eeprom.c File Reference

#include "t89c51cc02.h"
#include "datatypes.h"
#include "eeprom.h"

Go to the source code of this file.

Functions
BYTE	EEPROM_read (BYTE address)
	read a byte from the EEPROM
void	EEPROM_write (BYTE d, BYTE address)
	write a byte into the EEPROM latches
void	EEPROM_flush ()
	writes latched EEPROM contents to the EEPROM
Variables
unsigned char xdata *	eepromptr

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Detailed Description

Definition in file eeprom.c.

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Function Documentation

void EEPROM_flush (  void   )

writes latched EEPROM contents to the EEPROM Prepare the new contents with EEPROM_write before writing them to the EEPROM. Interrupts are disabled (and restored afterwards) during the actual EEPROM write. Definition at line 77 of file eeprom.c. References EEPROM_wait.

BYTE EEPROM_read (  BYTE  address  )

read a byte from the EEPROM A byte is read from the EEPROM at the given EEPROM address. This routine is limited for reading the first 256 Bytes of the EEPROM memory. Parameters: address  address offset into EEPROM to read from Returns: value of EEPROM at the given address Definition at line 23 of file eeprom.c. References EEPROM_wait, and eepromptr. Referenced by Command_ReadDefaultConfiguration().

void EEPROM_write (  BYTE  d, BYTE  address )

write a byte into the EEPROM latches This function only latches data but the data is not written to the EEPROM. Execute EEPROM_flush to actually write the new contents into the EEPROM. Parameters: d  data byte to write address  address of EEPROM cell Definition at line 54 of file eeprom.c. References EEPROM_wait, and eepromptr.

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Variable Documentation

unsigned char xdata* eepromptr

address pointer into EEPROM Definition at line 12 of file eeprom.c. Referenced by EEPROM_read(), and EEPROM_write().

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