Use supl_client_abort() A GPS SUPL nrf9160

[haohv6]

Hi.

I use GPS with SUPL client library, so I need your help.

I enabled CONFIG_AGPS_SRC_SUPL and use gps_agps_request() function to request agps

I found that in supl_start(), you don't use supl_client_abort() function.

This document (https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/nrf/libraries/others/supl_os_client.html#supl-client) noted that  "The SUPL client OS integration library then starts the SUPL session by calling the supl_client_session() function from the SUPL client library with the supl_session_ctx_t parameter. The application does not return from this function until the SUPL session is finished or the supl_client_abort() function is called.". 

I want use supl_client_abort() but segger embedded studio can't build it. It said "undefine reference supl_client_abort" although I included "supl_session.h".

How can I use it?

Thank you.

[Håkon Alseth]

haohv6 said:

I found that in at_cmd.c, socket didn't have timeout. Are there any cases it hang forever? My custom board sometimes reboot because I set a watchdog timer with period 5 minutes.
I use AT+CFUN = 1 and AT +CFUN = 4 to connect LTE 5 minutes once

Have you tried to disable the watchdog, and debugged the issue to see where it is stuck?

 

Kind regards,

Håkon

[haohv6]

Hi.

I found that my connection thread hanged.
In that thread, I turned on AT + CFUN = 1 to connect to LTE  and send message, after sent message, It disconnects and go to sleep mode with AT + CFUN = 4.

So, I think it have a problem at AT thread in at_cmd.c

[Håkon Alseth]

Hi,

 

How often do you do this, ie CFUN=1/CFUN=4?

You are limited to 30 network attaches per hour as per GSMA guidelines (see here for documentation references). If this happens, the modem will wait until an hour has passed before you're able to attach to the network again.

 

Kind regards,

Håkon

[haohv6]

Hi

I use it 5 minutes once.

I known that it can't connect LTE more 30 times per hour, are there any cases AT thread hanged?

[Håkon Alseth]

Hi,

 

Do you wait until the network is available? Do you have a log showing the issue?

 

Kind regards,

Håkon