adxl.c File Reference

Detailed Description

ADXL Analog Devices Accelormeter Utilities

Author:: Jörgen Birkler (birkler@yahoo.com)

Defines

#define ACOMP_ENABLE()
#define ACOMP_DISABLE()
#define ADXL_SELECT_X_AXIS()
#define ADXL_SELECT_Y_AXIS()
#define ADXL_IS_X_AXIS()
#define TIMER1_INPUT_CAPTURE_RISING_EDGE()
#define TIMER1_INPUT_CAPTURE_FALLING_EDGE()
#define TIMER1_INPUT_CAPTURE_IS_RISING_EDGE()
#define TIMER1_ENABLE_INPUT_CAPTURE_INTERRUPT()
#define TIMER1_ENABLE_OUTPUT_COMPARE_A_INTERRUPT()
#define TIMER1_DISABLE_INPUT_CAPTURE_INTERRUPT()
#define TIMER1_DISABLE_OUTPUT_COMPARE_A_INTERRUPT()
#define TIMER1_SET_OUTPUT_COMPARE_A(_value)
#define TIMER1_INIT()
#define TIMER1_CLEAR_COUNTER()
#define TIMER1_READ_COUNTER()
#define TIMER1_READ_INPUT_CAPTURE()
#define TIMER1_ENABLE_OVERFLOW_INTERRUPT()
#define TIMER1_CLK
#define TIMER1_TICKS_TO_uS(ticks)
#define TIMER1_GET_PRESCALER()
#define TIMER1_SET_PRESCALER(prescaler)
#define TIMER1_PRESCALER_CLOCK_OFF
#define TIMER1_PRESCALER_X1
#define TIMER1_PRESCALER_X8
#define TIMER1_PRESCALER_X64
#define TIMER1_PRESCALER_X256
#define TIMER1_PRESCALER_X1024
#define ADXL_PERIOD_FILTER_LOG2SIZE
#define ADXL_STABLE_MEASUREMENT_COUNT
#define ADXL_TIMERTICKS_OVERRUN

Typedefs

typedef FIR_FilterAcculatedSum_t ADXL_long_mdG_t

Functions

FIR_FILTER_DEFINE (periodFilter, ADXL_PERIOD_FILTER_LOG2SIZE)
FIR_FILTER_DEFINE (AxisXFilter, ADXL_PERIOD_FILTER_LOG2SIZE)
FIR_FILTER_DEFINE (AxisYFilter, ADXL_PERIOD_FILTER_LOG2SIZE)
INTERRUPT (SIG_INPUT_CAPTURE1)
INTERRUPT (SIG_OUTPUT_COMPARE1A)
void ADXL_PowerOn (void)
void ADXL_PowerOff (void)
void ADXL_SetCalibrationInfo (const ADXL_CalibrationInfo_t *const info_p)
void ADXL_ResetMeasuredCalibrationInfo (void)
const ADXL_CalibrationInfo_t * ADXL_GetMeasuredCalibrationInfo (void)
unsigned char ADXL_MeasurementAvailable (void)
ADXL_TimerTicks_t ADXL_GetPeriod (void)
ADXL_g_t ADXL_GetX (void)
ADXL_g_t ADXL_GetY (void)

Variables

volatile ADXL_TimerTicks_t AxisX
volatile ADXL_TimerTicks_t AxisY
volatile unsigned char validMeasurements
ADXL_CalibrationInfo_t CalibrationSet
ADXL_CalibrationInfo_t CalibrationMeasured
uint16_t TaTc

Define Documentation

#define ADXL_SELECT_X_AXIS ( )

Select x-axis (ICP).

#define ADXL_SELECT_Y_AXIS ( )

Select y-axis (Analog Comparator).

#define ADXL_IS_X_AXIS ( )

true if x-axis selected, false if y-axis is selected

#define ADXL_PERIOD_FILTER_LOG2SIZE

Size of floating average.

#define ADXL_STABLE_MEASUREMENT_COUNT

Number of measurements before values are stable.

#define ADXL_TIMERTICKS_OVERRUN

Max period ticks before overrun.

Typedef Documentation

typedef FIR_FilterAcculatedSum_t ADXL_long_mdG_t

Large value type used for calculations.

Variable Documentation

volatile ADXL_TimerTicks_t AxisX [static]

Current AxisX value.

volatile ADXL_TimerTicks_t AxisY [static]

Current AxisY value.

volatile unsigned char validMeasurements [static]

0 if measurements are valid

ADXL_CalibrationInfo_t CalibrationSet [static]

Set calibration info.

ADXL_CalibrationInfo_t CalibrationMeasured [static]

Current measure calibration values.

uint16_t TaTc [static]

Saved Ta or Tc.

Copyright 2002 Jörgen Birkler. For accelR8 Accelerometer on Mon Jan 19 21:43:19 2004 by Doxygen 1.3.5.