Hello,
I am currently working on a new design based on nRF9151. This design is the evolution of a previous PCB.
The device uses a combined GPS and Cellular antenna, which is accessible by the user, since it's on an external SMA connector.
Therefore, the user might remove the antenna.
Looking at these documentation, I was wondering if it was possible to detect wether the antenna is connected or not. The idea is that the firmware is able to detect if the user has removed the antenna, and prevent any GPS/Cellular operations.
https://docs.nordicsemi.com/bundle/nwp_033/page/WP/nwp_033/nwp_033_antenna_detect_test.html
However, I am not sure if I understand properly.
I believe that the design shown with the MAGPIO is used to detect if there is an antenna connected on J1. Is that correct ? (if so, it's not applicable to my design).
https://docs.nordicsemi.com/bundle/nwp_033/page/WP/nwp_033/nwp_033_antenna_detect_magpio.html
The example using GPIO has a similar schematic, but mentions a "test cable".
https://docs.nordicsemi.com/bundle/nwp_033/page/WP/nwp_033/nwp_033_antenna_detect_gpio.html
Could please provide more details on this topic, and let me know if the feature I am willing to acheive is doable or not.
Thanks a lot.
Vincent