ad7124_regs_configs.h

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/***************************************************************************//*
 * @file    ad7124_reg_app_config.h
 * @brief   Register configurations global defines
 * @details
******************************************************************************
 * Copyright (c) 2021 Analog Devices, Inc. All Rights Reserved.
 *
 * This software is proprietary to Analog Devices, Inc. and its licensors.
 * By using this software you agree to the terms of the associated
 * Analog Devices Software License Agreement.
******************************************************************************/
 
#ifndef AD7124_REGS_CONFIGS_H_
#define AD7124_REGS_CONFIGS_H_
 
/******************************************************************************/
/***************************** Include Files **********************************/
/******************************************************************************/
 
#include "app_config.h"
#include "ad7124.h"
 
/******************************************************************************/
/********************* Macros and Constants Definitions ***********************/
/******************************************************************************/
 
/* 2-wire RTD configurations */
#define RTD1_2WIRE_IOUT0    0   // AIN0
#define RTD2_2WIRE_IOUT0    1   // AIN1
#define RTD3_2WIRE_IOUT0    8   // AIN8
#define RTD4_2WIRE_IOUT0    11  // AIN11
#define RTD5_2WIRE_IOUT0    14  // AIN14
 
#define RTD1_2WIRE_AINP     2   // AIN2
#define RTD2_2WIRE_AINP     4   // AIN4
#define RTD3_2WIRE_AINP     6   // AIN6
#define RTD4_2WIRE_AINP     9   // AIN9
#define RTD5_2WIRE_AINP     12  // AIN12
 
#define RTD1_2WIRE_AINM     3   // AIN3
#define RTD2_2WIRE_AINM     5   // AIN5
#define RTD3_2WIRE_AINM     7   // AIN7
#define RTD4_2WIRE_AINM     10  // AIN10
#define RTD5_2WIRE_AINM     13  // AIN13
 
#define RTD_2WIRE_GAIN_VALUE    4   // Gain=16
 
/* 3-wire RTD configurations */
#define RTD1_3WIRE_IOUT0    0   // AIN0
#define RTD2_3WIRE_IOUT0    6   // AIN6
#define RTD3_3WIRE_IOUT0    10  // AIN10
#define RTD4_3WIRE_IOUT0    14  // AIN14
 
#define RTD1_3WIRE_IOUT1    1   // AIN1
#define RTD2_3WIRE_IOUT1    7   // AIN7
#define RTD3_3WIRE_IOUT1    11  // AIN11
#define RTD4_3WIRE_IOUT1    15  // AIN15
 
#define RTD1_3WIRE_AINP     2   // AIN2
#define RTD2_3WIRE_AINP     4   // AIN4
#define RTD3_3WIRE_AINP     8   // AIN8
#define RTD4_3WIRE_AINP     12  // AIN12
 
#define RTD1_3WIRE_AINM     3   // AIN3
#define RTD2_3WIRE_AINM     5   // AIN5
#define RTD3_3WIRE_AINM     9   // AIN9
#define RTD4_3WIRE_AINM     13  // AIN13
 
#define SINGLE_3WIRE_RTD_GAIN   4   // Gain=16
#define MULTI_3WIRE_RTD_GAIN    5   // Gain=32
#define RTD_3WIRE_EXC_MEASURE_GAIN  0   // Gain=1
 
/* 3-wire RTD excitation current measurement inputs (for calibration) */
#if defined(AD7124_8)
#define RTD_3WIRE_EXC_MEASURE_AINP      14  // AIN14
#define RTD_3WIRE_EXC_MEASURE_AINM      15  // AIN15
#else
#define RTD_3WIRE_EXC_MEASURE_AINP      6   // AIN6
#define RTD_3WIRE_EXC_MEASURE_AINM      7   // AIN7
#endif
 
/* 4-wire RTD configurations */
#define RTD1_4WIRE_IOUT0    0   // AIN0
#define RTD2_4WIRE_IOUT0    1   // AIN1
#define RTD3_4WIRE_IOUT0    8   // AIN8
#define RTD4_4WIRE_IOUT0    11  // AIN11
#define RTD5_4WIRE_IOUT0    14  // AIN14
 
#define RTD1_4WIRE_AINP     2   // AIN2
#define RTD2_4WIRE_AINP     4   // AIN4
#define RTD3_4WIRE_AINP     6   // AIN6
#define RTD4_4WIRE_AINP     9   // AIN9
#define RTD5_4WIRE_AINP     12  // AIN12
 
#define RTD1_4WIRE_AINM     3   // AIN3
#define RTD2_4WIRE_AINM     5   // AIN5
#define RTD3_4WIRE_AINM     7   // AIN7
#define RTD4_4WIRE_AINM     10  // AIN10
#define RTD5_4WIRE_AINM     13  // AIN13
 
#define RTD_4WIRE_GAIN_VALUE    4   // Gain=16
 
/* RTD common configurations */
#define RTD_IOUT0_500UA_EXC     4   // 500uA IOUT0 excitation current
#define RTD_IOUT1_500UA_EXC     4   // 500uA IOUT1 excitation current
#define RTD_IOUT0_250UA_EXC     3   // 250uA IOUT0 excitation current
#define RTD_IOUT1_250UA_EXC     3   // 250uA IOUT1 excitation current
#define RTD_IOUT_EXC_OFF        0   // Excitation current is off
 
 
/* NTC Thermistor configurations */
#define NTC1_THERMISTOR_AINP    0   // AIN0
#define NTC2_THERMISTOR_AINP    2   // AIN2
#define NTC3_THERMISTOR_AINP    4   // AIN4
#define NTC4_THERMISTOR_AINP    6   // AIN6
#define NTC5_THERMISTOR_AINP    8   // AIN8
#define NTC6_THERMISTOR_AINP    10  // AIN10
#define NTC7_THERMISTOR_AINP    12  // AIN12
#define NTC8_THERMISTOR_AINP    14  // AIN14
 
#define NTC1_THERMISTOR_AINM    1   // AIN1
#define NTC2_THERMISTOR_AINM    3   // AIN3
#define NTC3_THERMISTOR_AINM    5   // AIN5
#define NTC4_THERMISTOR_AINM    7   // AIN7
#define NTC5_THERMISTOR_AINM    9   // AIN9
#define NTC6_THERMISTOR_AINM    11  // AIN11
#define NTC7_THERMISTOR_AINM    13  // AIN13
#define NTC8_THERMISTOR_AINM    15  // AIN15
 
/* NTC Thermistor common configurations */
#define THERMISTOR_GAIN_VALUE   0   // Gain=1
 
 
/* Thermocouple configurations */
#define THERMOCOUPLE1_AINP      2   // AIN2
#define THERMOCOUPLE2_AINP      6   // AIN6
#define THERMOCOUPLE3_AINP      8   // AIN8
#define THERMOCOUPLE4_AINP      10  // AIN10
#define THERMOCOUPLE5_AINP      12  // AIN12
#define THERMOCOUPLE6_AINP      14  // AIN14
 
#define THERMOCOUPLE1_AINM      3   // AIN3
#define THERMOCOUPLE2_AINM      7   // AIN7
#define THERMOCOUPLE3_AINM      9   // AIN9
#define THERMOCOUPLE4_AINM      11  // AIN11
#define THERMOCOUPLE5_AINM      13  // AIN13
#define THERMOCOUPLE6_AINM      15  // AIN15
 
/* Thermocouple common configurations */
#define THERMOCOUPLE_GAIN_VALUE     7   // Gain=128
 
/* Cold Junction configurations for thermocouple compensation */
/* Note: RTD to be used is either 2-wire or 4-wire */
#define CJC_RTD_AINP            4   // AIN4
#define CJC_RTD_AINM            5   // AIN5
#define CJC_RTD_IOUT0           1   // AIN1
#define CJC_RTD_IOUT0_EXC       RTD_IOUT0_500UA_EXC // 500uA
 
#define CJC_PTC_THERMISTOR_AINP     4   // AIN4
#define CJC_PTC_THERMISTOR_AINM     5   // AIN5
#define CJC_PTC_THERMISTOR_IOUT0    1   // AIN1
#define CJC_PTC_THERMISTOR_IOUT0_EXC 4  // 500uA
 
#define RTD_PT1000_GAIN_VALUE       0   // Gain=1
 
 
/* ADC internal calibration configurations */
#define ADC_CALIBRATION_GAIN        1   // Gain = 2
#define ADC_CALIBRATION_PWR_MODE    0   // Low power mode
#define ADC_CALIBRATION_REF_SRC     2   // Internal Vref
 
/* CJC sensor types supported for thermocouple measurement */
typedef enum {
    PT100_4WIRE_RTD,
    THERMISTOR_PTC_KY81_110,
    PT1000_2WIRE_RTD,
    NUM_OF_CJC_SENSORS
} cjc_sensor_type;
typedef enum {…};
 
/******************************************************************************/
/********************** Public/Extern Declarations ****************************/
/******************************************************************************/
 
/*
 * Arrays holding the info for the AD7124 registers - address, initial value,
 * size and access type.
 */
extern const struct ad7124_st_reg ad7124_regs_config_2wire_rtd[AD7124_REG_NO];
extern const struct ad7124_st_reg ad7124_regs_config_3wire_rtd[AD7124_REG_NO];
extern const struct ad7124_st_reg ad7124_regs_config_4wire_rtd[AD7124_REG_NO];
extern const struct ad7124_st_reg ad7124_regs_config_thermistor[AD7124_REG_NO];
extern const struct ad7124_st_reg
    ad7124_regs_config_thermocouple[AD7124_REG_NO];
 
#endif /* AD7124_REGS_CONFIGS_H_ */