EVAM8M Class Reference

EVA-M8M NMEA receiver. Call begin(), register callbacks, then turnOn(). The UART must outlive the driver; turnOn()/turnOff() control listening only. More...

#include <EVAM8M.hpp>

Inheritance diagram for EVAM8M:

Public Member Functions
	EVAM8M (SerialPort &uart)
	Bind the receiver UART without starting reception.
void	begin ()
	Configure 9600-baud NMEA reception; listening remains disabled.
void	turnOn ()
	Start listening for NMEA sentences.
void	turnOff ()
	Stop listening without switching off receiver power.
bool	isOn ()
	Return whether the UART is currently listening.
void	useGSA ()
	Enable parsing and caching of subsequent GNGSA sentences.
char	getGsaOpMode ()
	Return cached GSA operating mode (A/M), or NUL before a valid GSA.
uint8_t	getGsaNavMode ()
	Return cached GSA navigation mode (1=no fix, 2=2D, 3=3D), initially 0.
float	getGsaPDoP ()
	Return cached dimensionless position dilution of precision, initially 99.99.
float	getGsaHDoP ()
	Return cached dimensionless horizontal dilution of precision, initially 99.99.
float	getGsaVDoP ()
	Return cached dimensionless vertical dilution of precision, initially 99.99.
void	useRMC ()
	Enable parsing and caching of subsequent GNRMC speed and course fields.
float	getRmcSpeedOverGround ()
	Return cached RMC speed over ground in knots; initially zero.
float	getRmcCourseOverGround ()
	Return cached RMC course over ground in degrees; initially zero.
Public Member Functions inherited from Gps
void	onReadDone (void(*func)(uint8_t fixQuality, uint8_t hour, uint8_t minute, uint8_t sec, uint16_t subsec, int32_t latitude, int32_t longitude, int32_t altitude, uint8_t numSatellites))
	Register the GGA callback; nullptr disables legacy GGA notifications.

Additional Inherited Members
Public Attributes inherited from Gps
void(*	onNMEAReceived )(Gps &) = nullptr
	Optional raw-NMEA notification used by MT3339 after receiving VTG. Invoked only when no onReadDone() callback is installed; read cached sentences during the callback because most caches are cleared immediately afterward.
Static Protected Member Functions inherited from Gps
static uint8_t	ParseGGA (const char *msg, uint8_t *hour, uint8_t *minute, uint8_t *sec, uint16_t *subsec, int32_t *latitude, int32_t *longitude, uint8_t *numSat, char *strHDOP, int32_t *altitude, int32_t *sep, int32_t *diffAge, int32_t *diffStation)
static bool	ParseGSA (const char *msg, char *opMode, uint8_t *navMode, float *pdop, float *hdop, float *vdop)
static bool	ParseRMC (const char *msg, float *spd, float *cog)
Protected Attributes inherited from Gps
void(*	callbackRead )(uint8_t fixQuality, uint8_t hour, uint8_t minute, uint8_t sec, uint16_t subsec, int32_t latitude, int32_t longitude, int32_t altitude, uint8_t numSatellites)

Detailed Description

EVA-M8M NMEA receiver. Call begin(), register callbacks, then turnOn(). The UART must outlive the driver; turnOn()/turnOff() control listening only.

Author

Jongsoo Jeong (CoXlab)

Date

2016. 9. 7.

Member Function Documentation

isOn()

bool EVAM8M::isOn ( )

virtual

Return whether the UART is currently listening.

Implements Gps.

turnOff()

void EVAM8M::turnOff ( )

virtual

Stop listening without switching off receiver power.

Implements Gps.

turnOn()

void EVAM8M::turnOn ( )

virtual

Start listening for NMEA sentences.

Implements Gps.

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The documentation for this class was generated from the following file:

• include/dev/EVAM8M.hpp