nmea_sfi.c

the example file that can decode the NMEA protocol

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

#include "NMEA_Lib.h"


#if (NMEA_INCLUDE_SFI == 1)

#include "NMEA_SFI.h"


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

    if('S' == sentence[0] && 'F' == sentence[1] && 'I' == sentence[2])
    {
        sentenceToPOINT(sentence, &NMEAObject->SFIObject.TotalNumberOfMessages, &sentence_index, NMEA_SFI_TOTALNUMBEROFMESSAGES, flags);
        sentenceToPOINT(sentence, &NMEAObject->SFIObject.MessageNumber, &sentence_index, NMEA_SFI_MESSAGENUMBER, flags);
        sentenceToUINT32(sentence, &NMEAObject->SFIObject.Frequency1, &sentence_index, NMEA_SFI_FREQUENCY1, flags);
        sentenceToCHAR(sentence, &NMEAObject->SFIObject.Mode1, &sentence_index, NMEA_SFI_MODE1, flags);
    }
    return ret_val;
}


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

    sentence[0] = 'S';
    sentence[1] = 'F';
    sentence[2] = 'I';

    sentenceFromPOINT(sentence, &NMEAObject->SFIObject.TotalNumberOfMessages, &sentence_index, NMEA_SFI_TOTALNUMBEROFMESSAGES, flags);
    sentenceFromPOINT(sentence, &NMEAObject->SFIObject.MessageNumber, &sentence_index, NMEA_SFI_MESSAGENUMBER, flags);
    sentenceFromUINT32(sentence, &NMEAObject->SFIObject.Frequency1, &sentence_index, NMEA_SFI_FREQUENCY1, flags);
    sentenceFromCHAR(sentence, &NMEAObject->SFIObject.Mode1, &sentence_index, NMEA_SFI_MODE1, flags);
    return ret_val;
}

#endif