qmc5883l.c File Reference

QST QMC5883L 3-axis magnetometer driver interface (I2C). More...

#include "peripherals/qmc5883l.h"

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Macros
#define	QMC5883L_REG_DATXL   0x00
#define	QMC5883L_REG_DATXM   0x01
#define	QMC5883L_REG_DATYL   0x02
#define	QMC5883L_REG_DATYM   0x03
#define	QMC5883L_REG_DATZL   0x04
#define	QMC5883L_REG_DATZM   0x05
#define	QMC5883L_REG_STATUS   0x06
#define	QMC5883L_REG_TEMPM   0x07
#define	QMC5883L_REG_TEMPL   0x08
#define	QMC5883L_REG_CONTROL_1   0x09 /* settings for MODE */
#define	QMC5883L_REG_CONTROL_2   0x0A /* settings for INT_ENB */
#define	QMC5883L_REG_RESET_PERIOD   0x0B
#define	QMC5883L_REG_IDC   0x0C /* OEM reserved */
#define	QMC5883L_REG_IDD   0x0D /* OEM reserved */
#define	QMC5883L_MODE_STBY   0x00
#define	QMC5883L_MODE_CONT   0x01
#define	QMC5883L_RNG_2G   0x00
#define	QMC5883L_RNG_8G   0x10
#define	QMC5883L_OSR_512   0x00 /* Use 512 if powerusage of chip is not an issue */
#define	QMC5883L_OSR_256   0x40
#define	QMC5883L_OSR_128   0x80
#define	QMC5883L_OSR_64   0xC0
#define	Int16FromBuf(_buf, _idx)   ((int16_t)(_buf[_idx] | (_buf[_idx+1] << 8)))

Functions
void	qmc5883l_init (struct Qmc5883l *mag, struct i2c_periph *i2c_p, uint8_t addr, uint8_t data_rate)
void	qmc5883l_configure (struct Qmc5883l *mag)
void	qmc5883l_read (struct Qmc5883l *mag)
void	qmc5883l_event (struct Qmc5883l *mag)

Detailed Description

QST QMC5883L 3-axis magnetometer driver interface (I2C).

Definition in file qmc5883l.c.

Macro Definition Documentation

Int16FromBuf

#define Int16FromBuf	(		_buf,
			_idx
	)		((int16_t)(_buf[_idx] | (_buf[_idx+1] << 8)))

Definition at line 151 of file qmc5883l.c.

QMC5883L_MODE_CONT

#define QMC5883L_MODE_CONT   0x01

Definition at line 54 of file qmc5883l.c.

QMC5883L_MODE_STBY

#define QMC5883L_MODE_STBY   0x00

Definition at line 53 of file qmc5883l.c.

QMC5883L_OSR_128

#define QMC5883L_OSR_128   0x80

Definition at line 63 of file qmc5883l.c.

QMC5883L_OSR_256

#define QMC5883L_OSR_256   0x40

Definition at line 62 of file qmc5883l.c.

QMC5883L_OSR_512

#define QMC5883L_OSR_512   0x00 /* Use 512 if powerusage of chip is not an issue */

Definition at line 61 of file qmc5883l.c.

QMC5883L_OSR_64

#define QMC5883L_OSR_64   0xC0

Definition at line 64 of file qmc5883l.c.

QMC5883L_REG_CONTROL_1

#define QMC5883L_REG_CONTROL_1   0x09 /* settings for MODE */

Definition at line 45 of file qmc5883l.c.

QMC5883L_REG_CONTROL_2

#define QMC5883L_REG_CONTROL_2   0x0A /* settings for INT_ENB */

Definition at line 46 of file qmc5883l.c.

QMC5883L_REG_DATXL

#define QMC5883L_REG_DATXL   0x00

Definition at line 30 of file qmc5883l.c.

QMC5883L_REG_DATXM

#define QMC5883L_REG_DATXM   0x01

Definition at line 31 of file qmc5883l.c.

QMC5883L_REG_DATYL

#define QMC5883L_REG_DATYL   0x02

Definition at line 32 of file qmc5883l.c.

QMC5883L_REG_DATYM

#define QMC5883L_REG_DATYM   0x03

Definition at line 33 of file qmc5883l.c.

QMC5883L_REG_DATZL

#define QMC5883L_REG_DATZL   0x04

Definition at line 34 of file qmc5883l.c.

QMC5883L_REG_DATZM

#define QMC5883L_REG_DATZM   0x05

Definition at line 35 of file qmc5883l.c.

QMC5883L_REG_IDC

#define QMC5883L_REG_IDC   0x0C /* OEM reserved */

Definition at line 49 of file qmc5883l.c.

QMC5883L_REG_IDD

#define QMC5883L_REG_IDD   0x0D /* OEM reserved */

Definition at line 50 of file qmc5883l.c.

QMC5883L_REG_RESET_PERIOD

#define QMC5883L_REG_RESET_PERIOD   0x0B

Definition at line 47 of file qmc5883l.c.

QMC5883L_REG_STATUS

#define QMC5883L_REG_STATUS   0x06

Definition at line 38 of file qmc5883l.c.

QMC5883L_REG_TEMPL

#define QMC5883L_REG_TEMPL   0x08

Definition at line 42 of file qmc5883l.c.

QMC5883L_REG_TEMPM

#define QMC5883L_REG_TEMPM   0x07

Definition at line 41 of file qmc5883l.c.

QMC5883L_RNG_2G

#define QMC5883L_RNG_2G   0x00

Definition at line 57 of file qmc5883l.c.

QMC5883L_RNG_8G

#define QMC5883L_RNG_8G   0x10

Definition at line 58 of file qmc5883l.c.

Function Documentation

qmc5883l_configure()

void qmc5883l_configure

(

struct Qmc5883l *

mag

)

Definition at line 80 of file qmc5883l.c.

References i2c_transaction::buf, Qmc5883l::i2c_p, Qmc5883l::i2c_trans, i2c_transmit(), I2CTransDone, I2CTransFailed, I2CTransSuccess, Qmc5883l::initialized, QMC5883L_CONF_CCM_DONE, QMC5883L_CONF_CCR_DONE, QMC5883L_CONF_TMRC_DONE, QMC5883L_CONF_UNINIT, QMC5883L_MODE_CONT, QMC5883L_ODR_200, QMC5883L_OSR_512, QMC5883L_REG_CONTROL_1, QMC5883L_REG_RESET_PERIOD, QMC5883L_RNG_8G, QMC5883L_STATUS_IDLE, i2c_transaction::slave_addr, i2c_transaction::status, and Qmc5883l::status.

Referenced by qmc5883l_periodic().

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qmc5883l_event()

void qmc5883l_event

(

struct Qmc5883l *

mag

)

Definition at line 154 of file qmc5883l.c.

References i2c_transaction::buf, Qmc5883l::data, Qmc5883l::data_available, Qmc5883l::i2c_trans, I2CTransDone, I2CTransFailed, I2CTransSuccess, Qmc5883l::initialized, Int16FromBuf, QMC5883L_STATUS_IDLE, QMC5883L_STATUS_MEAS, i2c_transaction::status, and Qmc5883l::status.

Referenced by mag_qmc5883l_module_event().

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qmc5883l_init()

void qmc5883l_init	(	struct Qmc5883l *	mag,
		struct i2c_periph *	i2c_p,
		uint8_t	addr,
		uint8_t	data_rate
	)

Definition at line 66 of file qmc5883l.c.

References Qmc5883l::data_available, Qmc5883l::data_rate, Qmc5883l::i2c_p, Qmc5883l::i2c_trans, I2CTransDone, Qmc5883l::initialized, QMC5883L_CONF_UNINIT, i2c_transaction::slave_addr, i2c_transaction::status, and Qmc5883l::status.

Referenced by mag_qmc5883l_module_init().

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qmc5883l_read()

void qmc5883l_read

(

struct Qmc5883l *

mag

)

Definition at line 126 of file qmc5883l.c.

References i2c_transaction::buf, Qmc5883l::i2c_p, Qmc5883l::i2c_trans, i2c_transceive(), QMC5883L_REG_DATXL, QMC5883L_REG_DATXM, QMC5883L_REG_DATYL, QMC5883L_REG_DATYM, QMC5883L_REG_DATZL, QMC5883L_REG_DATZM, QMC5883L_REG_STATUS, QMC5883L_STATUS_IDLE, QMC5883L_STATUS_MEAS, i2c_transaction::slave_addr, and Qmc5883l::status.

Referenced by qmc5883l_periodic().

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