97 lines
2.9 KiB
C
97 lines
2.9 KiB
C
/*
|
|
* 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>
|
|
#include <i2c/i2c.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
|
|
{
|
|
i2c_dev_t i2c_dev; //!< I2C device settings
|
|
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_ */
|