lcd12864_1.c

51开发环境

//=====================================================================
//               LCD12864  液晶显示技术I
//               Make Time: 2008-4-8
//=======================================================================

#include <reg52.h>
#include  <string.h>

#define uchar unsigned char
#define uint  unsigned int
#define ulong unsigned long

//=======引脚定义==================

sbit lck = P3^5;//锁存信号

//======常用命令及参数定义==========
#define DISPON     0x3f
#define DISPOFF    0x3e
#define DISPFIRST  0xc0
#define SETX       0x40
#define SETY       0xb8
#define LCDBUZY    0x80
#define L          0x00
#define R          0x40
#define LIMIT      0x80
#define LINE       16 // 设置最多一行可以显示多少字符（1~~16）


//========全局变量===============
code uchar pixel[8]={0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80};
uchar  cbyte;
uchar data statu;
bit xy; // the position variable
uchar charNum=1; 
//this named charNum  variable recorded the char position,the whole screen can write 56 characters
//one line can be written 14 characters 

//=========汉字序列定义
#define HZ_TIAN '~'+1
#define HZ_DAO  '~'+3
#define HZ_CHOU '~'+5
#define HZ_QIN  '~'+7


//=========函数声明============
void WrL(uchar x);
void WrR(uchar x);
void Lcmcls(void);
void delay1s(void);
void Lcminit (void);
void Putpicture(uchar flag);
void delay(unsigned int time);
void VtoH8x16change(uchar *hzbuf);
void Puthalf(uchar *strch,uchar row,uchar col);
void Wrdata(uchar x,uchar row,uchar col);
void Locatexy(uchar row,uchar col);
void vWrite8x16Character(uchar *ch,uchar row,uchar col,bit flag);
void vWrite8x16String(uchar  *str,uchar col, uchar row, bit flag);


extern uchar  code picture1[];
extern uchar  code picture2[];
extern uchar  code  char_Table[95][16];



struct    //时间结构体
{
  unsigned char hour; //0~23
  unsigned char min;  //0~59
  unsigned char sec;  //0~59
  unsigned int  msec; //0~999
  unsigned int  speeder; // define the speed yourself in interrupt program
  unsigned long allsec; //3600*hour+60*min+sec
   
}time;
//;***************************************************************
//;     Name :  InitialMain()
//;     Usage:  to do some initial work before enter the game 
//;***************************************************************
void InitialMain(void)
{
  /* set initail time */
  time.hour=0;
  time.min=0;
  time.sec=0;
  time.msec=0;
  time.allsec=0;  
  TMOD=0x11;
  EA=1;
  ET0=1;
  TR0=1;
  ET1=1;
  TR1=1;
  PT1=0;PT0=1;

}


//============================================
//  Usage： print the character in format
//=============================================
void Printc(uint chr)
{
  uchar  lie,hang;
  hang=(charNum-1)/LINE;
  hang=hang*2;
  lie=(charNum-1)%LINE;
  lie=8*lie;   
  vWrite8x16Character(char_Table[chr-' ' ],hang,lie,0);  
  charNum++; //add one every time you write a character

}

//=============================================
//      name :  Prints(uchar *str)
//      usage:  print a stream in format 
//=============================================
void  Prints(uchar *str)
{
  while(*(str)!='\0' )
   {     // 一些格式的处理
           if(*(str)=='\n' )   //回车处理
      {
       charNum=(charNum+15)/16;
       charNum=charNum*16+1;
       str++;
       if(*(str)=='\0' ) return;
      }
      
         if(*(str)=='\r' )   //跳到所在行的行头
      {
       charNum=(charNum+15)/16;
       charNum=(charNum)*16-15;  
       str++;   
       if(*(str)=='\0' ) return;
      }        
      
      
       Printc(*(str));
      str++;

    
   }


}

//================================================
//  Name : Format(uchar *str)
//  usage: this function is printing some format
//         格式化显示字符串           
//=================================================
void Format(uchar *str )
{ 
  
     if(*(str)=='\n' )   //回车处理
      {
       charNum=(charNum+15)/16;
       charNum=charNum*16+1;  
       return;
      }
      
     if(*(str)=='\r' )   //回到本行头
      {
       charNum=(charNum+15)/16;
       charNum=charNum*16-15;  
       return;
      }
      
     if(*(str)=='\p' )   //回到上一行头
      {				
       charNum=(charNum+15)/16;
       charNum=charNum*16-31;  
       return;
      } 
      
     if(*(str)=='\b' )   //退格，并删除 
      {				
       charNum--;
       Prints(" " );
       charNum--; 
       return;
      }   
}

//================================================
//   名称： Printd(int integer)
//   功能： just can display -32768~~~32768
//================================================
void Printd(int integer)
{
  if(integer==0) 
  {Printc('0' );return;}
  
  {char i,j;
   char lenth[6];
   if(integer<0)
      {lenth[5]=1;integer=-integer;} //负数
   else
      lenth[5]=0; //正数
             
      lenth[4]=integer%10;  
      integer/=10;
      lenth[3]=integer%10;  
      integer/=10;
      lenth[2]=integer%10;  
      integer/=10;
      lenth[1]=integer%10;        
      lenth[0]=integer/10;
     
      i=0;
      while(i<5)
      {
        if( lenth[i]!=0)
        { j=i;
          break;
        }
        i++;
      }
      
    //display in lcd12864     
    if(lenth[5]==1) Printc('-' );       
    for(i=j;i<5;i++)
    { Printc(lenth[i]+'0' ); }                                   
       
  
  } 
  
 
}


//=================================================================
//     名称： DisplayInLine(*str)
//     功能： 在某一行，流动显示一个句子
//     参数： str是要显示的句子，thisLine为显示行的行首位置
//=================================================================
void  DisplayInLine(uchar* str,uchar thisLine)
{
      static uint i,j;     
        if(j<i+15)  //+15
          {
           
            Printc(  *(str+j) ); 
             j++;              
          }
        else
         { 
             j=i; charNum=thisLine; 
         
              if(i<strlen(str)-16)  //-15
              {
               i++;
              }
            
              else
              i=0;          
          }  
         

               
}


//====================================================================
//   显示一张128*64 的函数
//   参数: pictureName 是你需要显示的图片数组名称,可以放在外部文件
//====================================================================
void DrawPicture(uchar* pictureName)
{
   unsigned char i,j,row, col ;
   unsigned int x;
   row = 0; col=0;
    for(j=0;j<128;j++){
     x=j*0x08; 
     for(i=0;i<8;i++)
      {
          cbyte=*(pictureName+x);
          Wrdata(cbyte,row,col);
          x++;
        row++;
      }   
     row=0;
     col++;    
    }  
      
}


//=============================================
//   SetPixel(uchar x, uchar y)
//    0<x<128 , 0<y<64
//=============================================
SetPixel(uchar x, uchar y)
{
  uchar pixeler;
  pixeler=pixel[y%8];
    y=y/8;
  Wrdata(pixeler,y,x);
}

//=============================================
//
//==============================================
/*
void Line(uchar x0, uchar y0, uchar x1, uchar y1)
{
    float k; //斜率
    float x;
    uchar y; // 点坐标
    int buf;
    if(x0)
    if(x0>x1)  //起点的X坐标要是较少的
    {
       buf=x0;
       x0=x1;
       x1=buf;
       buf=y0;
       y0=y1;
       y1=buf;

    }

    if(x1!=x0)
    k=(float)(y1-y0)/(x1-x0);
    else
    k=9999;

    for(x=x0;x<x1;x+=0.01)
    {   y=k*(x-x0)+y0;
       SetPixel(x,y);
    }

}*/



//===================================================
//                 主函数
//===================================================
void main(void)
{  
  // 你可以增加任意长度的英文单词，程序会循环显示
  code uchar introduce[]=
   "Hello,Welcome to ## 51kaifa ##  ^_^   "
   "This sentance is used for testing the moving LCD."
   "Firstly,you must know the principle of LCD driver."
   "Secondly,you can add the code here, what ever enlish characters!! "
   "Welcome contacting me with my email: [e-mail] "
   ;
     void  wait();
     ulong disdplayLenth=4500;   //设置你需要显示这句子的长度
     uchar temp1,temp2; //临时变量，用于各种运算          
      TMOD=0x11; //开启计数器，在中断部分计算时间变量
      ET0=EA=1;
      TR0=1;
      // 初始化时间结构成员
      time.hour=11;
      time.min=11;
      time.sec=11; 
    
    Lcminit(); //初始化LCM
    Lcmcls();
                      
     DrawPicture(picture2); //显示载入界面图  
     delay1s();
     charNum=37;
     Prints("Loading..." ); //显示Loading..字样    
     
      charNum=49;
     while(charNum<65)   
     {Prints(" " );}   //清理最后一行，用来显示进度条
     
     charNum=49;
     while(charNum<65)   
     {Prints(">" ); delay(20000);} //进度条用>>>>>>>>>
   
     Lcmcls();
     charNum=23;
     Prints("^_^           " );
     Printc(HZ_TIAN   ); //输出一个汉字需要两个字节
     Printc(HZ_TIAN+1 ); 
     Printc(HZ_DAO    ); //输出一个汉字需要两个字节
     Printc(HZ_DAO+1  );
     Printc(HZ_CHOU   ); //输出一个汉字需要两个字节
     Printc(HZ_CHOU+1 );  
     Printc(HZ_QIN    ); //输出一个汉字需要两个字节
     Printc(HZ_QIN+1  ); 
     wait();
  
   Lcmcls();
   charNum=1;  //记录屏幕中字符的位置变量,令它归1
   
   while(disdplayLenth--)
    {      
      DisplayInLine(introduce,1);
    }
   Lcmcls();
   Format("\n" );
   Prints(" you have taken " );
   temp1=time.sec;
   Printd(temp1-11);
   Prints(" seconds since beginning C51." );   //计算处从你开机到现在用了多少秒 
   
   while(time.sec-temp1<4)  //wait 4 second
   
   ;
   Lcmcls();
   
   charNum=1;
   Prints("===============" );
   charNum=49;
   Prints("===============" );
   while(1)
   {
      charNum=18;
      Prints("TIME NOW IS_      " );
      if(time.hour<10) Printd(0);
      Printd(time.hour);
      Prints(":" );
      if(time.min<10) Printd(0);
      Printd(time.min);
      Prints(":" );
      if(time.sec<10) Printd(0);
      Printd(time.sec);
      
    }   
     
     


}


/***************约1S延时********************/
void delay1s(void)
{
    delay(50000);
    delay(50000);
    

}
/***************用于测试的延时子程序********************/
void wait()
{
  delay(50000);
  delay(50000);
  delay(50000);
  delay(50000);
  delay(50000);
}

//***************************************************************
//     Name : Ontimer0()
//     Usage: to count some time register and do some time-work
//****************************************************************
void OnTimer0(void) interrupt 1  // using as 
{
 
  TH0=(65535-1000)/256;
  TL0=(65535-1000)%256;                     
//  handle some time work code here...
   time.msec++;
  if(time.msec>999)
  {
    time.msec=0;
    time.sec++;
    time.allsec++;
    // time.allsec records the seconds time 
   // that since the program is start 32bit large~~136 years' seconds
  }
  
  if(time.sec>59)
  {
     time.sec=0;
     time.min++;
  }
       
        
}


/***************微秒级延时*****************/
void delay(unsigned int  time)
{ unsigned int i;
    for(i=0;i<time;i++);
 }



//***********初始化LCD*******************/

void Lcminit (void)
{ 
    cbyte=DISPOFF;
    WrL(cbyte);
    WrR(cbyte);
    cbyte=DISPON;
    WrL(cbyte);
    WrR(cbyte);
    cbyte=DISPFIRST;
    WrL(cbyte);
    WrR(cbyte);
    Lcmcls();
    Locatexy(0,0);
}

/***************LCD清屏********************/
void Lcmcls(void)
{ uchar  i,j;
    for(i=0;i<8;i++){
      delay(6);
        for(j=0;j<LIMIT;j++){
          delay(6);
          Wrdata(0x0,i,j);
         }
     }
}

/**************写左区***************/

void WrL(uchar x)
{
   
   P0=0xFF;//P0口送FF，准备读
   lck = 0;
   P1 = 0x2a;//ELCD=1