driver max31865 source file More...

#include "driver_max31865.h"

Include dependency graph for driver_max31865.c:

Macros
#define	CHIP_NAME "Maxim Integrated MAX31865"
	chip information definition
#define	MANUFACTURER_NAME "Maxim Integrated"
#define	SUPPLY_VOLTAGE_MIN 3.0f
#define	SUPPLY_VOLTAGE_MAX 3.6f
#define	MAX_CURRENT 5.75f
#define	TEMPERATURE_MIN -40.0f
#define	TEMPERATURE_MAX 85.0f
#define	DRIVER_VERSION 2000
#define	MAX31865_REG_CONFIG 0x00
	chip register definition
#define	MAX31865_REG_RTD_MSB 0x01
#define	MAX31865_REG_RTD_LSB 0x02
#define	MAX31865_REG_HIGH_FAULT_MSB 0x03
#define	MAX31865_REG_HIGH_FAULT_LSB 0x04
#define	MAX31865_REG_LOW_FAULT_MSB 0x05
#define	MAX31865_REG_LOW_FAULT_LSB 0x06
#define	MAX31865_REG_FAULT_STATUS 0x07
#define	WRITE_ADDRESS_MASK 0x80
	calculate definition
#define	RTD_A 3.9083e-3f
#define	RTD_B -5.775e-7f

Functions
uint8_t	max31865_init (max31865_handle_t *handle)
	initialize the chip
uint8_t	max31865_deinit (max31865_handle_t *handle)
	close the chip
uint8_t	max31865_set_filter_select (max31865_handle_t *handle, max31865_filter_select_t filter)
	set the filter type
uint8_t	max31865_get_filter_select (max31865_handle_t handle, max31865_filter_select_t filter)
	get the filter type
uint8_t	max31865_set_wire (max31865_handle_t *handle, max31865_wire_t wire)
	set the pt resistor wire
uint8_t	max31865_get_wire (max31865_handle_t handle, max31865_wire_t wire)
	get the pt resistor wire
uint8_t	max31865_set_reference_resistor (max31865_handle_t *handle, float value)
	set the reference resistor
uint8_t	max31865_get_reference_resistor (max31865_handle_t handle, float value)
	get the reference resistor
uint8_t	max31865_set_resistor (max31865_handle_t *handle, max31865_resistor_t resistor)
	set the pt resistor
uint8_t	max31865_get_resistor (max31865_handle_t handle, max31865_resistor_t resistor)
	get the pt resistor
uint8_t	max31865_set_vbias (max31865_handle_t *handle, max31865_bool_t enable)
	set the chip vbias
uint8_t	max31865_get_vbias (max31865_handle_t handle, max31865_bool_t enable)
	get the chip vbias
uint8_t	max31865_clear_fault_status (max31865_handle_t *handle)
	clear all fault status
uint8_t	max31865_get_fault_status (max31865_handle_t handle, uint8_t status)
	get the fault status
uint8_t	max31865_set_high_fault_threshold (max31865_handle_t *handle, uint16_t threshold)
	set the high fault threshold
uint8_t	max31865_get_high_fault_threshold (max31865_handle_t handle, uint16_t threshold)
	get the high fault threshold
uint8_t	max31865_set_low_fault_threshold (max31865_handle_t *handle, uint16_t threshold)
	set the low fault threshold
uint8_t	max31865_get_low_fault_threshold (max31865_handle_t handle, uint16_t threshold)
	get the low fault threshold
uint8_t	max31865_set_fault_detection_cycle_control (max31865_handle_t *handle, max31865_fault_detection_cycle_control_t control)
	set the fault detection cycle control
uint8_t	max31865_get_fault_detection_cycle_control (max31865_handle_t handle, max31865_fault_detection_cycle_control_status_t status)
	get the fault detection cycle control
uint8_t	max31865_single_read (max31865_handle_t handle, uint16_t raw, float *temp)
	read data once
uint8_t	max31865_start_continuous_read (max31865_handle_t *handle)
	start reading
uint8_t	max31865_stop_continuous_read (max31865_handle_t *handle)
	stop reading
uint8_t	max31865_continuous_read (max31865_handle_t handle, uint16_t raw, float *temp)
	read data continuously
uint8_t	max31865_set_reg (max31865_handle_t *handle, uint8_t reg, uint8_t value)
	set the chip register
uint8_t	max31865_get_reg (max31865_handle_t handle, uint8_t reg, uint8_t value)
	get the chip register
uint8_t	max31865_info (max31865_info_t *info)
	get chip's information

Detailed Description

driver max31865 source file

The MIT License (MIT)

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Version: 2.0.0

Author: Shifeng Li

Date: 2021-02-22

history

Date	Version	Author	Description
2021/02/22	2.0	Shifeng Li	format the code
2020/10/17	1.0	Shifeng Li	first upload

Definition in file driver_max31865.c.

Macro Definition Documentation

◆ CHIP_NAME

#define CHIP_NAME "Maxim Integrated MAX31865"

chip information definition

chip name

Definition at line 43 of file driver_max31865.c.

◆ DRIVER_VERSION

#define DRIVER_VERSION 2000

driver version

Definition at line 50 of file driver_max31865.c.

◆ MANUFACTURER_NAME

#define MANUFACTURER_NAME "Maxim Integrated"

manufacturer name

Definition at line 44 of file driver_max31865.c.

◆ MAX31865_REG_CONFIG

#define MAX31865_REG_CONFIG 0x00

chip register definition

config register

Definition at line 55 of file driver_max31865.c.

◆ MAX31865_REG_FAULT_STATUS

#define MAX31865_REG_FAULT_STATUS 0x07

fault status register

Definition at line 62 of file driver_max31865.c.

◆ MAX31865_REG_HIGH_FAULT_LSB

#define MAX31865_REG_HIGH_FAULT_LSB 0x04

high fault lsb register

Definition at line 59 of file driver_max31865.c.

◆ MAX31865_REG_HIGH_FAULT_MSB

#define MAX31865_REG_HIGH_FAULT_MSB 0x03

high fault msb register

Definition at line 58 of file driver_max31865.c.

◆ MAX31865_REG_LOW_FAULT_LSB

#define MAX31865_REG_LOW_FAULT_LSB 0x06

low fault lsb register

Definition at line 61 of file driver_max31865.c.

◆ MAX31865_REG_LOW_FAULT_MSB

#define MAX31865_REG_LOW_FAULT_MSB 0x05

low fault msb register

Definition at line 60 of file driver_max31865.c.

◆ MAX31865_REG_RTD_LSB

#define MAX31865_REG_RTD_LSB 0x02

rtd lsb register

Definition at line 57 of file driver_max31865.c.

◆ MAX31865_REG_RTD_MSB

#define MAX31865_REG_RTD_MSB 0x01

rtd msb register

Definition at line 56 of file driver_max31865.c.

◆ MAX_CURRENT

#define MAX_CURRENT 5.75f

chip max current

Definition at line 47 of file driver_max31865.c.

◆ RTD_A

#define RTD_A 3.9083e-3f

rtd a

Definition at line 68 of file driver_max31865.c.

◆ RTD_B

#define RTD_B -5.775e-7f

rtd b

Definition at line 69 of file driver_max31865.c.

◆ SUPPLY_VOLTAGE_MAX

#define SUPPLY_VOLTAGE_MAX 3.6f

chip max supply voltage

Definition at line 46 of file driver_max31865.c.

◆ SUPPLY_VOLTAGE_MIN

#define SUPPLY_VOLTAGE_MIN 3.0f

chip min supply voltage

Definition at line 45 of file driver_max31865.c.

◆ TEMPERATURE_MAX

#define TEMPERATURE_MAX 85.0f

chip max operating temperature

Definition at line 49 of file driver_max31865.c.

◆ TEMPERATURE_MIN

#define TEMPERATURE_MIN -40.0f

chip min operating temperature

Definition at line 48 of file driver_max31865.c.

◆ WRITE_ADDRESS_MASK

#define WRITE_ADDRESS_MASK 0x80

calculate definition

spi write mask

Definition at line 67 of file driver_max31865.c.

Macros

Functions