Turning the modem off

[AMG]

I am working on a program that uses both CoAP and GPS in the form of thread. Since both CoAP and GPS uses the modem, I have to turn it off so the other thread can use it. Working on v1.2.0 I can use these functions : 

 

lte_lc_power_off();
lte_lc_offline();
lte_lc_deinit();

 

Which works on v1.2.0. But since I am using v1.3.1 , the first two functions give an error and the third function (deinit) is removed in v.1.3.1. To summarize I am looking for a way to turn off the modem in v1.3.1.

[Håkon Alseth]

Hi,

 

120 when using newlib is this errno:

https://github.com/eblot/newlib/blob/master/newlib/libc/include/sys/errno.h#L151

 

This is expected, as you unfortunately cannot de-init the lte_lc library with ncs v1.3.0:

https://github.com/nrfconnect/sdk-nrf/blob/v1.3.2/lib/lte_link_control/lte_lc.c#L493-L495

You can handle this by checking if ret == -EALREADY, and continue with the rest of your setup.

Note: The _deinit function is present in newer versions of ncs again:

https://github.com/nrfconnect/sdk-nrf/blob/v1.5.0/lib/lte_link_control/lte_lc.c#L795

 

Kind regards,

Håkon