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max31855_constants.h
Go to the documentation of this file.
1/*
2 * Copyright (C) 2024 HAW Hamburg
3 *
4 * This file is subject to the terms and conditions of the GNU Lesser
5 * General Public License v2.1. See the file LICENSE in the top level
6 * directory for more details.
7 */
8
19#ifndef MAX31855_CONSTANTS_H
20#define MAX31855_CONSTANTS_H
21
22#ifdef __cplusplus
23extern "C" {
24#endif
25
29#define MAX31855_DATA_SIZE (4)
30
34#define MAX31855_THERMOCOUPLE_SIGN_SHIFT (31)
35
39#define MAX31855_THERMOCOUPLE_SIGN_MASK (1UL << MAX31855_THERMOCOUPLE_SIGN_SHIFT)
40
44#define MAX31855_THERMOCOUPLE_INTEGER_SHIFT (20)
45
49#define MAX31855_THERMOCOUPLE_INTEGER_MASK (0x7FFUL << MAX31855_THERMOCOUPLE_INTEGER_SHIFT)
50
54#define MAX31855_THERMOCOUPLE_FRACTIONAL_HALF_SHIFT (19)
55
59#define MAX31855_THERMOCOUPLE_FRACTIONAL_HALF_MASK (1UL << MAX31855_THERMOCOUPLE_FRACTIONAL_HALF_SHIFT)
60
64#define MAX31855_THERMOCOUPLE_FRACTIONAL_QUARTER_SHIFT (18)
65
69#define MAX31855_THERMOCOUPLE_FRACTIONAL_QUARTER_MASK (1UL << MAX31855_THERMOCOUPLE_FRACTIONAL_QUARTER_SHIFT)
70
74#define MAX31855_INTERNAL_SIGN_SHIFT (15)
75
79#define MAX31855_INTERNAL_SIGN_MASK (1UL << MAX31855_INTERNAL_SIGN_SHIFT)
80
84#define MAX31855_INTERNAL_INTEGER_SHIFT (8)
85
89#define MAX31855_INTERNAL_INTEGER_MASK (0x7FUL << MAX31855_INTERNAL_INTEGER_SHIFT)
90
94#define MAX31855_INTERNAL_FRACTIONAL_HALF_SHIFT (7)
95
99#define MAX31855_INTERNAL_FRACTIONAL_HALF_MASK (1UL << MAX31855_INTERNAL_FRACTIONAL_HALF_SHIFT)
100
104#define MAX31855_INTERNAL_FRACTIONAL_QUARTER_SHIFT (6)
105
109#define MAX31855_INTERNAL_FRACTIONAL_QUARTER_MASK (1UL << MAX31855_INTERNAL_FRACTIONAL_QUARTER_SHIFT)
110
114#define MAX31855_INTERNAL_FRACTIONAL_EIGHTH_SHIFT (5)
115
119#define MAX31855_INTERNAL_FRACTIONAL_EIGHTH_MASK (1UL << MAX31855_INTERNAL_FRACTIONAL_EIGHTH_SHIFT)
120
124#define MAX31855_INTERNAL_FRACTIONAL_SIXTEENTH_SHIFT (4)
125
129#define MAX31855_INTERNAL_FRACTIONAL_SIXTEENTH_MASK (1UL << MAX31855_INTERNAL_FRACTIONAL_SIXTEENTH_SHIFT)
130
134#define MAX31855_FAULT_VCC_SHORT_SHIFT (2)
135
139#define MAX31855_FAULT_VCC_SHORT_MASK (1UL << MAX31855_FAULT_VCC_SHORT_SHIFT)
140
144#define MAX31855_FAULT_GND_SHORT_SHIFT (1)
145
149#define MAX31855_FAULT_GND_SHORT_MASK (1UL << MAX31855_FAULT_GND_SHORT_SHIFT)
150
154#define MAX31855_FAULT_OPEN_CIRCUIT_SHIFT (0)
155
159#define MAX31855_FAULT_OPEN_CIRCUIT_MASK (1UL << MAX31855_FAULT_OPEN_CIRCUIT_SHIFT)
160
164#define MAX31855_FAULT_MASK (MAX31855_FAULT_VCC_SHORT_MASK | \
165 MAX31855_FAULT_GND_SHORT_MASK | \
166 MAX31855_FAULT_OPEN_CIRCUIT_MASK)
167
168#ifdef __cplusplus
169}
170#endif
171
172#endif /* MAX31855_CONSTANTS_H */