2016-12-24 17:08:42 +00:00
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/*
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* Driver for barometic pressure sensor MS5611-01BA03
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*
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* Copyright (C) 2016 Bernhard Guillon <Bernhard.Guillon@begu.org>
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*
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* Loosely based on hmc5831 with:
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* Copyright (C) 2016 Ruslan V. Uss <unclerus@gmail.com>
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* BSD Licensed as described in the file LICENSE
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*/
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#ifndef EXTRAS_MS561101BA03_H_
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#define EXTRAS_MS561101BA03_H_
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#include <stdint.h>
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#include <stdbool.h>
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2017-09-01 09:29:32 +00:00
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#include <i2c/i2c.h>
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2016-12-24 17:08:42 +00:00
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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#define MS561101BA03_ADDR_CSB_HIGH 0x76
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#define MS561101BA03_ADDR_CSB_LOW 0x77
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/**
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* Oversampling ratio
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*/
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typedef enum
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{
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MS561101BA03_OSR_256 = 0x00, //!< 256 samples per measurement
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MS561101BA03_OSR_512 = 0x02, //!< 512 samples per measurement
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MS561101BA03_OSR_1024 = 0x04, //!< 1024 samples per measurement
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MS561101BA03_OSR_2048 = 0x06, //!< 2048 samples per measurement
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MS561101BA03_OSR_4096 = 0x08 //!< 4096 samples per measurement
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} ms561101ba03_osr_t;
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/**
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* Configuration data
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*/
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typedef struct
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{
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uint16_t sens; //!< C1 Pressure sensitivity | SENS_t1
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uint16_t off; //!< C2 Pressure offset | OFF_t1
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uint16_t tcs; //!< C3 Temperature coefficient of pressure sensitivity | TCS
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uint16_t tco; //!< C4 Temperature coefficient of pressuer offset | TCO
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uint16_t t_ref; //!< C5 Reference temperature | T_ref
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uint16_t tempsens; //!< C6 Temperature coefficient of the temperature | TEMPSENSE
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} ms561101ba03_config_data_t;
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/**
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* Result
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*/
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typedef struct
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{
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int32_t pressure; //!< Compensated pressure from 10 mbar to 1200 mbar with 0.01 mbar resolution
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int32_t temperature; //!< Temperature from -40 C to 85 C with 0.01 C resulution
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} ms561101ba03_result_t;
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/**
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* Device descriptor
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*/
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typedef struct
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{
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2017-10-18 19:25:48 +00:00
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i2c_dev_t i2c_dev; //!< I2C device settings
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2016-12-24 17:08:42 +00:00
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ms561101ba03_osr_t osr; //!< Oversampling setting
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ms561101ba03_config_data_t config_data; //!< Device configuration, filled upon initalize
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ms561101ba03_result_t result; //!< Result, filled upon co
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int32_t dT; //!< delta temperature, filled uppon co and for internal use only
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} ms561101ba03_t;
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/**
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* Initialize device and read its configuration
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* @param dev Pointer to device descriptor
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* @return true if no errors occured
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*/
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bool ms561101ba03_init(ms561101ba03_t *dev);
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/**
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* Get sensor data with second order temperature compensation
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*
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* The result will be:
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* Compensated pressure from 10 mbar to 1200 mbar with 0.01 mbar resolution
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* dev->result.pressure
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*
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* Temperature from -40 C to 85 C with 0.01 C resulution
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* dev->result.temperature
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*
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* @param dev Pointer to device descriptor
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* @return true if no errors occured
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*/
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bool ms561101ba03_get_sensor_data(ms561101ba03_t *dev);
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#ifdef __cplusplus
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}
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#endif
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#endif /* EXTRAS_MS561101BA03_H_ */
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