Why does nRF52840 dongle not show up on device manager with COM number?

[Senchoi]

I'm using Windows and ble_app_uart example for my development.

I wanted to check log from my dongle so I'm trying to use log_backend_uart with putty.

But I couldn't get the COM number from this dongle after I program ble_app_uart example.

What can I do to get the dongle to show up on device manager?

Or how else can I check nrf_log?

I'm in a situation where I cannot use jlink for this instance.

[Priyanka]

Hi,

You could refer to the Dongle Programming Tutorial that we have. 

Regards,

Priyanka

[Senchoi]

I don't think it shows up in that tutorial.

It mentions I should use DFU Trigger Library. But that's not really enough detail.

I have a modified usbd_ble_uart example that shows up COM number when programmed.

I reckon it is a difference somewhere in the code. But no luck in finding that so far.

[Priyanka]

Hi,

What is your Windows OS version?

Regards,

Priyanka