pressure_board_navarro.c File Reference

Pressure Board Navarro. More...

#include "pressure_board_navarro.h"
#include "subsystems/abi.h"

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Macros
#define	PBN_I2C_DEV   i2c0
	Default I2C device on tiny is i2c0. More...
#define	PBN_I2C_ADDR   0x28
	Sensor I2C slave address. More...
#define	OFFSET_NBSAMPLES_AVRG   100
	Number of values to compute an offset at startup. More...
#define	PBN_START_DELAY   30
	Number of loops before starting to store data. More...
#define	PBN_OFFSET_FILTER   7
	Weight for offset IIR filter. More...
#define	PBN_AIRSPEED_SCALE   (1./0.54)
	Quadratic scale factor for airspeed. More...
#define	PBN_ALTITUDE_SCALE   0.32
	Linear scale factor for altitude. More...
#define	PBN_PRESSURE_OFFSET   101325.0

Functions
void	pbn_init (void)
void	pbn_periodic (void)
void	pbn_read_event (void)

Variables
struct PBNState	pbn
struct i2c_transaction	pbn_trans
static uint16_t	offset_cnt
static uint16_t	startup_delay

Detailed Description

Pressure Board Navarro.

Definition in file pressure_board_navarro.c.

Macro Definition Documentation

#define OFFSET_NBSAMPLES_AVRG   100

Number of values to compute an offset at startup.

Definition at line 52 of file pressure_board_navarro.c.

Referenced by pbn_init().

#define PBN_AIRSPEED_SCALE   (1./0.54)

Quadratic scale factor for airspeed.

Definition at line 62 of file pressure_board_navarro.c.

Referenced by pbn_read_event().

#define PBN_ALTITUDE_SCALE   0.32

Linear scale factor for altitude.

Definition at line 67 of file pressure_board_navarro.c.

Referenced by pbn_read_event().

#define PBN_I2C_ADDR   0x28

Sensor I2C slave address.

Definition at line 49 of file pressure_board_navarro.c.

Referenced by pbn_periodic().

#define PBN_I2C_DEV   i2c0

Default I2C device on tiny is i2c0.

Definition at line 45 of file pressure_board_navarro.c.

Referenced by pbn_periodic().

#define PBN_OFFSET_FILTER   7

Weight for offset IIR filter.

Definition at line 58 of file pressure_board_navarro.c.

Referenced by pbn_init(), and pbn_read_event().

#define PBN_PRESSURE_OFFSET   101325.0

Definition at line 71 of file pressure_board_navarro.c.

Referenced by pbn_read_event().

#define PBN_START_DELAY   30

Number of loops before starting to store data.

Definition at line 55 of file pressure_board_navarro.c.

Referenced by pbn_init().

Function Documentation

void pbn_init

(

void

)

Definition at line 82 of file pressure_board_navarro.c.

References PBNState::airspeed, PBNState::airspeed_adc, PBNState::airspeed_filter, PBNState::airspeed_offset, PBNState::altitude, PBNState::altitude_adc, PBNState::altitude_offset, PBNState::data_valid, OFFSET_NBSAMPLES_AVRG, pbn, PBN_OFFSET_FILTER, and PBN_START_DELAY.

void pbn_periodic

(

void

)

Definition at line 97 of file pressure_board_navarro.c.

References i2c_transaction::buf, i2c_transceive(), PBN_I2C_ADDR, PBN_I2C_DEV, pbn_trans, and startup_delay.

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void pbn_read_event

(

void

)

Definition at line 111 of file pressure_board_navarro.c.

References PBNState::airspeed, PBNState::airspeed_adc, PBNState::airspeed_filter, PBNState::airspeed_offset, PBNState::altitude, PBNState::altitude_adc, PBNState::altitude_offset, BARO_PBN_SENDER_ID, i2c_transaction::buf, PBNState::data_valid, I2CTransDone, Max, offset_cnt, pbn, PBN_AIRSPEED_SCALE, PBN_ALTITUDE_SCALE, PBN_OFFSET_FILTER, PBN_PRESSURE_OFFSET, pbn_trans, stateSetAirspeed_f(), and i2c_transaction::status.

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Variable Documentation

uint16_t offset_cnt

static

Definition at line 79 of file pressure_board_navarro.c.

Referenced by pbn_read_event().

struct PBNState pbn

Definition at line 76 of file pressure_board_navarro.c.

Referenced by pbn_init(), and pbn_read_event().

struct i2c_transaction pbn_trans

Definition at line 77 of file pressure_board_navarro.c.

Referenced by pbn_periodic(), and pbn_read_event().

uint16_t startup_delay

static

Definition at line 80 of file pressure_board_navarro.c.

Referenced by pbn_periodic().