AP_Airspeed_MS4525 Class Reference

#include <AP_Airspeed_MS4525.h>

Inheritance diagram for AP_Airspeed_MS4525:

Collaboration diagram for AP_Airspeed_MS4525:

Public Member Functions
	AP_Airspeed_MS4525 (AP_Airspeed &frontend, uint8_t _instance)
	~AP_Airspeed_MS4525 (void)
bool	init () override
bool	get_differential_pressure (float &pressure) override
bool	get_temperature (float &temperature) override
Public Member Functions inherited from AP_Airspeed_Backend
	AP_Airspeed_Backend (AP_Airspeed &frontend, uint8_t instance)
virtual	~AP_Airspeed_Backend ()

Private Member Functions
void	_measure ()
void	_collect ()
void	_timer ()
void	_voltage_correction (float &diff_press_pa, float &temperature)
float	_get_pressure (int16_t dp_raw) const
float	_get_temperature (int16_t dT_raw) const

Private Attributes
float	_temp_sum
float	_press_sum
uint32_t	_temp_count
uint32_t	_press_count
float	_temperature
float	_pressure
uint32_t	_last_sample_time_ms
uint32_t	_measurement_started_ms
AP_HAL::OwnPtr< AP_HAL::I2CDevice >	_dev

Additional Inherited Members
Protected Member Functions inherited from AP_Airspeed_Backend
int8_t	get_pin (void) const
float	get_psi_range (void) const
uint8_t	get_bus (void) const
AP_Airspeed::pitot_tube_order	get_tube_order (void) const
float	get_airspeed_ratio (void) const
void	set_use_zero_offset (void)
void	set_skip_cal (void)
void	set_offset (float ofs)
Protected Attributes inherited from AP_Airspeed_Backend
AP_HAL::Semaphore *	sem

Detailed Description

Definition at line 30 of file AP_Airspeed_MS4525.h.

Constructor & Destructor Documentation

AP_Airspeed_MS4525()

AP_Airspeed_MS4525::AP_Airspeed_MS4525	(	AP_Airspeed &	frontend,
		uint8_t	_instance
	)

Definition at line 32 of file AP_Airspeed_MS4525.cpp.

~AP_Airspeed_MS4525()

AP_Airspeed_MS4525::~AP_Airspeed_MS4525 ( void  )

inline

Definition at line 34 of file AP_Airspeed_MS4525.h.

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Member Function Documentation

_collect()

void AP_Airspeed_MS4525::_collect ( )

private

Definition at line 125 of file AP_Airspeed_MS4525.cpp.

Referenced by _timer(), init(), and ~AP_Airspeed_MS4525().

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_get_pressure()

float AP_Airspeed_MS4525::_get_pressure ( int16_t  dp_raw ) const

private

Definition at line 104 of file AP_Airspeed_MS4525.cpp.

Referenced by _collect(), and ~AP_Airspeed_MS4525().

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_get_temperature()

float AP_Airspeed_MS4525::_get_temperature ( int16_t  dT_raw ) const

private

Definition at line 118 of file AP_Airspeed_MS4525.cpp.

Referenced by _collect(), and ~AP_Airspeed_MS4525().

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_measure()

void AP_Airspeed_MS4525::_measure ( )

private

Definition at line 87 of file AP_Airspeed_MS4525.cpp.

Referenced by _timer(), init(), and ~AP_Airspeed_MS4525().

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_timer()

void AP_Airspeed_MS4525::_timer ( )

private

Definition at line 214 of file AP_Airspeed_MS4525.cpp.

Referenced by init(), and ~AP_Airspeed_MS4525().

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_voltage_correction()

void AP_Airspeed_MS4525::_voltage_correction ( float &  diff_press_pa, float &  temperature  )

private

correct for 5V rail voltage if the system_power ORB topic is available

See http://uav.tridgell.net/MS4525/MS4525-offset.png for a graph of offset versus voltage for 3 sensors

Definition at line 197 of file AP_Airspeed_MS4525.cpp.

Referenced by _collect(), and ~AP_Airspeed_MS4525().

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get_differential_pressure()

bool AP_Airspeed_MS4525::get_differential_pressure ( float &  pressure )

overridevirtual

Implements AP_Airspeed_Backend.

Definition at line 228 of file AP_Airspeed_MS4525.cpp.

Referenced by ~AP_Airspeed_MS4525().

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get_temperature()

bool AP_Airspeed_MS4525::get_temperature ( float &  temperature )

overridevirtual

Implements AP_Airspeed_Backend.

Definition at line 246 of file AP_Airspeed_MS4525.cpp.

Referenced by ~AP_Airspeed_MS4525().

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init()

bool AP_Airspeed_MS4525::init ( void  )

overridevirtual

Implements AP_Airspeed_Backend.

Definition at line 38 of file AP_Airspeed_MS4525.cpp.

Referenced by ~AP_Airspeed_MS4525().

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Member Data Documentation

_dev

AP_HAL::OwnPtr<AP_HAL::I2CDevice> AP_Airspeed_MS4525::_dev

private

Definition at line 61 of file AP_Airspeed_MS4525.h.

Referenced by _collect(), _measure(), and init().

_last_sample_time_ms

uint32_t AP_Airspeed_MS4525::_last_sample_time_ms

private

Definition at line 59 of file AP_Airspeed_MS4525.h.

Referenced by _collect(), get_differential_pressure(), get_temperature(), and init().

_measurement_started_ms

uint32_t AP_Airspeed_MS4525::_measurement_started_ms

private

Definition at line 60 of file AP_Airspeed_MS4525.h.

Referenced by _collect(), _measure(), and _timer().

_press_count

uint32_t AP_Airspeed_MS4525::_press_count

private

Definition at line 56 of file AP_Airspeed_MS4525.h.

Referenced by _collect(), and get_differential_pressure().

_press_sum

float AP_Airspeed_MS4525::_press_sum

private

Definition at line 54 of file AP_Airspeed_MS4525.h.

Referenced by _collect(), and get_differential_pressure().

_pressure

float AP_Airspeed_MS4525::_pressure

private

Definition at line 58 of file AP_Airspeed_MS4525.h.

Referenced by get_differential_pressure().

_temp_count

uint32_t AP_Airspeed_MS4525::_temp_count

private

Definition at line 55 of file AP_Airspeed_MS4525.h.

Referenced by _collect(), and get_temperature().

_temp_sum

float AP_Airspeed_MS4525::_temp_sum

private

Definition at line 53 of file AP_Airspeed_MS4525.h.

Referenced by _collect(), and get_temperature().

_temperature

float AP_Airspeed_MS4525::_temperature

private

Definition at line 57 of file AP_Airspeed_MS4525.h.

Referenced by get_temperature().

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The documentation for this class was generated from the following files:

• libraries/AP_Airspeed/AP_Airspeed_MS4525.h
• libraries/AP_Airspeed/AP_Airspeed_MS4525.cpp