单片机成长之路（51基础篇） - 021 STC89C51系列单片机内部EEPROM 驱动

　　最近又看了一下关于stc单片机的知识，感觉在使用中EEPROM是个经常用到的东西，特地学习了一下，给大家分享一下心得，如有不足，多多包涵，废话不多说，一图解千言，先上图：

/*--------------------------------------------------------------分界线-----------------------------------------------------------------------------------*/

main_eepprom.c

 #include <STC89C5xRC.H>

 #ifdef EEPROM

 #include "eeprom.h"

 #endif

 # define LEDALL P1

 void Delay(int n){

     unsigned int x;

     while (n--) {

         x = ;

         while (++x);

     }

 }

 void main(){

     char i;

     unsigned char temp,temp0,temp1;

     while (){

         for(i=; i<; i++){

             temp0 = STC_EEPROM_assign_Read(,);

             temp1 = STC_EEPROM_assign_Read(,);

             temp = (temp0 %)+((temp1/)*);

             LEDALL = ~temp;

             Delay();

             temp = 0x11<<i;

             temp0 = temp %;

             temp1 = (temp / )*;

             SCT_EEPROM_assign_Write(,,temp0);

             SCT_EEPROM_assign_Write(,,temp1);

             temp = ;

         }

     }

 }

Eeprom.h

 /*--------------------------------------------------------------------------

 eeprom.h

 --------------------------------------------------------------------------*/

 #ifndef __EEPROM_H__

 #define __EEPROM_H__

 #include "intrins.h"

 /*声明与IAP相关的SFR寄存器 */

 sfr IAP_DATA    =   0xE2;           //闪存数据寄存器

 sfr IAP_ADDRH   =   0xE3;           //Flash地址为HIGH

 sfr IAP_ADDRL   =   0xE4;           //Flash地址为LOW

 sfr IAP_CMD     =   0xE5;           //Flash命令寄存器

 sfr IAP_TRIG    =   0xE6;           //Flash命令触发器

 sfr IAP_CONTR     =     0xE7;           //闪存控制寄存器

 /*宏定义 ISP/IAP/EEPROM 命令*/

 #define EEPROM_CMD_IDLE        0    //支持

 #define EEPROM_CMD_READ        1    //字节读

 #define EEPROM_CMD_PROGRAM     2    //字节编程

 #define EEPROM_CMD_ERASE    3    //扇区擦除

 /*IAP_CONTR定义ISP / IAP / EEPROM 时钟操作常量*/

 #define EEPROM_ENABLE_IAP    0x80            //开启IAP功能

 //Clock 时钟配置

 #define Clock_20M_40M      0x00           //if SYSCLK<40MHz

 #define Clock_10M_20M      0x01           //if SYSCLK<20MHz

 #define Clock_5M_10M    0x02           //if SYSCLK<10MHz

 #define Clock_0M_5M     0x03           //if SYSCLK<5MHz

 //EEPROM的起始地址

 #define EEPROM_BASE_ADDRESS    0x0000

 //STC89C51系列

 #define STC89x51_EEPROM_Start_ADDRESS   EEPROM_BASE_ADDRESS+0x01000            //STC89C/LE51

 #define STC89x52_EEPROM_Start_ADDRESS   EEPROM_BASE_ADDRESS+0x02000            //STC89C/LE52

 #define STC89x53_EEPROM_Start_ADDRESS   EEPROM_BASE_ADDRESS+0x03000            //STC89C/LE53

 #define STC89x54_EEPROM_Start_ADDRESS   EEPROM_BASE_ADDRESS+0x04000            //STC89C/LE54

 #define STC89x58_EEPROM_Start_ADDRESS   EEPROM_BASE_ADDRESS+0x08000            //STC89C/LE58

 #define STC89x510_EEPROM_Start_ADDRESS    EEPROM_BASE_ADDRESS+0x0A000            //STC89C/LE510

 #define STC89x512_EEPROM_Start_ADDRESS  EEPROM_BASE_ADDRESS+0x0C000            //STC89C/LE512

 #define STC89x514_EEPROM_Start_ADDRESS    EEPROM_BASE_ADDRESS+0x0E000            //STC89C/LE514

 //STC89C51RC/RD+系列

 #define STC89x51RC_EEPROM_Start_ADDRESS       EEPROM_BASE_ADDRESS+0x01000            //STC89C/LE51RC/RD+

 #define STC89x52RC_EEPROM_Start_ADDRESS       EEPROM_BASE_ADDRESS+0x02000            //STC89C/LE52RC/RD+

 #define STC89x54RC_EEPROM_Start_ADDRESS       EEPROM_BASE_ADDRESS+0x04000            //STC89C/LE54RC/RD+

 #define STC89x58RC_EEPROM_Start_ADDRESS       EEPROM_BASE_ADDRESS+0x08000            //STC89C/LE58RC/RD+

 #define STC89x510RC_EEPROM_Start_ADDRESS    EEPROM_BASE_ADDRESS+0x0A000            //STC89C/LE510RC/RD+

 #define STC89x512RC_EEPROM_Start_ADDRESS      EEPROM_BASE_ADDRESS+0x0C000            //STC89C/LE512RC/RD+

 #define STC89x514RC_EEPROM_Start_ADDRESS    EEPROM_BASE_ADDRESS+0x0E000            //STC89C/LE514RC/RD+

 //STC90C51系列

 #define STC90x51_EEPROM_Start_ADDRESS   EEPROM_BASE_ADDRESS+0x01000            //STC90C/LE51

 #define STC90x52_EEPROM_Start_ADDRESS   EEPROM_BASE_ADDRESS+0x02000            //STC90C/LE52

 #define STC90x54_EEPROM_Start_ADDRESS   EEPROM_BASE_ADDRESS+0x04000            //STC90C/LE54

 #define STC90x58_EEPROM_Start_ADDRESS   EEPROM_BASE_ADDRESS+0x08000            //STC90C/LE58

 #define STC90x510_EEPROM_Start_ADDRESS    EEPROM_BASE_ADDRESS+0x0A000            //STC90C/LE510

 #define STC90x512_EEPROM_Start_ADDRESS  EEPROM_BASE_ADDRESS+0x0C000            //STC90C/LE512

 #define STC90x514_EEPROM_Start_ADDRESS    EEPROM_BASE_ADDRESS+0x0E000            //STC90C/LE514

 //STC90C51RC/RD+系列

 #define STC90x51RC_EEPROM_Start_ADDRESS       EEPROM_BASE_ADDRESS+0x01000            //STC90C/LE51RC/RD+

 #define STC90x52RC_EEPROM_Start_ADDRESS       EEPROM_BASE_ADDRESS+0x02000            //STC90C/LE52RC/RD+

 #define STC90x12RC_EEPROM_Start_ADDRESS       EEPROM_BASE_ADDRESS+0x03000            //STC90C/LE52RC/RD+

 #define STC90x54RC_EEPROM_Start_ADDRESS       EEPROM_BASE_ADDRESS+0x04000            //STC90C/LE54RC/RD+

 #define STC90x58RC_EEPROM_Start_ADDRESS       EEPROM_BASE_ADDRESS+0x08000            //STC90C/LE58RC/RD+

 #define STC90x510RC_EEPROM_Start_ADDRESS    EEPROM_BASE_ADDRESS+0x0A000            //STC90C/LE510RC/RD+

 #define STC90x512RC_EEPROM_Start_ADDRESS      EEPROM_BASE_ADDRESS+0x0C000            //STC90C/LE512RC/RD+

 #define STC90x514RC_EEPROM_Start_ADDRESS    EEPROM_BASE_ADDRESS+0x0E000            //STC90C/LE514RC/RD+

 //STC12xx052AD系列

 #define STC12xx052AD_EEPROM_Start_ADDRESS       EEPROM_BASE_ADDRESS+0x00000        //STC12xx052AD

 //EEPROM SIZE

 #define Sector_size    0x0200

 //STC89C51系列

 #define STC89x51_EEPROM_Sector_Number     18

 #define STC89x52_EEPROM_Sector_Number    10

 #define STC89x53_EEPROM_Sector_Number    4

 #define STC89x54_EEPROM_Sector_Number    90

 #define STC89x58_EEPROM_Sector_Number      58

 #define STC89x510_EEPROM_Sector_Number    44

 #define STC89x512_EEPROM_Sector_Number    28

 #define STC89x514_EEPROM_Sector_Number    12

 //STC89C51RC/RD+系列

 #define STC89x51RC_EEPROM_Sector_Number     8

 #define STC89x52RC_EEPROM_Sector_Number        8

 #define STC89x54RC_EEPROM_Sector_Number        90

 #define STC89x58RC_EEPROM_Sector_Number      58

 #define STC89x510RC_EEPROM_Sector_Number    42

 #define STC89x512RC_EEPROM_Sector_Number    26

 #define STC89x514RC_EEPROM_Sector_Number    10

 //STC90C51系列

 #define STC90x51_EEPROM_Sector_Number     10

 #define STC90x52_EEPROM_Sector_Number    10

 #define STC90x54_EEPROM_Sector_Number    90

 #define STC90x58_EEPROM_Sector_Number      58

 #define STC90x510_EEPROM_Sector_Number    42

 #define STC90x512_EEPROM_Sector_Number    26

 #define STC90x514_EEPROM_Sector_Number    10

 //STC89C51RC/RD+系列

 #define STC90x51RC_EEPROM_Sector_Number     18

 #define STC90x52RC_EEPROM_Sector_Number        10

 #define STC90x12RC_EEPROM_Sector_Number        2

 #define STC90x54RC_EEPROM_Sector_Number        90

 #define STC90x58RC_EEPROM_Sector_Number      58

 #define STC90x510RC_EEPROM_Sector_Number    42

 #define STC90x512RC_EEPROM_Sector_Number    26

 #define STC90x514RC_EEPROM_Sector_Number    10

 //STC89C51RC/RD+系列

 #define STC90x51RC_EEPROM_Sector_Number     18

 #define STC90x52RC_EEPROM_Sector_Number        10

 #define STC90x12RC_EEPROM_Sector_Number        2

 #define STC90x54RC_EEPROM_Sector_Number        90

 #define STC90x58RC_EEPROM_Sector_Number      58

 #define STC90x510RC_EEPROM_Sector_Number    42

 #define STC90x512RC_EEPROM_Sector_Number    26

 #define STC90x514RC_EEPROM_Sector_Number    10

 //STC12xx052AD系列

 #define STC12xx052AD_EEPROM_Sector_Number     20

 //EEPROM end

 //STC89C51系列

 #define STC89x51_EEPROM_End_ADDRESS STC89x51_EEPROM_Start_ADDRESS+Sector_size*(STC89x51_EEPROM_Sector_Number)-1

 #define STC89x52_EEPROM_End_ADDRESS STC89x52_EEPROM_Start_ADDRESS+Sector_size*(STC89x52_EEPROM_Sector_Number)-1

 #define STC89x53_EEPROM_End_ADDRESS STC89x53_EEPROM_Start_ADDRESS+Sector_size*(STC89x53_EEPROM_Sector_Number)-1

 #define STC89x54_EEPROM_End_ADDRESS STC89x54_EEPROM_Start_ADDRESS+Sector_size*(STC89x54_EEPROM_Sector_Number)-1

 #define STC89x58_EEPROM_End_ADDRESS STC89x58_EEPROM_Start_ADDRESS+Sector_size*(STC89x58_EEPROM_Sector_Number)-1

 #define STC89x510_EEPROM_End_ADDRESS STC89x510_EEPROM_Start_ADDRESS+Sector_size*(STC89x510_EEPROM_Sector_Number)-1

 #define STC89x512_EEPROM_End_ADDRESS STC89x512_EEPROM_Start_ADDRESS+Sector_size*(STC89x512_EEPROM_Sector_Number)-1

 #define STC89x514_EEPROM_End_ADDRESS STC89x514_EEPROM_Start_ADDRESS+Sector_size*(STC89x514_EEPROM_Sector_Number)-1

 //STC89C51RC/RD+系列

 #define STC89x51RC_EEPROM_End_ADDRESS STC89x51RC_EEPROM_Start_ADDRESS+Sector_size*(STC89x51RC_EEPROM_Sector_Number)-1

 #define STC89x52RC_EEPROM_End_ADDRESS STC89x52RC_EEPROM_Start_ADDRESS+Sector_size*(STC89x52RC_EEPROM_Sector_Number)-1

 #define STC89x54RC_EEPROM_End_ADDRESS STC89x54RC_EEPROM_Start_ADDRESS+Sector_size*(STC89x54RC_EEPROM_Sector_Number)-1

 #define STC89x58RC_EEPROM_End_ADDRESS STC89x58RC_EEPROM_Start_ADDRESS+Sector_size*(STC89x58RC_EEPROM_Sector_Number)-1

 #define STC89x510RC_EEPROM_End_ADDRESS STC89x510RC_EEPROM_Start_ADDRESS+Sector_size*(STC89x510RC_EEPROM_Sector_Number)-1

 #define STC89x512RC_EEPROM_End_ADDRESS STC89x512RC_EEPROM_Start_ADDRESS+Sector_size*(STC89x512RC_EEPROM_Sector_Number)-1

 #define STC89x514RC_EEPROM_End_ADDRESS STC89x514RC_EEPROM_Start_ADDRESS+Sector_size*(STC89x514RC_EEPROM_Sector_Number)-1

 //STC90C51系列

 #define STC90x51_EEPROM_End_ADDRESS STC90x51_EEPROM_Start_ADDRESS+Sector_size*(STC90x51_EEPROM_Sector_Number)-1

 #define STC90x52_EEPROM_End_ADDRESS STC90x52_EEPROM_Start_ADDRESS+Sector_size*(STC90x52_EEPROM_Sector_Number)-1

 #define STC90x54_EEPROM_End_ADDRESS STC90x54_EEPROM_Start_ADDRESS+Sector_size*(STC90x54_EEPROM_Sector_Number)-1

 #define STC90x58_EEPROM_End_ADDRESS STC90x58_EEPROM_Start_ADDRESS+Sector_size*(STC90x58_EEPROM_Sector_Number)-1

 #define STC90x510_EEPROM_End_ADDRESS STC90x510_EEPROM_Start_ADDRESS+Sector_size*(STC90x510_EEPROM_Sector_Number)-1

 #define STC90x512_EEPROM_End_ADDRESS STC90x512_EEPROM_Start_ADDRESS+Sector_size*(STC90x512_EEPROM_Sector_Number)-1

 #define STC90x514_EEPROM_End_ADDRESS STC90x514_EEPROM_Start_ADDRESS+Sector_size*(STC90x514_EEPROM_Sector_Number)-1

 //STC90C51RC/RD+系列

 #define STC90x51RC_EEPROM_End_ADDRESS STC90x51RC_EEPROM_Start_ADDRESS+Sector_size*(STC90x51RC_EEPROM_Sector_Number)-1

 #define STC90x52RC_EEPROM_End_ADDRESS STC90x52RC_EEPROM_Start_ADDRESS+Sector_size*(STC90x52RC_EEPROM_Sector_Number)-1

 #define STC90x12RC_EEPROM_End_ADDRESS STC90x12RC_EEPROM_Start_ADDRESS+Sector_size*(STC90x12RC_EEPROM_Sector_Number)-1

 #define STC90x54RC_EEPROM_End_ADDRESS STC90x54RC_EEPROM_Start_ADDRESS+Sector_size*(STC90x54RC_EEPROM_Sector_Number)-1

 #define STC90x58RC_EEPROM_End_ADDRESS STC90x58RC_EEPROM_Start_ADDRESS+Sector_size*(STC90x58RC_EEPROM_Sector_Number)-1

 #define STC90x510RC_EEPROM_End_ADDRESS STC90x510RC_EEPROM_Start_ADDRESS+Sector_size*(STC90x510RC_EEPROM_Sector_Number)-1

 #define STC90x512RC_EEPROM_End_ADDRESS STC90x512RC_EEPROM_Start_ADDRESS+Sector_size*(STC90x512RC_EEPROM_Sector_Number)-1

 #define STC90x514RC_EEPROM_End_ADDRESS STC90x514RC_EEPROM_Start_ADDRESS+Sector_size*(STC90x514RC_EEPROM_Sector_Number)-1

 //STC12xx052AD系列

 #define STC12xx052AD_EEPROM_End_ADDRESS STC12xx052AD_EEPROM_Start_ADDRESS+Sector_size*(STC12xx052AD_EEPROM_Sector_Number)-1

 /*-----------set eeprom parameter-----------*/

 //STC89C51系列

 #ifdef STC89x51

 #define ENABLE_EEPROM                   EEPROM_ENABLE_IAP+Clock_10M_20M                                                    //开启IAP，配置时钟

 #define EEPROM_Start_ADDRESS             STC89x51_EEPROM_Start_ADDRESS                                                     //eeprom起始地址

 #define EEPROM_buf_ADDRESS                 STC89x51_EEPROM_Start_ADDRESS + Sector_size*(STC89x51_EEPROM_Sector_Number -1)    //eeprom起始地址

 #define EEPROM_end_ADDRESS                 STC89x51_EEPROM_End_ADDRESS                                                        //eeprom结束地址

 #endif

 #ifdef STC89x52

 #define ENABLE_EEPROM                   EEPROM_ENABLE_IAP+Clock_10M_20M                                                    //开启IAP，配置时钟

 #define EEPROM_Start_ADDRESS             STC89x52_EEPROM_Start_ADDRESS                                                     //eeprom起始地址

 #define EEPROM_buf_ADDRESS                 STC89x52_EEPROM_Start_ADDRESS + Sector_size*(STC89x52_EEPROM_Sector_Number -1)    //eeprom起始地址

 #define EEPROM_end_ADDRESS                 STC89x52_EEPROM_End_ADDRESS                                                        //eeprom结束地址

 #endif

 #ifdef STC89x53

 #define ENABLE_EEPROM                   EEPROM_ENABLE_IAP+Clock_10M_20M                                                    //开启IAP，配置时钟

 #define EEPROM_Start_ADDRESS             STC89x53_EEPROM_Start_ADDRESS                                                     //eeprom起始地址

 #define EEPROM_buf_ADDRESS                 STC89x53_EEPROM_Start_ADDRESS + Sector_size*(STC89x53_EEPROM_Sector_Number -1)    //eeprom起始地址

 #define EEPROM_end_ADDRESS                 STC89x53_EEPROM_End_ADDRESS                                                        //eeprom结束地址

 #endif

 #ifdef STC89x54

 #define ENABLE_EEPROM                   EEPROM_ENABLE_IAP+Clock_10M_20M                                                    //开启IAP，配置时钟

 #define EEPROM_Start_ADDRESS             STC89x54_EEPROM_Start_ADDRESS                                                     //eeprom起始地址

 #define EEPROM_buf_ADDRESS                 STC89x54_EEPROM_Start_ADDRESS + Sector_size*(STC89x54_EEPROM_Sector_Number -1)    //eeprom起始地址

 #define EEPROM_end_ADDRESS                 STC89x54_EEPROM_End_ADDRESS                                                        //eeprom结束地址

 #endif

 #ifdef STC89x58

 #define ENABLE_EEPROM                   EEPROM_ENABLE_IAP+Clock_10M_20M                                                    //开启IAP，配置时钟

 #define EEPROM_Start_ADDRESS             STC89x58_EEPROM_Start_ADDRESS                                                     //eeprom起始地址

 #define EEPROM_buf_ADDRESS                 STC89x58_EEPROM_Start_ADDRESS + Sector_size*(STC89x58_EEPROM_Sector_Number -1)    //eeprom起始地址

 #define EEPROM_end_ADDRESS                 STC89x58_EEPROM_End_ADDRESS                                                        //eeprom结束地址

 #endif

 #ifdef STC89x510

 #define ENABLE_EEPROM                   EEPROM_ENABLE_IAP+Clock_10M_20M                                                        //开启IAP，配置时钟

 #define EEPROM_Start_ADDRESS             STC89x510_EEPROM_Start_ADDRESS                                                         //eeprom起始地址

 #define EEPROM_buf_ADDRESS                 STC89x510_EEPROM_Start_ADDRESS + Sector_size*(STC89x510_EEPROM_Sector_Number -1)    //eeprom起始地址

 #define EEPROM_end_ADDRESS                 STC89x510_EEPROM_End_ADDRESS                                                        //eeprom结束地址

 #endif

 #ifdef STC89x512

 #define ENABLE_EEPROM                   EEPROM_ENABLE_IAP+Clock_10M_20M                                                        //开启IAP，配置时钟

 #define EEPROM_Start_ADDRESS             STC89x512_EEPROM_Start_ADDRESS                                                         //eeprom起始地址

 #define EEPROM_buf_ADDRESS                 STC89x512_EEPROM_Start_ADDRESS + Sector_size*(STC89x512_EEPROM_Sector_Number -1)    //eeprom起始地址

 #define EEPROM_end_ADDRESS                 STC89x512_EEPROM_End_ADDRESS                                                        //eeprom结束地址

 #endif

 #ifdef STC89x514

 #define ENABLE_EEPROM                   EEPROM_ENABLE_IAP+Clock_10M_20M                                                        //开启IAP，配置时钟

 #define EEPROM_Start_ADDRESS             STC89x514_EEPROM_Start_ADDRESS                                                         //eeprom起始地址

 #define EEPROM_buf_ADDRESS                 STC89x514_EEPROM_Start_ADDRESS + Sector_size*(STC89x514_EEPROM_Sector_Number -1)    //eeprom起始地址

 #define EEPROM_end_ADDRESS                 STC89x514_EEPROM_End_ADDRESS                                                        //eeprom结束地址

 #endif

 //STC89C51RC系列

 #ifdef STC89x51RC

 #define ENABLE_EEPROM                   EEPROM_ENABLE_IAP+Clock_10M_20M                                                    //开启IAP，配置时钟

 #define EEPROM_Start_ADDRESS             STC89x51RC_EEPROM_Start_ADDRESS                                                     //eeprom起始地址

 #define EEPROM_buf_ADDRESS                 STC89x51RC_EEPROM_Start_ADDRESS + Sector_size*(STC89x51RC_EEPROM_Sector_Number -1)    //eeprom起始地址

 #define EEPROM_end_ADDRESS                 STC89x51RC_EEPROM_End_ADDRESS                                                        //eeprom结束地址

 #endif

 #ifdef STC89x52RC

 #define ENABLE_EEPROM                   EEPROM_ENABLE_IAP+Clock_10M_20M                                                    //开启IAP，配置时钟

 #define EEPROM_Start_ADDRESS             STC89x52RC_EEPROM_Start_ADDRESS                                                     //eeprom起始地址

 #define EEPROM_buf_ADDRESS                 STC89x52RC_EEPROM_Start_ADDRESS + Sector_size*(STC89x52RC_EEPROM_Sector_Number -1)    //eeprom起始地址

 #define EEPROM_end_ADDRESS                 STC89x52RC_EEPROM_End_ADDRESS                                                        //eeprom结束地址

 #endif

 #ifdef STC89x54RC

 #define ENABLE_EEPROM                   EEPROM_ENABLE_IAP+Clock_10M_20M                                                    //开启IAP，配置时钟

 #define EEPROM_Start_ADDRESS             STC89x54RC_EEPROM_Start_ADDRESS                                                     //eeprom起始地址

 #define EEPROM_buf_ADDRESS                 STC89x54RC_EEPROM_Start_ADDRESS + Sector_size*(STC89x54RC_EEPROM_Sector_Number -1)    //eeprom起始地址

 #define EEPROM_end_ADDRESS                 STC89x54RC_EEPROM_End_ADDRESS                                                        //eeprom结束地址

 #endif

 #ifdef STC89x58RC

 #define ENABLE_EEPROM                   EEPROM_ENABLE_IAP+Clock_10M_20M                                                    //开启IAP，配置时钟

 #define EEPROM_Start_ADDRESS             STC89x58RC_EEPROM_Start_ADDRESS                                                     //eeprom起始地址

 #define EEPROM_buf_ADDRESS                 STC89x58RC_EEPROM_Start_ADDRESS + Sector_size*(STC89x58RC_EEPROM_Sector_Number -1)    //eeprom起始地址

 #define EEPROM_end_ADDRESS                 STC89x58RC_EEPROM_End_ADDRESS                                                        //eeprom结束地址

 #endif

 #ifdef STC89x510RC

 #define ENABLE_EEPROM                   EEPROM_ENABLE_IAP+Clock_10M_20M                                                        //开启IAP，配置时钟

 #define EEPROM_Start_ADDRESS             STC89x510RC_EEPROM_Start_ADDRESS                                                         //eeprom起始地址

 #define EEPROM_buf_ADDRESS                 STC89x510RC_EEPROM_Start_ADDRESS + Sector_size*(STC89x510RC_EEPROM_Sector_Number -1)    //eeprom起始地址

 #define EEPROM_end_ADDRESS                 STC89x510RC_EEPROM_End_ADDRESS                                                        //eeprom结束地址

 #endif

 #ifdef STC89x512RC

 #define ENABLE_EEPROM                   EEPROM_ENABLE_IAP+Clock_10M_20M                                                        //开启IAP，配置时钟

 #define EEPROM_Start_ADDRESS             STC89x512RC_EEPROM_Start_ADDRESS                                                         //eeprom起始地址

 #define EEPROM_buf_ADDRESS                 STC89x512RC_EEPROM_Start_ADDRESS + Sector_size*(STC89x512RC_EEPROM_Sector_Number -1)    //eeprom起始地址

 #define EEPROM_end_ADDRESS                 STC89x512RC_EEPROM_End_ADDRESS                                                        //eeprom结束地址

 #endif

 #ifdef STC89x514RC

 #define ENABLE_EEPROM                   EEPROM_ENABLE_IAP+Clock_10M_20M                                                        //开启IAP，配置时钟

 #define EEPROM_Start_ADDRESS             STC89x514RC_EEPROM_Start_ADDRESS                                                         //eeprom起始地址

 #define EEPROM_buf_ADDRESS                 STC89x514RC_EEPROM_Start_ADDRESS + Sector_size*(STC89x514RC_EEPROM_Sector_Number -1)    //eeprom起始地址

 #define EEPROM_end_ADDRESS                 STC89x514RC_EEPROM_End_ADDRESS                                                        //eeprom结束地址

 #endif

 //STC90C51系列

 #ifdef STC90x51

 #define ENABLE_EEPROM                   EEPROM_ENABLE_IAP+Clock_10M_20M                                                    //开启IAP，配置时钟

 #define EEPROM_Start_ADDRESS             STC90x51_EEPROM_Start_ADDRESS                                                     //eeprom起始地址

 #define EEPROM_buf_ADDRESS                 STC90x51_EEPROM_Start_ADDRESS + Sector_size*(STC90x51_EEPROM_Sector_Number -1)    //eeprom起始地址

 #define EEPROM_end_ADDRESS                 STC90x51_EEPROM_End_ADDRESS                                                        //eeprom结束地址

 #endif

 #ifdef STC90x52

 #define ENABLE_EEPROM                   EEPROM_ENABLE_IAP+Clock_10M_20M                                                    //开启IAP，配置时钟

 #define EEPROM_Start_ADDRESS             STC90x52_EEPROM_Start_ADDRESS                                                     //eeprom起始地址

 #define EEPROM_buf_ADDRESS                 STC90x52_EEPROM_Start_ADDRESS + Sector_size*(STC90x52_EEPROM_Sector_Number -1)    //eeprom起始地址

 #define EEPROM_end_ADDRESS                 STC90x52_EEPROM_End_ADDRESS                                                        //eeprom结束地址

 #endif

 #ifdef STC90x54

 #define ENABLE_EEPROM                   EEPROM_ENABLE_IAP+Clock_10M_20M                                                    //开启IAP，配置时钟

 #define EEPROM_Start_ADDRESS             STC90x54_EEPROM_Start_ADDRESS                                                     //eeprom起始地址

 #define EEPROM_buf_ADDRESS                 STC90x54_EEPROM_Start_ADDRESS + Sector_size*(STC90x54_EEPROM_Sector_Number -1)    //eeprom起始地址

 #define EEPROM_end_ADDRESS                 STC90x54_EEPROM_End_ADDRESS                                                        //eeprom结束地址

 #endif

 #ifdef STC90x58

 #define ENABLE_EEPROM                   EEPROM_ENABLE_IAP+Clock_10M_20M                                                    //开启IAP，配置时钟

 #define EEPROM_Start_ADDRESS             STC90x58_EEPROM_Start_ADDRESS                                                     //eeprom起始地址

 #define EEPROM_buf_ADDRESS                 STC90x58_EEPROM_Start_ADDRESS + Sector_size*(STC90x58_EEPROM_Sector_Number -1)    //eeprom起始地址

 #define EEPROM_end_ADDRESS                 STC90x58_EEPROM_End_ADDRESS                                                        //eeprom结束地址

 #endif

 #ifdef STC90x510

 #define ENABLE_EEPROM                   EEPROM_ENABLE_IAP+Clock_10M_20M                                                        //开启IAP，配置时钟

 #define EEPROM_Start_ADDRESS             STC90x510_EEPROM_Start_ADDRESS                                                         //eeprom起始地址

 #define EEPROM_buf_ADDRESS                 STC90x510_EEPROM_Start_ADDRESS + Sector_size*(STC90x510_EEPROM_Sector_Number -1)    //eeprom起始地址

 #define EEPROM_end_ADDRESS                 STC90x510_EEPROM_End_ADDRESS                                                        //eeprom结束地址

 #endif

 #ifdef STC90x512

 #define ENABLE_EEPROM                   EEPROM_ENABLE_IAP+Clock_10M_20M                                                        //开启IAP，配置时钟

 #define EEPROM_Start_ADDRESS             STC90x512_EEPROM_Start_ADDRESS                                                         //eeprom起始地址

 #define EEPROM_buf_ADDRESS                 STC90x512_EEPROM_Start_ADDRESS + Sector_size*(STC90x512_EEPROM_Sector_Number -1)    //eeprom起始地址

 #define EEPROM_end_ADDRESS                 STC90x512_EEPROM_End_ADDRESS                                                        //eeprom结束地址

 #endif

 #ifdef STC90x514

 #define ENABLE_EEPROM                   EEPROM_ENABLE_IAP+Clock_10M_20M                                                        //开启IAP，配置时钟

 #define EEPROM_Start_ADDRESS             STC90x514_EEPROM_Start_ADDRESS                                                         //eeprom起始地址

 #define EEPROM_buf_ADDRESS                 STC90x514_EEPROM_Start_ADDRESS + Sector_size*(STC90x514_EEPROM_Sector_Number -1)    //eeprom起始地址

 #define EEPROM_end_ADDRESS                 STC90x514_EEPROM_End_ADDRESS                                                        //eeprom结束地址

 #endif

 //STC90C51RC系列

 #ifdef STC90x51RC

 #define ENABLE_EEPROM                   EEPROM_ENABLE_IAP+Clock_10M_20M                                                    //开启IAP，配置时钟

 #define EEPROM_Start_ADDRESS             STC90x51RC_EEPROM_Start_ADDRESS                                                     //eeprom起始地址

 #define EEPROM_buf_ADDRESS                 STC90x51RC_EEPROM_Start_ADDRESS + Sector_size*(STC90x51RC_EEPROM_Sector_Number -1)    //eeprom起始地址

 #define EEPROM_end_ADDRESS                 STC90x51RC_EEPROM_End_ADDRESS                                                        //eeprom结束地址

 #endif

 #ifdef STC90x52RC

 #define ENABLE_EEPROM                   EEPROM_ENABLE_IAP+Clock_10M_20M                                                    //开启IAP，配置时钟

 #define EEPROM_Start_ADDRESS             STC90x52RC_EEPROM_Start_ADDRESS                                                     //eeprom起始地址

 #define EEPROM_buf_ADDRESS                 STC90x52RC_EEPROM_Start_ADDRESS + Sector_size*(STC90x52RC_EEPROM_Sector_Number -1)    //eeprom起始地址

 #define EEPROM_end_ADDRESS                 STC90x52RC_EEPROM_End_ADDRESS                                                        //eeprom结束地址

 #endif

 #ifdef STC90x12RC

 #define ENABLE_EEPROM                   EEPROM_ENABLE_IAP+Clock_10M_20M                                                    //开启IAP，配置时钟

 #define EEPROM_Start_ADDRESS             STC90x12RC_EEPROM_Start_ADDRESS                                                     //eeprom起始地址

 #define EEPROM_buf_ADDRESS                 STC90x12RC_EEPROM_Start_ADDRESS + Sector_size*(STC90x12RC_EEPROM_Sector_Number -1)    //eeprom起始地址

 #define EEPROM_end_ADDRESS                 STC90x12RC_EEPROM_End_ADDRESS                                                        //eeprom结束地址

 #endif

 #ifdef STC90x54RC

 #define ENABLE_EEPROM                   EEPROM_ENABLE_IAP+Clock_10M_20M                                                    //开启IAP，配置时钟

 #define EEPROM_Start_ADDRESS             STC90x54RC_EEPROM_Start_ADDRESS                                                     //eeprom起始地址

 #define EEPROM_buf_ADDRESS                 STC90x54RC_EEPROM_Start_ADDRESS + Sector_size*(STC89x54RC_EEPROM_Sector_Number -1)    //eeprom起始地址

 #define EEPROM_end_ADDRESS                 STC90x54RC_EEPROM_End_ADDRESS                                                        //eeprom结束地址

 #endif

 #ifdef STC90x58RC

 #define ENABLE_EEPROM                   EEPROM_ENABLE_IAP+Clock_10M_20M                                                    //开启IAP，配置时钟

 #define EEPROM_Start_ADDRESS             STC90x58RC_EEPROM_Start_ADDRESS                                                     //eeprom起始地址

 #define EEPROM_buf_ADDRESS                 STC90x58RC_EEPROM_Start_ADDRESS + Sector_size*(STC89x58RC_EEPROM_Sector_Number -1)    //eeprom起始地址

 #define EEPROM_end_ADDRESS                 STC90x58RC_EEPROM_End_ADDRESS                                                        //eeprom结束地址

 #endif

 #ifdef STC90x510RC

 #define ENABLE_EEPROM                   EEPROM_ENABLE_IAP+Clock_10M_20M                                                        //开启IAP，配置时钟

 #define EEPROM_Start_ADDRESS             STC90x510RC_EEPROM_Start_ADDRESS                                                         //eeprom起始地址

 #define EEPROM_buf_ADDRESS                 STC90x510RC_EEPROM_Start_ADDRESS + Sector_size*(STC89x510RC_EEPROM_Sector_Number -1)    //eeprom起始地址

 #define EEPROM_end_ADDRESS                 STC90x510RC_EEPROM_End_ADDRESS                                                        //eeprom结束地址

 #endif

 #ifdef STC90x512RC

 #define ENABLE_EEPROM                   EEPROM_ENABLE_IAP+Clock_10M_20M                                                        //开启IAP，配置时钟

 #define EEPROM_Start_ADDRESS             STC90x512RC_EEPROM_Start_ADDRESS                                                         //eeprom起始地址

 #define EEPROM_buf_ADDRESS                 STC90x512RC_EEPROM_Start_ADDRESS + Sector_size*(STC89x512RC_EEPROM_Sector_Number -1)    //eeprom起始地址

 #define EEPROM_end_ADDRESS                 STC90x512RC_EEPROM_End_ADDRESS                                                        //eeprom结束地址

 #endif

 #ifdef STC90x514RC

 #define ENABLE_EEPROM                   EEPROM_ENABLE_IAP+Clock_10M_20M                                                        //开启IAP，配置时钟

 #define EEPROM_Start_ADDRESS             STC90x514RC_EEPROM_Start_ADDRESS                                                         //eeprom起始地址

 #define EEPROM_buf_ADDRESS                 STC90x514RC_EEPROM_Start_ADDRESS + Sector_size*(STC90x514RC_EEPROM_Sector_Number -1)    //eeprom起始地址

 #define EEPROM_end_ADDRESS                 STC90x514RC_EEPROM_End_ADDRESS                                                        //eeprom结束地址

 #endif

 //STC12xx052AD系列

 #if defined(STC12xx052AD) || defined(STC12x1052AD) || defined(STC12x2052AD) || defined(STC12x4052AD) || defined(STC12x5052AD)

 #define ENABLE_EEPROM                   EEPROM_ENABLE_IAP+Clock_10M_20M                                                            //开启IAP，配置时钟

 #define EEPROM_Start_ADDRESS             STC12xx052AD_EEPROM_Start_ADDRESS                                                         //eeprom起始地址

 #define EEPROM_buf_ADDRESS                 STC12xx052AD_EEPROM_Start_ADDRESS + Sector_size*(STC12xx052AD_EEPROM_Sector_Number -1)    //eeprom起始地址

 #define EEPROM_end_ADDRESS                 STC12xx052AD_EEPROM_End_ADDRESS                                                            //eeprom结束地址

 #endif

 /*----------------函数-----------------*/

 /*-----------eeprom------------*/

 //Eeprom_Unlock（解锁）

 void Eeprom_Unlock(void);

 //Eeprom_Locked（上锁）

 void Eeprom_Locked(void);

 //Eeprom_Effective（配置生效）

 void Eeprom_Effective(void);

 //EEPROM区域读取一个字节

 unsigned char EEPROM_Read_Byte(unsigned int addr);

 //将一个字节编程到EEPROM区域

 void EEPROM_Write_Byte(unsigned int addr, unsigned char dat);

 //擦除一个扇区

 void EEPROM_Erase_sector(unsigned int addr);

 //读取指定地址数据

 unsigned char EEPROM_assign_Read(unsigned char Sector,unsigned int position);

 //写入指定地址数据

 void EEPROM_assign_Write(unsigned char Sector,unsigned int position,unsigned char value);

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

 //字节对比

 bit Compared(unsigned char Evalue,unsigned char value);

 //stc 读取指定地址数据

 unsigned char STC_EEPROM_assign_Read(unsigned char Sector,unsigned int position);

 //stc 写入指定地址数据

 void SCT_EEPROM_assign_Write(unsigned char Sector,unsigned int position,unsigned char value);

 #endif

Eeprom.c

 #include "eeprom.h"

 /*-----------eeprom------------*/

 //-------------------------------

 //Eeprom_Unlock（解锁）

 //Input: on

 //Output:on

 //-------------------------------

 void Eeprom_Unlock(void)

 {

     IAP_CONTR = ENABLE_EEPROM;         //打开IAP功能，并设置等待时间

 }

 //-------------------------------

 //Eeprom_Locked（上锁）

 //Input: on

 //Output:on

 //-------------------------------

 void Eeprom_Locked(void)

 {

     IAP_CONTR = ;                  //关闭IAP功能

     IAP_CMD = ;                    //清除命令到待机状态

     IAP_TRIG = ;                   //清除触发寄存器

     IAP_ADDRH = 0x80;               //数据ptr指向非EEPROM区域

     IAP_ADDRL = ;                  //清除IAP地址以防止滥用

 }

 //-------------------------------

 //Eeprom_Effective（配置生效）

 //Input: on

 //Output:on

 //-------------------------------

 void Eeprom_Effective(void)

 {

     IAP_TRIG = 0x46;                //发送触发器命令1（0x46）

     IAP_TRIG = 0xb9;                //发送触发器命令2（0xb9）

     _nop_();                        //MCU将保持在此处，直到ISP / IAP / EEPROM操作完成

 }

 //-------------------------------

 //EEPROM区域读取一个字节

 //Input: addr 16位EEPROM地址

 //Output:on

 //-------------------------------

 unsigned char EEPROM_Read_Byte(unsigned int addr)

 {

     unsigned char dat;                //数据缓冲区

     Eeprom_Unlock();

     IAP_CMD = EEPROM_CMD_READ;      //设置ISP / IAP / EEPROM READ命令

     IAP_ADDRL = addr;               //将ISP / IAP / EEPROM地址低8位设置

     IAP_ADDRH = addr >> ;          //将ISP / IAP / EEPROM地址高8位设置

     Eeprom_Effective();        //生效

     dat = IAP_DATA;                 //读取ISP / IAP / EEPROM数据

     Eeprom_Locked();                //关闭ISP / IAP / EEPROM功能

     return dat;                     //返回Flash数据

 }

 //-------------------------------

 //将一个字节编程到EEPROM区域

 //Input: addr 16位EEPROM地址

 //        value 8位数据

 //Output:on

 //-------------------------------

 void EEPROM_Write_Byte(unsigned int addr, unsigned char value)

 {

     Eeprom_Unlock();

     IAP_CMD = EEPROM_CMD_PROGRAM;   //设置EEPROM PROGRAM命令

     IAP_ADDRL = addr;               //将EEPROM地址低8位设置

     IAP_ADDRH = addr >> ;          //将EEPROM地址高8位设置

     IAP_DATA = value;               //数据写入寄存器

     Eeprom_Effective();        //生效

     Eeprom_Locked();

 }

 //-------------------------------

 //擦除EEPROM一个扇区

 //Input: addr 16位EEPROM地址

 //Output:on

 //-------------------------------

 void EEPROM_Erase_sector(unsigned int addr)

 {

     Eeprom_Unlock();

     IAP_CMD = EEPROM_CMD_ERASE;     //Set ISP/IAP/EEPROM ERASE command

     IAP_ADDRL = addr;               //Set ISP/IAP/EEPROM address low

     IAP_ADDRH = addr >> ;          //Set ISP/IAP/EEPROM address high

     Eeprom_Effective();                //生效

     Eeprom_Locked();

 }

 //-------------------------------

 //读取指定地址数据

 //Input: Sector 扇区编号

 //        position 扇区内相对地址

 //Output:指定位置的数据

 //-------------------------------

 unsigned char EEPROM_assign_Read(unsigned char Sector,unsigned int position){

     return EEPROM_Read_Byte(EEPROM_Start_ADDRESS + Sector*Sector_size + position);

 }

 //-------------------------------

 //写入指定地址数据

 //Input: Sector 扇区编号

 //        position 扇区内相对地址

 //        value 写入指定位置的数据

 //Output:on

 //-------------------------------

 void EEPROM_assign_Write(unsigned char Sector,unsigned int position,unsigned char value){

     EEPROM_Write_Byte(EEPROM_Start_ADDRESS + Sector*Sector_size + position,value);    //鉴定是否需要擦除

 }

 /*--------------------------------------------------------------------*/

 //-------------------------------

 //写入指定地址数据

 //Input: Evalue EEPROM读取的数据

 //        value 新的数据

 //Output:0 符合，直接写入

 //        1要进行数据处理

 //-------------------------------

 bit Compared(unsigned char Evalue,unsigned char value){

     unsigned char i;

     unsigned char date = ;

     bit Ev;

     bit V;

     for(i = ; i < ; i++){

         Ev     = (Evalue & (0x01 << i));

         V    = (value & (0x01 << i));

         if((Ev == )&&(V == ))return ;

     }

     return ;

 }

 //-------------------------------

 //stc 读取指定地址数据

 //Input: Sector 扇区编号

 //        position 扇区内相对地址

 //Output:指定位置的数据

 //-------------------------------

 unsigned char STC_EEPROM_assign_Read(unsigned char Sector,unsigned int position){

     return EEPROM_assign_Read(Sector,position);

 }

 //stc 写入指定地址数据（根据STC单片机特点，对EEPROM写入进行特别的处理）

 void SCT_EEPROM_assign_Write(unsigned char Sector,unsigned int position,unsigned char value){

     int count;

     if( == Compared(STC_EEPROM_assign_Read(Sector,position),value))EEPROM_assign_Write(Sector,position,value);        //鉴定是否需要擦除

     else {

         EEPROM_Erase_sector(EEPROM_buf_ADDRESS);                    //清洗EEPROM缓存区

         for(count = ; count < Sector_size;count++){

             if(position == count)EEPROM_Write_Byte( EEPROM_buf_ADDRESS+position,value);                    //替换数据

             else EEPROM_Write_Byte(EEPROM_buf_ADDRESS + count,EEPROM_assign_Read(Sector,count));        //复制数据

         }

         EEPROM_Erase_sector(EEPROM_Start_ADDRESS + Sector*Sector_size);                                  //擦除一个扇区（起始地址）

         for(count = ; count < Sector_size;count++)EEPROM_assign_Write(Sector,count,EEPROM_Read_Byte(EEPROM_buf_ADDRESS + count));

     }

 }

本代码支持只stc89/90系列自带EEPROM的单片机。

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