nRF91x1 SiP LTE firmware pin configuration

[k.leonhardt]

Hi 

I cannot find the pin-configuration for the nRF9251 using the nRF91x1 SiP LTE firmware. I can see that the Thingy91X and the nRF9151-DK board are using different UART pins (for both AT commands and DEBUG port I believe). And Looking on the Serial_LTE_modem example are using a third version.

Is there a documentation for the nRF91x1 SiP LTE firmware besides the AT command documentation? Especially regarding the peripheral design supported by the firmware.

Does it run directly on the nRF9151-DK board? Which pins on nRF9151 are used for the AT command UART?

Regards

Kasper

[Øyvind]

Hello Kasper, 

I'm not sure I understand your question. Are you referring to how the Application core of the nRF91x1 communicates with the LTE modem?

The application communicates with the modem itself via the interprocessor communication (IPC) mechanism, have a look at the LTE Modem chapter in the nRF9151 datasheet.

Have a further look at our Developer Academy - Cellular IoT Fundamentals to get to know our product better.

If my answer does not provide any clear answer to your question, please elaborate more on what you are trying to achieve.

Kind regards,
Øyvind