合泰单片机EEPROM编程实例

只看该作者 · 2017-5-16 10:00

以下为合泰单片机EEPROM编程实例，基本上适用于大部分合泰的MCU

.C文件

/***********************************************************
** Function : fun_eeprom_Write
** INPUT : lu8v_addr;lu8v_data
** OUTPUT : none
** NOTE    : none
***********************************************************/

void fun_eeprom_Write(u8 lu8v_addr, u8 lu8v_data)
{

      _eea = lu8v_addr;
      _eed = lu8v_data;

      #if(mac_eeprom_type == mac_eeprom_Short)

      _bp    = 1;
      _mp1 = 0x40;
      _iar1  |= 0x08;
      _iar1  |= 0x04;
      while(_iar1 & 0x04);
      _iar1       &=       0xf7;                               //disable WREN
      _bp    = 0;

      #endif
//============================================================
      #if(mac_eeprom_type == mac_eeprom_Long)

      _mp1l = 0x40;
      _mp1h = 1;
      _iar1       |=       0x8;                               //enable WREN
      _iar1       |=       0x4;                               //active write
      while(_iar1 & 0x04);             //wait write end
      _iar1       &=       0xf7;                               //disable WREN

      #endif
}

/***********************************************************
** Function : fun_eeprom_Read
** INPUT : lu8v_addr
** OUTPUT : lu8v_eeprom_byte
** NOTE    : none
***********************************************************/

u8 fun_eeprom_Read(u8 lu8v_addr)
{
      u8 lu8v_eeprom_byte;

      _eea = lu8v_addr;

      #if(mac_eeprom_type == mac_eeprom_Short)

      _bp    = 1;
      _mp1 = 0x40;
      _iar1  |= 0x02;
      _iar1  |= 0x01;

      while(_iar1 & 0x01);
      lu8v_eeprom_byte = _eed;
      _iar1  &= 0xfd;

      #endif
//============================================================
      #if(mac_eeprom_type == mac_eeprom_Long)

      _mp1l = 0x40;
      _mp1h = 1;
      _iar1 |=0x2;                               //enable RDEN
      _iar1 |=0x1;                               //active READ
      while(_iar1 & 0x01);             //wait read end
      lu8v_eeprom_byte = _eed;
      _iar1 &=       0xfD;                               //disable RDEN

      #endif

      return lu8v_eeprom_byte;

}

.h文件

#ifndef _eeprom_h_
#define _eeprom_h_

/********************************************************************
NOTE:無需修改
********************************************************************/
#define       mac_eeprom_Long             1
#define       mac_eeprom_Short       0
#define mac_eeprom_type             mac_Eeprom_Short

/********************************************************************
Function:
********************************************************************/
void fun_eeprom_Write(u8 lu8v_addr, u8 lu8v_data);
u8 fun_eeprom_Read(u8 lu8v_addr);

#endif

合泰单片机EEPROM编程实例

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