bmp280_i2c.h File Reference

Sensor driver for BMP280 sensor via I2C. More...

#include "peripherals/bmp280_regs.h"
#include "mcu_periph/i2c.h"

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Data Structures
struct	Bmp280_I2c

Functions
void	bmp280_i2c_read_eeprom_calib (struct Bmp280_I2c *bmp)
void	bmp280_i2c_init (struct Bmp280_I2c *bmp, struct i2c_periph *i2c_p, uint8_t addr)
void	bmp280_i2c_periodic (struct Bmp280_I2c *bmp)
void	bmp280_i2c_event (struct Bmp280_I2c *bmp)

Detailed Description

Sensor driver for BMP280 sensor via I2C.

Definition in file bmp280_i2c.h.

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Data Structure Documentation

Bmp280_I2c

struct Bmp280_I2c

Definition at line 35 of file bmp280_i2c.h.

Collaboration diagram for Bmp280_I2c:

Data Fields
struct bmp280_reg_calib_data	calib	calibration data
volatile bool	data_available	data ready flag
struct i2c_periph *	i2c_p
struct i2c_transaction	i2c_trans
bool	initialized	config done flag
float	pressure	pressure in Pascal
uint32_t	raw_pressure	uncompensated pressure
uint32_t	raw_temperature	uncompensated temperature
enum Bmp280Status	status	state machine status
float	temperature	temperature in deg Celcius

Function Documentation

bmp280_i2c_event()

void bmp280_i2c_event

(

struct Bmp280_I2c *

bmp

)

Definition at line 104 of file bmp280_i2c.c.

References BMP280_EOC_BIT, BMP280_NVRAM_COPY_BIT, BMP280_STATUS_CONFIGURE, BMP280_STATUS_GET_CALIB, BMP280_STATUS_READ_DATA_REGS, BMP280_STATUS_READ_STATUS_REG, BMP280_STATUS_UNINIT, i2c_transaction::buf, compensate_pressure(), compensate_temperature(), Bmp280_I2c::data_available, Bmp280_I2c::i2c_trans, I2CTransDone, I2CTransFailed, I2CTransSuccess, Bmp280_I2c::initialized, parse_calib_data(), parse_sensor_data(), Bmp280_I2c::status, and i2c_transaction::status.

Referenced by baro_bmp280_event().

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bmp280_i2c_init()

void bmp280_i2c_init	(	struct Bmp280_I2c *	bmp,
		struct i2c_periph *	i2c_p,
		uint8_t	addr
	)

Definition at line 41 of file bmp280_i2c.c.

References BMP280_STATUS_UNINIT, and I2CTransDone.

Referenced by baro_bmp280_init().

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bmp280_i2c_periodic()

void bmp280_i2c_periodic

(

struct Bmp280_I2c *

bmp

)

Definition at line 57 of file bmp280_i2c.c.

References BMP280_CALIB_DATA_LEN, BMP280_CALIB_LSB_DATA_ADDR, BMP280_CONFIG_LEN, BMP280_CONFIG_REG_ADDR, BMP280_CTRL_MEAS_REG_ADDR, BMP280_DATA_START_REG_ADDR, BMP280_IIR_FILTER_COEFF_2, BMP280_INACTIVITY_62_5_MS, BMP280_OVERSAMPLING_1X_T, BMP280_OVERSAMPLING_8X_P, BMP280_P_T_DATA_LEN, BMP280_POWER_NORMAL_MODE, BMP280_STATUS_CONFIGURE, BMP280_STATUS_GET_CALIB, BMP280_STATUS_READ_DATA_REGS, BMP280_STATUS_READ_STATUS_REG, BMP280_STATUS_REG_ADDR, BMP280_STATUS_UNINIT, i2c_transaction::buf, Bmp280_I2c::data_available, Bmp280_I2c::i2c_p, Bmp280_I2c::i2c_trans, i2c_transceive(), i2c_transmit(), I2CTransDone, Bmp280_I2c::initialized, i2c_transaction::slave_addr, Bmp280_I2c::status, and i2c_transaction::status.

Referenced by baro_bmp280_periodic().

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bmp280_i2c_read_eeprom_calib()

void bmp280_i2c_read_eeprom_calib

(

struct Bmp280_I2c *

bmp

)