aoa_pwm.c File Reference

Angle of Attack sensor on PWM. More...

#include "modules/sensors/aoa_pwm.h"
#include "mcu_periph/pwm_input.h"
#include "messages.h"
#include "subsystems/datalink/downlink.h"
#include "generated/airframe.h"

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Macros
#define	AOA_PWM_PERIOD   4096
	Default to a 12 bit PWM sensor. More...
#define	AOA_PWM_OFFSET   1
	Some sensor may need an initial PWM offset (1 usec in the case of an MA3 sensor) More...
#define	AOA_ANGLE_OFFSET   M_PI
	Default offset value (assuming 0 AOA is in the middle of the range) More...
#define	AOA_OFFSET   0.0f
	Default extra offset that can be ajusted from settings. More...
#define	AOA_FILTER   0.0f
	Default filter value. More...
#define	AOA_SENS   ((2.0f*M_PI)/AOA_PWM_PERIOD)
	Default sensitivity (2*pi on a PWM of period AOA_PWM_PERIOD) More...
#define	AOA_SIGN   1
#define	SEND_SYNC_AOA   TRUE
#define	LOG_AOA   FALSE

Functions
void	aoa_pwm_init (void)
void	aoa_pwm_update (void)

Variables
struct Aoa_Pwm	aoa_pwm

Detailed Description

Angle of Attack sensor on PWM.

Author

Jean-François Erdelyi SENSOR, exemple : US DIGITAL MA3-P12-125-B

See also

http://www.usdigital.com/products/encoders/absolute/rotary/shaft/ma3

Definition in file aoa_pwm.c.

Macro Definition Documentation

#define AOA_ANGLE_OFFSET   M_PI

Default offset value (assuming 0 AOA is in the middle of the range)

Definition at line 56 of file aoa_pwm.c.

Referenced by aoa_pwm_update().

#define AOA_FILTER   0.0f

Default filter value.

Definition at line 64 of file aoa_pwm.c.

Referenced by aoa_pwm_init().

#define AOA_OFFSET   0.0f

Default extra offset that can be ajusted from settings.

Definition at line 60 of file aoa_pwm.c.

Referenced by aoa_pwm_init().

#define AOA_PWM_OFFSET   1

Some sensor may need an initial PWM offset (1 usec in the case of an MA3 sensor)

Definition at line 52 of file aoa_pwm.c.

Referenced by aoa_pwm_update().

#define AOA_PWM_PERIOD   4096

Default to a 12 bit PWM sensor.

Definition at line 48 of file aoa_pwm.c.

#define AOA_SENS   ((2.0f*M_PI)/AOA_PWM_PERIOD)

Default sensitivity (2*pi on a PWM of period AOA_PWM_PERIOD)

Definition at line 68 of file aoa_pwm.c.

Referenced by aoa_pwm_init().

#define AOA_SIGN   1

Definition at line 74 of file aoa_pwm.c.

Referenced by aoa_pwm_update().

#define LOG_AOA   FALSE

Definition at line 82 of file aoa_pwm.c.

#define SEND_SYNC_AOA   TRUE

Definition at line 78 of file aoa_pwm.c.

Function Documentation

void aoa_pwm_init

(

void

)

Definition at line 97 of file aoa_pwm.c.

References Aoa_Pwm::angle, AOA_FILTER, AOA_OFFSET, aoa_pwm, AOA_SENS, DefaultPeriodic, FALSE, Aoa_Pwm::filter, log_started, Aoa_Pwm::offset, Aoa_Pwm::raw, register_periodic_telemetry(), and Aoa_Pwm::sens.

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void aoa_pwm_update

(

void

)

Definition at line 112 of file aoa_pwm.c.

References Aoa_Pwm::angle, Aoa_Adc::angle, aoa_adc, AOA_ANGLE_OFFSET, aoa_pwm, AOA_PWM_OFFSET, AOA_SIGN, DefaultChannel, DefaultDevice, Aoa_Pwm::filter, get_pwm_input_duty_in_usec(), log_started, Aoa_Pwm::offset, Aoa_Pwm::raw, Aoa_Pwm::sens, stateSetAngleOfAttack_f(), and TRUE.

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Variable Documentation

struct Aoa_Pwm aoa_pwm

Definition at line 85 of file aoa_pwm.c.

Referenced by aoa_pwm_init(), and aoa_pwm_update().