Header file for ada4250 Driver. More...

#include <stdint.h>
#include <math.h>
#include <stdbool.h>
#include "no_os_spi.h"
#include "no_os_gpio.h"
#include "no_os_util.h"

Include dependency graph for ada4250.h:

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Go to the source code of this file.

Classes
struct	ada4250_init_param
	ADA4250 Initialization Parameters structure. More...

struct	ada4250_dev
	ADA4250 Device Descriptor. More...

Macros
#define	ADA4250_REG_GAIN_MUX 0x00

#define	ADA4250_REG_REFBUF_EN 0x01

#define	ADA4250_REG_RESET 0x02

#define	ADA4250_REG_SNSR_CAL_VAL 0x04

#define	ADA4250_REG_SNSR_CAL_CNFG 0x05

#define	ADA4250_REG_DIE_REV 0x18

#define	ADA4250_REG_CHIP_ID1 0x19

#define	ADA4250_REG_CHIP_ID2 0x1a

#define	ADA4250_GAIN_MUX_MSK NO_OS_GENMASK(2, 0)

#define	ADA4250_GAIN_MUX(x) no_os_field_prep(ADA4250_GAIN_MUX_MSK, x)

#define	ADA4250_REFBUF_MSK NO_OS_BIT(0)

#define	ADA4250_REFBUF(x) no_os_field_prep(ADA4250_REFBUF_MSK, x)

#define	ADA4250_BUF_ENABLE 0x01

#define	ADA4250_BUF_DISABLE 0x00

#define	ADA4250_RESET_MSK NO_OS_BIT(0)

#define	ADA4250_RESET(x) no_os_field_prep(ADA4250_RESET_MSK, x)

#define	ADA4250_RESET_ENABLE 0x01

#define	ADA4250_RESET_DISABLE 0x00

#define	ADA4250_SNSR_CAL_VAL_MSK NO_OS_GENMASK(7, 0)

#define	ADA4250_SNSR_CAL_VAL(x) no_os_field_prep(ADA4250_SNSR_CAL_VAL_MSK, x)

#define	ADA4250_BIAS_SET_MSK NO_OS_GENMASK(3, 2)

#define	ADA4250_BIAS_SET(x) no_os_field_prep(ADA4250_BIAS_SET_MSK, x)

#define	ADA4250_RANGE_SET_MSK NO_OS_GENMASK(1, 0)

#define	ADA4250_RANGE_SET(x) no_os_field_prep(ADA4250_RANGE_SET_MSK, x)

#define	ADA4250_SPI_WRITE_CMD 0x0

#define	ADA4250_BUFF_SIZE_BYTES 2

#define	ADA4250_SPI_READ_CMD NO_OS_BIT(7)

#define	ADA4250_DIE_REV 0x0

#define	ADA4250_CHIP_ID 0x4250

#define	ADA4250_SPI_DUMMY_DATA 0x00

Enumerations
enum	ada4250_id { ADA4230, ADA4250 }
	Current bias settings. More...

enum	ada4250_bias { ADA4250_BIAS_DISABLE, ADA4250_BIAS_BANDGAP_REF, ADA4250_BIAS_AVDD }
	Current bias settings. More...

enum	ada4250_offset_range { ADA4250_RANGE1, ADA4250_RANGE2, ADA4250_RANGE3, ADA4250_RANGE4 }
	Sensor offset trim range. More...

enum	ada4250_gain { ADA4250_GAIN_1, ADA4250_GAIN_2, ADA4250_GAIN_4, ADA4250_GAIN_8, ADA4250_GAIN_16, ADA4250_GAIN_32, ADA4250_GAIN_64, ADA4250_GAIN_128 }
	Gain value. More...

enum	ada4250_bandwidth { ADA4250_BANDWIDTH_LOW, ADA4250_BANDWIDTH_HIGH }
	Bandwidth modes. More...

enum	ada4250_power_mode { ADA4250_POWER_NORMAL, ADA4250_POWER_SLEEP, ADA4250_POWER_SHUTDOWN }
	Power Modes. More...

Functions
int32_t	ada4250_write (struct ada4250_dev *dev, uint8_t reg_addr, uint8_t data)
	Writes data to ada4250 over SPI. More...

int32_t	ada4250_read (struct ada4250_dev dev, uint8_t reg_addr, uint8_t data)
	Reads data from ada4250 over SPI. More...

int32_t	ada4250_update (struct ada4250_dev *dev, uint8_t reg_addr, uint8_t mask, uint8_t data)
	Update ADA4250 register. More...

int32_t	ada4250_update_desc (struct ada4250_dev *dev)
	Update ADA4250 device descriptor. More...

int32_t	ada4250_soft_reset (struct ada4250_dev *dev)
	Software reset. More...

int32_t	ada4250_en_refbuf (struct ada4250_dev *dev, bool refbuf)
	Enable/Disable Reference Buffer. More...

int32_t	ada4250_set_bias (struct ada4250_dev *dev, enum ada4250_bias bias)
	Set current bias for ADA4250. More...

int32_t	ada4250_set_gain (struct ada4250_dev *dev, enum ada4250_gain gain)
	Set gain for ADA4250. More...

int32_t	ada4250_set_offset (struct ada4250_dev *dev, int64_t offset)
	Set offset value for ADA4250. More...

int32_t	ada4250_set_bandwidth (struct ada4250_dev *dev, enum ada4250_bandwidth bw)
	Set the bandwidth value for ADA4250. More...

int32_t	ada4250_set_slp_shtdwn_mode (struct ada4250_dev *dev, enum ada4250_power_mode pwrmode)
	Set the ADA4250 into sleep or shutdown mode. More...

int32_t	ada4250_set_normal_mode (struct ada4250_dev *dev, bool reconfig)
	Sets the ADA4250 into normal mode and reconfigures it according to the user input. More...

int32_t	ada4250_init (struct ada4250_dev *device, struct ada4250_init_param init_param)
	Initialize the ADA4250 device. More...

int32_t	ada4250_remove (struct ada4250_dev *dev)
	Free resoulces allocated for ADA4250. More...

Detailed Description

Header file for ada4250 Driver.

Author: Antoniu Miclaus (anton.nosp@m.iu.m.nosp@m.iclau.nosp@m.s@an.nosp@m.alog..nosp@m.com)

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
Neither the name of Analog Devices, Inc. nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES, INC. “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ANALOG DEVICES, INC. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Macro Definition Documentation

◆ ADA4250_BIAS_SET

#define ADA4250_BIAS_SET ( x ) no_os_field_prep(ADA4250_BIAS_SET_MSK, x)

◆ ADA4250_BIAS_SET_MSK

#define ADA4250_BIAS_SET_MSK NO_OS_GENMASK(3, 2)

◆ ADA4250_BUF_DISABLE

#define ADA4250_BUF_DISABLE 0x00

◆ ADA4250_BUF_ENABLE

#define ADA4250_BUF_ENABLE 0x01

◆ ADA4250_BUFF_SIZE_BYTES

#define ADA4250_BUFF_SIZE_BYTES 2

◆ ADA4250_CHIP_ID

#define ADA4250_CHIP_ID 0x4250

◆ ADA4250_DIE_REV

#define ADA4250_DIE_REV 0x0

◆ ADA4250_GAIN_MUX

#define ADA4250_GAIN_MUX ( x ) no_os_field_prep(ADA4250_GAIN_MUX_MSK, x)

◆ ADA4250_GAIN_MUX_MSK

#define ADA4250_GAIN_MUX_MSK NO_OS_GENMASK(2, 0)

◆ ADA4250_RANGE_SET

#define ADA4250_RANGE_SET ( x ) no_os_field_prep(ADA4250_RANGE_SET_MSK, x)

◆ ADA4250_RANGE_SET_MSK

#define ADA4250_RANGE_SET_MSK NO_OS_GENMASK(1, 0)

◆ ADA4250_REFBUF

#define ADA4250_REFBUF ( x ) no_os_field_prep(ADA4250_REFBUF_MSK, x)

◆ ADA4250_REFBUF_MSK

#define ADA4250_REFBUF_MSK NO_OS_BIT(0)

◆ ADA4250_REG_CHIP_ID1

#define ADA4250_REG_CHIP_ID1 0x19

◆ ADA4250_REG_CHIP_ID2

#define ADA4250_REG_CHIP_ID2 0x1a

◆ ADA4250_REG_DIE_REV

#define ADA4250_REG_DIE_REV 0x18

◆ ADA4250_REG_GAIN_MUX

#define ADA4250_REG_GAIN_MUX 0x00

◆ ADA4250_REG_REFBUF_EN

#define ADA4250_REG_REFBUF_EN 0x01

◆ ADA4250_REG_RESET

#define ADA4250_REG_RESET 0x02

◆ ADA4250_REG_SNSR_CAL_CNFG

#define ADA4250_REG_SNSR_CAL_CNFG 0x05

◆ ADA4250_REG_SNSR_CAL_VAL

#define ADA4250_REG_SNSR_CAL_VAL 0x04

◆ ADA4250_RESET

#define ADA4250_RESET ( x ) no_os_field_prep(ADA4250_RESET_MSK, x)

◆ ADA4250_RESET_DISABLE

#define ADA4250_RESET_DISABLE 0x00

◆ ADA4250_RESET_ENABLE

#define ADA4250_RESET_ENABLE 0x01

◆ ADA4250_RESET_MSK

#define ADA4250_RESET_MSK NO_OS_BIT(0)

◆ ADA4250_SNSR_CAL_VAL

#define ADA4250_SNSR_CAL_VAL ( x ) no_os_field_prep(ADA4250_SNSR_CAL_VAL_MSK, x)

◆ ADA4250_SNSR_CAL_VAL_MSK

#define ADA4250_SNSR_CAL_VAL_MSK NO_OS_GENMASK(7, 0)

◆ ADA4250_SPI_DUMMY_DATA

#define ADA4250_SPI_DUMMY_DATA 0x00

◆ ADA4250_SPI_READ_CMD

#define ADA4250_SPI_READ_CMD NO_OS_BIT(7)

◆ ADA4250_SPI_WRITE_CMD

#define ADA4250_SPI_WRITE_CMD 0x0

Enumeration Type Documentation

◆ ada4250_bandwidth

enum ada4250_bandwidth

Bandwidth modes.

Enumerator
ADA4250_BANDWIDTH_LOW
ADA4250_BANDWIDTH_HIGH

◆ ada4250_bias

enum ada4250_bias

Current bias settings.

Enumerator
ADA4250_BIAS_DISABLE
ADA4250_BIAS_BANDGAP_REF
ADA4250_BIAS_AVDD

◆ ada4250_gain

enum ada4250_gain

Gain value.

Enumerator
ADA4250_GAIN_1
ADA4250_GAIN_2
ADA4250_GAIN_4
ADA4250_GAIN_8
ADA4250_GAIN_16
ADA4250_GAIN_32
ADA4250_GAIN_64
ADA4250_GAIN_128

◆ ada4250_id

enum ada4250_id

Current bias settings.

Enumerator
ADA4230
ADA4250

◆ ada4250_offset_range

enum ada4250_offset_range

Sensor offset trim range.

Enumerator
ADA4250_RANGE1
ADA4250_RANGE2
ADA4250_RANGE3
ADA4250_RANGE4

◆ ada4250_power_mode

enum ada4250_power_mode

Power Modes.

Enumerator
ADA4250_POWER_NORMAL
ADA4250_POWER_SLEEP
ADA4250_POWER_SHUTDOWN

Function Documentation

◆ ada4250_en_refbuf()

int32_t ada4250_en_refbuf	(	struct ada4250_dev *	dev,
		bool	refbuf
	)

Enable/Disable Reference Buffer.

Parameters

dev	- The device structure.
refbuf	- REFBUF enable/disable.

Returns: Returns 0 in case of success or negative error code.

◆ ada4250_init()

int32_t ada4250_init	(	struct ada4250_dev **	device,
		struct ada4250_init_param *	init_param
	)

Initialize the ADA4250 device.

Parameters

device	- The device structure.
init_param	- The structure containing the device initial parameters.

Returns: Returns 0 in case of success or negative error code.

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◆ ada4250_read()

int32_t ada4250_read	(	struct ada4250_dev *	dev,
		uint8_t	reg_addr,
		uint8_t *	data
	)

Reads data from ada4250 over SPI.

ADA4250 SPI Read

Parameters

dev	- The device structure.
reg_addr	- The register address.
data	- Data read from the device.

Returns: Returns 0 in case of success or negative error code otherwise.

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◆ ada4250_remove()

int32_t ada4250_remove ( struct ada4250_dev * dev )

Free resoulces allocated for ADA4250.

ADA4250 Resources Deallocation

Parameters

dev	- The device structure.

Returns: Returns 0 in case of success or negative error code.

◆ ada4250_set_bandwidth()

int32_t ada4250_set_bandwidth	(	struct ada4250_dev *	dev,
		enum ada4250_bandwidth	bw
	)

Set the bandwidth value for ADA4250.

Parameters

dev	- The device structure.
bw	- Bandwidth value.

Returns: Returns 0 in case of success or negative error code.

◆ ada4250_set_bias()

int32_t ada4250_set_bias	(	struct ada4250_dev *	dev,
		enum ada4250_bias	bias
	)

Set current bias for ADA4250.

Parameters

dev	- The device structure.
bias	- Current bias option.

Returns: Returns 0 in case of success or negative error code.

◆ ada4250_set_gain()

int32_t ada4250_set_gain	(	struct ada4250_dev *	dev,
		enum ada4250_gain	gain
	)

Set gain for ADA4250.

Parameters

dev	- The device structure.
gain	- Gain Value.

Returns: Returns 0 in case of success or negative error code.

◆ ada4250_set_normal_mode()

int32_t ada4250_set_normal_mode	(	struct ada4250_dev *	dev,
		bool	reconfig
	)

Sets the ADA4250 into normal mode and reconfigures it according to the user input.

Parameters

dev	- The device structure.
reconfig	- Reconfiguration enable/disable.

Returns: Returns 0 in case of success or negative error code.

◆ ada4250_set_offset()

int32_t ada4250_set_offset	(	struct ada4250_dev *	dev,
		int64_t	offset
	)

Set offset value for ADA4250.

Parameters

dev	- The device structure.
offset	- Offset Value in nV.

Returns: Returns 0 in case of success or negative error code.

◆ ada4250_set_slp_shtdwn_mode()

int32_t ada4250_set_slp_shtdwn_mode	(	struct ada4250_dev *	dev,
		enum ada4250_power_mode	pwrmode
	)

Set the ADA4250 into sleep or shutdown mode.

Parameters

dev	- The device structure.
pwrmode	- Power mode option.

Returns: Returns 0 in case of success or negative error code.

◆ ada4250_soft_reset()

int32_t ada4250_soft_reset ( struct ada4250_dev * dev )

Software reset.

Parameters

dev	- The device structure.

Returns: Returns 0 in case of success or negative error code.

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◆ ada4250_update()

int32_t ada4250_update	(	struct ada4250_dev *	dev,
		uint8_t	reg_addr,
		uint8_t	mask,
		uint8_t	data
	)

Update ADA4250 register.

Parameters

dev	- The device structure.
reg_addr	- The register address.
mask	- Mask for specific register bits to be updated.
data	- Data read from the device.

Returns: Returns 0 in case of success or negative error code otherwise.

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◆ ada4250_update_desc()

int32_t ada4250_update_desc ( struct ada4250_dev * dev )

Update ADA4250 device descriptor.

Parameters

dev	- The device structure.

Returns: Returns 0 in case of success or negative error code otherwise.

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◆ ada4250_write()

int32_t ada4250_write	(	struct ada4250_dev *	dev,
		uint8_t	reg_addr,
		uint8_t	data
	)

Writes data to ada4250 over SPI.

ADA4250 SPI write

Parameters

dev	- The device structure.
reg_addr	- The register address.
data	- Data value to write.

Returns: Returns 0 in case of success or negative error code otherwise.

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Classes

Macros

Enumerations

Functions

Detailed Description

Macro Definition Documentation

◆ ADA4250_BIAS_SET

◆ ADA4250_BIAS_SET_MSK

◆ ADA4250_BUF_DISABLE

◆ ADA4250_BUF_ENABLE

◆ ADA4250_BUFF_SIZE_BYTES

◆ ADA4250_CHIP_ID

◆ ADA4250_DIE_REV

◆ ADA4250_GAIN_MUX

◆ ADA4250_GAIN_MUX_MSK

◆ ADA4250_RANGE_SET

◆ ADA4250_RANGE_SET_MSK

◆ ADA4250_REFBUF

◆ ADA4250_REFBUF_MSK

◆ ADA4250_REG_CHIP_ID1

◆ ADA4250_REG_CHIP_ID2

◆ ADA4250_REG_DIE_REV

◆ ADA4250_REG_GAIN_MUX

◆ ADA4250_REG_REFBUF_EN

◆ ADA4250_REG_RESET

◆ ADA4250_REG_SNSR_CAL_CNFG

◆ ADA4250_REG_SNSR_CAL_VAL

◆ ADA4250_RESET

◆ ADA4250_RESET_DISABLE

◆ ADA4250_RESET_ENABLE

◆ ADA4250_RESET_MSK

◆ ADA4250_SNSR_CAL_VAL

◆ ADA4250_SNSR_CAL_VAL_MSK

◆ ADA4250_SPI_DUMMY_DATA

◆ ADA4250_SPI_READ_CMD

◆ ADA4250_SPI_WRITE_CMD

Enumeration Type Documentation

◆ ada4250_bandwidth

◆ ada4250_bias

◆ ada4250_gain

◆ ada4250_id

◆ ada4250_offset_range

◆ ada4250_power_mode

Function Documentation

◆ ada4250_en_refbuf()

◆ ada4250_init()

◆ ada4250_read()

◆ ada4250_remove()

◆ ada4250_set_bandwidth()

◆ ada4250_set_bias()

◆ ada4250_set_gain()

◆ ada4250_set_normal_mode()

◆ ada4250_set_offset()

◆ ada4250_set_slp_shtdwn_mode()

◆ ada4250_soft_reset()

◆ ada4250_update()

◆ ada4250_update_desc()

◆ ada4250_write()