max31855.c File Reference

Implementation of MAX31855 Driver. More...

#include <errno.h>
#include <stdlib.h>
#include <stdint.h>
#include "max31855.h"
#include "no_os_spi.h"
#include "no_os_util.h"
#include "no_os_alloc.h"

Include dependency graph for max31855.c:

Functions
int	max31855_init (struct max31855_dev **device, struct max31855_init_param *init_param)
	Device and comm init function.
int	max31855_remove (struct max31855_dev *device)
	Remove resources allocated by the init function.
int	max31855_read_raw (struct max31855_dev *device, uint32_t *val)
	Read raw register value.
int	max31855_read_temp (struct max31855_dev *device, struct max31855_decimal *thermocouple_temp, struct max31855_decimal *internal_temp)
	Read thermocouple and internal temperatures (converted in deg. C)

Detailed Description

Implementation of MAX31855 Driver.

Author

Ciprian Regus (cipri.nosp@m.an.r.nosp@m.egus@.nosp@m.anal.nosp@m.og.co.nosp@m.m)

Copyright 2022(c) Analog Devices, Inc.

SPDX-License-Identifier: BSD-3-Clause

Function Documentation

max31855_init()

int max31855_init	(	struct max31855_dev **	device,
		struct max31855_init_param *	init_param )

Device and comm init function.

Parameters

device	- MAX31855 descriptor to be initialized
init_param	- Init parameter for descriptor

Returns

0 in case of success, errno errors otherwise

max31855_read_raw()

int max31855_read_raw	(	struct max31855_dev *	device,
		uint32_t *	val )

Read raw register value.

Parameters

device	- MAX31855 descriptor
val	- register value

Returns

0 in case of success, negative error code otherwise

max31855_read_temp()

int max31855_read_temp	(	struct max31855_dev *	device,
		struct max31855_decimal *	thermocouple_temp,
		struct max31855_decimal *	internal_temp )

Read thermocouple and internal temperatures (converted in deg. C)

Parameters

device	- MAX31855 descriptor
thermocouple_temp	- thermocouple probe temperature (deg. C)
internal_temp	- board's temperature (used as reference)

Returns

0 in case of success, errno errors otherwise

max31855_remove()

int max31855_remove

(

struct max31855_dev *

device

)

Remove resources allocated by the init function.

Parameters

device

- MAX31855 descriptor

Returns

0 in case of success, errno errors otherwise