Hi, Sir:
I am using nrf9160 to develop a project of mqtt and GPS, using mqtt to upload GPS data to the cloud server; I use the software and hardware information as follows:
hardware:
- nRF9160 DK
software:
- system: ubuntu + SES
- ncs : v1.1.0
- modem : mfw_nrf9160_1.1.0.zip
- mode: nb-lot and gps(CONFIG_LTE_NETWORK_MODE_NBIOT_GPS=y)
- example: ncs/nrf/samples/nrf9160/mqtt_simple
I use the mqtt_simple demo as the development starting point, and it works works, next I added gps function;then I met some problem:
After GPS starting to run, mqtt run with errors and cannot publish or subscribe any data:
[11:17:28:682] ***** Booting Zephyr OS build v2.0.99-ncs1 *****␍␊ [11:17:28:695] The MQTT simple sample started␍␊ [11:17:28:696] LTE Link Connecting ...␍␊ [11:17:28:700] >>entry gps thread␍␊ [11:17:35:347] +CEREG: 2,"1D2C","0D1E2742",9,0,0,"11100000","11100000"␍␊ [11:17:48:656] +CEREG: 1,"1D2C","0D1E2742",9,,,"00000100","11100000"␍␊ [11:17:48:661] LTE Link Connected!␍␊ [11:17:48:668] GPS initialized␍␊ [11:17:48:668] mqtt domain www.freqmesh.com␍␊ [11:17:48:850] IPv4 Address found 47.106.164.80␍␊ [11:17:48:853] client id =0983000a4a25␍␊ [11:17:49:188] [mqtt_evt_handler:277] MQTT client connected!␍␊ [11:17:49:193] Subscribing to: hurry/down len 10␍␊ [11:17:49:348] [mqtt_evt_handler:327] SUBACK packet id: 1234␍␊ [11:17:49:665] Enabling PSM␍␊ [11:17:49:673] PSM enabled␍␊ [11:17:50:678] GPS started successfully.␍␊ [11:17:50:681] Searching for satellites to get position fix. This may take several minutes.␍␊ [11:17:50:691] The device will attempt to get a fix for 180 seconds, before the GPS is stopped.␍␊ [11:17:50:695] GPS operation started␍␊ [11:18:49:195] [mqtt_evt_handler:284] MQTT client disconnected -104␍␊ [11:18:49:200] POLLNVAL␍␊ [11:18:49:200] Disconnecting MQTT client...␍␊ [11:18:49:209] Could not disconnect MQTT client. Error: -128␍
I don't know why? Could you please provide a solution?
Harry
Best Wishes!
