Header file of ADT7420 Driver. More...

#include "no_os_spi.h"
#include "no_os_i2c.h"
#include "no_os_util.h"
#include <stdbool.h>

Include dependency graph for adt7420.h:

This graph shows which files directly or indirectly include this file:

Classes
struct	adt7420_chip_info

struct	adt7420_dev

struct	adt7420_init_param

union	adt7420_init_param::interface_type

Macros
#define	ADT7420_A0_PIN(x) (((x) & 0x1) << 0)

#define	ADT7420_A1_PIN(x) (((x) & 0x1) << 1)

#define	ADT7420_ADDRESS(x, y) (0x48 + ADT7420_A1_PIN(x) + ADT7420_A0_PIN(y))

#define	ADT7320_L16 NO_OS_BIT(8)

#define	ADT7320_ADDR_MSK NO_OS_GENMASK(7,0)

#define	ADT7320_REG_STATUS 0x00

#define	ADT7320_REG_CONFIG 0x01

#define	ADT7320_REG_TEMP (ADT7320_L16 \| 0x02)

#define	ADT7320_REG_ID 0x03

#define	ADT7320_REG_T_CRIT (ADT7320_L16 \| 0x04)

#define	ADT7320_REG_HIST 0x05

#define	ADT7320_REG_T_HIGH (ADT7320_L16 \| 0x06)

#define	ADT7320_REG_T_LOW (ADT7320_L16 \| 0x07)

#define	ADT7320_WRITE_MASK_CMD 0b00111000

#define	ADT7320_READ_CMD 0b01000000

#define	ADT7420_REG_TEMP_MSB (ADT7320_L16 \|0x00)

#define	ADT7420_REG_TEMP_LSB 0x01

#define	ADT7420_REG_STATUS 0x02

#define	ADT7420_REG_CONFIG 0x03

#define	ADT7420_REG_T_HIGH_MSB (ADT7320_L16 \|0x04 )

#define	ADT7420_REG_T_HIGH_LSB 0x05

#define	ADT7420_REG_T_LOW_MSB (ADT7320_L16 \|0x06)

#define	ADT7420_REG_T_LOW_LSB 0x07

#define	ADT7420_REG_T_CRIT_MSB (ADT7320_L16 \|0x08)

#define	ADT7420_REG_T_CRIT_LSB 0x09

#define	ADT7420_REG_HIST 0x0A

#define	ADT7420_REG_ID 0x0B

#define	ADT7420_REG_RESET 0x2F

#define	ADT7420_STATUS_T_LOW NO_OS_BIT(4)

#define	ADT7420_STATUS_T_HIGH NO_OS_BIT(5)

#define	ADT7420_STATUS_T_CRIT NO_OS_BIT(6)

#define	ADT7420_STATUS_RDY NO_OS_BIT(7)

#define	ADT7420_CONFIG_OP_MODE(x) ((x) << 5) & (NO_OS_GENMASK(6,5))

#define	ADT7420_CONFIG_RESOLUTION NO_OS_BIT(7)

#define	ADT7420_16BIT_NEG NO_OS_BIT(16)

#define	ADT7420_16BIT_SIGN 0x8000

#define	ADT7420_16BIT_DIV 128

#define	ADT7420_13BIT_NEG NO_OS_BIT(13)

#define	ADT7420_13BIT_SIGN 0x1000

#define	ADT7420_13BIT_DIV 16

#define	ADT7420_OP_MODE_CONT_CONV 0

#define	ADT7420_OP_MODE_ONE_SHOT 1

#define	ADT7420_OP_MODE_1_SPS 2

#define	ADT7420_OP_MODE_SHUTDOWN 3

#define	ADT7xxx_ID 0xC

#define	ADT7420_RESET_DELAY 1

Enumerations
enum	dev_interface { SPI, I2C }

enum	adt7420_type { ID_ADT7410, ID_ADT7420, ID_ADT7422, ID_ADT7310, ID_ADT7311, ID_ADT7312, ID_ADT7320 }

Functions
int	adt7420_reg_read (struct adt7420_dev dev, uint16_t register_address, uint16_t data)
	Reads the value of a register. More...

int	adt7420_reg_update_bits (struct adt7420_dev *dev, uint16_t register_address, uint8_t mask, uint8_t value)
	Sets the value of a register SPI/I2C. More...

int	adt7420_spi_reg_write (struct adt7420_dev *dev, uint16_t register_address, uint32_t data)
	Write a value of a register via SPI. More...

int	adt7420_i2c_reg_write (struct adt7420_dev *dev, uint16_t register_address, uint32_t data)
	Write a value of a register via I2C. More...

int	adt7420_reg_write (struct adt7420_dev *dev, uint16_t register_address, uint32_t data)
	Sets the value of a register SPI/I2C. More...

int32_t	adt7420_init (struct adt7420_dev **device, struct adt7420_init_param init_param)
	Initializes the communication peripheral and checks if the device is present. More...

int32_t	adt7420_remove (struct adt7420_dev *dev)
	Free the resources allocated by adt7420_init(). More...

int	adt7420_set_operation_mode (struct adt7420_dev *dev, uint8_t mode)
	Sets the operational mode for ADT7420/ADT7320. More...

int	adt7420_set_resolution (struct adt7420_dev *dev, uint8_t resolution)
	Sets the resolution for ADT7420/ADT7320. More...

int32_t	adt7420_reset (struct adt7420_dev *dev)
	Resets the SPI or I2C inteface for the ADT7420/ADT7320. More...

float	adt7420_get_temperature (struct adt7420_dev *dev)
	Reads the temperature data and converts it to Celsius degrees. More...

int	adt7420_i2c_reg_read (struct adt7420_dev dev, uint16_t register_address, uint16_t data)
	Reads the value of a register I2C interface device. More...

int	adt7420_spi_reg_read (struct adt7420_dev dev, uint16_t register_address, uint16_t data)
	Reads the value of a register SPI interface device. More...

bool	adt7420_is_spi (struct adt7420_dev *dev)
	Check if the interface of the selected device is SPI. More...

Variables
const struct adt7420_chip_info	chip_info []

Detailed Description

Header file of ADT7420 Driver.

Author: DBogdan (drago.nosp@m.s.bo.nosp@m.gdan@.nosp@m.anal.nosp@m.og.co.nosp@m.m)

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

◆ ADT7320_ADDR_MSK

#define ADT7320_ADDR_MSK NO_OS_GENMASK(7,0)

◆ ADT7320_L16

#define ADT7320_L16 NO_OS_BIT(8)

◆ ADT7320_READ_CMD

#define ADT7320_READ_CMD 0b01000000

◆ ADT7320_REG_CONFIG

#define ADT7320_REG_CONFIG 0x01

◆ ADT7320_REG_HIST

#define ADT7320_REG_HIST 0x05

◆ ADT7320_REG_ID

#define ADT7320_REG_ID 0x03

◆ ADT7320_REG_STATUS

#define ADT7320_REG_STATUS 0x00

◆ ADT7320_REG_T_CRIT

#define ADT7320_REG_T_CRIT (ADT7320_L16 | 0x04)

◆ ADT7320_REG_T_HIGH

#define ADT7320_REG_T_HIGH (ADT7320_L16 | 0x06)

◆ ADT7320_REG_T_LOW

#define ADT7320_REG_T_LOW (ADT7320_L16 | 0x07)

◆ ADT7320_REG_TEMP

#define ADT7320_REG_TEMP (ADT7320_L16 | 0x02)

◆ ADT7320_WRITE_MASK_CMD

#define ADT7320_WRITE_MASK_CMD 0b00111000

◆ ADT7420_13BIT_DIV

#define ADT7420_13BIT_DIV 16

◆ ADT7420_13BIT_NEG

#define ADT7420_13BIT_NEG NO_OS_BIT(13)

◆ ADT7420_13BIT_SIGN

#define ADT7420_13BIT_SIGN 0x1000

◆ ADT7420_16BIT_DIV

#define ADT7420_16BIT_DIV 128

◆ ADT7420_16BIT_NEG

#define ADT7420_16BIT_NEG NO_OS_BIT(16)

◆ ADT7420_16BIT_SIGN

#define ADT7420_16BIT_SIGN 0x8000

◆ ADT7420_A0_PIN

#define ADT7420_A0_PIN ( x ) (((x) & 0x1) << 0)

◆ ADT7420_A1_PIN

#define ADT7420_A1_PIN ( x ) (((x) & 0x1) << 1)

◆ ADT7420_ADDRESS

#define ADT7420_ADDRESS	(	x,
		y
	)	(0x48 + ADT7420_A1_PIN(x) + ADT7420_A0_PIN(y))

◆ ADT7420_CONFIG_OP_MODE

#define ADT7420_CONFIG_OP_MODE ( x ) ((x) << 5) & (NO_OS_GENMASK(6,5))

◆ ADT7420_CONFIG_RESOLUTION

#define ADT7420_CONFIG_RESOLUTION NO_OS_BIT(7)

◆ ADT7420_OP_MODE_1_SPS

#define ADT7420_OP_MODE_1_SPS 2

◆ ADT7420_OP_MODE_CONT_CONV

#define ADT7420_OP_MODE_CONT_CONV 0

◆ ADT7420_OP_MODE_ONE_SHOT

#define ADT7420_OP_MODE_ONE_SHOT 1

◆ ADT7420_OP_MODE_SHUTDOWN

#define ADT7420_OP_MODE_SHUTDOWN 3

◆ ADT7420_REG_CONFIG

#define ADT7420_REG_CONFIG 0x03

◆ ADT7420_REG_HIST

#define ADT7420_REG_HIST 0x0A

◆ ADT7420_REG_ID

#define ADT7420_REG_ID 0x0B

◆ ADT7420_REG_RESET

#define ADT7420_REG_RESET 0x2F

◆ ADT7420_REG_STATUS

#define ADT7420_REG_STATUS 0x02

◆ ADT7420_REG_T_CRIT_LSB

#define ADT7420_REG_T_CRIT_LSB 0x09

◆ ADT7420_REG_T_CRIT_MSB

#define ADT7420_REG_T_CRIT_MSB (ADT7320_L16 |0x08)

◆ ADT7420_REG_T_HIGH_LSB

#define ADT7420_REG_T_HIGH_LSB 0x05

◆ ADT7420_REG_T_HIGH_MSB

#define ADT7420_REG_T_HIGH_MSB (ADT7320_L16 |0x04 )

◆ ADT7420_REG_T_LOW_LSB

#define ADT7420_REG_T_LOW_LSB 0x07

◆ ADT7420_REG_T_LOW_MSB

#define ADT7420_REG_T_LOW_MSB (ADT7320_L16 |0x06)

◆ ADT7420_REG_TEMP_LSB

#define ADT7420_REG_TEMP_LSB 0x01

◆ ADT7420_REG_TEMP_MSB

#define ADT7420_REG_TEMP_MSB (ADT7320_L16 |0x00)

◆ ADT7420_RESET_DELAY

#define ADT7420_RESET_DELAY 1

◆ ADT7420_STATUS_RDY

#define ADT7420_STATUS_RDY NO_OS_BIT(7)

◆ ADT7420_STATUS_T_CRIT

#define ADT7420_STATUS_T_CRIT NO_OS_BIT(6)

◆ ADT7420_STATUS_T_HIGH

#define ADT7420_STATUS_T_HIGH NO_OS_BIT(5)

◆ ADT7420_STATUS_T_LOW

#define ADT7420_STATUS_T_LOW NO_OS_BIT(4)

◆ ADT7xxx_ID

#define ADT7xxx_ID 0xC

Enumeration Type Documentation

◆ adt7420_type

enum adt7420_type

Enumerator
ID_ADT7410
ID_ADT7420
ID_ADT7422
ID_ADT7310
ID_ADT7311
ID_ADT7312
ID_ADT7320

◆ dev_interface

enum dev_interface

Enumerator
SPI
I2C

Function Documentation

◆ adt7420_get_temperature()

float adt7420_get_temperature ( struct adt7420_dev * dev )

Reads the temperature data and converts it to Celsius degrees.

Parameters

dev	- The device structure.

Returns: temperature - Temperature in degrees Celsius.

Negative temperature

Positive temperature

Negative temperature

Positive temperature

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◆ adt7420_i2c_reg_read()

int adt7420_i2c_reg_read	(	struct adt7420_dev *	dev,
		uint16_t	register_address,
		uint16_t *	data
	)

Reads the value of a register I2C interface device.

Read the register value for I2C interface devices

Parameters

dev	- The device structure.
register_address	- Address of the register.
data	- Pointer to the register value

Returns: register_value - Value of the register.

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◆ adt7420_i2c_reg_write()

int adt7420_i2c_reg_write	(	struct adt7420_dev *	dev,
		uint16_t	register_address,
		uint32_t	data
	)

Write a value of a register via I2C.

Parameters

dev	- The device structure.
register_address	- Address of the register.
data	- Pointer to the register value

Returns: 0 in case of success, -1 otherwise.

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◆ adt7420_init()

int32_t adt7420_init	(	struct adt7420_dev **	device,
		struct adt7420_init_param	init_param
	)

Initializes the communication peripheral and checks if the device is present.

Initializes the comm. peripheral and checks if the device is present.

Parameters

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

Returns: status - The result of the initialization procedure. Example: -1 - I2C peripheral was not initialized or the device is not present. 0 - I2C peripheral was initialized and the device is present.

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◆ adt7420_is_spi()

bool adt7420_is_spi ( struct adt7420_dev * dev )

Check if the interface of the selected device is SPI.

Check if the interface of the selected device is SPI

Parameters

dev	- The device structure.

Returns: True in case of an SPI interface, False Otherwise

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◆ adt7420_reg_read()

int adt7420_reg_read	(	struct adt7420_dev *	dev,
		uint16_t	register_address,
		uint16_t *	data
	)

Reads the value of a register.

Reads the value of a register

Parameters

dev	- The device structure.
register_address	- Address of the register.
data	- Pointer to the register value

Returns: register_value - Value of the register.

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◆ adt7420_reg_update_bits()

int adt7420_reg_update_bits	(	struct adt7420_dev *	dev,
		uint16_t	register_address,
		uint8_t	mask,
		uint8_t	value
	)

Sets the value of a register SPI/I2C.

Parameters

dev	- The device structure.
register_address	- Address of the register.
mask	- Bit Mask of the bit to be written
value	- Value of the bit

Returns: 0 in case of success, -1 otherwise.

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◆ adt7420_reg_write()

int adt7420_reg_write	(	struct adt7420_dev *	dev,
		uint16_t	register_address,
		uint32_t	data
	)

Sets the value of a register SPI/I2C.

Parameters

dev	- The device structure.
register_address	- Address of the register.
data	- Data to be written in input register.

Returns: 0 in case of success, -1 otherwise.

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◆ adt7420_remove()

int32_t adt7420_remove ( struct adt7420_dev * dev )

Free the resources allocated by adt7420_init().

Parameters

dev	- The device structure.

Returns: ret - The result of the remove procedure.

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◆ adt7420_reset()

int32_t adt7420_reset ( struct adt7420_dev * dev )

Resets the SPI or I2C inteface for the ADT7420/ADT7320.

Resets the SPI or I2C inteface for the ADT7420/ADT7320

Parameters

dev	- The device structure.

Returns: 0 in case of Success, -1 otherwise.

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◆ adt7420_set_operation_mode()

int adt7420_set_operation_mode	(	struct adt7420_dev *	dev,
		uint8_t	mode
	)

Sets the operational mode for ADT7420/ADT7320.

Sets the operational mode for ADT7420.

Parameters

dev	- The device structure.
mode	- Operation mode. Example: ADT7420_OP_MODE_CONT_CONV - continuous conversion; ADT7420_OP_MODE_ONE_SHOT - one shot; ADT7420_OP_MODE_1_SPS - 1 SPS mode; ADT7420_OP_MODE_SHUTDOWN - shutdown.

Returns: None.

◆ adt7420_set_resolution()

int adt7420_set_resolution	(	struct adt7420_dev *	dev,
		uint8_t	resolution
	)

Sets the resolution for ADT7420/ADT7320.

Sets the resolution for ADT7420.

Parameters

dev	- The device structure.
resolution	- Resolution. Example: 0 - 13-bit resolution; 1 - 16-bit resolution.

Returns: None.

◆ adt7420_spi_reg_read()

int adt7420_spi_reg_read	(	struct adt7420_dev *	dev,
		uint16_t	register_address,
		uint16_t *	data
	)

Reads the value of a register SPI interface device.

Read the register value for SPI interface devices

Parameters

dev	- The device structure.
register_address	- Address of the register.
data	- Pointer to the register value

Returns: register_value - Value of the register.

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◆ adt7420_spi_reg_write()

int adt7420_spi_reg_write	(	struct adt7420_dev *	dev,
		uint16_t	register_address,
		uint32_t	data
	)

Write a value of a register via SPI.

Parameters

dev	- The device structure.
register_address	- Address of the register.
data	- Pointer to the register value

Returns: 0 in case of success, -1 otherwise.

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Variable Documentation

◆ chip_info

const struct adt7420_chip_info chip_info[]

Classes

Macros

Enumerations

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ ADT7320_ADDR_MSK

◆ ADT7320_L16

◆ ADT7320_READ_CMD

◆ ADT7320_REG_CONFIG

◆ ADT7320_REG_HIST

◆ ADT7320_REG_ID

◆ ADT7320_REG_STATUS

◆ ADT7320_REG_T_CRIT

◆ ADT7320_REG_T_HIGH

◆ ADT7320_REG_T_LOW

◆ ADT7320_REG_TEMP

◆ ADT7320_WRITE_MASK_CMD

◆ ADT7420_13BIT_DIV

◆ ADT7420_13BIT_NEG

◆ ADT7420_13BIT_SIGN

◆ ADT7420_16BIT_DIV

◆ ADT7420_16BIT_NEG

◆ ADT7420_16BIT_SIGN

◆ ADT7420_A0_PIN

◆ ADT7420_A1_PIN

◆ ADT7420_ADDRESS

◆ ADT7420_CONFIG_OP_MODE

◆ ADT7420_CONFIG_RESOLUTION

◆ ADT7420_OP_MODE_1_SPS

◆ ADT7420_OP_MODE_CONT_CONV

◆ ADT7420_OP_MODE_ONE_SHOT

◆ ADT7420_OP_MODE_SHUTDOWN

◆ ADT7420_REG_CONFIG

◆ ADT7420_REG_HIST

◆ ADT7420_REG_ID

◆ ADT7420_REG_RESET

◆ ADT7420_REG_STATUS

◆ ADT7420_REG_T_CRIT_LSB

◆ ADT7420_REG_T_CRIT_MSB

◆ ADT7420_REG_T_HIGH_LSB

◆ ADT7420_REG_T_HIGH_MSB

◆ ADT7420_REG_T_LOW_LSB

◆ ADT7420_REG_T_LOW_MSB

◆ ADT7420_REG_TEMP_LSB

◆ ADT7420_REG_TEMP_MSB

◆ ADT7420_RESET_DELAY

◆ ADT7420_STATUS_RDY

◆ ADT7420_STATUS_T_CRIT

◆ ADT7420_STATUS_T_HIGH

◆ ADT7420_STATUS_T_LOW

◆ ADT7xxx_ID

Enumeration Type Documentation

◆ adt7420_type

◆ dev_interface

Function Documentation

◆ adt7420_get_temperature()

◆ adt7420_i2c_reg_read()

◆ adt7420_i2c_reg_write()

◆ adt7420_init()

◆ adt7420_is_spi()

◆ adt7420_reg_read()

◆ adt7420_reg_update_bits()

◆ adt7420_reg_write()

◆ adt7420_remove()

◆ adt7420_reset()

◆ adt7420_set_operation_mode()

◆ adt7420_set_resolution()

◆ adt7420_spi_reg_read()

◆ adt7420_spi_reg_write()

Variable Documentation

◆ chip_info