How to configue an external UART from nRF9160 dk ?

[Zita25]

Hi,

I use the app "asset-tracker", and i would like to configure an external uart to connect a sensor to the board.

I modifed the code but i can't detect any new COM from the device manager.

Here, what i made like modification :

in the nrf9160dk_nrf9160ns.dts file :

in the main.c file :

I think the problem comes from the file prj.conf, all modifications i made in it, crash the app ... so i don't know what to add ...

I hope someone can help me

Best Regards

Zita

[Simonr]

Hi

How exactly does the application crash? Are you able to see any error codes what so ever while debugging? A note to the COM port. The nRF91DK should always show two COM ports in the device manager, and you shouldn't see a "new" COM port popping up. It will always be present, even though the firmware doesn't use it.

Best regards,

Simon

[Zita25]

It crash when I reload the app, i have this message erreur : " create_nordic_project.py failed ". I'm confuse because i always had three ports.

Best regards,

Zita