hades.models.pic
Class PicEeprom

java.lang.Object
  hades.models.pic.PicEeprom

All Implemented Interfaces:

PicMemory

public class PicEeprom

extends java.lang.Object

implements PicMemory

PicEeprom - The Eeprom-data-memory implemented in Microchip-microcontrollers

Field Summary

protected int	bits
protected int	bytes
protected PicReg	eeadr
protected PicReg	eecon1
protected PicReg	eedata
protected long[]	eeprom
protected java.lang.String	filename
protected long	maxWord
protected boolean	nextWrite

Constructor Summary

PicEeprom(int size, int bitsPerWord, PicReg newEedata, PicReg newEeadr, PicReg newEecon1)
Constructor with the opportunity to change the size and the number of bits per word the Eprom is using

Method Summary

java.lang.String	getFilename()
int	getMemorySize() getMemorySize reports the size of the eprom in words
int	getWordWidth() getWordWidth reports the width of one word in bits
boolean	load(java.lang.Object parent, java.lang.String resourcename) load the PicEprom contents from a resource called "resourcename" and belonging to SimObject "parent".
void	load(java.lang.String name, java.lang.String dir) Open the given filename and load the content into the EEPROM.
boolean	loadHEX(java.io.InputStream is)
boolean	loadROM(java.io.InputStream is)
void	por() Power-on-reset, just call reset
void	readEeprom() Read a word from the eeprom: address is taken from eeadr and value will be written to eedata
int	readMemory(int address) Read a word, from interface PicMemory
void	reset() Reset, report aborted write requests
boolean	resize(int i, int j)
void	save(java.lang.String name, java.lang.String dir)
void	setFilename(java.lang.String name)
void	setFilename(java.lang.String name, java.lang.String dir)
void	wakeup() Is called from every wakeup event in Pic16C84 and performs the write operation.
void	writeEeprom() Write a word to the eeprom: eepromWakeup() will write, this method informs eepromWakeup() to write
void	writeMemory(int address, int word) Write a word, from interface PicMemory

Methods inherited from class java.lang.Object

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

Field Detail

bits

protected int bits

maxWord

protected long maxWord

bytes

protected int bytes

eeprom

protected long[] eeprom

filename

protected java.lang.String filename

eedata

protected PicReg eedata

eeadr

protected PicReg eeadr

eecon1

protected PicReg eecon1

nextWrite

protected boolean nextWrite

Constructor Detail

PicEeprom

public PicEeprom(int size,
                 int bitsPerWord,
                 PicReg newEedata,
                 PicReg newEeadr,
                 PicReg newEecon1)

Constructor with the opportunity to change the size and the number of bits per word the Eprom is using

Method Detail

por

public void por()

Power-on-reset, just call reset

reset

public void reset()

Reset, report aborted write requests

resize

public boolean resize(int i,
                      int j)

getMemorySize

public int getMemorySize()

getMemorySize reports the size of the eprom in words

Specified by:

getMemorySize in interface PicMemory

getWordWidth

public int getWordWidth()

getWordWidth reports the width of one word in bits

Specified by:

getWordWidth in interface PicMemory

readMemory

public int readMemory(int address)

Read a word, from interface PicMemory

Specified by:

readMemory in interface PicMemory

writeMemory

public void writeMemory(int address,
                        int word)

Write a word, from interface PicMemory

Specified by:

writeMemory in interface PicMemory

setFilename

public void setFilename(java.lang.String name)

setFilename

public void setFilename(java.lang.String name,
                        java.lang.String dir)

getFilename

public java.lang.String getFilename()

load

public void load(java.lang.String name,
                 java.lang.String dir)

Open the given filename and load the content into the EEPROM. Format: Hex-Numbers seperated by spaces and line-feeds are stored beginning by address 0. If a number ends with a colon, it is the address the following numbers are stored at.

load

public boolean load(java.lang.Object parent,
                    java.lang.String resourcename)

load the PicEprom contents from a resource called "resourcename" and belonging to SimObject "parent". This method uses DesignManager to lookup an InputStream for the resource; if the name ends with ".hex" we expect Intel HEX-format data, and raw ".rom" data otherwise.

loadROM

public boolean loadROM(java.io.InputStream is)

loadHEX

public boolean loadHEX(java.io.InputStream is)

save

public void save(java.lang.String name,
                 java.lang.String dir)

writeEeprom

public void writeEeprom()

Write a word to the eeprom: eepromWakeup() will write, this method informs eepromWakeup() to write

readEeprom

public void readEeprom()

Read a word from the eeprom: address is taken from eeadr and value will be written to eedata

wakeup

public void wakeup()

Is called from every wakeup event in Pic16C84 and performs the write operation. The address is taken from eeadr, the value to be written is taken from eedata. After the completion some bits in eecon1 get set