bmp085.h File Reference

Bosch BMP085 driver interface. More...

#include "mcu_periph/i2c.h"
#include "std.h"

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Data Structures
struct	Bmp085Calib
struct	Bmp085

Typedefs
typedef bool(*	Bmp085EOC) (void)

Enumerations
enum	Bmp085Status {   BMP085_STATUS_UNINIT , BMP085_STATUS_IDLE , BMP085_STATUS_START_TEMP , BMP085_STATUS_READ_TEMP ,   BMP085_STATUS_START_PRESS , BMP085_STATUS_READ_PRESS }

Functions
void	bmp085_read_eeprom_calib (struct Bmp085 *bmp)
void	bmp085_init (struct Bmp085 *bmp, struct i2c_periph *i2c_p, uint8_t addr)
void	bmp085_periodic (struct Bmp085 *bmp)
	Start new measurement if idle or read temp/pressure.
void	bmp085_event (struct Bmp085 *bmp)

Detailed Description

Bosch BMP085 driver interface.

Definition in file bmp085.h.

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Data Structure Documentation

Bmp085Calib

struct Bmp085Calib

Definition at line 42 of file bmp085.h.

Data Fields
int16_t	ac1
int16_t	ac2
int16_t	ac3
uint16_t	ac4
uint16_t	ac5
uint16_t	ac6
int16_t	b1
int16_t	b2
int32_t	b5
int16_t	mb
int16_t	mc
int16_t	md

Bmp085

struct Bmp085

Definition at line 62 of file bmp085.h.

Collaboration diagram for Bmp085:

Data Fields
struct Bmp085Calib	calib
volatile bool	data_available	data ready flag
Bmp085EOC	eoc	function to check End Of Conversion
struct i2c_periph *	i2c_p
struct i2c_transaction	i2c_trans
bool	initialized	config done flag
int32_t	pressure	pressure in Pascal
enum Bmp085Status	status	state machine status
int32_t	temperature	temperature in 0.1 deg Celcius
int32_t	up	uncompensated pressure
int32_t	ut	uncompensated temperature

Typedef Documentation

Bmp085EOC

typedef bool(* Bmp085EOC) (void)

Definition at line 60 of file bmp085.h.

Enumeration Type Documentation

Bmp085Status

enum Bmp085Status

Enumerator
BMP085_STATUS_UNINIT
BMP085_STATUS_IDLE
BMP085_STATUS_START_TEMP
BMP085_STATUS_READ_TEMP
BMP085_STATUS_START_PRESS
BMP085_STATUS_READ_PRESS

Definition at line 33 of file bmp085.h.

Function Documentation

bmp085_event()

void bmp085_event ( struct Bmp085 *  bmp )

extern

Definition at line 142 of file bmp085.c.

References bmp085_compensated_pressure(), bmp085_compensated_temperature(), BMP085_CTRL_REG, BMP085_OSS, BMP085_START_P3, BMP085_STATUS_IDLE, BMP085_STATUS_READ_PRESS, BMP085_STATUS_READ_TEMP, BMP085_STATUS_START_PRESS, BMP085_STATUS_UNINIT, foo, i2c_transmit(), I2CTransDone, I2CTransFailed, and I2CTransSuccess.

Referenced by baro_bmp_event(), and baro_event().

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bmp085_init()

void bmp085_init ( struct Bmp085 *  bmp, struct i2c_periph *  i2c_p, uint8_t  addr  )

extern

Definition at line 83 of file bmp085.c.

References bmp085_eoc_true(), BMP085_STATUS_UNINIT, foo, I2CTransDone, and i2c_periph::status.

Referenced by baro_bmp_init(), and baro_init().

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bmp085_periodic()

void bmp085_periodic ( struct Bmp085 *  bmp )

extern

Start new measurement if idle or read temp/pressure.

Should run at < 40Hz unless eoc check function is provided. At ultra high resolution (oss = 3) conversion time is max 25.5ms.

Definition at line 108 of file bmp085.c.

References BMP085_CTRL_REG, BMP085_DAT_MSB, BMP085_START_TEMP, BMP085_STATUS_IDLE, BMP085_STATUS_READ_PRESS, BMP085_STATUS_READ_TEMP, BMP085_STATUS_START_PRESS, BMP085_STATUS_START_TEMP, foo, i2c_transceive(), and i2c_transmit().

Referenced by baro_bmp_periodic(), and baro_periodic().

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bmp085_read_eeprom_calib()

void bmp085_read_eeprom_calib ( struct Bmp085 *  bmp )

extern

Definition at line 73 of file bmp085.c.

References BMP085_EEPROM_AC1, BMP085_STATUS_UNINIT, foo, i2c_transceive(), and I2CTransDone.

Referenced by baro_bmp_periodic(), and baro_periodic().

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