RE: nRF52840 DK change UART J2 to J3

tesc — Mon, 14 Sep 2020 12:21:06 GMT

Hi,

Where exactly on the forum did you find that example? It would be much easier to figure things out if we know the full context.

[quote user=""]When programming is complete I connected Dongle in PC usb port but I can't see COM Port in Device Manager even if in nrf Mesh app it appers.[/quote]

By this, do you mean that you do not get a COM port on the PC side, but through using the nRF Mesh smartphone app you can confirm that the device runs Bluetooth mesh successfully?

Please note that the DK has an on-board interface MCU, with a USB to UART bridge. It provides a COM port UART device to the PC, and is connected to the nRF UART pins. That way, you get UART communication from PC to nRF, even though it uses UART pins on the nRF and USB on the PC.

For the Dongle, on the other hand, the USB is connected directly to the nRF, as there is no interface MCU on the Dongle. That means communication between nRF52 Dongle and PC must use USB all the way, which means USB (and not UART) on the nRF as well.

[quote user=""]It is possible to change usb port to J3 in light_switch-serialLog?[/quote]

What J3 means depend on what board we are talking about. What board (Dongle, DK, other) are we talking about?

Regards,
Terje