ATmega48__EEPROM读写

   //===写入数据 = 16bit=======================
void EEPROM_W16(char addH, unsigned int xx){ 
char HH,LL; 

LL=(char)xx; xx=xx>>8; HH=(char)xx;

#asm("cli")
while(EECR.1){}  // 等待EEWE 位变为零  
EEAR=addH;         //EEPROM 地址写入EEAR    
EEDR=HH;         //新的EEPROM 数据写入EEDR
EECR=0x04;        // EEMWE=1; EEWE=0  //EEPROM 写允许
EECR=EECR|0x02;        // EEWE=1;    //EEPROM 写入
while(EECR.1){}  // 等待EEWE 位变为零   
delay_ms(10); 

addH++;               // 地址再加两位
EEAR=addH;         //EEPROM 地址写入EEAR    
EEDR=LL;         //新的EEPROM 数据写入EEDR
EECR=0x04;        // EEMWE=1; EEWE=0  //EEPROM 写允许
EECR=EECR|0x02;        // EEWE=1;    //EEPROM 写入
while(EECR.1){}  // 等待EEWE 位变为零   
delay_ms(10);
EECR=0x00;
#asm("sei")
} 

// 读 EEPROM 数据 ====16 bit=======================================
unsigned int EEPROM_R16(unsigned char addH){
unsigned int MM;
unsigned char HH,LL;