adxl362.c File Reference

Implementation of ADXL362 Driver. More...

#include <stdlib.h>
#include "adxl362.h"
#include "no_os_alloc.h"

Include dependency graph for adxl362.c:

Functions
int32_t	adxl362_init (struct adxl362_dev **device, struct adxl362_init_param init_param)
	Initializes communication with the device and checks if the part is present by reading the device id.
int32_t	adxl362_remove (struct adxl362_dev *dev)
	Free the resources allocated by adxl362_init().
void	adxl362_set_register_value (struct adxl362_dev *dev, uint16_t register_value, uint8_t register_address, uint8_t bytes_number)
	Writes data into a register.
void	adxl362_get_register_value (struct adxl362_dev *dev, uint8_t *read_data, uint8_t register_address, uint8_t bytes_number)
	Performs a burst read of a specified number of registers.
void	adxl362_get_fifo_value (struct adxl362_dev *dev, uint8_t *buffer, uint16_t bytes_number)
	Reads multiple bytes from the device's FIFO buffer.
void	adxl362_software_reset (struct adxl362_dev *dev)
	Resets the device via SPI communication bus.
void	adxl362_set_power_mode (struct adxl362_dev *dev, uint8_t pwr_mode)
	Places the device into standby/measure mode.
void	adxl362_set_range (struct adxl362_dev *dev, uint8_t g_range)
	Selects the measurement range.
void	adxl362_set_output_rate (struct adxl362_dev *dev, uint8_t out_rate)
	Selects the Output Data Rate of the device.
void	adxl362_get_xyz (struct adxl362_dev *dev, int16_t *x, int16_t *y, int16_t *z)
	Reads the 3-axis raw data from the accelerometer.
void	adxl362_get_g_xyz (struct adxl362_dev *dev, float *x, float *y, float *z)
	Reads the 3-axis raw data from the accelerometer and converts it to g.
float	adxl362_read_temperature (struct adxl362_dev *dev)
	Reads the temperature of the device.
void	adxl362_fifo_setup (struct adxl362_dev *dev, uint8_t mode, uint16_t water_mark_lvl, uint8_t en_temp_read)
	Configures the FIFO feature.
void	adxl362_setup_activity_detection (struct adxl362_dev *dev, uint8_t ref_or_abs, uint16_t threshold, uint8_t time)
	Configures activity detection.
void	adxl362_setup_inactivity_detection (struct adxl362_dev *dev, uint8_t ref_or_abs, uint16_t threshold, uint16_t time)
	Configures inactivity detection.

Detailed Description

Implementation of ADXL362 Driver.

Author

DNechita(Dan.N.nosp@m.echi.nosp@m.ta@an.nosp@m.alog.nosp@m..com)

Copyright 2012(c) Analog Devices, Inc.

SPDX-License-Identifier: BSD-3-Clause

Function Documentation

adxl362_fifo_setup()

void adxl362_fifo_setup	(	struct adxl362_dev *	dev,
		uint8_t	mode,
		uint16_t	water_mark_lvl,
		uint8_t	en_temp_read )

Configures the FIFO feature.

Parameters

dev	- The device structure.
mode	- Mode selection. Example: ADXL362_FIFO_DISABLE - FIFO is disabled. ADXL362_FIFO_OLDEST_SAVED - Oldest saved mode. ADXL362_FIFO_STREAM - Stream mode. ADXL362_FIFO_TRIGGERED - Triggered mode.
water_mark_lvl	- Specifies the number of samples to store in the FIFO.
en_temp_read	- Store Temperature Data to FIFO. Example: 1 - temperature data is stored in the FIFO together with x-, y- and x-axis data. 0 - temperature data is skipped.

adxl362_get_fifo_value()

void adxl362_get_fifo_value	(	struct adxl362_dev *	dev,
		uint8_t *	buffer,
		uint16_t	bytes_number )

Reads multiple bytes from the device's FIFO buffer.

Parameters

dev	- The device structure.
buffer	- Stores the read bytes.
bytes_number	- Number of bytes to read.

adxl362_get_g_xyz()

void adxl362_get_g_xyz	(	struct adxl362_dev *	dev,
		float *	x,
		float *	y,
		float *	z )

Reads the 3-axis raw data from the accelerometer and converts it to g.

Parameters

dev	- The device structure.
x	- Stores the X-axis data.
y	- Stores the Y-axis data.
z	- Stores the Z-axis data.

adxl362_get_register_value()

void adxl362_get_register_value	(	struct adxl362_dev *	dev,
		uint8_t *	read_data,
		uint8_t	register_address,
		uint8_t	bytes_number )

Performs a burst read of a specified number of registers.

Parameters

dev	- The device structure.
read_data	- The read values are stored in this buffer.
register_address	- The start address of the burst read.
bytes_number	- Number of bytes to read.

adxl362_get_xyz()

void adxl362_get_xyz	(	struct adxl362_dev *	dev,
		int16_t *	x,
		int16_t *	y,
		int16_t *	z )

Reads the 3-axis raw data from the accelerometer.

Parameters

dev	- The device structure.
x	- Stores the X-axis data(as two's complement).
y	- Stores the Y-axis data(as two's complement).
z	- Stores the Z-axis data(as two's complement).

adxl362_init()

int32_t adxl362_init	(	struct adxl362_dev **	device,
		struct adxl362_init_param	init_param )

Initializes communication with the device and checks if the part is present by reading the device id.

Parameters

device	- The device structure.
init_param	- The structure that contains the device initial parameters.

Returns

0 - the initialization was successful and the device is present; -1 - an error occurred.

adxl362_read_temperature()

float adxl362_read_temperature

(

struct adxl362_dev *

dev

)

Reads the temperature of the device.

Parameters

dev	- The device structure.

Returns

temp_celsius - The value of the temperature(degree s Celsius).

adxl362_remove()

int32_t adxl362_remove

(

struct adxl362_dev *

dev

)

Free the resources allocated by adxl362_init().

Parameters

dev	- The device structure.

Returns

ret - The result of the remove procedure.

adxl362_set_output_rate()

void adxl362_set_output_rate	(	struct adxl362_dev *	dev,
		uint8_t	out_rate )

Selects the Output Data Rate of the device.

Parameters

dev	- The device structure.
out_rate	- Output Data Rate option. Example: ADXL362_ODR_12_5_HZ - 12.5Hz ADXL362_ODR_25_HZ - 25Hz ADXL362_ODR_50_HZ - 50Hz ADXL362_ODR_100_HZ - 100Hz ADXL362_ODR_200_HZ - 200Hz ADXL362_ODR_400_HZ - 400Hz

adxl362_set_power_mode()

void adxl362_set_power_mode	(	struct adxl362_dev *	dev,
		uint8_t	pwr_mode )

Places the device into standby/measure mode.

Parameters

dev	- The device structure.
pwr_mode	- Power mode. Example: 0 - standby mode. 1 - measure mode.

adxl362_set_range()

void adxl362_set_range	(	struct adxl362_dev *	dev,
		uint8_t	g_range )

Selects the measurement range.

Parameters

dev	- The device structure.
g_range	- Range option. Example: ADXL362_RANGE_2G - +-2 g ADXL362_RANGE_4G - +-4 g ADXL362_RANGE_8G - +-8 g

adxl362_set_register_value()

void adxl362_set_register_value	(	struct adxl362_dev *	dev,
		uint16_t	register_value,
		uint8_t	register_address,
		uint8_t	bytes_number )

Writes data into a register.

Parameters

dev	- The device structure.
register_value	- Data value to write.
register_address	- Address of the register.
bytes_number	- Number of bytes. Accepted values: 0 - 1.

adxl362_setup_activity_detection()

void adxl362_setup_activity_detection	(	struct adxl362_dev *	dev,
		uint8_t	ref_or_abs,
		uint16_t	threshold,
		uint8_t	time )

Configures activity detection.

Parameters

dev	- The device structure.
ref_or_abs	- Referenced/Absolute Activity Select. Example: 0 - absolute mode. 1 - referenced mode.
threshold	- 11-bit unsigned value that the adxl362 samples are compared to.
time	- 8-bit value written to the activity timer register. The amount of time (in seconds) is: time / ODR, where ODR - is the output data rate.

adxl362_setup_inactivity_detection()

void adxl362_setup_inactivity_detection	(	struct adxl362_dev *	dev,
		uint8_t	ref_or_abs,
		uint16_t	threshold,
		uint16_t	time )

Configures inactivity detection.

Parameters

dev	- The device structure.
ref_or_abs	- Referenced/Absolute Inactivity Select. Example: 0 - absolute mode. 1 - referenced mode.
threshold	- 11-bit unsigned value that the adxl362 samples are compared to.
time	- 16-bit value written to the inactivity timer register. The amount of time (in seconds) is: time / ODR, where ODR - is the output data rate.

adxl362_software_reset()

void adxl362_software_reset

(

struct adxl362_dev *

dev

)

Resets the device via SPI communication bus.

Parameters

dev	- The device structure.