SDK 1.8.0 The AT#XAGPS=1,1 command doesn't working

[Stas Jis]

Hello, I am using board nRF9160-dk (sdk 1.8.0).
I need to get geolocation data using AGPS, for this I use the following sequence of AT commands:

AT%XSYSTEMMODE=1,0,1,0
AT%XMAGPIO=1,0,0,1,1,1574,1577
AT%XCOEX0
AT+CEREG=5
AT+CPSMS=1
AT+CFUN=1
AT#XNRFCLOUD=1
AT#XAGPS=1,1

But always on the command AT#XAGPS=1,1 I get the answer "ERROR".
What's my mistake? And why just "AT#XGPS=1,1" works correctly.

[Øyvind]

Hello, 

The #XAGPS command runs the GNSS together with the nRF Cloud A-GPS service. This requires access to nRF Cloud through the LTE network for receiving A-GPS data.

Have you connected to nRF Cloud?

Kind regards,
Øyvind

[Stas Jis]

Hello,
To connect to the cloud service, use the command: AT#XNRFCLOUD=1.
In response we get:

<< OK
<< #XNRFCLOUD: {"desired":{"pairing":{"state":"paired","topics":{"d2c":"prod/669fbe44-b8e6-41e1-b298-6afb63e45691/m/d/nrf-352656108600480/d2c","c2d":"prod/669fbe44-b8e6-41e1-b298-6afb63e45691/m/d/nrf-352656108600480/c2d"}},"nrfcloud_mqtt_topic_prefix":"prod/669fbe44-b8e6-41e1-b298-6afb63e45691/"},"config":{"GPS":{"enable":false}}}
<< #XNRFCLOUD: 1,0

[Øyvind]

Hello, 
I've just tested on my side. Are you using the precompiled firmware?

In the pjr.conf of the Serial LTE Modem, you will need to enable AGPS (disabled by default). 

# nRF Cloud based location services
CONFIG_SLM_AGPS=y

Note that the SLM uses RTT to print the Application log, which you can access via Segger J-Link RTT Viewer.

# Segger RTT
CONFIG_USE_SEGGER_RTT=y
CONFIG_RTT_CONSOLE=y
CONFIG_UART_CONSOLE=n
CONFIG_LOG_BACKEND_RTT=y
CONFIG_LOG_BACKEND_UART=n

Kind regards,
Øyvind