fsl_mma8451.c File Reference

#include "fsl_mma8451.h"
#include "i2c_sim.h"
#include <stdio.h>
#include <string.h>

Enumerations
enum	_mma8451_i2c_constants {   kMMA8451_I2C_Address,   kMMA8451_I2C_Address_With_SAO_Set }
	I2C related constants for the MMA8451. More...

Functions
uint8_t	mma8451_read_register (const mma8451_device_t *device, uint8_t reg_addr)
	Read a single register of the MMA8451. More...
int32_t	mma8451_write_register (const mma8451_device_t *device, uint8_t reg_addr, uint8_t reg_val)
	Write a single register of the MMA8451. More...
int32_t	mma8451_init (mma8451_device_t *device, uint8_t i2c_addr, uint32_t baud_kbps)
	Initialize the MMA8451 driver instance. More...
int32_t	mma8451_get_acceleration (const mma8451_device_t *device, acceleration_t *accel)
	Read the current acceleration values. More...

Enumeration Type Documentation

enum _mma8451_i2c_constants

Enumerator
kMMA8451_I2C_Address
kMMA8451_I2C_Address_With_SAO_Set

Function Documentation

int32_t mma8451_get_acceleration	(	const mma8451_device_t *	device,
		acceleration_t *	accel
	)

Parameters

device	Pointer to a valid device instance structure.
accel	Pointer to a structure that will be filled in with the current acceleration values for all three axes.

Returns

kStatus_Success or error code.

Return values

kStatus_Success

int32_t mma8451_init	(	mma8451_device_t *	device,
		uint8_t	i2c_addr,
		uint32_t	baud_kbps
	)

Parameters

device	Device driver state structure that will be filled in by this function. It is the responsibility of the caller to provide storage for this structure, and to free that storage when the driver is no longer needed.
isSaoSet
baud_kbps

Returns

kStatus_Success or error code.

Return values

kStatus_Success
kMMA8451_Invalid_I2C_Address_Error

uint8_t mma8451_read_register	(	const mma8451_device_t *	device,
		uint8_t	reg_addr
	)

Parameters

device	Pointer to a valid device instance structure.
reg_addr	Address of the internal MMA8451 register to read.

Returns

The register's value.

int32_t mma8451_write_register	(	const mma8451_device_t *	device,
		uint8_t	reg_addr,
		uint8_t	reg_val
	)

Parameters

device	Pointer to a valid device instance structure.
reg_addrAddress	of the internal MMA8451 register to change the value of.
reg_val	New value for the register.

Returns

kStatus_Success or error code.

Return values

kStatus_Success