s_accelerometer.h File Reference

#include "compiler.h"

Data Structures
struct	Avr32_acc_t
struct	xyz_t
	All 3-axis values from ADC conversion. More...

Macros
#define	ACC_1G   (205 >> ACC_SHIFT)
#define	ACC_CALIB_X   0
#define	ACC_CALIB_Y   0
#define	ACC_CALIB_Z   0
#define	ACC_MAX   ( ACC_ZERO + ACC_1G )
#define	ACC_MIN   ( ACC_ZERO - ACC_1G )
#define	ACC_QUIET_HI   (int) ( 1.4 * ACC_1G * ACC_1G )
#define	ACC_QUIET_LO   (int) ( 0.6 * ACC_1G * ACC_1G )
#define	ACC_SHIFT   2
#define	ACC_TRIG_X0   (int) ( ACC_ZERO_X - SIN15 * ACC_1G )
#define	ACC_TRIG_X1   (int) ( ACC_ZERO_X + SIN15 * ACC_1G )
#define	ACC_TRIG_Y0   (int) ( ACC_ZERO_Y - SIN15 * ACC_1G )
#define	ACC_TRIG_Y1   (int) ( ACC_ZERO_Y + SIN15 * ACC_1G )
#define	ACC_TRIG_Z_BOT   (int) ( ACC_ZERO_Z + SIN60 * ACC_1G )
#define	ACC_TRIG_Z_TOP   (int) ( ACC_ZERO_Z - SIN75 * ACC_1G )
#define	ACC_ZERO   (512 >> ACC_SHIFT)
#define	ACC_ZERO_X   ( ACC_ZERO + ACC_CALIB_X )
#define	ACC_ZERO_Y   ( ACC_ZERO + ACC_CALIB_Y )
#define	ACC_ZERO_Z   ( ACC_ZERO + ACC_CALIB_Z )
#define	SIN0   0
#define	SIN10   0.174
#define	SIN15   0.259
#define	SIN20   0.342
#define	SIN25   0.423
#define	SIN30   0.5
#define	SIN35   0.574
#define	SIN40   0.643
#define	SIN45   0.707
#define	SIN5   0.087
#define	SIN50   0.766
#define	SIN55   0.819
#define	SIN60   0.866
#define	SIN65   0.906
#define	SIN70   0.94
#define	SIN75   0.966
#define	SIN80   0.985
#define	SIN85   0.996
#define	SIN90   1

Functions
void	accelerometer_init ()
	Init the accelerometer driver. More...
void	accelerometer_measure (U32 angle, char *buf)
	Measures the accelerometer values and converts them to X and Y angles. More...

#define ACC_1G   (205 >> ACC_SHIFT)

Referenced by is_acc_abs_angle_x(), and is_acc_abs_angle_y().

#define ACC_CALIB_X   0

#define ACC_CALIB_Y   0

#define ACC_CALIB_Z   0

#define ACC_MAX   ( ACC_ZERO + ACC_1G )

#define ACC_MIN   ( ACC_ZERO - ACC_1G )

#define ACC_QUIET_HI   (int) ( 1.4 * ACC_1G * ACC_1G )

Referenced by acc_slow(), and is_acc_slow().

#define ACC_QUIET_LO   (int) ( 0.6 * ACC_1G * ACC_1G )

Referenced by acc_slow(), and is_acc_slow().

#define ACC_SHIFT   2

Referenced by acc_get_value().

#define ACC_TRIG_X0   (int) ( ACC_ZERO_X - SIN15 * ACC_1G )

Referenced by is_acc_right().

#define ACC_TRIG_X1   (int) ( ACC_ZERO_X + SIN15 * ACC_1G )

Referenced by is_acc_left().

#define ACC_TRIG_Y0   (int) ( ACC_ZERO_Y - SIN15 * ACC_1G )

Referenced by is_acc_up().

#define ACC_TRIG_Y1   (int) ( ACC_ZERO_Y + SIN15 * ACC_1G )

Referenced by is_acc_down().

#define ACC_TRIG_Z_BOT   (int) ( ACC_ZERO_Z + SIN60 * ACC_1G )

Referenced by is_acc_meuh(), and is_acc_topdown().

#define ACC_TRIG_Z_TOP   (int) ( ACC_ZERO_Z - SIN75 * ACC_1G )

Referenced by is_acc_meuh().

#define ACC_ZERO   (512 >> ACC_SHIFT)

#define ACC_ZERO_X   ( ACC_ZERO + ACC_CALIB_X )

Referenced by print_mouse().

#define ACC_ZERO_Y   ( ACC_ZERO + ACC_CALIB_Y )

Referenced by print_mouse().

#define ACC_ZERO_Z   ( ACC_ZERO + ACC_CALIB_Z )

#define SIN0   0

#define SIN10   0.174

#define SIN15   0.259

#define SIN20   0.342

#define SIN25   0.423

#define SIN30   0.5

#define SIN35   0.574

#define SIN40   0.643

#define SIN45   0.707

#define SIN5   0.087

#define SIN50   0.766

#define SIN55   0.819

#define SIN60   0.866

#define SIN65   0.906

#define SIN70   0.94

#define SIN75   0.966

#define SIN80   0.985

#define SIN85   0.996

#define SIN90   1

void accelerometer_init

(

)

Init the accelerometer driver.

References adc, adc_configure(), and gpio_enable_module_pin().

Referenced by device_full_custom_task_init().

void accelerometer_measure	(	U32	angle,
		char *	buf
	)

Measures the accelerometer values and converts them to X and Y angles.

Parameters

angle	Boolean (0 for X-angle, 1 for Y-angle)
buf	char buffer in which the light sensor value is stored.

References acc_get_value(), accelerometer_action_x(), accelerometer_action_y(), adc, adc_channel_x, adc_channel_y, adc_channel_z, Avr32_acc_t::ak, Avr32_acc_t::ak2, Avr32_acc_t::g, Avr32_acc_t::k, Avr32_acc_t::m, sprintf(), xyz_t::x, xyz_diff(), xyz_sumsq(), xyz_t::y, and xyz_t::z.

Referenced by device_full_custom_task().