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max31855_constants.h
Go to the documentation of this file.
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/*
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* Copyright (C) 2024 HAW Hamburg
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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#ifndef MAX31855_CONSTANTS_H
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#define MAX31855_CONSTANTS_H
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#ifdef __cplusplus
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extern
"C"
{
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#endif
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#define MAX31855_DATA_SIZE (4)
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#define MAX31855_THERMOCOUPLE_SIGN_SHIFT (31)
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#define MAX31855_THERMOCOUPLE_SIGN_MASK (1UL << MAX31855_THERMOCOUPLE_SIGN_SHIFT)
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#define MAX31855_THERMOCOUPLE_INTEGER_SHIFT (20)
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#define MAX31855_THERMOCOUPLE_INTEGER_MASK (0x7FFUL << MAX31855_THERMOCOUPLE_INTEGER_SHIFT)
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#define MAX31855_THERMOCOUPLE_FRACTIONAL_HALF_SHIFT (19)
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#define MAX31855_THERMOCOUPLE_FRACTIONAL_HALF_MASK (1UL << MAX31855_THERMOCOUPLE_FRACTIONAL_HALF_SHIFT)
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#define MAX31855_THERMOCOUPLE_FRACTIONAL_QUARTER_SHIFT (18)
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#define MAX31855_THERMOCOUPLE_FRACTIONAL_QUARTER_MASK (1UL << MAX31855_THERMOCOUPLE_FRACTIONAL_QUARTER_SHIFT)
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#define MAX31855_INTERNAL_SIGN_SHIFT (15)
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#define MAX31855_INTERNAL_SIGN_MASK (1UL << MAX31855_INTERNAL_SIGN_SHIFT)
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#define MAX31855_INTERNAL_INTEGER_SHIFT (8)
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#define MAX31855_INTERNAL_INTEGER_MASK (0x7FUL << MAX31855_INTERNAL_INTEGER_SHIFT)
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#define MAX31855_INTERNAL_FRACTIONAL_HALF_SHIFT (7)
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#define MAX31855_INTERNAL_FRACTIONAL_HALF_MASK (1UL << MAX31855_INTERNAL_FRACTIONAL_HALF_SHIFT)
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#define MAX31855_INTERNAL_FRACTIONAL_QUARTER_SHIFT (6)
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#define MAX31855_INTERNAL_FRACTIONAL_QUARTER_MASK (1UL << MAX31855_INTERNAL_FRACTIONAL_QUARTER_SHIFT)
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#define MAX31855_INTERNAL_FRACTIONAL_EIGHTH_SHIFT (5)
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#define MAX31855_INTERNAL_FRACTIONAL_EIGHTH_MASK (1UL << MAX31855_INTERNAL_FRACTIONAL_EIGHTH_SHIFT)
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#define MAX31855_INTERNAL_FRACTIONAL_SIXTEENTH_SHIFT (4)
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#define MAX31855_INTERNAL_FRACTIONAL_SIXTEENTH_MASK (1UL << MAX31855_INTERNAL_FRACTIONAL_SIXTEENTH_SHIFT)
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#define MAX31855_FAULT_VCC_SHORT_SHIFT (2)
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#define MAX31855_FAULT_VCC_SHORT_MASK (1UL << MAX31855_FAULT_VCC_SHORT_SHIFT)
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#define MAX31855_FAULT_GND_SHORT_SHIFT (1)
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#define MAX31855_FAULT_GND_SHORT_MASK (1UL << MAX31855_FAULT_GND_SHORT_SHIFT)
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#define MAX31855_FAULT_OPEN_CIRCUIT_SHIFT (0)
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#define MAX31855_FAULT_OPEN_CIRCUIT_MASK (1UL << MAX31855_FAULT_OPEN_CIRCUIT_SHIFT)
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#define MAX31855_FAULT_MASK (MAX31855_FAULT_VCC_SHORT_MASK | \
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MAX31855_FAULT_GND_SHORT_MASK | \
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MAX31855_FAULT_OPEN_CIRCUIT_MASK)
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#ifdef __cplusplus
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}
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#endif
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#endif
/* MAX31855_CONSTANTS_H */
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