compass_ak8975.c File Reference

#include <stdbool.h>
#include <stdint.h>
#include <math.h>
#include "build_config.h"
#include <platform.h>
#include "common/axis.h"
#include "common/maths.h"
#include "system.h"
#include "gpio.h"
#include "bus_i2c.h"
#include "sensor.h"
#include "compass.h"
#include "compass_ak8975.h"

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Macros
#define	AK8975_MAG_I2C_ADDRESS   0x0C
#define	AK8975_MAG_REG_WHO_AM_I   0x00
#define	AK8975_MAG_REG_INFO   0x01
#define	AK8975_MAG_REG_STATUS1   0x02
#define	AK8975_MAG_REG_HXL   0x03
#define	AK8975_MAG_REG_HXH   0x04
#define	AK8975_MAG_REG_HYL   0x05
#define	AK8975_MAG_REG_HYH   0x06
#define	AK8975_MAG_REG_HZL   0x07
#define	AK8975_MAG_REG_HZH   0x08
#define	AK8975_MAG_REG_STATUS2   0x09
#define	AK8975_MAG_REG_CNTL   0x0a
#define	AK8975_MAG_REG_ASCT   0x0c
#define	AK8975A_ASAX   0x10
#define	AK8975A_ASAY   0x11
#define	AK8975A_ASAZ   0x12
#define	BIT_STATUS1_REG_DATA_READY   (1 << 0)
#define	BIT_STATUS2_REG_DATA_ERROR   (1 << 2)
#define	BIT_STATUS2_REG_MAG_SENSOR_OVERFLOW   (1 << 3)

Functions
bool	ak8975Detect (mag_t *mag)
void	ak8975Init (void)
bool	ak8975Read (int16_t *magData)

Macro Definition Documentation

#define AK8975_MAG_I2C_ADDRESS   0x0C

#define AK8975_MAG_REG_ASCT   0x0c

#define AK8975_MAG_REG_CNTL   0x0a

#define AK8975_MAG_REG_HXH   0x04

#define AK8975_MAG_REG_HXL   0x03

#define AK8975_MAG_REG_HYH   0x06

#define AK8975_MAG_REG_HYL   0x05

#define AK8975_MAG_REG_HZH   0x08

#define AK8975_MAG_REG_HZL   0x07

#define AK8975_MAG_REG_INFO   0x01

#define AK8975_MAG_REG_STATUS1   0x02

#define AK8975_MAG_REG_STATUS2   0x09

#define AK8975_MAG_REG_WHO_AM_I   0x00

#define AK8975A_ASAX   0x10

#define AK8975A_ASAY   0x11

#define AK8975A_ASAZ   0x12

#define BIT_STATUS1_REG_DATA_READY   (1 << 0)

#define BIT_STATUS2_REG_DATA_ERROR   (1 << 2)

#define BIT_STATUS2_REG_MAG_SENSOR_OVERFLOW   (1 << 3)

Function Documentation

bool ak8975Detect

(

mag_t *

mag

)

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void ak8975Init

(

void

)

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bool ak8975Read

(

int16_t *

magData

)

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