I have Navisys GR-401 gps receiver which works just fine with SiRF-Live. I know it uses COM3, but I am unable to read data with matlab.
with:
s = serialport(‘COM3’,9600);
gps = gpsdev(s,’OutputFormat’,"timetable");
and
read(gps)
gives error:
Obtaining the required NMEA sentences (RMC, GGA and GSA) is taking longer than expected. Verify the physical connection of the GPS device to the specified serial port and the configuration of the GPS device.
also
gps = gpsReceiver(‘COM3’);
and
read(gps)
gives error
Warning: Unsuccessful read: The input buffer was filled before the Terminator was reached.
‘serial’ unable to read all requested data. For more information on possible reasons, see Serial Read Warnings.

any ideas what is the culprit here?I have Navisys GR-401 gps receiver which works just fine with SiRF-Live. I know it uses COM3, but I am unable to read data with matlab.
with:
s = serialport(‘COM3’,9600);
gps = gpsdev(s,’OutputFormat’,"timetable");
and
read(gps)
gives error:
Obtaining the required NMEA sentences (RMC, GGA and GSA) is taking longer than expected. Verify the physical connection of the GPS device to the specified serial port and the configuration of the GPS device.
also
gps = gpsReceiver(‘COM3’);
and
read(gps)
gives error
Warning: Unsuccessful read: The input buffer was filled before the Terminator was reached.
‘serial’ unable to read all requested data. For more information on possible reasons, see Serial Read Warnings.

any ideas what is the culprit here? I have Navisys GR-401 gps receiver which works just fine with SiRF-Live. I know it uses COM3, but I am unable to read data with matlab.
with:
s = serialport(‘COM3’,9600);
gps = gpsdev(s,’OutputFormat’,"timetable");
and
read(gps)
gives error:
Obtaining the required NMEA sentences (RMC, GGA and GSA) is taking longer than expected. Verify the physical connection of the GPS device to the specified serial port and the configuration of the GPS device.
also
gps = gpsReceiver(‘COM3’);
and
read(gps)
gives error
Warning: Unsuccessful read: The input buffer was filled before the Terminator was reached.
‘serial’ unable to read all requested data. For more information on possible reasons, see Serial Read Warnings.

any ideas what is the culprit here? gps, gr-401 MATLAB Answers — New Questions

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