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61 lines
2.5 KiB
C
61 lines
2.5 KiB
C
/*
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* Copyright (C) 2019 Otto-von-Guericke-Universität Magdeburg
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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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/**
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* @ingroup drivers_ina3221
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* @{
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*
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* @file
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* @brief Internal definitions for Texas Instruments INA3221
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* three-channel, high-side current and bus voltage
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* monitor
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*
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* @author Fabian Hüßler <fabian.huessler@ovgu.de>
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*/
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#ifndef INA3221_DEFINES_H
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#define INA3221_DEFINES_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define INA3221_REG_ADDR_LEN (1) /**< Register address length */
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#define INA3221_REG_LEN (2) /**< Register length */
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#define INA3221_SHUNT_VOLTAGE_PRECISION_UV (40) /**< Shunt voltage measurement precision */
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#define INA3221_BUS_VOLTAGE_PRECISION_MV (8) /**< Bus voltage measurement precision */
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#define INA3221_MANUFACTURER_ID (0x5449) /**< INA3221 manufacturer ID */
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#define INA3221_DIE_ID (0x3220) /**< INA3221 DIE ID */
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/**
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* @name INA3221 Limits
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* @{
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*/
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#define INA3221_MAX_SHUNT_REG_VAL ((int16_t)(0x7FF8)) /**< 0111 1111 1111 1000 */
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#define INA3221_MIN_SHUNT_REG_VAL ((int16_t)(0x8000)) /**< 1000 0000 0000 0000 */
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#define INA3221_MAX_BUS_REG_VAL ((int16_t)(0x7FF8)) /**< 0111 1111 1111 1000 */
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#define INA3221_MIN_BUS_REG_VAL ((int16_t)(0x8000)) /**< 1000 0000 0000 0000 */
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#define INA3221_MAX_SHUNT_SUM_REG_VAL ((int16_t)(0x7FFE)) /**< 0111 1111 1111 1110 */
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#define INA3221_MIN_SHUNT_SUM_REG_VAL ((int16_t)(0x8000)) /**< 1000 0000 0000 0000 */
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#define INA3221_MAX_SHUNT_UV (163800) /**< Max. measurable shunt voltage value */
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#define INA3221_MIN_SHUNT_UV (-163840) /**< Min. measurable shunt voltage value */
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#define INA3221_MAX_BUS_MV (26000) /**< Max. measurable bus voltage value */
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#define INA3221_MIN_BUS_MV (0) /**< Min. measurable bus voltage value */
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#define INA3221_MAX_SHUNT_SUM_UV (655320) /**< Max. measurable shunt sum voltage value */
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#define INA3221_MIN_SHUNT_SUM_UV (-655360) /**< Min. measurable shunt sum voltage value */
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/** @} */
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#ifdef __cplusplus
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}
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#endif
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#endif /* INA3221_DEFINES_H */
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/** @} */
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