Interface definition for the MMA7660 accelerometer driver. More...

Detailed Description

Interface definition for the MMA7660 accelerometer driver.

Author: Michael Andersen m.and.nosp@m.erse.nosp@m.n@cs..nosp@m.berk.nosp@m.eley..nosp@m.edu

Definition in file mma7660.h.

#include <stdint.h>
#include <stdbool.h>
#include "periph/i2c.h"

Include dependency graph for mma7660.h:

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Data Structures
struct	mma7660_params_t
	Parameters for an MMA7660 device. More...

struct	mma7660_t
	Device descriptor for an MMA7660 device. More...

struct	mma7660_data_t
	Data type for the result data. More...

Enumerations
enum	{ MMA7660_OK , MMA7660_I2C_ERR , MMA7660_I2C_READ_ERR , MMA7660_I2C_WRITE_ERR , MMA7660_READ_ERR }
	Return codes. More...

Functions
int	mma7660_init (mma7660_t dev, const mma7660_params_t params)
	Initialize an MMA7660 device.

int	mma7660_set_mode (const mma7660_t *dev, uint8_t active, uint8_t autowake, uint8_t autosleep, uint8_t prescale)
	Set the mode register.

int	mma7660_read_tilt (const mma7660_t dev, uint8_t res)
	Read the tilt register.

int	mma7660_write_sleep_count (const mma7660_t *dev, uint8_t sleep)
	Write the sleep count register.

int	mma7660_config_interrupts (const mma7660_t *dev, uint8_t isource_flags)
	Configure the interrupt sources.

int	mma7660_config_samplerate (const mma7660_t *dev, uint8_t amsr, uint8_t awsr, uint8_t filt)
	Configure the sample rate.

int	mma7660_config_pdet (const mma7660_t *dev, uint8_t pdth, uint8_t enabled_axes)
	Configure the tap detection.

int	mma7660_config_pd (const mma7660_t *dev, uint8_t pd)
	Configure the tap detection debounce count.

int	mma7660_read (const mma7660_t dev, mma7660_data_t data)
	Read the acceleration counts converted to mG.

int	mma7660_read_counts (const mma7660_t dev, int8_t x, int8_t y, int8_t z)
	Read the acceleration counts (unconverted)

MMA7660 constants
#define	MODE_ACTIVE_SHIFT (0U)

#define	MODE_AUTOWAKE_SHIFT (3U)

#define	MODE_AUTOSLEEP_SHIFT (4U)

#define	MODE_PRESCALE_SHIFT (5U)

#define	MODE_INTERRUPT_DEFAULT (0x40) /* Active low, push-pull */

#define	MMA7660_INTSOURCE_NONE (0x00)

#define	MMA7660_INTSOURCE_FB (0x01)

#define	MMA7660_INTSOURCE_UDLR (0x02)

#define	MMA7660_INTSOURCE_TAP (0x04)

#define	MMA7660_INTSOURCE_AUTOSLEEP (0x08)

#define	MMA7660_INTSOURCE_MEASURE (0x10)

#define	MMA7660_INTSOURCE_SHX (0x20)

#define	MMA7660_INTSOURCE_SHY (0x40)

#define	MMA7660_INTSOURCE_SHZ (0x80)

#define	MMA7660_SR_AMPD (0x00)

#define	MMA7660_SR_AM64 (0x01)

#define	MMA7660_SR_AM32 (0x02)

#define	MMA7660_SR_AM16 (0x03)

#define	MMA7660_SR_AM8 (0x04)

#define	MMA7660_SR_AM4 (0x05)

#define	MMA7660_SR_AM2 (0x06)

#define	MMA7660_SR_AM1 (0x07)

#define	MMA7660_SR_AW32 (0x00)

#define	MMA7660_SR_AW16 (0x08)

#define	MMA7660_SR_AW8 (0x10)

#define	MMA7660_SR_AW1 (0x18)

#define	MMA7660_PDET_X (0x20)

#define	MMA7660_PDET_Y (0x40)

#define	MMA7660_PDET_Z (0x80)

#define	MMA7660_ADDR (0x4C)

#define	MMA7660_MG_PER_COUNT (47U)

Data Structures