STC11F02E_EEPROM header file

/*****File Function : STC11F02E_EEPROM Read and Write *****/
/*****Program Author : ZhengWen(ClimberWin) *****/
/*****Compile Date : 2009/3/3 *****/
/*****Edition Info : V1.0 *****/
/*****************************************************************/
/*****Amend Date : 2009.3.3 *****/
/*****Modified content: Modify the read and write subroutines to make them more concise********/
/*****************************************************************/
#ifndef __STC11FXX_EEPROM_CLIMBERWIN__
#define __STC11FXX_EEPROM_CLIMBERWIN__
#define uchar unsigned char
#define uint unsigned int          
#include
/***********************************************************/

/*****STC11FXX Special Function Register Definition********/
sfr isp_wdt = 0xc1;
sfr isp_data = 0xc2;
sfr isp_addrh = 0xc3;
sfr isp_addrl = 0xc4;
sfr isp_cmd = 0xc5;
sfr isp_trig = 0xc6;
sfr isp_contr = 0xc7;
/*********************************************/

/***************STC11FXX sector erase program****************************/
void STC89CXX_EEPROM_Erase(unsigned char t_addr)
{
    isp_addrh = t_addr; //It is not necessary that any byte in the sector is the sector address, no need for the first address, the MCU will handle it by itself
    isp_addrl = 0;
    EA = 0; //Disable interrupt
    isp_contr = 0x81;      
    isp_cmd = 3; //Sector erase, to make a byte empty, must erase 1 sector
    isp_trig = 0x5a; //First send 0x5a and then send 0xa5 ISP/IAP trigger register, this is required every time
    isp_trig = 0xa5; //After sending 0xa5, ISP/IAP is immediately triggered to start
    _nop_();
    _nop_();
    isp_contr = 0;   
    isp_cmd = 0;
    isp_trig = 0;
    isp_addrh = 0;
    isp_addrl = 0;
   // EA = 1; // Enable interrupt
}
/***************************************************/

/***************STC11FXX_EEPROM byte write program****************************/

void STC89CXX_EEPROM_Char_Write(unsigned int Write_addr ,unsigned char Write_data )
{
      
        isp_data = Write_data ;
        isp_addrh = Write_addr/256; //Send high address
        isp_addrl = Write_addr%256; //Address low
        EA = 0; /* Disable interrupt*/
        isp_contr = 0x81;      
        isp_cmd = 2; //Send sector command
        isp_trig = 0x5a;;
        isp_trig = 0xa5;
        _nop_();
        _nop_();
        isp_contr = 0;              
        isp_cmd = 0;
        isp_trig = 0;
        isp_addrh = 0;
        isp_addrl = 0;        
       // EA = 1; /* Enable interrupt*/
   
}
/******************************************************************/

/***************STC11FXX_EEPROM byte reading program****************************/

STC89CXX_EEPROM_Char_Read(unsigned int Read_addr)
{
  
       
        isp_addrh = Read_addr/256; //Send high byte of address
        isp_addrl = Read_addr%256; //Send low byte of address (starting from 0 to num-1)
        EA = 0; /* Disable interrupt*/
        isp_contr = 0x81; /*20M, is 0x80 orl 1 */
        isp_cmd = 1; // 1 means byte read
        isp_trig = 0x5a; //Send 0x5a first and then 0xb9 ISP/IAP trigger register, this is required every time
        isp_trig = 0xa5; //ISP/IAP is triggered and started immediately after sending 0xa5_nop_
        (); //No instruction_nop_
        (); //No instruction
        isp_contr = 0; //Disable ISP/IAP operation
        isp_cmd = 0; //Remove ISP/IAP command
        isp_trig = 0; //Prevent ISP/IAP command from triggering by mistake
        isp_addrh = 0; //Address points to non-EEPROM address area to prevent misoperation
        isp_addrl = 0;        
      //EA = 1; /* Enable interrupt*/
        return(isp_data );
   
} 
/**************************************************************/

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

#endif