Kernel version: 6.1.111
I managed to update the firmware:
at+qgmr
RG255CGLABR01A08M4G_A0.001.A0.001
OK
4 USB interfaces showed up this time:
[ 14.590728] option 1-1:1.0: GSM modem (1-port) converter detected
[ 14.591000] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB0
[ 14.591124] option 1-1:1.1: GSM modem (1-port) converter detected
[ 14.591296] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB1
[ 14.591393] option 1-1:1.2: GSM modem (1-port) converter detected
[ 14.591509] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB2
[ 14.591590] option 1-1:1.3: GSM modem (1-port) converter detected
[ 14.591708] usb 1-1: GSM modem (1-port) converter now attached to ttyUSB3
There were only 3 before.
I am still not getting any NMEA logs. Here is my sequence of commands to start the GPS:
at+qgpscfg="outport","usbnmea"
OK
at+qgps=1
OK
ttyUSB1 remains empty for a very long time:
But I am able to get GPS coordinates through AT commands:
at+qgpsloc=1
+QGPSLOC: <hidden>
OK
Is there any other configuration needed? Can you see your values for at+qgpscfg fields?
I have never seen it.
Or do you set it with the wrong baudrate?
AT+QGPSCFG=?
Currently, there is no archived guidance document for GNSS, but you can refer to documents from other modules.
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at+qgpscfg=?
+QGPSCFG: "outport",("none","usbnmea","uartdebug")
+QGPSCFG: "nmeasrc",(0,1)
+QGPSCFG: "gpsnmeatype",(0-31)
+QGPSCFG: "glonassnmeatype",(0-7)
+QGPSCFG: "galileonmeatype",(0-31)
+QGPSCFG: "beidounmeatype",(0-3)
+QGPSCFG: "gnssconfig",(0-7)
+QGPSCFG: "autogps",(0,1)
+QGPSCFG: "dpoenable",(0-2)
+QGPSCFG: "plane",(0-2)
+QGPSCFG: "suplver",(1-4)
+QGPSCFG: "lbsapn",(1-31),(1-4),<APN>
+QGPSCFG: "agpsposmode",(0-4294967295)
+QGPSCFG: "agnssprotocol",(0-15),(0-1287)
+QGPSCFG: "multibandconfig",(0-7,32-39)
OK
i’ll keep digging. it’s weird.
Just wondering, did you test on your side the mini PCIe module? The screenshots you provided above where NMEA logs work, were they captured from a mini PCIe module?
Thank you.
It shares with the same firmware. We are using the USB. It is the same.
1 Like
It works! Very weird… I replaced the modem with another unit (identical to the first one - or so I thought, I ordered them together) and now it works.
Hello.
I have a Quectel RG255CGL00AB modem with RG255CGLABR01A04M4G_A0.004.A0.004 firmware and I want to enable GPS in a Mikrotik router with 7.18.2 MMIPS firmware. Do you have any advice for me?