ch.unizh.ini.jaer.chip.cochlea
Class CochleaAMS1b.Biasgen

java.lang.Object
  net.sf.jaer.biasgen.Biasgen
      ch.unizh.ini.jaer.chip.cochlea.CochleaAMS1b.Biasgen

All Implemented Interfaces:

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

Enclosing class:

CochleaAMS1b

public class CochleaAMS1b.Biasgen
extends Biasgen
implements ChipControlPanel

Describes IPots on tmpdiff128 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

protected DAC

dac The DAC on the board.

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

controlPanel, hardwareInterface, potArray

Constructor Summary

CochleaAMS1b.Biasgen(Chip chip)
Creates a new instance of Biasgen for Tmpdiff128 with a given hardware interface

Method Summary

javax.swing.JPanel	buildControlPanel() Builds the default control panel and returns it.
void	initDAC()
boolean	isDACPowered() Returns the DAC powered state
void	loadPreferences() Loads preferences for the potArray and masterbias.
void	setDACPowered(boolean yes) Sets the VDACs on the board to be powered or high impedance output.
void	setHardwareInterface(BiasgenHardwareInterface hw) Assigns the HardwareInterface to this Biasgen.
void	storePreferences() Stores preferences to the Preferences node for the potArray and masterbias.
void	update(java.util.Observable observable, java.lang.Object object) The central point for communication with HW from biasgen.

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, open, putPref, putPref, putPref, putPref, putPref, resume, sendConfiguration, setBatchEditOccurring, setChip, setControlPanel, setIPotGroups, setMasterbias, setName, setPotArray, setPowerDown, showUnitializedBiasesWarningDialog, startBatchEdit, suspend, toString

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

dac

protected final DAC dac

The DAC on the board. Specified with 5V reference even though Vdd=3.3 because the internal 2.5V reference is used and so that the VPot controls display correct voltage.

Constructor Detail

CochleaAMS1b.Biasgen

public CochleaAMS1b.Biasgen(Chip chip)

Creates a new instance of Biasgen for Tmpdiff128 with a given hardware interface

Parameters:

chip - the chip this biasgen belongs to

Method Detail

loadPreferences

public void loadPreferences()

Description copied from class: Biasgen

Loads preferences for the potArray and masterbias. Subclasses should override this method to load additional information.

Specified by:

loadPreferences in interface BiasgenPreferences

Overrides:

loadPreferences in class Biasgen

storePreferences

public void storePreferences()

Description copied from class: Biasgen

Stores preferences to the Preferences node for the potArray and masterbias. Subclasses must override this method to store additional information!!! For example, a subclass that defines additional configuration information should call storePreferences explicitly for additional configuration.

Specified by:

storePreferences in interface BiasgenPreferences

Overrides:

storePreferences in class Biasgen

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:

the default control panel

setHardwareInterface

public void setHardwareInterface(BiasgenHardwareInterface hw)

Description copied from class: Biasgen

Assigns the HardwareInterface to this Biasgen. If non-null, the configuration information (e.g. biases) are also sent to the device.

Overrides:

setHardwareInterface in class Biasgen

Parameters:

hw - the hardware interface.

update

public void update(java.util.Observable observable,
                   java.lang.Object object)

The central point for communication with HW from biasgen. All objects in Biasgen are Observables and add Biasgen.this as Observer. They then call notifyObservers when their state changes.

Specified by:

update in interface java.util.Observer

Overrides:

update in class Biasgen

Parameters:

observable - IPot, Scanner, etc

object - not used at present

initDAC

public void initDAC()
             throws HardwareInterfaceException

Throws:

HardwareInterfaceException

setDACPowered

public void setDACPowered(boolean yes)
                   throws HardwareInterfaceException

Sets the VDACs on the board to be powered or high impedance output. This is a global operation.

Parameters:

yes - true to power up DACs

Throws:

HardwareInterfaceException

isDACPowered

public boolean isDACPowered()

Returns the DAC powered state

Returns:

true if powered up