i try to get gps data, in ec25-eux and i get eror 516
AT+QGPS=2,255,50,0,1
OK
AT+QGPSLOC=0
+CME ERROR: 516
Hi @arl
The AT+QGPSLOC=0 command needs to be executed after obtaining the positioning information to obtain the positioning information. Otherwise, an error code of 516 will be reported. I tested this problem. If the AT+QGPSLOC=0 command is executed immediately after AT+QGPS=1, an error will be reported. , this may be still in the star search stage. After a while, the positioning information will be obtained normally.
What you need to pay attention to is to ensure that the GPS antenna is connected normally and that the GPS is outdoors. The indoor environment cannot complete satellite search and positioning. In addition, you can open another QCOM tool, connect to the NMEA port, turn on the GPS function, watch the NMEA port normally output positioning information, and then query to find it. Below is the AT process I tested, you can take a look.
[2023-11-14_13:47:08:721]AT+QGPS?
[2023-11-14_13:47:08:721]+QGPS: 0
[2023-11-14_13:47:08:721]OK
[2023-11-14_13:47:21:951]AT+QGPSLOC=0
[2023-11-14_13:47:21:951]+CME ERROR: 505
[2023-11-14_13:47:25:255]AT+QGPSLOC=1
[2023-11-14_13:47:25:255]+CME ERROR: 505
[2023-11-14_13:47:34:419]AT+QGPS=1
[2023-11-14_13:47:34:419]OK
[2023-11-14_13:47:39:739]AT+QGPSLOC=0
[2023-11-14_13:47:39:739]+CME ERROR: 516
[2023-11-14_13:48:04:431]
[2023-11-14_13:48:04:431]+QGPSURC: “xtradataexpire”,0,“1980/01/05,19:00:00”
[2023-11-14_13:48:18:525]AT+QGPSLOC=0
[2023-11-14_13:48:18:525]+CME ERROR: 516
[2023-11-14_13:48:49:391]AT+QGPSCFG=“outport”
[2023-11-14_13:48:49:391]+QGPSCFG: “outport”,usbnmea
[2023-11-14_13:48:49:391]OK
[2023-11-14_13:49:26:338]AT+QGPSLOC=0
[2023-11-14_13:49:26:338]+QGPSLOC: 055013.0,3149.3300N,11706.8687E,3.3,48.6,3,23.35,0.0,0.0,141123,04
[2023-11-14_13:49:26:338]OK
[2023-11-14_13:49:28:157]AT+QGPSLOC=0
[2023-11-14_13:49:28:157]+QGPSLOC: 055015.0,3149.3299N,11706.8683E,3.3,48.6,3,23.35,0.0,0.0,141123,04
[2023-11-14_13:49:28:157]OK
[2023-11-14_13:49:28:902]AT+QGPSLOC=0
[2023-11-14_13:49:28:902]+QGPSLOC: 055016.0,3149.3299N,11706.8683E,3.3,48.7,3,23.35,0.0,0.0,141123,04
[2023-11-14_13:49:28:902]OK
[2023-11-14_13:49:29:686]AT+QGPSLOC=0
[2023-11-14_13:49:29:686]+QGPSLOC: 055016.0,3149.3299N,11706.8683E,3.3,48.7,3,23.35,0.0,0.0,141123,04
[2023-11-14_13:49:29:686]OK
[2023-11-14_13:49:30:433]AT+QGPSLOC=0
[2023-11-14_13:49:30:433]+QGPSLOC: 055017.0,3149.3299N,11706.8678E,3.3,48.8,3,23.35,0.0,0.0,141123,04
[2023-11-14_13:49:30:433]OK