//#define unsigned char unsigned char
//#define uint  unsigned int

sbit RS=P2^0;  
sbit RW=P2^1;  
sbit E=P2^2;
//sbit Spk=P1^3;//speaker
////延时函数//////////
void msec(unsigned int x)    
  {
  unsigned char j;
  while(x--)
  {
      for (j=0;j  <125;j++)
      {;}
  }
  }

//液晶配置函数
void  configure(unsigned char com)  //com配置参数,初始化时需要配置若干次
  {
    unsigned char m; 
    RS=0;
    RW=1;
do
  {
    DB=0x0ff;
    E=1;
    m=DB;
    E=0;
    m=m&0x80;
    }
while (m==0x80);  
    RW=0;
    DB=com;
    E=1;
    E=0;    
}
//写数据函数
void writeData(unsigned char buf)
{
    unsigned char m; 
    RS=0;
    RW=1;
do
  {
    DB=0x0ff;
    E=1;
    m=DB;
    E=0;
    m=m&0x80;
    }
while (m==0x80); 

          RS=1;
              RW=0;
              DB=buf;
              E=1;
              E=0;
}
//---------------------------------

//显示函数  

void  printchar(unsigned char row,unsigned char col, buf )
{

        unsigned char cod;
    unsigned char m;
        cod=0x80;
        if(row==1) cod=cod+0x40;
    if(row==2) cod=cod+0x14;
        if(row==3) cod=cod+0x54;
        cod=cod+col;
        //cod=0x80 + 0x10 * row + col/2; 
    configure(cod);
          RS=0;
          RW=1;

      do
        {
          DB=0x0ff;
          E=1;
          m=DB;
          E=0;
          m=m&0x80;
        }
      while (m==0x80);  
          RS=1;
              RW=0;
              DB=buf;
              E=1;
              E=0;
}

//--------------------------

void  print(unsigned char row,unsigned char col,char * buf,unsigned char len )//行，列
{
        unsigned char i;
        unsigned char cod;
    unsigned char m;
        cod=0x80;
        if(row==1) cod=cod+0x10;
    if(row==2) cod=cod+0x08;
        if(row==3) cod=cod+0x18;
        cod=cod+col;
        //cod=0x80 + 0x10 * row + col/2; 
    configure(cod);  
    for(i=0;i  <len;i++)
    {
          RS=0;
          RW=1;

      do
        {
          DB=0x0ff;
          E=1;
          m=DB;
          E=0;
          m=m&0x80;
        }
      while (m==0x80);  
          RS=1;
              RW=0;
              DB=buf;
              E=1;
              E=0;
      // msec(0x10);
          }
}

void LcdIni()
{

  DB=0x30;
  RS=0;
  RW=0;
  msec(0x15); 
          DB=0x38;
  E=1;
  E=0;
  configure(0x01);
  configure(0x0c);
  configure(0x06);
    print(1,2,"陕西创新", strlen("陕西创新"));
        print(2,0,"科技有限公司", strlen("科技有限公司"));
    msec(1000);
        configure(0x01);//清屏
        msec(2000);
                //        msec(100);
                        //        configure(0x01);      //清除显示，并且设定地址指针为00H
                                  print(0,0,"名称:", strlen("名称:"));
                                print(0,5,"型号", strlen("型号"));
                                print(2,0,"电压:", strlen("电压:"));
                                print(3,0,"状态:", strlen("状态:"));
                                print(1,0,"方向:", strlen("方向:"));
}

//单片机初始化：
void InitialCpu()  
{
  //开串行中断 
    ET0=1;    //开定时中断0
    ET1=0;    //关定时中断1
    ES=1;    //开串行中断
    EX0=0;    //开外部中断0
    EX1=0;    //开外部中断1
    EA=1;    //中断允许
    IP=0x00;  //中断优先级

  //串行中断设置：
  SCON=0x50;  //SM0 SM1 SM2 REN =0101,模式1,允许接收;

    //假设波特率19.2k,晶震为11.059M.
      PCON=PCON | 0x80; //SMOD=1;
      TMOD=0x21 ; //定时器1工作模式2,8位自动重装.当溢出后自动装载TH1到TL1.定时器1工作模式1：16位
      TL1=0xFD;
      TH1=0xFD;  //初值
      TR1=1;      //启动订时器
        TR0=1;        
      TL0=76;    //50毫秒定时
      TH0=247;  //初值
}

void Timer0() interrupt 1
{
        static unsigned int  Timer0i=0;
        Timer0i++;
        if(Timer0i==20)
        {
                        Timer0i=0;
                        TL0=76;    //50毫秒定时
                      TH0=247;  //初值                
        }
                        
}
//键盘键值获取Get_Key值
void kk()
{
        switch(Get_Key)
                        {
                        case 1:        configure(0x85);        
                                        configure(0x0d);
                                        TR0=0;
                                        key1++;
                                if(key1>  4)
                                {
                                        key1=0;
                                
                                }
                                else //利用一个按键实现3种不同内容显示，
                                {
                                        if(key1==1)
                     ......

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