UART interface.
Additionally, I have verified firmware upgrades using mcumgr from an application via the USB interface (by enumerating a dual COM port).

Now, I need my device to support firmware upgrades from mcuboot via both the UART and USB interfaces using MCUMGR.
Does MCUMGR support firmware upgrades from MCUboot, depending on the host interface (either USB or UART), at the same time?

Thanks,

MK V

[Hung Bui]

Hi Muthukumar, 

As far as I know MCUMgr should be able to handle 2 transports depends on which transport come first. I'm not so sure what happen if both is initializing a DFU at the same time. But I assume it not a normal use case.