eeprom.h File Reference

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

Go to the source code of this file.

Defines
#define	EEPROM_CANID_RECV   0
#define	EEPROM   CANID_SEND 2
#define	EEPROM_MONITOR   4
#define	EEPROM_DIRECTION   8
#define	EEPROM_BOUNDARY   12
#define	EEPROM_CHECKSUM   48
#define	EEPROM_wait()   while((EECON&MSK_EECON_EEBUSY)!=0)
Functions
BYTE	EEPROM_read (BYTE)
	read a byte from the EEPROM
void	EEPROM_write (BYTE, BYTE)
	write a byte into the EEPROM latches
void	EEPROM_flush (void)
	writes latched EEPROM contents to the EEPROM

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Detailed Description

Definition in file eeprom.h.

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Define Documentation

#define EEPROM   CANID_SEND 2

offset address for CAN sending ID inside of EEPROM Definition at line 17 of file eeprom.h.

#define EEPROM_BOUNDARY   12

offset address into EEPROM for storing boundary values for all sensors Definition at line 23 of file eeprom.h. Referenced by Command_ReadDefaultConfiguration().

#define EEPROM_CANID_RECV   0

offset address for CAN reception ID inside of EEPROM Definition at line 15 of file eeprom.h.

#define EEPROM_CHECKSUM   48

offset address into EEPROM to store the checksum Definition at line 25 of file eeprom.h. Referenced by Command_ReadDefaultConfiguration().

#define EEPROM_DIRECTION   8

offset address into EEPROM to store monitoring direction bits Definition at line 21 of file eeprom.h. Referenced by Command_ReadDefaultConfiguration().

#define EEPROM_MONITOR   4

offset address into EEPROM to store monitor flags Definition at line 19 of file eeprom.h. Referenced by Command_ReadDefaultConfiguration().

#define EEPROM_wait (   )     while((EECON&MSK_EECON_EEBUSY)!=0)

waits while the EEPROM is busy Definition at line 27 of file eeprom.h. Referenced by EEPROM_flush(), EEPROM_read(), and EEPROM_write().

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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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