ch.unizh.ini.jaer.projects.opticalflow.chip
Class Motion18

java.lang.Object
  java.util.Observable
      net.sf.jaer.chip.Chip
          net.sf.jaer.chip.Chip2D
              ch.unizh.ini.jaer.projects.opticalflow.chip.Motion18

public class Motion18
extends Chip2D

Describes the motion18 chip from Alan Stocker with Pit Gebbers board wrapped around it.

Author:

tobi

Nested Class Summary

class

Motion18.Motion18Biasgen describes the biases on the chip

Field Summary

static DAC	dac The DAC on the board
static byte	FRAME_START_MARKER A "magic byte" marking the start of each frame
MotionData	lastMotionData can be used to hold reference to last motion data
static int	NUM_CHANNELS
static int	NUM_COLUMNS
static int	NUM_MOTION_PIXELS
static int	NUM_ROWS
static float	VDD power supply for motion chip, volts

Fields inherited from class net.sf.jaer.chip.Chip2D

canvas, filterFrame, numCellTypes, sizeX, sizeY

Fields inherited from class net.sf.jaer.chip.Chip

biasgen, hardwareInterface, log, name

Constructor Summary

Motion18()
Creates a new instance of Motion18

Method Summary

static float	convert10bitToFloat(int value) Converts 10 bits signed ADC output value to a float ranged 0-1.
int	getCaptureMode() returns the current acquisition mode - some combination of bits from MotionData
static boolean	isBorder(int x, int y)
void	setCaptureMode(int acquisitionMode) sets the acquisition mode.

Methods inherited from class net.sf.jaer.chip.Chip2D

getCanvas, getMaxSize, getMinSize, getNumCells, getNumPixels, getPixelHeightUm, getPixelWidthUm, getRenderer, getSizeX, getSizeY, setCanvas, setName, setPixelHeightUm, setPixelWidthUm, setRenderer, setSizeX, setSizeY

Methods inherited from class net.sf.jaer.chip.Chip

getBiasgen, getDescription, getHardwareInterface, getLastData, getName, getPreferredHardwareInterface, getPrefs, getRemoteControl, setBiasgen, setHardwareInterface, setLastData, setPreferredHardwareInterface, setPrefs, setRemoteControl

Methods inherited from class java.util.Observable

addObserver, clearChanged, countObservers, deleteObserver, deleteObservers, hasChanged, notifyObservers, notifyObservers, setChanged

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

VDD

public static final float VDD

power supply for motion chip, volts

See Also:

Constant Field Values

NUM_ROWS

public static final int NUM_ROWS

See Also:

Constant Field Values

NUM_COLUMNS

public static final int NUM_COLUMNS

See Also:

Constant Field Values

NUM_MOTION_PIXELS

public static final int NUM_MOTION_PIXELS

See Also:

Constant Field Values

NUM_CHANNELS

public static final int NUM_CHANNELS

See Also:

Constant Field Values

FRAME_START_MARKER

public static final byte FRAME_START_MARKER

A "magic byte" marking the start of each frame

See Also:

Constant Field Values

lastMotionData

public MotionData lastMotionData

can be used to hold reference to last motion data

dac

public static DAC dac

The DAC on the board

Constructor Detail

Motion18

public Motion18()

Creates a new instance of Motion18

Method Detail

isBorder

public static boolean isBorder(int x,
                               int y)

convert10bitToFloat

public static float convert10bitToFloat(int value)

Converts 10 bits signed ADC output value to a float ranged 0-1. 0 represents most negative value, .5 is zero value, 1 is most positive value.

Parameters:

value - the 10 bit value.

Returns:

the float value, ranges from 0 to 1023/1024 inclusive.

getCaptureMode

public int getCaptureMode()

returns the current acquisition mode - some combination of bits from MotionData

Returns:

mode bits

setCaptureMode

public void setCaptureMode(int acquisitionMode)

sets the acquisition mode. Sends a command to the hardware interface to set the data that is sent from the chip, if the hardware interface exists and is open.

Parameters:

acquisitionMode - a bit mask telling the hardware what to acquire from the chip