Maxim Integrated / DS1775_Digitial_Thermometer_Thermostat

C code and C++ library, driver software for Maxim Integrated DS1775, DS75 thermometer and thermostat temperature sensor. Code supports continuous or shut-down/standby, hysteresis, alarm limits, comparator or interrupt mode, fault filtering, and active low/high. Compact 5-pin SOT23 packaging

Dependents:   DS1775_Digital_Thermostat_Temperature

ds1775.h@9:315236fb3c6a, 2019-04-07 (annotated)

Committer:
phonemacro
Date:
Sun Apr 07 08:59:48 2019 +0000
Revision:
9:315236fb3c6a
Parent:
8:b2d4c71268aa
Child:
10:03645de9c017
updated

Who changed what in which revision?

UserRevisionLine numberNew contents of line
phonemacro 8:b2d4c71268aa 1 /*******************************************************************************
phonemacro 8:b2d4c71268aa 2 * Copyright (C) 2019 Maxim Integrated Products, Inc., All Rights Reserved.
phonemacro 8:b2d4c71268aa 3 *
phonemacro 8:b2d4c71268aa 4 * Permission is hereby granted, free of charge, to any person obtaining a
phonemacro 8:b2d4c71268aa 5 * copy of this software and associated documentation files (the "Software"),
phonemacro 8:b2d4c71268aa 6 * to deal in the Software without restriction, including without limitation
phonemacro 8:b2d4c71268aa 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
phonemacro 8:b2d4c71268aa 8 * and/or sell copies of the Software, and to permit persons to whom the
phonemacro 8:b2d4c71268aa 9 * Software is furnished to do so, subject to the following conditions:
phonemacro 8:b2d4c71268aa 10 *
phonemacro 8:b2d4c71268aa 11 * The above copyright notice and this permission notice shall be included
phonemacro 8:b2d4c71268aa 12 * in all copies or substantial portions of the Software.
phonemacro 8:b2d4c71268aa 13 *
phonemacro 8:b2d4c71268aa 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
phonemacro 8:b2d4c71268aa 15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
phonemacro 8:b2d4c71268aa 16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
phonemacro 8:b2d4c71268aa 17 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
phonemacro 8:b2d4c71268aa 18 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
phonemacro 8:b2d4c71268aa 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
phonemacro 8:b2d4c71268aa 20 * OTHER DEALINGS IN THE SOFTWARE.
phonemacro 8:b2d4c71268aa 21 *
phonemacro 8:b2d4c71268aa 22 * Except as contained in this notice, the name of Maxim Integrated
phonemacro 8:b2d4c71268aa 23 * Products, Inc. shall not be used except as stated in the Maxim Integrated
phonemacro 8:b2d4c71268aa 24 * Products, Inc. Branding Policy.
phonemacro 8:b2d4c71268aa 25 *
phonemacro 8:b2d4c71268aa 26 * The mere transfer of this software does not imply any licenses
phonemacro 8:b2d4c71268aa 27 * of trade secrets, proprietary technology, copyrights, patents,
phonemacro 8:b2d4c71268aa 28 * trademarks, maskwork rights, or any other form of intellectual
phonemacro 8:b2d4c71268aa 29 * property whatsoever. Maxim Integrated Products, Inc. retains all
phonemacro 8:b2d4c71268aa 30 * ownership rights.
phonemacro 8:b2d4c71268aa 31 *******************************************************************************
phonemacro 8:b2d4c71268aa 32 * @file DS1775.h
phonemacro 8:b2d4c71268aa 33 *******************************************************************************
phonemacro 8:b2d4c71268aa 34 */
phonemacro 8:b2d4c71268aa 35 #ifndef DS1775_H
phonemacro 8:b2d4c71268aa 36 #define DS1775_H
phonemacro 8:b2d4c71268aa 37 #include "mbed.h"
phonemacro 8:b2d4c71268aa 38
phonemacro 8:b2d4c71268aa 39 #define DS1775_NO_ERROR 0
phonemacro 8:b2d4c71268aa 40 #define DS1775_ERROR -1
phonemacro 8:b2d4c71268aa 41
phonemacro 8:b2d4c71268aa 42 #define DS1775_REG_TEMPERATURE 0X00
phonemacro 8:b2d4c71268aa 43 #define DS1775_REG_CONFIGURATION 0X01
phonemacro 8:b2d4c71268aa 44 #define DS1775_REG_THYST_LOW_TRIP 0X02
phonemacro 8:b2d4c71268aa 45 #define DS1775_REG_TOS_HIGH_TRIP 0X03
phonemacro 8:b2d4c71268aa 46 #define DS1775_REG_MAX 0X03
phonemacro 8:b2d4c71268aa 47
phonemacro 8:b2d4c71268aa 48
phonemacro 8:b2d4c71268aa 49 #define DS1775_WAIT_CONV_TIME_9BIT (0.1875)
phonemacro 8:b2d4c71268aa 50 #define DS1775_WAIT_CONV_TIME_10BIT (0.375)
phonemacro 8:b2d4c71268aa 51 #define DS1775_WAIT_CONV_TIME_11BIT (0.750)
phonemacro 9:315236fb3c6a 52 #define DS1775_WAIT_CONV_TIME_12BIT (1.5)
phonemacro 9:315236fb3c6a 53
phonemacro 9:315236fb3c6a 54 #define DS1775_CFG_CONTINUOUS (0X00 << 0)
phonemacro 9:315236fb3c6a 55 #define DS1775_CFG_SHUTDOWN (0X01 << 0)
phonemacro 9:315236fb3c6a 56
phonemacro 9:315236fb3c6a 57 #define DS1775_CFG_COMPARATOR_MODE (0X00 << 1)
phonemacro 9:315236fb3c6a 58 #define DS1775_CFG_INTERRUPT_MODE (0X01 << 1)
phonemacro 9:315236fb3c6a 59
phonemacro 9:315236fb3c6a 60 #define DS1775_CFG_OS_POLARITY_ACT_LOW (0x00 << 2)
phonemacro 9:315236fb3c6a 61 #define DS1775_CFG_OS_POLARITY_ACT_HIGH (0x01 << 2)
phonemacro 9:315236fb3c6a 62
phonemacro 9:315236fb3c6a 63 #define DS1775_CFG_FAULT_FILTER_1 (0x00 << 3)
phonemacro 9:315236fb3c6a 64 #define DS1775_CFG_FAULT_FILTER_2 (0x01 << 3)
phonemacro 9:315236fb3c6a 65 #define DS1775_CFG_FAULT_FILTER_4 (0x02 << 3)
phonemacro 9:315236fb3c6a 66 #define DS1775_CFG_FAULT_FILTER_6 (0x03 << 3)
phonemacro 8:b2d4c71268aa 67
phonemacro 8:b2d4c71268aa 68 #define DS1775_CFG_RESOLUTION_9BIT (0x00 << 5)
phonemacro 8:b2d4c71268aa 69 #define DS1775_CFG_RESOLUTION_10BIT (0x01 << 5)
phonemacro 8:b2d4c71268aa 70 #define DS1775_CFG_RESOLUTION_11BIT (0x02 << 5)
phonemacro 8:b2d4c71268aa 71 #define DS1775_CFG_RESOLUTION_12BIT (0x03 << 5)
phonemacro 8:b2d4c71268aa 72
phonemacro 8:b2d4c71268aa 73
phonemacro 8:b2d4c71268aa 74
phonemacro 9:315236fb3c6a 75
phonemacro 9:315236fb3c6a 76
phonemacro 8:b2d4c71268aa 77
phonemacro 8:b2d4c71268aa 78 #define DS1775_CFG_OVER_TEMP_MASK (0x80)
phonemacro 8:b2d4c71268aa 79
phonemacro 8:b2d4c71268aa 80
phonemacro 8:b2d4c71268aa 81 #define DS1775_I2C_SLAVE_ADR_R0 (0x90 >> 1) // code uses the 7 bit address
phonemacro 8:b2d4c71268aa 82 #define DS1775_I2C_SLAVE_ADR_R1 (0x92 >> 1)
phonemacro 8:b2d4c71268aa 83 #define DS1775_I2C_SLAVE_ADR_R2 (0x94 >> 1)
phonemacro 8:b2d4c71268aa 84 #define DS1775_I2C_SLAVE_ADR_R3 (0x96 >> 1)
phonemacro 8:b2d4c71268aa 85 #define DS1775_I2C_SLAVE_ADR_R4 (0x98 >> 1)
phonemacro 8:b2d4c71268aa 86 #define DS1775_I2C_SLAVE_ADR_R5 (0x9A >> 1)
phonemacro 8:b2d4c71268aa 87 #define DS1775_I2C_SLAVE_ADR_R6 (0x9C >> 1)
phonemacro 8:b2d4c71268aa 88 #define DS1775_I2C_SLAVE_ADR_R7 (0x9E >> 1)
phonemacro 8:b2d4c71268aa 89
phonemacro 8:b2d4c71268aa 90 #define DS1775_CF_NORMAL_FORMAT (0.00390625F)
phonemacro 8:b2d4c71268aa 91 #define DS1775_CF_EXTENDED_FORMAT (0.0078125F)
phonemacro 8:b2d4c71268aa 92
phonemacro 8:b2d4c71268aa 93 /** @union ds1775_raw_data
phonemacro 8:b2d4c71268aa 94 * @brief union data structure for byte word manipulations
phonemacro 8:b2d4c71268aa 95 */
phonemacro 8:b2d4c71268aa 96 union ds1775_raw_data {
phonemacro 8:b2d4c71268aa 97 struct {
phonemacro 8:b2d4c71268aa 98 uint8_t lsb;
phonemacro 8:b2d4c71268aa 99 uint8_t msb;
phonemacro 8:b2d4c71268aa 100 };
phonemacro 8:b2d4c71268aa 101 struct {
phonemacro 8:b2d4c71268aa 102 uint16_t magnitude_bits:15;
phonemacro 8:b2d4c71268aa 103 uint16_t sign_bit:1;
phonemacro 8:b2d4c71268aa 104 };
phonemacro 8:b2d4c71268aa 105 uint16_t uwrd;
phonemacro 8:b2d4c71268aa 106 int16_t swrd;
phonemacro 8:b2d4c71268aa 107 };
phonemacro 8:b2d4c71268aa 108 #define DS1775_U16_MAX ((uint16_t)~0U)
phonemacro 8:b2d4c71268aa 109 #define DS1775_S16_MAX ((int16_t)(DS1775_U16_MAX>>1))
phonemacro 8:b2d4c71268aa 110 #define DS1775_S16_MIN ((int16_t)(-DS1775_S16_MAX - 1))
phonemacro 8:b2d4c71268aa 111
phonemacro 8:b2d4c71268aa 112 #endif/* MAX31875_H */