nmea_xtr.c

来自「the example file that can decode the NME」· C语言 代码 · 共 45 行

#include <stdlib.h>
#include <string.h>

#include "NMEA_Lib.h"


#if (NMEA_INCLUDE_XTR == 1)

#include "NMEA_XTR.h"


BOOL NMEA_ParseXTRSentence(CHAR * sentence, struct NMEAObject_t * NMEAObject, UINT32 * flags)
{
    UINT32 sentence_index = 3;
    BOOL ret_val = NMEA_FAILURE;

    if('X' == sentence[0] && 'T' == sentence[1] && 'R' == sentence[2])
    {
        sentenceToPOINT(sentence, &NMEAObject->XTRObject.MagnitudeOfCrossTrackError, &sentence_index, NMEA_XTR_MAGNITUDEOFCROSSTRACKERROR, flags);
        sentenceToCHAR(sentence, &NMEAObject->XTRObject.DirectionToSteer, &sentence_index, NMEA_XTR_DIRECTIONTOSTEER, flags);
        sentenceToCHAR(sentence, &NMEAObject->XTRObject.UnitsNauticalMiles, &sentence_index, NMEA_XTR_UNITSNAUTICALMILES, flags);
    }
    return ret_val;
}


BOOL NMEA_CreateXTRSentence(CHAR * sentence, struct NMEAObject_t * NMEAObject, UINT32 * flags)
{
    UINT32 sentence_index = 3;
    BOOL ret_val = NMEA_FAILURE;

    sentence[0] = 'X';
    sentence[1] = 'T';
    sentence[2] = 'R';

    sentenceFromPOINT(sentence, &NMEAObject->XTRObject.MagnitudeOfCrossTrackError, &sentence_index, NMEA_XTR_MAGNITUDEOFCROSSTRACKERROR, flags);
    sentenceFromCHAR(sentence, &NMEAObject->XTRObject.DirectionToSteer, &sentence_index, NMEA_XTR_DIRECTIONTOSTEER, flags);
    sentenceFromCHAR(sentence, &NMEAObject->XTRObject.UnitsNauticalMiles, &sentence_index, NMEA_XTR_UNITSNAUTICALMILES, flags);
    return ret_val;
}

#endif