| T O P I C R E V I E W |
| matu91 |
Posted - 19 juil. 2010 : 01:13:21
Hi everyone!
I'm working on a programme which uses the GPS data of my LG LN550 PNA.
I'm programming in VS2005 C++, and I've written my own serial handling functions, they work great,I've tested them.
But there's some problem. I can read about 1.7 kbytes of data from the serial port, looks like:
$GPRMC,223231.000,A,4708.0453,N,01926.0728,E,0.13,6.56,180710,,,A*6D
$GPGSA,A,2,11,03,19,,,,,,,,,,5.1,5.0,1.0*38
$GPRMC,223232.000,A,4708.0456,N,01926.0721,E,0.60,21.11,180710,,,A*50
$GPGSA,A,2,11,03,19,,,,,,,,,,5.1,5.0,1.0*38
$GPRMC,223233.000,A,4708.0461,N,01926.0715,E,0.00,,180710,,,A*79
$GPGGA,223234.000,4708.0461,N,01926.0715,E,1,03,5.0,44.0,M,40.7,M,,0000*68
That's good.  I'm happy. BUT! After a few seconds, I receive:
GRC232.0,,7807,,12.71E00,101,,*9
GGAA21,91,,,,,3534103
$PM,23500A40.37N09602,,.0,870,A7
$PG,2360040.37N09602,,,3344.,,07M,006
$PS,,,11,6,,,,,.,.,.*C
GGV311,96,9,20,611,46,6,2,007*0
GGV321,65,6,1,712,82,5,71,1233*9
GGV331,20,1,82,608,60,9,92,534*E
GRC232.0,,7807,,12.71E00,101,,*B
You see, the NMEA sentences are totally mixed. If I close, and then open the port, it works for a few more seconds, but then it fails again. Closing and then opening the port all the time is not so good for me, because I need the GPRMC data in every second.
Any ideas? 
Could anyone help me out of this problem?
Thank you very much!
Regards,
matu91 |
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