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Feature/ms561101ba03 (#308)

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Driver for the ms561101ba03 barometric pressure sensor
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mr-nice 2016-12-24 18:08:42 +01:00 • committed by Ruslan V. Uss
parent 44124409e4
commit 34d783a289
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/*
* Driver for barometic pressure sensor MS5611-01BA03
*
* Copyright (C) 2016 Bernhard Guillon <Bernhard.Guillon@begu.org>
*
* Loosely based on hmc5831 with:
* Copyright (C) 2016 Ruslan V. Uss <unclerus@gmail.com>
* BSD Licensed as described in the file LICENSE
*/
#ifndef EXTRAS_MS561101BA03_H_
#define EXTRAS_MS561101BA03_H_
#include <stdint.h>
#include <stdbool.h>
#ifdef __cplusplus
extern "C"
{
#endif
#define MS561101BA03_ADDR_CSB_HIGH 0x76
#define MS561101BA03_ADDR_CSB_LOW 0x77
/**
* Oversampling ratio
*/
typedef enum
{
MS561101BA03_OSR_256 = 0x00, //!< 256 samples per measurement
MS561101BA03_OSR_512 = 0x02, //!< 512 samples per measurement
MS561101BA03_OSR_1024 = 0x04, //!< 1024 samples per measurement
MS561101BA03_OSR_2048 = 0x06, //!< 2048 samples per measurement
MS561101BA03_OSR_4096 = 0x08 //!< 4096 samples per measurement
} ms561101ba03_osr_t;
/**
* Configuration data
*/
typedef struct
{
uint16_t sens; //!< C1 Pressure sensitivity | SENS_t1
uint16_t off; //!< C2 Pressure offset | OFF_t1
uint16_t tcs; //!< C3 Temperature coefficient of pressure sensitivity | TCS
uint16_t tco; //!< C4 Temperature coefficient of pressuer offset | TCO
uint16_t t_ref; //!< C5 Reference temperature | T_ref
uint16_t tempsens; //!< C6 Temperature coefficient of the temperature | TEMPSENSE
} ms561101ba03_config_data_t;
/**
* Result
*/
typedef struct
{
int32_t pressure; //!< Compensated pressure from 10 mbar to 1200 mbar with 0.01 mbar resolution
int32_t temperature; //!< Temperature from -40 C to 85 C with 0.01 C resulution
} ms561101ba03_result_t;
/**
* Device descriptor
*/
typedef struct
{
uint8_t addr; //!< I2C address
ms561101ba03_osr_t osr; //!< Oversampling setting
ms561101ba03_config_data_t config_data; //!< Device configuration, filled upon initalize
ms561101ba03_result_t result; //!< Result, filled upon co
int32_t dT; //!< delta temperature, filled uppon co and for internal use only
} ms561101ba03_t;
/**
* Initialize device and read its configuration
* @param dev Pointer to device descriptor
* @return true if no errors occured
*/
bool ms561101ba03_init(ms561101ba03_t *dev);
/**
* Get sensor data with second order temperature compensation
*
* The result will be:
* Compensated pressure from 10 mbar to 1200 mbar with 0.01 mbar resolution
* dev->result.pressure
*
* Temperature from -40 C to 85 C with 0.01 C resulution
* dev->result.temperature
*
* @param dev Pointer to device descriptor
* @return true if no errors occured
*/
bool ms561101ba03_get_sensor_data(ms561101ba03_t *dev);
#ifdef __cplusplus
}
#endif
#endif /* EXTRAS_MS561101BA03_H_ */