EEPROM.h

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 * Copyright (C) 2015 Sensorian
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#ifndef __EEPROM_H__
#define __EEPROM_H__

#include "bcm2835.h"

#define  EEPROM_ADDRESS         0x57

#define  EEPROM_WRITE           0xae       //  DEVICE ADDR for EEPROM (writes)   
#define  EEPROM_READ            0xaf       //  DEVICE ADDR for EEPROM (reads)  
#define  EEUNLOCK               0x09

#define  EEPROM_START           0x00
#define  EEPROM_END             0x7F

#define  EEPROM_PROTECTED_START 0xF0
#define  EEPROM_PROTECTED_END   0xF7

#define  BP0                    0x04
#define  BP1                    0x08

/************************* RTCC Memory map ****************************/

#define  EEPROM_WRITE           0xae       //  DEVICE ADDR for EEPROM (writes)   
#define  EEPROM_READ            0xaf       //  DEVICE ADDR for EEPROM (reads)  

#define  SRAM_PTR               0x20       //  pointer of the SRAM area (RTCC) 
#define  EEPROM_SREG            0xff       //  STATUS REGISTER in the  EEPROM

/*********************************************************************/

typedef enum PROTECTION {QUARTER = 0x01, 
                        HALF = 0x02,    
                        ALL = 0x03      
                        } ProtectionSettings_t;

#define TRUE    1
#define FALSE   0

/***************************Function definitions********************************************/

void            EEPROM_Write(unsigned char mem_address, unsigned char ee_data); 
void            EEPROM_WriteProtected(unsigned char mem_address, unsigned char ee_data);
unsigned char   EEPROM_Read(unsigned char mem_address); 
void            EEPROM_SetBlockProtection(ProtectionSettings_t protSetting);
void            EEPROM_ReadPage(char mem_address,char *buffer);
void            EEPROM_WritePage(char mem_address,char *buffer);


#endif