bmp3_i2c.c File Reference

Sensor driver for BMP3 sensor via I2C. More...

#include "peripherals/bmp3_i2c.h"

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Functions
static void	parse_sensor_data (struct Bmp3_I2c *bmp)
	local function to extract raw data from i2c buffer and compute compensation with selected precision More...
static void	parse_calib_data (struct Bmp3_I2c *bmp)
	This internal API is used to parse the calibration data, compensates it and store it in device structure. More...
static double	compensate_pressure (struct Bmp3_I2c *bmp)
	This internal API is used to compensate the raw pressure data and return the compensated pressure data in double data type. More...
static double	compensate_temperature (struct Bmp3_I2c *bmp)
	This internal API is used to compensate the raw temperature data and return the compensated temperature data in double data type. More...
static double	bmp3_pow (double base, uint8_t power)
	This internal API is used to calculate the power functionality for double precision floating point values. More...
void	bmp3_i2c_init (struct Bmp3_I2c *bmp, struct i2c_periph *i2c_p, uint8_t addr)
	init function More...
void	bmp3_i2c_periodic (struct Bmp3_I2c *bmp)
	Start new measurement if sensor ready. More...
void	bmp3_i2c_event (struct Bmp3_I2c *bmp)

Detailed Description

Sensor driver for BMP3 sensor via I2C.

Modified for Paparazzi from SDP3 driver from BoshSensortec see https://github.com/BoschSensortec/BMP3-Sensor-API for original code and license

Definition in file bmp3_i2c.c.

Function Documentation

void bmp3_i2c_event

(

struct Bmp3_I2c *

bmp

)

Definition at line 125 of file bmp3_i2c.c.

References BMP3_ALL, BMP3_STATUS_CONFIGURE, BMP3_STATUS_GET_CALIB, BMP3_STATUS_READ_DATA, BMP3_STATUS_UNINIT, i2c_transaction::buf, compensate_pressure(), compensate_temperature(), Bmp3_I2c::data_available, Bmp3_I2c::i2c_trans, I2CTransDone, I2CTransFailed, I2CTransSuccess, Bmp3_I2c::initialized, parse_calib_data(), parse_sensor_data(), Bmp3_I2c::status, and i2c_transaction::status.

Referenced by baro_bmp3_event().

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void bmp3_i2c_init	(	struct Bmp3_I2c *	bmp,
		struct i2c_periph *	i2c_p,
		uint8_t	addr
	)

init function

Definition at line 60 of file bmp3_i2c.c.

References BMP3_STATUS_UNINIT, Bmp3_I2c::data_available, Bmp3_I2c::i2c_p, Bmp3_I2c::i2c_trans, I2CTransDone, Bmp3_I2c::initialized, i2c_transaction::slave_addr, Bmp3_I2c::status, and i2c_transaction::status.

Referenced by baro_bmp3_init().

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void bmp3_i2c_periodic

(

struct Bmp3_I2c *

bmp

)

Start new measurement if sensor ready.

Definition at line 78 of file bmp3_i2c.c.

References BMP3_ALL, BMP3_CALIB_DATA_ADDR, BMP3_CALIB_DATA_LEN, BMP3_CONFIG_ADDR, BMP3_IIR_FILTER_COEFF_3, BMP3_NO_OVERSAMPLING, BMP3_NORMAL_MODE, BMP3_ODR_50_HZ, BMP3_ODR_ADDR, BMP3_OSR_ADDR, BMP3_OVERSAMPLING_8X, BMP3_P_AND_T_HEADER_DATA_LEN, BMP3_PWR_CTRL_ADDR, BMP3_SENS_STATUS_REG_ADDR, BMP3_STATUS_CONFIGURE, BMP3_STATUS_GET_CALIB, BMP3_STATUS_READ_DATA, BMP3_STATUS_UNINIT, i2c_transaction::buf, Bmp3_I2c::data_available, Bmp3_I2c::i2c_p, Bmp3_I2c::i2c_trans, i2c_transceive(), i2c_transmit(), I2CTransDone, Bmp3_I2c::initialized, i2c_transaction::slave_addr, Bmp3_I2c::status, and i2c_transaction::status.

Referenced by baro_bmp3_periodic().

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static double bmp3_pow ( double  base, uint8_t  power  )

static

This internal API is used to calculate the power functionality for double precision floating point values.

Definition at line 320 of file bmp3_i2c.c.

Referenced by compensate_pressure().

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static double compensate_pressure ( struct Bmp3_I2c *  bmp )

static

This internal API is used to compensate the raw pressure data and return the compensated pressure data in double data type.

Definition at line 281 of file bmp3_i2c.c.

References bmp3_pow(), bmp3_quantized_calib_data::par_p1, bmp3_quantized_calib_data::par_p10, bmp3_quantized_calib_data::par_p11, bmp3_quantized_calib_data::par_p2, bmp3_quantized_calib_data::par_p3, bmp3_quantized_calib_data::par_p4, bmp3_quantized_calib_data::par_p5, bmp3_quantized_calib_data::par_p6, bmp3_quantized_calib_data::par_p7, bmp3_quantized_calib_data::par_p8, bmp3_quantized_calib_data::par_p9, Bmp3_I2c::pressure, Bmp3_I2c::quant_calib, Bmp3_I2c::raw_pressure, and bmp3_quantized_calib_data::t_lin.

Referenced by bmp3_i2c_event().

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static double compensate_temperature ( struct Bmp3_I2c *  bmp )

static

This internal API is used to compensate the raw temperature data and return the compensated temperature data in double data type.

Definition at line 261 of file bmp3_i2c.c.

References bmp3_quantized_calib_data::par_t1, bmp3_quantized_calib_data::par_t2, bmp3_quantized_calib_data::par_t3, Bmp3_I2c::quant_calib, Bmp3_I2c::raw_temperature, bmp3_quantized_calib_data::t_lin, and Bmp3_I2c::temperature.

Referenced by bmp3_i2c_event().

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static void parse_calib_data ( struct Bmp3_I2c *  bmp )

static

This internal API is used to parse the calibration data, compensates it and store it in device structure.

Definition at line 193 of file bmp3_i2c.c.

References BMP3_CONCAT_BYTES, i2c_transaction::buf, Bmp3_I2c::calib, Bmp3_I2c::i2c_trans, bmp3_reg_calib_data::par_p1, bmp3_quantized_calib_data::par_p1, bmp3_reg_calib_data::par_p10, bmp3_quantized_calib_data::par_p10, bmp3_reg_calib_data::par_p11, bmp3_quantized_calib_data::par_p11, bmp3_reg_calib_data::par_p2, bmp3_quantized_calib_data::par_p2, bmp3_reg_calib_data::par_p3, bmp3_quantized_calib_data::par_p3, bmp3_reg_calib_data::par_p4, bmp3_quantized_calib_data::par_p4, bmp3_reg_calib_data::par_p5, bmp3_quantized_calib_data::par_p5, bmp3_reg_calib_data::par_p6, bmp3_quantized_calib_data::par_p6, bmp3_reg_calib_data::par_p7, bmp3_quantized_calib_data::par_p7, bmp3_reg_calib_data::par_p8, bmp3_quantized_calib_data::par_p8, bmp3_reg_calib_data::par_p9, bmp3_quantized_calib_data::par_p9, bmp3_reg_calib_data::par_t1, bmp3_quantized_calib_data::par_t1, bmp3_reg_calib_data::par_t2, bmp3_quantized_calib_data::par_t2, bmp3_reg_calib_data::par_t3, bmp3_quantized_calib_data::par_t3, and Bmp3_I2c::quant_calib.

Referenced by bmp3_i2c_event().

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static void parse_sensor_data ( struct Bmp3_I2c *  bmp )

static

local function to extract raw data from i2c buffer and compute compensation with selected precision

Definition at line 166 of file bmp3_i2c.c.

References i2c_transaction::buf, Bmp3_I2c::i2c_trans, Bmp3_I2c::raw_pressure, and Bmp3_I2c::raw_temperature.

Referenced by bmp3_i2c_event().

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