nmea_alm.c

the example file that can decode the NMEA protocol

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

#include "NMEA_Lib.h"


#if (NMEA_INCLUDE_ALM == 1)

#include "NMEA_ALM.h"


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

    if('A' == sentence[0] && 'L' == sentence[1] && 'M' == sentence[2])
    {
        sentenceToPOINT(sentence, &NMEAObject->ALMObject.TotalNumberOfMessages, &sentence_index, NMEA_ALM_TOTALNUMBEROFMESSAGES, flags);
        sentenceToPOINT(sentence, &NMEAObject->ALMObject.MessageNumber, &sentence_index, NMEA_ALM_MESSAGENUMBER, flags);
        sentenceToUINT8(sentence, &NMEAObject->ALMObject.SatellitePRNNumber, &sentence_index, NMEA_ALM_SATELLITEPRNNUMBER, flags);
        sentenceToPOINT(sentence, &NMEAObject->ALMObject.GPSWeekNumber, &sentence_index, NMEA_ALM_GPSWEEKNUMBER, flags);
        sentenceToUINT8(sentence, &NMEAObject->ALMObject.SVHealth, &sentence_index, NMEA_ALM_SVHEALTH, flags);
        sentenceToUINT16(sentence, &NMEAObject->ALMObject.Eccentricity, &sentence_index, NMEA_ALM_ECCENTRICITY, flags);
        sentenceToUINT8(sentence, &NMEAObject->ALMObject.AlmanacReferenceTime, &sentence_index, NMEA_ALM_ALMANACREFERENCETIME, flags);
        sentenceToUINT16(sentence, &NMEAObject->ALMObject.InclinationAngle, &sentence_index, NMEA_ALM_INCLINATIONANGLE, flags);
        sentenceToUINT16(sentence, &NMEAObject->ALMObject.RateOfRightAscension, &sentence_index, NMEA_ALM_RATEOFRIGHTASCENSION, flags);
        sentenceToUINT16(sentence, &NMEAObject->ALMObject.RootOfSemiMajorAxis, &sentence_index, NMEA_ALM_ROOTOFSEMIMAJORAXIS, flags);
        sentenceToUINT16(sentence, &NMEAObject->ALMObject.ArgumentOfPerigee, &sentence_index, NMEA_ALM_ARGUMENTOFPERIGEE, flags);
        sentenceToUINT16(sentence, &NMEAObject->ALMObject.LongitudeOfAscensionNode, &sentence_index, NMEA_ALM_LONGITUDEOFASCENSIONNODE, flags);
        sentenceToUINT16(sentence, &NMEAObject->ALMObject.MeanAnomaly, &sentence_index, NMEA_ALM_MEANANOMALY, flags);
        sentenceToUINT16(sentence, &NMEAObject->ALMObject.F0ClockParameter, &sentence_index, NMEA_ALM_F0CLOCKPARAMETER, flags);
        sentenceToUINT16(sentence, &NMEAObject->ALMObject.F1ClockParameter, &sentence_index, NMEA_ALM_F1CLOCKPARAMETER, flags);
    }
    return ret_val;
}


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

    sentence[0] = 'A';
    sentence[1] = 'L';
    sentence[2] = 'M';

    sentenceFromPOINT(sentence, &NMEAObject->ALMObject.TotalNumberOfMessages, &sentence_index, NMEA_ALM_TOTALNUMBEROFMESSAGES, flags);
    sentenceFromPOINT(sentence, &NMEAObject->ALMObject.MessageNumber, &sentence_index, NMEA_ALM_MESSAGENUMBER, flags);
    sentenceFromUINT8(sentence, &NMEAObject->ALMObject.SatellitePRNNumber, &sentence_index, NMEA_ALM_SATELLITEPRNNUMBER, flags);
    sentenceFromPOINT(sentence, &NMEAObject->ALMObject.GPSWeekNumber, &sentence_index, NMEA_ALM_GPSWEEKNUMBER, flags);
    sentenceFromUINT8(sentence, &NMEAObject->ALMObject.SVHealth, &sentence_index, NMEA_ALM_SVHEALTH, flags);
    sentenceFromUINT16(sentence, &NMEAObject->ALMObject.Eccentricity, &sentence_index, NMEA_ALM_ECCENTRICITY, flags);
    sentenceFromUINT8(sentence, &NMEAObject->ALMObject.AlmanacReferenceTime, &sentence_index, NMEA_ALM_ALMANACREFERENCETIME, flags);
    sentenceFromUINT16(sentence, &NMEAObject->ALMObject.InclinationAngle, &sentence_index, NMEA_ALM_INCLINATIONANGLE, flags);
    sentenceFromUINT16(sentence, &NMEAObject->ALMObject.RateOfRightAscension, &sentence_index, NMEA_ALM_RATEOFRIGHTASCENSION, flags);
    sentenceFromUINT16(sentence, &NMEAObject->ALMObject.RootOfSemiMajorAxis, &sentence_index, NMEA_ALM_ROOTOFSEMIMAJORAXIS, flags);
    sentenceFromUINT16(sentence, &NMEAObject->ALMObject.ArgumentOfPerigee, &sentence_index, NMEA_ALM_ARGUMENTOFPERIGEE, flags);
    sentenceFromUINT16(sentence, &NMEAObject->ALMObject.LongitudeOfAscensionNode, &sentence_index, NMEA_ALM_LONGITUDEOFASCENSIONNODE, flags);
    sentenceFromUINT16(sentence, &NMEAObject->ALMObject.MeanAnomaly, &sentence_index, NMEA_ALM_MEANANOMALY, flags);
    sentenceFromUINT16(sentence, &NMEAObject->ALMObject.F0ClockParameter, &sentence_index, NMEA_ALM_F0CLOCKPARAMETER, flags);
    sentenceFromUINT16(sentence, &NMEAObject->ALMObject.F1ClockParameter, &sentence_index, NMEA_ALM_F1CLOCKPARAMETER, flags);
    return ret_val;
}

#endif