Error while sending AT commands to modem on Thingy:91.

[Shivek]

Hi, I am getting error from socket() function. I cant find definition for AF_LTE family. I am using simple socket() as:

socket(AF_LTE, 0, NPROTO_AT);

It will compile but will give run time error and return -1.

I am trying to program nrf9160 on Thingy:91 so to send AT commands to the modem. Is there any specific configuration that I should change under menuconfig?

Is there anything I am doing wrong? 

I am using nrf sdk 1.4.1 for developing the firmware.

Thanks in advance.

[Shivek]

Håkon Alseth said:

You should set this config to enable the AT command library: https://github.com/nrfconnect/sdk-nrf/blob/master/samples/nrf9160/gps/prj.conf#L11

I already got configured this.

Anyways, now its working for me. Just so the reader will know, It was a linker error saying - cannot find reference for k_malloc(), because I didn't configure heap memory pool size (by default which is zero). 

And I had to configure Max AT command response length found as:

Menuconfig(Top path) -> Modules -> Nordic nRF connect -> Libraries -> AT command driver -> Max AT command response length.

Thanks!

Shivek

[Håkon Alseth]

Hi Shivek,

 

I'm glad to hear that you found the source of the compile-error. Remember to set the CONFIG_HEAP_MEM_POOL_SIZE in your prj.conf to make the option persistent.

 

Kind regards,

Håkon