hades.models.dcf77
Class Dcf77Sender

java.lang.Object
  hades.simulator.SimObject
      hades.models.dcf77.Dcf77Sender

All Implemented Interfaces:

java.lang.Cloneable, ContextToolTip, java.io.Serializable, Simulatable, Wakeable

public class Dcf77Sender

extends SimObject

implements Wakeable

A class that models a sender for the German standard normal-time code, as broadcast worldwide by the German DCF 77 sender at 77 KHz.

The code consists of a sequence of 59 bits broadcast every second, which code for the seconds, minutes, hours, day, month, year (and difference to GMT) of the next minute. A one is coded as a 200 msec. pause of a 1 sec. period in the 77 KHz signal, while a zero is coded as a 100 msec. pause. After transmitting 59 bits, no pause is broadcast for the 60th bit, to indicate that the data will become valid on the first bit (pause!) of the next minute.

This Java model is based on a VHDL model (C) 1996 by Andreas M?der, University of Hamburg, maeder@informatik.uni-hamburg.de

See Also:

Serialized Form

Nested Class Summary

(package private) class	Dcf77Sender.DateFormatter
(package private) class	Dcf77Sender.TimeFormatter

Field Summary

(package private) Label	datelabel
(package private) PortStdLogic1164	port_dcf
(package private) Signal	signal_dcf
(package private) SimKernel	simulator
(package private) Label	timelabel
(package private) StdLogic1164	value_0
(package private) StdLogic1164	value_1
(package private) StdLogic1164	value_X

Fields inherited from class hades.simulator.SimObject

classloader, console, debug, editor, name, parent, ports, propertySheet, symbol, versionId, visible

Constructor Summary

Dcf77Sender()

Method Summary

void	configure() create and display a 'ConfigDialog' to set the parameters for a SimObject.
void	elaborate(java.lang.Object arg) elaborate(): unlike most other HADES models, the Dcf77Sender is elaborated even if it's output signal is (yet) null.
void	encodeTime()
int	getDay()
int	getHours()
int	getMinutes()
int	getMonth()
double	getNoise()
int	getSeconds()
java.lang.String	getToolTip(java.awt.Point position, long millis) construct a tool tip message (with the timing parameters)
int	getWeekday()
int	getYear()
boolean	hackToCheckWhetherDeleted() ugly utility method to decide whether this component has been deleted by the user (return true) or is still alive (return false).
void	incrementTime()
boolean	initialize(java.lang.String s) initialize the time to send from a String, which should contain the following data:
void	sendTime()
void	setDay(int i)
void	setDay(java.lang.String s)
void	setHours(int i)
void	setHours(java.lang.String s)
void	setMinutes(int i)
void	setMinutes(java.lang.String s)
void	setMonth(int i)
void	setMonth(java.lang.String s)
void	setNoise(double d)
void	setNoise(java.lang.String s)
void	setSeconds(int i)
void	setSeconds(java.lang.String s)
void	setWeekday(int i)
void	setWeekday(java.lang.String s)
void	setYear(int i)
void	setYear(java.lang.String s)
java.lang.String	toString() generate a textual represenation including class name, full Hades instance name, and the current DCF77 model time.
void	wakeup(java.lang.Object arg) one second has elapsed.
void	write(java.io.PrintWriter ps)

Methods inherited from class hades.simulator.SimObject

constructDynamicSymbol, copy, evaluate, getBindkey, getClassLoader, getDebug, getEditor, getExternalResources, getFullName, getName, getParent, getPort, getPorts, getPropertySheet, getResourceAsStream, getSimulator, getSymbol, getSymbolResourceName, getVersionId, isVisible, keyPressed, message, mousePressed, needsDynamicSymbol, needsExternalResources, setClassLoader, setConsole, setDebug, setEditor, setName, setParent, setPorts, setSimulator, setSymbol, setVersionId, setVisible, tearDown

Methods inherited from class java.lang.Object

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

Methods inherited from interface hades.simulator.Simulatable

evaluate, message

Field Detail

value_X

StdLogic1164 value_X

value_0

StdLogic1164 value_0

value_1

StdLogic1164 value_1

port_dcf

PortStdLogic1164 port_dcf

signal_dcf

Signal signal_dcf

simulator

SimKernel simulator

timelabel

Label timelabel

datelabel

Label datelabel

Constructor Detail

Dcf77Sender

public Dcf77Sender()

Method Detail

initialize

public boolean initialize(java.lang.String s)

initialize the time to send from a String, which should contain the following data:

     versionId hours mins seconds day month year weekday noise
 

Overrides:

initialize in class SimObject

write

public void write(java.io.PrintWriter ps)

Overrides:

write in class SimObject

getSeconds

public int getSeconds()

getMinutes

public int getMinutes()

getHours

public int getHours()

getDay

public int getDay()

getWeekday

public int getWeekday()

getMonth

public int getMonth()

getYear

public int getYear()

setSeconds

public void setSeconds(int i)

setMinutes

public void setMinutes(int i)

setHours

public void setHours(int i)

setDay

public void setDay(int i)

setWeekday

public void setWeekday(int i)

setMonth

public void setMonth(int i)

setYear

public void setYear(int i)

setSeconds

public void setSeconds(java.lang.String s)

setMinutes

public void setMinutes(java.lang.String s)

setHours

public void setHours(java.lang.String s)

setDay

public void setDay(java.lang.String s)

setWeekday

public void setWeekday(java.lang.String s)

setMonth

public void setMonth(java.lang.String s)

setYear

public void setYear(java.lang.String s)

getNoise

public double getNoise()

setNoise

public void setNoise(double d)

setNoise

public void setNoise(java.lang.String s)

configure

public void configure()

Description copied from class: SimObject

create and display a 'ConfigDialog' to set the parameters for a SimObject. The default ConfigDialog for the base class (SimObject) itself is empty except for the 'instance name' of the SimObject.

Overrides:

configure in class SimObject

elaborate

public void elaborate(java.lang.Object arg)

elaborate(): unlike most other HADES models, the Dcf77Sender is elaborated even if it's output signal is (yet) null.

Specified by:

elaborate in interface Simulatable

Overrides:

elaborate in class SimObject

wakeup

public void wakeup(java.lang.Object arg)

one second has elapsed. Send the next bit and update the display.

Specified by:

wakeup in interface Wakeable

Parameters:

arg - - unused argument

hackToCheckWhetherDeleted

public boolean hackToCheckWhetherDeleted()

ugly utility method to decide whether this component has been deleted by the user (return true) or is still alive (return false).

FIXME: bad hack due to major Hades software design flaw: the current implementation of wakeup() does not pass through the WakeupEvent source; therefore, there is no way to get deleteAllEventsFromSource working. This in turn means that we have no "official" way to check whether this Dcf77Sender has been deleted from its parent Design and should stop sending events and waking itself again...

encodeTime

public void encodeTime()

sendTime

public void sendTime()

incrementTime

public void incrementTime()

getToolTip

public java.lang.String getToolTip(java.awt.Point position,
                                   long millis)

construct a tool tip message (with the timing parameters)

Specified by:

getToolTip in interface ContextToolTip

Overrides:

getToolTip in class SimObject

toString

public java.lang.String toString()

generate a textual represenation including class name, full Hades instance name, and the current DCF77 model time.

Overrides:

toString in class SimObject