VAB-820 Linux BSP v3.2.0 Quick Start Guide
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5.8.2. Enabling GPS
To configure the GPS function of the module requires the use of the Minicom serial
communication program. Open the Minicom serial communication program with the
following command:
$ minicom -s
Connect to the
/dev/ttyUSB1
serial device with the following settings:
+--------------------------------------------------------------+
| A - Serial Device : /dev/ttyUSB1 |
| B - Lockfile Location : /var/lock |
| C - Callin Program : |
| D - Callout Program : |
| E - Bps/Par/Bits : 115200 8N1 |
| F - Hardware Flow Control : No |
| G - Software Flow Control : No |
+--------------------------------------------------------------+
Serial port setting of VAB-820
When the setup is complete, type the following GPS AT commands into Minicom:
AT+UGPRF=1, AT+UGRMC=1, AT+UGGSV=1, AT+UGZDA=1, and AT+UGPS=1,0
Wait for the “OK” message before sending the next AT command.
AT+UGPRF=1
OK
AT+UGRMC=1
OK
AT+UGGSV=1
OK
AT+UGZDA=1
OK
AT+UGPS=1,0
OK
Use the Minicom to set the serial device
/dev/ttyUSB7
in another terminal and it will
output the data received from the GPS module as illustrated in the screenshot below.
$GPRMC,142015,00,A,2501.93961,N,12133.66111,E,0.068,,030314,,,A*73
$GPGSV,4,1,13,01,34,184,29,03,49,023,47,06,26,042,41,07,44,317,26*75
$GPGSV,4,2,13,08,13,323,,11,60,192,,13,29,242,38,16,33,071,16*79
$GPGSV,4,3,13,19,65,356,44,23,18,208,12,27,35,034,27,30,37,145,29*7B
$GPGSV,4,4,13,32,01,154,*4B
$GPZDA,142015.00,03,03,2014,00,00*62
………
GPS NMEA message
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