#include "gps.h"#define MAX_GGA_PLAYLOAD 100#define MAX_GSA_PLAYLOAD 100#define MAX_GSV_PLAYLOAD 100#define MAX_RMC_PLAYLOAD 100#define MAX_VTG_PLAYLOAD 100#define RETURN_RX 1#define RETURN_GGA 2#define RETURN_GSA 3#define RETURN_GSV 4#define RETURN_RMC 5#define RETURN_VTG 6uint8_t load_nmea(uint8_t rx_shift, char *rx_buf, char *scan_buf);void nmea_gga(char *buf,DATA_GPS *pgps);void nmea_gsa(char *buf,DATA_GPS *pgps);void nmea_gsv(char *buf,DATA_GPS *pgps);void nmea_rmc(char *buf,DATA_GPS *pgps);void nmea_vtg(char *buf,DATA_GPS *pgps);