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GPS buffer size ?

Dear Members ?

What's the best size for GPS Rxbuffer from UART with speed 9600 baud ?

I'm using Neo 6M GPS module,

Thanks

Parents
  • Data from GPS :

    $GPGSV,3,2,11,13,38,221,22,14,78,058,23,15,04,228,,17,10,025,*7E

    $A,151045.00,3207.99912,S,11559.30940,E,1,04,7.21,10.1,M,-30.6,M,,*56

    $GPGSA,A,2,30,07,05,13,,,,,,,,,7.28,7.21,1.00*08

    $GPGSV,3,1,11,05,47,269,25,07,24,119,23,08,10,130,,09,14,058,177775,47,269,25,07
    ,24,119,24,08,10,130,,09,14,058,16*74

    $GPGSV,3,2,11,13,38,221,21,14,78,058,23,15,04,228,,17,10,025,*7D

    $GPGSV,3,3,11,19,00,009,,28,72,016,16,30,55,148,22*49

    $GPGLL,3207.99923,S,11559.30946,E,151050.00,A,A*7B

    I reckon it's 512 bytes for buffer, but it's truncated when I transmitted to UART0 in I used 512 bytes buffer,

    currently I used 256 bytes,

    How can I increse it to 512 bytes without truncating it ? thanks

Reply
  • Data from GPS :

    $GPGSV,3,2,11,13,38,221,22,14,78,058,23,15,04,228,,17,10,025,*7E

    $A,151045.00,3207.99912,S,11559.30940,E,1,04,7.21,10.1,M,-30.6,M,,*56

    $GPGSA,A,2,30,07,05,13,,,,,,,,,7.28,7.21,1.00*08

    $GPGSV,3,1,11,05,47,269,25,07,24,119,23,08,10,130,,09,14,058,177775,47,269,25,07
    ,24,119,24,08,10,130,,09,14,058,16*74

    $GPGSV,3,2,11,13,38,221,21,14,78,058,23,15,04,228,,17,10,025,*7D

    $GPGSV,3,3,11,19,00,009,,28,72,016,16,30,55,148,22*49

    $GPGLL,3207.99923,S,11559.30946,E,151050.00,A,A*7B

    I reckon it's 512 bytes for buffer, but it's truncated when I transmitted to UART0 in I used 512 bytes buffer,

    currently I used 256 bytes,

    How can I increse it to 512 bytes without truncating it ? thanks

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