nmea_vlw.c

来自「the example file that can decode the NME」· C语言 代码 · 共 47 行

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

#include "NMEA_Lib.h"


#if (NMEA_INCLUDE_VLW == 1)

#include "NMEA_VLW.h"


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

    if('V' == sentence[0] && 'L' == sentence[1] && 'W' == sentence[2])
    {
        sentenceToPOINT(sentence, &NMEAObject->VLWObject.TotalCumulativeDistance, &sentence_index, NMEA_VLW_TOTALCUMULATIVEDISTANCE, flags);
        sentenceToCHAR(sentence, &NMEAObject->VLWObject.TotalCumulativeDistanceNauticalMiles, &sentence_index, NMEA_VLW_TOTALCUMULATIVEDISTANCENAUTICALMILES, flags);
        sentenceToPOINT(sentence, &NMEAObject->VLWObject.DistanceSinceReset, &sentence_index, NMEA_VLW_DISTANCESINCERESET, flags);
        sentenceToCHAR(sentence, &NMEAObject->VLWObject.DistanceSinceResetNauticalMiles, &sentence_index, NMEA_VLW_DISTANCESINCERESETNAUTICALMILES, flags);
    }
    return ret_val;
}


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

    sentence[0] = 'V';
    sentence[1] = 'L';
    sentence[2] = 'W';

    sentenceFromPOINT(sentence, &NMEAObject->VLWObject.TotalCumulativeDistance, &sentence_index, NMEA_VLW_TOTALCUMULATIVEDISTANCE, flags);
    sentenceFromCHAR(sentence, &NMEAObject->VLWObject.TotalCumulativeDistanceNauticalMiles, &sentence_index, NMEA_VLW_TOTALCUMULATIVEDISTANCENAUTICALMILES, flags);
    sentenceFromPOINT(sentence, &NMEAObject->VLWObject.DistanceSinceReset, &sentence_index, NMEA_VLW_DISTANCESINCERESET, flags);
    sentenceFromCHAR(sentence, &NMEAObject->VLWObject.DistanceSinceResetNauticalMiles, &sentence_index, NMEA_VLW_DISTANCESINCERESETNAUTICALMILES, flags);
    return ret_val;
}

#endif