mpl3115.h File Reference

Driver for the baro MPL3115A2 from Freescale (i2c) More...

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

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Data Structures
struct	Mpl3115

Macros
#define	MPL3115_I2C_ADDR   0xC0
#define	MPL3115_REG_STATUS   0x00
#define	MPL3115_REG_OUT_P_MSB   0x01
#define	MPL3115_REG_OUT_P_CSB   0x02
#define	MPL3115_REG_OUT_P_LSB   0x03
#define	MPL3115_REG_OUT_T_MSB   0x04
#define	MPL3115_REG_OUT_T_LSB   0x05
#define	MPL3115_REG_WHO_AM_I   0x0C
#define	MPL3115_REG_PT_DATA_CFG   0x13
#define	MPL3115_REG_CTRL_REG1   0x26
#define	MPL3115_REG_CTRL_REG2   0x27
#define	MPL3115_REG_CTRL_REG3   0x28
#define	MPL3115_REG_CTRL_REG4   0x29
#define	MPL3115_REG_CTRL_REG5   0x2A
#define	MPL3115_OST_BIT   (1<<1)
#define	MPL3115_PT_DATA_CFG   0x2
#define	MPL3115_OVERSAMPLING   0x5

Enumerations
enum	Mpl3115Status { MPL_CONF_UNINIT , MPL_CONF_PT_DATA , MPL_CONF_CTRL1 , MPL_CONF_DONE }

Functions
void	mpl3115_init (struct Mpl3115 *mpl, struct i2c_periph *i2c_p, uint8_t addr)
void	mpl3115_configure (struct Mpl3115 *mpl)
void	mpl3115_read (struct Mpl3115 *mpl)
void	mpl3115_event (struct Mpl3115 *mpl)
void	mpl3115_periodic (struct Mpl3115 *mpl)

Detailed Description

Driver for the baro MPL3115A2 from Freescale (i2c)

Definition in file mpl3115.h.

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Data Structure Documentation

Mpl3115

struct Mpl3115

Definition at line 70 of file mpl3115.h.

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Data Fields
bool	alt_mode	set to TRUE to enable altitude output (otherwise pressure)
float	altitude	altitude in meters
volatile bool	data_available	data ready flag
struct i2c_periph *	i2c_p
enum Mpl3115Status	init_status
bool	initialized	config done flag
uint32_t	pressure	pressure in 1/4 Pascal
bool	raw_mode	set to TRUE to enable raw output
struct i2c_transaction	req_trans	I2C transaction for conversion request.
int16_t	temperature	temperature in 1/16 degrees Celcius
struct i2c_transaction	trans	I2C transaction for reading and configuring.

Macro Definition Documentation

MPL3115_I2C_ADDR

#define MPL3115_I2C_ADDR   0xC0

Definition at line 35 of file mpl3115.h.

MPL3115_OST_BIT

#define MPL3115_OST_BIT   (1<<1)

Definition at line 52 of file mpl3115.h.

MPL3115_OVERSAMPLING

#define MPL3115_OVERSAMPLING   0x5

Definition at line 59 of file mpl3115.h.

MPL3115_PT_DATA_CFG

#define MPL3115_PT_DATA_CFG   0x2

Definition at line 56 of file mpl3115.h.

MPL3115_REG_CTRL_REG1

#define MPL3115_REG_CTRL_REG1   0x26

Definition at line 46 of file mpl3115.h.

MPL3115_REG_CTRL_REG2

#define MPL3115_REG_CTRL_REG2   0x27

Definition at line 47 of file mpl3115.h.

MPL3115_REG_CTRL_REG3

#define MPL3115_REG_CTRL_REG3   0x28

Definition at line 48 of file mpl3115.h.

MPL3115_REG_CTRL_REG4

#define MPL3115_REG_CTRL_REG4   0x29

Definition at line 49 of file mpl3115.h.

MPL3115_REG_CTRL_REG5

#define MPL3115_REG_CTRL_REG5   0x2A

Definition at line 50 of file mpl3115.h.

MPL3115_REG_OUT_P_CSB

#define MPL3115_REG_OUT_P_CSB   0x02

Definition at line 40 of file mpl3115.h.

MPL3115_REG_OUT_P_LSB

#define MPL3115_REG_OUT_P_LSB   0x03

Definition at line 41 of file mpl3115.h.

MPL3115_REG_OUT_P_MSB

#define MPL3115_REG_OUT_P_MSB   0x01

Definition at line 39 of file mpl3115.h.

MPL3115_REG_OUT_T_LSB

#define MPL3115_REG_OUT_T_LSB   0x05

Definition at line 43 of file mpl3115.h.

MPL3115_REG_OUT_T_MSB

#define MPL3115_REG_OUT_T_MSB   0x04

Definition at line 42 of file mpl3115.h.

MPL3115_REG_PT_DATA_CFG

#define MPL3115_REG_PT_DATA_CFG   0x13

Definition at line 45 of file mpl3115.h.

MPL3115_REG_STATUS

#define MPL3115_REG_STATUS   0x00

Definition at line 38 of file mpl3115.h.

MPL3115_REG_WHO_AM_I

#define MPL3115_REG_WHO_AM_I   0x0C

Definition at line 44 of file mpl3115.h.

Enumeration Type Documentation

Mpl3115Status

enum Mpl3115Status

Enumerator
MPL_CONF_UNINIT
MPL_CONF_PT_DATA
MPL_CONF_CTRL1
MPL_CONF_DONE

Definition at line 63 of file mpl3115.h.

Function Documentation

mpl3115_configure()

void mpl3115_configure

(

struct Mpl3115 *

mpl

)

Definition at line 81 of file mpl3115.c.

References I2CTransDone, I2CTransSuccess, Mpl3115::init_status, mpl3115_send_config(), MPL_CONF_UNINIT, i2c_transaction::status, and Mpl3115::trans.

Referenced by mpl3115_periodic().

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mpl3115_event()

void mpl3115_event

(

struct Mpl3115 *

mpl

)

Definition at line 107 of file mpl3115.c.

References Mpl3115::alt_mode, Mpl3115::altitude, i2c_transaction::buf, Mpl3115::data_available, I2CTransDone, I2CTransFailed, I2CTransSuccess, Mpl3115::init_status, Mpl3115::initialized, mpl3115_send_config(), MPL_CONF_UNINIT, Mpl3115::pressure, Mpl3115::raw_mode, Mpl3115::req_trans, i2c_transaction::status, Mpl3115::temperature, and Mpl3115::trans.

Referenced by apogee_baro_event(), and baro_mpl3115_read_event().

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mpl3115_init()

void mpl3115_init	(	struct Mpl3115 *	mpl,
		struct i2c_periph *	i2c_p,
		uint8_t	addr
	)

Definition at line 31 of file mpl3115.c.

References Mpl3115::alt_mode, Mpl3115::altitude, Mpl3115::i2c_p, I2CTransDone, Mpl3115::init_status, Mpl3115::initialized, MPL_CONF_UNINIT, Mpl3115::pressure, Mpl3115::raw_mode, Mpl3115::req_trans, i2c_transaction::slave_addr, i2c_transaction::status, Mpl3115::temperature, and Mpl3115::trans.

Referenced by baro_init(), and baro_mpl3115_init().

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mpl3115_periodic()

void mpl3115_periodic

(

struct Mpl3115 *

mpl

)

Definition at line 153 of file mpl3115.c.

References Mpl3115::initialized, mpl3115_configure(), and mpl3115_read().

Referenced by baro_mpl3115_read_periodic(), and baro_periodic().

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mpl3115_read()

void mpl3115_read

(

struct Mpl3115 *

mpl

)

Definition at line 92 of file mpl3115.c.

References Mpl3115::alt_mode, i2c_transaction::buf, Mpl3115::i2c_p, i2c_transceive(), i2c_transmit(), I2CTransDone, Mpl3115::initialized, MPL3115_OST_BIT, MPL3115_OVERSAMPLING, MPL3115_REG_CTRL_REG1, MPL3115_REG_STATUS, Mpl3115::raw_mode, Mpl3115::req_trans, i2c_transaction::slave_addr, i2c_transaction::status, and Mpl3115::trans.

Referenced by mpl3115_periodic().

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