ch.unizh.ini.jaer.chip.retina
Class DVS128.Biasgen

java.lang.Object
  net.sf.jaer.biasgen.Biasgen
      ch.unizh.ini.jaer.chip.retina.DVS128.Biasgen

All Implemented Interfaces:

java.util.Observer, BiasgenHardwareInterface, BiasgenPreferences, ChipControlPanel, HardwareInterface

Enclosing class:

DVS128

public class DVS128.Biasgen
extends Biasgen
implements ChipControlPanel

Describes IPots on DVS128 retina chip. These are configured by a shift register as shown here:

This bias generator also offers an abstracted ChipControlPanel interface that is used for a simplified user interface.

Author:

tobi

Nested Class Summary

Nested classes/interfaces inherited from class net.sf.jaer.biasgen.Biasgen

Biasgen.HasPreference

Field Summary

float	MAX_DIFF_ON_CURRENT
float	MIN_DIFF_OFF_CURRENT
float	MIN_THRESHOLD_RATIO the minimum on/diff or diff/off current allowed by decreaseThreshold
float	RATIO the change in current from an increase* or decrease* call

Fields inherited from class net.sf.jaer.biasgen.Biasgen

controlPanel, hardwareInterface, potArray

Constructor Summary

DVS128.Biasgen(Chip chip)
Creates a new instance of Biasgen for DVS128 with a given hardware interface

Method Summary

javax.swing.JPanel	buildControlPanel() Builds the default control panel and returns it.
void	decreaseBandwidth()
void	decreaseRefractoryPeriod()
void	decreaseThreshold()
void	increaseBandwidth()
void	increaseRefractoryPeriod()
void	increaseThreshold()
void	moreOFFType()
void	moreONType()
void	sendConfiguration(DVS128.Biasgen biasgen) sends the ipot values over the hardware interface if there is not a batch edit occuring.

Methods inherited from class net.sf.jaer.biasgen.Biasgen

close, endBatchEdit, exportPreferences, flashConfiguration, formatConfigurationBytes, getChip, getControlPanel, getHardwareInterface, getIPotGroups, getMasterbias, getName, getNumPots, getPotArray, getPotByName, getPotByNumber, getTypeName, importPreferences, isBatchEditOccurring, isInitialized, isOpen, loadPreferences, open, putPref, putPref, putPref, putPref, putPref, resume, sendConfiguration, setBatchEditOccurring, setChip, setControlPanel, setHardwareInterface, setIPotGroups, setMasterbias, setName, setPotArray, setPowerDown, showUnitializedBiasesWarningDialog, startBatchEdit, storePreferences, suspend, toString, update

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.sf.jaer.biasgen.ChipControlPanel

getControlPanel

Field Detail

RATIO

public final float RATIO

the change in current from an increase* or decrease* call

See Also:

Constant Field Values

MIN_THRESHOLD_RATIO

public final float MIN_THRESHOLD_RATIO

the minimum on/diff or diff/off current allowed by decreaseThreshold

See Also:

Constant Field Values

MAX_DIFF_ON_CURRENT

public final float MAX_DIFF_ON_CURRENT

See Also:

Constant Field Values

MIN_DIFF_OFF_CURRENT

public final float MIN_DIFF_OFF_CURRENT

See Also:

Constant Field Values

Constructor Detail

DVS128.Biasgen

public DVS128.Biasgen(Chip chip)

Creates a new instance of Biasgen for DVS128 with a given hardware interface

Parameters:

chip - the chip this biasgen belongs to

Method Detail

sendConfiguration

public void sendConfiguration(DVS128.Biasgen biasgen)
                       throws HardwareInterfaceException

sends the ipot values over the hardware interface if there is not a batch edit occuring.

Parameters:

biasgen - the bias generator object. This parameter is necessary because the same method is used in the hardware interface, which doesn't know about the particular bias generator instance.

Throws:

HardwareInterfaceException - if there is a hardware error. If there is no interface, prints a message and just returns.

See Also:

Biasgen.startBatchEdit(), Biasgen.endBatchEdit()

increaseThreshold

public void increaseThreshold()

decreaseThreshold

public void decreaseThreshold()

increaseRefractoryPeriod

public void increaseRefractoryPeriod()

decreaseRefractoryPeriod

public void decreaseRefractoryPeriod()

increaseBandwidth

public void increaseBandwidth()

decreaseBandwidth

public void decreaseBandwidth()

moreONType

public void moreONType()

moreOFFType

public void moreOFFType()

buildControlPanel

public javax.swing.JPanel buildControlPanel()

Description copied from class: Biasgen

Builds the default control panel and returns it. This method builds a BiasgenPanel that encloses the PotArray in a PotPanel and the Masterbias in a MasterbiasPanel and returns a tabbed pane for these two components. Subclasses can override buildControlPanel to build their own control panel.

Overrides:

buildControlPanel in class Biasgen

Returns:

a new panel for controlling this bias generator functionally