Good day!
I got EC20 and I try to connect with GPS.
ATI
Quectel
EC20F
Revision: EC20CEHDLGR06A08M1G
But got no results with 516 error code:
AT
OK
AT+QGPS=1
OK
AT+QGPSLOC=0
+CME ERROR: 516
AT+QGPSLOC=1
+CME ERROR: 516
AT+QGPS?
+QGPS: 1
How can I be sure this revision supports GPS?
How can I check that EC20 try to connect but with no luck (my application need to know that no satellites found instead of just hardware fail).
Thanks for answers!
PS: I use Ubuntu 22.04 LTS on Orange Pi 3
Hi @dim_engineer
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