欧美极品高清xxxxhd,国产日产欧美最新,无码AV国产东京热AV无码,国产精品人与动性XXX,国产传媒亚洲综合一区二区,四库影院永久国产精品,毛片免费免费高清视频,福利所导航夜趣136

標題: EEPROM.H頭文件下載<51單片機使用Flash ROM模擬EEPROM 先擦除后編輯> [打印本頁]

作者: liuqq 時間: 2015-5-19 01:47
標題: EEPROM.H頭文件下載<51單片機使用Flash ROM模擬EEPROM 先擦除后編輯>
EEPROM.H stc單片機片內存儲器的操作頭文件下載：

#ifndef _EERPOM_H_
#define _EEPROM_H_

#include <reg51.h>
#include "intrins.h"

#define nop() _nop_()

#define uint8 unsigned char
#define uint16  unsigned int

/*Declare SFR associated with the IAP */
sfr IAP_DATA = 0xC2;    //Flash data register
sfr IAP_ADDRH = 0xC3;    //Flash address HIGH
sfr IAP_ADDRL = 0xC4;    //Flash address LOW
sfr IAP_CMD    = 0xC5;    //Flash command register
sfr IAP_TRIG = 0xC6;    //Flash command trigger
sfr IAP_CONTR = 0xC7;    //Flash control register

/*Define ISP/IAP/EEPROM command*/
#define CMD_IDLE 0          //Stand-By
#define CMD_READ 1          //Byte-Read
#define CMD_PROGRAM 2          //Byte-Program
#define CMD_ERASE 3          //Sector-Erase

/*Define ISP/IAP/EEPROM operation const for IAP_CONTR*/
      //#define ENABLE_IAP 0x80    //if SYSCLK<30MHz
#define ENABLE_IAP 0x81    //if SYSCLK<24MHz
      //#define ENABLE_IAP 0x82    //if SYSCLK<20MHz
      //#define ENABLE_IAP 0x83    //if SYSCLK<12MHz
      //#define ENABLE_IAP 0x84    //if SYSCLK<6MHz
      //#define ENABLE_IAP 0x85    //if SYSCLK<3MHz
      //#define ENABLE_IAP 0x86    //if SYSCLK<2MHz
      //#define ENABLE_IAP 0x87    //if SYSCLK<1MHz

      //Start address for STC11/10xx EEPROM
      //#define IAP_ADDRESS 0x0400

      //Start address for STC12C5A60S2 EEPROM
#define IAP_ADDRESS 0x0000

void EEPROMDelay(uint8 n)
{
uint16 x;

while (n--)
{
      x =125;
      while (x--);
}
}

/*----------------------------
* 名稱 : IapIdle();
* 功能 : 關閉IAP EEPROM編輯功能，安全操作
----------------------------*/
void IapIdle()
{
IAP_CONTR = 0;             //Close IAP function
IAP_CMD = 0;             //Clear command to standby
IAP_TRIG = 0;             //Clear trigger register
IAP_ADDRH = 0x80;          //Data ptr point to non-EEPROM area
IAP_ADDRL = 0;             //Clear IAP address to prevent misuse
}

/*----------------------------
* 名稱 : IapReadByte(0x0000);
* 功能 : 讀扇區
----------------------------*/
uint8 IapReadByte(uint16 addr)
{
uint8 dat;                //Data buffer

IAP_CONTR = ENABLE_IAP;    //Open IAP function, and set wait time
IAP_CMD = CMD_READ;       //Set ISP/IAP/EEPROM READ command
IAP_ADDRL = addr;          //Set ISP/IAP/EEPROM address low
IAP_ADDRH = addr >> 8;    //Set ISP/IAP/EEPROM address high
IAP_TRIG = 0x5a;          //Send trigger command1 (0x5a)
IAP_TRIG = 0xa5;          //Send trigger command2 (0xa5)
nop();                   //MCU will hold here until ISP/IAP/EEPROM operation complete
dat = IAP_DATA;          //Read ISP/IAP/EEPROM data
IapIdle();                //Close ISP/IAP/EEPROM function

return dat;                //Return Flash data
}

/*----------------------------
* 名稱 : IapEraseSector(0x0000);
* 功能 : 扇區擦除
----------------------------*/
void IapEraseSector(uint16 addr)
{
IAP_CONTR = ENABLE_IAP;    //Open IAP function, and set wait time
IAP_CMD = CMD_ERASE;       //Set ISP/IAP/EEPROM ERASE command
IAP_ADDRL = addr;          //Set ISP/IAP/EEPROM address low
IAP_ADDRH = addr >> 8;    //Set ISP/IAP/EEPROM address high
IAP_TRIG = 0x5a;          //Send trigger command1 (0x5a)
IAP_TRIG = 0xa5;          //Send trigger command2 (0xa5)
nop();                   //MCU will hold here until ISP/IAP/EEPROM operation complete
IapIdle();
}

/*----------------------------
* 名稱 : IapProgramByte(0x0000,data);
* 功能 : 扇區編輯
----------------------------*/
void IapProgramByte(uint16 addr, uint8 dat)
{

IAP_CONTR = ENABLE_IAP;    //Open IAP function, and set wait time
IAP_CMD = CMD_PROGRAM;    //Set ISP/IAP/EEPROM PROGRAM command
IAP_ADDRL = addr;          //Set ISP/IAP/EEPROM address low
IAP_ADDRH = addr >> 8;    //Set ISP/IAP/EEPROM address high
IAP_DATA = dat;          //Write ISP/IAP/EEPROM data
IAP_TRIG = 0x5a;          //Send trigger command1 (0x5a)
IAP_TRIG = 0xa5;          //Send trigger command2 (0xa5)
nop();                   //MCU will hold here until ISP/IAP/EEPROM operation complete
IapIdle();
}

/*----------------------------
* 名稱 : IapProgramWord(0x0000,data);
* 功能 : 十六位扇區編輯
----------------------------*/
void IapProgramWord(uint16 addr, uint16 dat)
{
uint8 dat_L,dat_H;
dat_L=dat;
dat_H=dat >> 8;

   IAP_CONTR = ENABLE_IAP;
IAP_CMD = CMD_PROGRAM;
IAP_ADDRL = addr+0x0001;
IAP_ADDRH = (addr+0x0001)>> 8;
IAP_DATA = dat_H;
IAP_TRIG = 0x5a;
IAP_TRIG = 0xa5;
nop();
IapIdle();

   IAP_CONTR = ENABLE_IAP;
IAP_CMD = CMD_PROGRAM;
IAP_ADDRL = addr;
IAP_ADDRH = addr >> 8;
IAP_DATA = dat_L;
IAP_TRIG = 0x5a;
IAP_TRIG = 0xa5;
nop();
IapIdle();

}

/*----------------------------
* 名稱 : IapReadWord(0x0000);
* 功能 : 讀十六位扇區
----------------------------*/
uint16 IapReadWord(uint16 addr)
{
uint16 dat;                //Data buffer
uint8 dat_H,dat_L;

   IAP_CONTR = ENABLE_IAP;    //Open IAP function, and set wait time
IAP_CMD = CMD_READ;          //Set ISP/IAP/EEPROM READ command
IAP_ADDRL = (addr+0x0001);          //Set ISP/IAP/EEPROM address low
IAP_ADDRH = (addr+0x0001) >> 8;    //Set ISP/IAP/EEPROM address high
IAP_TRIG = 0x5a;             //Send trigger command1 (0x5a)
IAP_TRIG = 0xa5;             //Send trigger command2 (0xa5)
nop();                      //MCU will hold here until ISP/IAP/EEPROM operation complete
dat_H = IAP_DATA;          //Read ISP/IAP/EEPROM data
IapIdle();

IAP_CONTR = ENABLE_IAP;    //Open IAP function, and set wait time
IAP_CMD = CMD_READ;       //Set ISP/IAP/EEPROM READ command
IAP_ADDRL = addr;          //Set ISP/IAP/EEPROM address low
IAP_ADDRH = addr >> 8;    //Set ISP/IAP/EEPROM address high
IAP_TRIG = 0x5a;          //Send trigger command1 (0x5a)
IAP_TRIG = 0xa5;          //Send trigger command2 (0xa5)
nop();                   //MCU will hold here until ISP/IAP/EEPROM operation complete
dat_L= IAP_DATA;          //Read ISP/IAP/EEPROM data
IapIdle();                //Close ISP/IAP/EEPROM function

      dat=(dat_H << 8)+dat_L;

return dat;                //Return Flash data
}

#endif

歡迎光臨 (http://www.raoushi.com/bbs/)