log105733.pdf (220.4 KB)
Schematic_MC60.pdf (195.9 KB)
Firmware:- MC60CAR01A05
I’m using a customized PCB(application - GPS Tracker).
Reference circuit took:- Quectel_MC60_Reference_Design_Rev.B_20160801.pdf
Hope GNSS part of MC60, not function. most of the time I got the response for
AT+QGNSSRD?
+CME ERROR: Operation failed
No data transmitting over GNSS_TXD(pin 22) and TXD_AUX(pin 25).
GSM part, GPRS and EPO file downloading work fine.
How do I diagnosis the exact problem?
Should I run the GNSS part standalone to verify the NMEA data like GPS module(Like NMEA data received in Quectel L80)?
regards
Ajith Tomy
This will be helpful
I got two or three times full NMEA data during my first-day testing.
AT+QGNSSRD?
+QGNSSRD: $GNRMC,170048.000,A,1011.3268,N,07624.4670,E,0.00,38.07,180620,D42
$GNVTG,38.07,T,M,0.00,N,0.00,K,D1A
$GNGGA,170048.000,1011.3268,N,07624.4670,E,2,6,1.30,12.5,M,-93.5,M,57
$GPGSA,A,3,32,14,31,20,10,1.62,1.30,0.960F
$GLGSA,A,3,85,1.62,1.30,0.961B
$GPGSV,4,1,16,31,75,187,30,41,75,146,26,21,48,163,14,45,336,147A
$GPGSV,4,2,16,10,42,053,20,32,37,003,22,20,30,095,17,27,22,233,*71
$GPGSV,4,3,16,11,20,301,26,19,176,18,14,149,08,13,265,*7E
$GPGSV,4,4,16,25,12,083,01,03,325,16,01,205,193,*7D
$GLGSV,3,1,09,85,46,266,34,80,42,070,19,73,38,162,84,29,191,*61
$GLGSV,3,2,09,70,23,005,71,12,316,74,09,189,69,06,060,*6A
$GLGSV,3,3,09,79,02,033,50
$GNGLL,1011.3268,N,07624.4670,E,170048.000,A,D44
OK
