HL8548 - GPSCONF for GPS/GLONASS/SBAS/QZSS

IoT Modules Legacy HL Series
1

The datasheet says that the value “2” is default. However, I readback GPSCONF and it gives 1. When I try 2 it throws an ERROR. Is it possible to get the extra systems?

This is on 5.5.23 version of the HL8548 firmware.

2

Little light on detail here, are you talking about setting GPSCONF to use GPS and GLONASS vs just GPS? If so do you mean the command

at+gpsconf=10,1

is failing (even though this is the default)?

Regards

Matt

3

Hello Matt,

Yes, I was trying to set what the “default” value in the datasheet for GPSCONF as you described:

AT+GPSCONF=10,1

4

Rob,

Just tried it with 5.5.24 and it seems to work ok.

at+cgmr
RHL85xx.5.5.24.0.201704131036.x6250_4

OK
at+gpsconf?
+GPSCONF: 0,0
+GPSCONF: 1,2
+GPSCONF: 10,1
+GPSCONF: 11,200,200

OK
at+gpsconf=10,1
OK
at+gpsconf=10,2
OK
at+gpsconf?
+GPSCONF: 0,0
+GPSCONF: 1,2
+GPSCONF: 10,2
+GPSCONF: 11,200,200

OK

Regards

Matt