Nrf9160 "Error AT Timed out"

[Gioele]

Hey!

I want to try my SIM but I can't start the modem.
Each command related to the modem that I execute gives me this error. I tried different firmware, but I can't upload the JSON certificate in certificate manager (I have the same error AT).

I use the last version of nRF Connect. Please help me!

[Didrik Rokhaug]

Hi,

What application are you runbning on the board? Does it forward AT commands received over UART to the modem?

If it doesn't, you might want to include the at_host library in your application: https://developer.nordicsemi.com/nRF_Connect_SDK/doc/1.9.1/nrf/libraries/modem/at_host.html

Best regards,

Didrik

[Gioele]

https://devzone.nordicsemi.com/f/nordic-q-a/85578/nrf9160-board-for-qr-code-project

This!!

[Didrik Rokhaug]

The modem (as in the modem core) only receives AT commands from the application core. The modem doesn't have access to the UARTs.

So, you need something in the application to read the AT commands from the UART, send them to the modem, and print the reply on the UART.

For this, you can use the AT host library, which runs in the background, and does exactly this.

You can enable it by setting CONFIG_AT_HOST_LIBRARY=y