iic.h.new

单片机密码-24c01-12864-4x4按键扫描 初始密码是123456,按#确认 进入后,按*修改密码

#define uchar unsigned char 
#define uint unsigned int
#define AddWr 0xa0	      //器件地址选择及写标志
#define AddRd 0xa1		  //器件地址选择及读标志

/*有关全局变量*/
sbit Sda=P2^6;	      //at24c08的SDA与P3.7相连
sbit Scl=P2^5;	      //at24c08的SCL与P3.6相连
// sbit LOAD  = P3^1;	  //MAX7219的LOAD与P3.1相连
// sbit DIN = P3^0;	  //MAX7219的DIN与P3.0相连
// sbit CLK = P3^2;	  //MAX7219的CLK与P3.2相连

void WrToROM(uchar Data[],uchar Address,uchar Num);

void RdFromROM(uchar Data[],uchar Address,uchar Num);