NMEA_format.h File Reference

converters for NMEA string output More...

#include "data_structures.h"
#include "embedded_math.h"

Go to the source code of this file.

Classes
class	string_buffer_t
	contains a string including it's length More...

Enumerations
enum	PLARS_TYPES { MC = 0 , BAL , BUGS , QNH }

Functions
void	format_NMEA_string_fast (const output_data_t &output_data, string_buffer_t &NMEA_buf, bool horizon_available)
	combine all data to be output to the NMEA port
void	format_NMEA_string_slow (const output_data_t &output_data, string_buffer_t &NMEA_buf)
	this procedure formats all our NMEA sequences
char *	to_ascii_2_decimals (int32_t number, char *s)
char *	to_ascii_1_decimal (int32_t number, char *s)
char *	to_ascii_2_decimals (float32_t number, char *s)
char *	to_ascii_1_decimal (float32_t number, char *s)
void	format_PLARV (float variometer, float avg_variometer, float pressure_altitude, float TAS, char *&p)
	TEK vario, average vario, pressure altitude and speed (TAS)
void	format_RMC (const coordinates_t &coordinates, char *&p)
	NMEA-format time, position, groundspeed, track data.
void	format_PLARS (float value, PLARS_TYPES type, char *&p)
	format setting NMEA for MacCready, Ballast, Bugs, QNH
bool	NMEA_checksum (const char *line)
	test a line for valid NMEA checksum

Detailed Description

converters for NMEA string output

---

Author

Dr. Klaus Schaefer

Definition in file NMEA_format.h.

Enumeration Type Documentation

PLARS_TYPES

enum PLARS_TYPES

Enumerator
MC
BAL
BUGS
QNH

Definition at line 21 of file NMEA_format.h.

Function Documentation

format_NMEA_string_fast()

void format_NMEA_string_fast	(	const output_data_t &	output_data,
		string_buffer_t &	NMEA_buf,
		bool	horizon_available
	)

combine all data to be output to the NMEA port

combine all data to be output to the NMEA port

Definition at line 436 of file NMEA_format.cpp.

References EAST, format_PLARA(), format_PLARV(), format_PLARW(), NORTH, and ZERO.

format_NMEA_string_slow()

void format_NMEA_string_slow	(	const output_data_t &	output_data,
		string_buffer_t &	NMEA_buf
	)

this procedure formats all our NMEA sequences

Definition at line 461 of file NMEA_format.cpp.

References EAST, format_GGA(), format_PLARB(), format_PLARD(), format_PLARW(), format_RMC(), and NORTH.

format_PLARS()

void format_PLARS	(	float	value,
		PLARS_TYPES	type,
		char *&	p
	)

format setting NMEA for MacCready, Ballast, Bugs, QNH

Definition at line 389 of file NMEA_format.cpp.

References append_string(), BAL, BUGS, MC, NMEA_append_tail(), PLARS, PLARS_BAL, PLARS_BUGS, PLARS_MC, PLARS_QNH, QNH, to_ascii_1_decimal(), and to_ascii_2_decimals().

format_PLARV()

void format_PLARV	(	float	variometer,
		float	avg_variometer,
		float	pressure_altitude,
		float	TAS,
		char *&	p
	)

TEK vario, average vario, pressure altitude and speed (TAS)

Definition at line 359 of file NMEA_format.cpp.

References append_string(), format_integer(), MPS_TO_KMPH, NMEA_append_tail(), PLARV, and to_ascii_2_decimals().

Referenced by format_NMEA_string_fast().

format_RMC()

void format_RMC	(	const coordinates_t &	coordinates,
		char *&	p
	)

NMEA-format time, position, groundspeed, track data.

Definition at line 174 of file NMEA_format.cpp.

References angle_format(), append_string(), coordinates_t::day, format_GNSS_timestamp(), GPRMC, coordinates_t::heading_motion, coordinates_t::latitude, coordinates_t::longitude, coordinates_t::month, MPS_TO_NMPH, NMEA_append_tail(), coordinates_t::sat_fix_type, coordinates_t::speed_motion, and coordinates_t::year.

Referenced by format_NMEA_string_slow().

NMEA_checksum()

bool NMEA_checksum

(

const char *

line

)

test a line for valid NMEA checksum

Definition at line 424 of file NMEA_format.cpp.

References hex4().

to_ascii_1_decimal() [1/2]

char * to_ascii_1_decimal ( float32_t  number, char *  s  )

inline

Definition at line 37 of file NMEA_format.h.

References s, and to_ascii_1_decimal().

to_ascii_1_decimal() [2/2]

char * to_ascii_1_decimal	(	int32_t	number,
		char *	s
	)

format an integer into ASCII with one decimal

Parameters

number

value * 10

Definition at line 85 of file NMEA_format.cpp.

References format_integer(), HEX, and s.

Referenced by format_GGA(), format_PLARA(), format_PLARS(), and to_ascii_1_decimal().

to_ascii_2_decimals() [1/2]

char * to_ascii_2_decimals ( float32_t  number, char *  s  )

inline

Definition at line 33 of file NMEA_format.h.

References s, and to_ascii_2_decimals().

to_ascii_2_decimals() [2/2]

char * to_ascii_2_decimals	(	int32_t	number,
		char *	s
	)

format an integer into ASCII with exactly two digits after the decimal point

Parameters

number

value * 100

Definition at line 62 of file NMEA_format.cpp.

References format_integer(), HEX, and s.

Referenced by format_PLARB(), format_PLARD(), format_PLARS(), format_PLARV(), and to_ascii_2_decimals().