lcd12864f.h

51单片机控制LCD（12864F）和DS18B20

//12864 汉字显示模块 与MCU连接

sbit RS = P1^4;// 1:输入数据 ；0:输入命令
sbit RW = P1^3;//1:读数据  0:写数据
sbit E = P1^2;
//sbit PSB = P1^1;  //串并口选择 1:并口模式; 0:串口模式;
sbit ak = P1^0;
sbit be = P3^7;
sbit br = P3^5;
//sbit key= P1^3;

#define  LcdData P0

//延时子程序
void delay(unsigned int t)
{  unsigned int i,j;
   for(i=0;i<t;i++)
      for(j=0;j<10;j++);
         
}
//测试LCD忙
bit Check_Busy()
{
    bit busy;
    RS = 0;
    RW = 1;
    E = 1;
      _nop_(); 
    busy = (bit)(LcdData&0x80);
    E = 0;
    return busy;
}
//等待LCD到空闲
void wait()
{
    while(Check_Busy());
}
//写数据
void Lcd_Writedata(unsigned char dispdata)
{  wait();

   RS=1;
   RW=0;
   E=0;
   _nop_();  _nop_();
   LcdData=dispdata;
   E=1;
   _nop_(); _nop_();
   E=0;
}

//写指令代码
void Lcd_WriteCmd(unsigned char cmdcode)
{  wait();
   RS=0;
   RW=0;
 
   E=0;
   _nop_();  _nop_();
   LcdData=cmdcode;
   _nop_(); _nop_();
   E=1;
   _nop_();  _nop_();
   E=0;
}
//初始化LCD
void Lcd_Reset()
{ // PSB=1;
   Lcd_WriteCmd(0x30);       //选择基本指令集
   delay(5); 
   Lcd_WriteCmd(0x0c);       //开显示(无游标、不反白)
   delay(5);
   Lcd_WriteCmd(0x01);       //清除显示，并且设定地址指针为00H
   delay(5);
   Lcd_WriteCmd(0x06);       //指定在资料的读取及写入时，设定游标的移动方向及指定显示的移位
   
}

void WriteStr(unsigned char code *s)
{ 
    while(*s>0)
   {  Lcd_Writedata(*s);
      s++;     
   }
}

void hzDisp()
{ 
   Lcd_WriteCmd(0x80);
   WriteStr(" ");
   Lcd_WriteCmd(0x90);
   WriteStr("系统初始化");
   Lcd_Writedata(0x2e);
   Lcd_Writedata(0x2e);
   Lcd_Writedata(0x2e);
   Lcd_Writedata(0x2e);
   Lcd_Writedata(0x2e);
   delay(20000);
   Lcd_WriteCmd(0x90);
   WriteStr("                ");
      be=0;
   delay(500);
   be=1;
   delay(500);
   be=0;
   delay(300);
   be=1;
   delay(300);
   be=0;
   delay(100);
   be=1;
   delay(100);
   delay(100);
   Lcd_WriteCmd(0x80);
   WriteStr("欢迎使用");    
   Lcd_WriteCmd(0x88);
   WriteStr("  智能家居系统");
   delay(10000);

}