hex_1.c

st7920 128*64测试程序sbit RS = P1^0 sbit RW = P1^1 sbit E = P1^2

            write_com(x+0x80);     //列地址
            write_com(0x30);
            write_data(k);
            write_data(k);
           };
         }
     write_com(0x34);                          
   write_com(0x36);
}
/*------------------显示边框-------------------------------*/
void Frame()
{unsigned char x,y;
          lcdfill(0x00);
        for(x=0;x<9;x+=8)
          for(y=0;y<32;y++)
           { write_com(0x36);
            write_com(y+0x80);      //行地址
            write_com(x+0x80);        //列地址
            write_com(0x30);
            write_data(0x80);
            write_data(0x00);
           
            write_com(0x36);
            write_com(y+0x80);      //行地址
            write_com(x+0x87);        //列地址
            write_com(0x30);
            write_data(0x00);
            write_data(0x01);
            
            }
      for(y=0;y<2;y++)
         for(x=0;x<8;x++)
           {write_com(0x36);
            write_com(y*31+0x80);      //行地址
            write_com(x+0x80+8*y);        //列地址
            write_com(0x30);
            write_data(0xff);
            write_data(0xff);
           }
         write_com(0x34);
         write_com(0x36);
                    }
 
/*------------------在第7列的位置加入两条竖线--------------------------*/
void shuxian()
{ unsigned char x,y;
    
    for(x=0;x<9;x+=8) 
       for(y=0;y<32;y++)
          { write_com(0x36);
            write_com(y+0x80);    //行地址
            write_com(x+0x86);     //列地址
            write_com(0x30);
            write_data(0x00);
            write_data(0x14);
          };
}    
           
/*------------------清屏命令--------------------------*/  
 void clrscreen()
 { 
   write_com(0x01);
   delay(10);
   }
   
/*------------------唐诗《静夜思》--------------------------*/
void gushi_display()
{  write_com(0x30);
   clrscreen();  
   write_com(0x80+FIRST_ADDR);
   hzkdis("床前明月光，");
   write_com(0x90+FIRST_ADDR);
   hzkdis("疑是地上霜。");
   write_com(0x88+FIRST_ADDR);
   hzkdis("举头望明月，");
   write_com(0x98+FIRST_ADDR);
   hzkdis("低头思故乡。");
   write_com(0xb3+FIRST_ADDR);
   hzkdis("静夜思");
   write_com(0xaa+FIRST_ADDR);
   hzkdis("( 唐 )李白");
}
 
main()
{ unsigned char i; 
  //RES=0;
  //delay(100);
  // RES=1;
   while(1)
   { 
     RW=0;
      lcdreset();                    //初始化LCD屏
      CGRAM();                        
      ceshi();                      //显示测试字样
     delay(1000);


    
      clrgdram();
     clrscreen();                  //清屏
//     Disp_Img(BMP);               //调入一幅图画
//      delay(10000);

     Disp_Img(BMP1);               //调入一幅图画
      delay(10000);
    while(1);            
      //while(1);
      
                     
     lcdfill(0xff);               //显示全开
      delay(20000);            
    
     Disp_H_Line();                //显示横条
       delay(20000);
      
      
       lcdfill(0xaa);               //显示竖条 
      delay(20000);
     
      Frame();                     //显示边框
      delay(20000);
      
     gushi_display();             //显示唐诗
      clrgdram();
           
     write_com(0x87);          //调用自定义的CGRAM的代码
     write_data(0x00);
     write_data(0x00);
     delay(400);
      
      shuxian();              //加入两条竖线
      delay(8000);
      write_com(0x30);
       delay(1000); 
             
      gushi_display(); 
      delay(6000);
      for(i=0;i<8;i++)        //字符循环左移
     {write_com(0x18);  
        delay(20000);} 
          
       gushi_display(); 
      delay(6000);   
     write_com(0x36);        
      write_com(0x04);          //第一行反白显示
      delay(20000);
      write_com(0x04);          //第一行恢复正常
      delay(20000);
       write_com(0x05);          //第二行反白显示
      delay(20000);
      write_com(0x05);          //第二行恢复正常
      delay(20000);
          
      write_com(0x03);         //垂直滚动屏幕的内容
      write_com(0x60);
      delay(20000); 
      
   }
}


/*
      clrgdram();
     clrscreen();                  //清屏
     Disp_Img(BMP);               //调入一幅图画
      delay(10000);
                     
     lcdfill(0xff);               //显示全开
      delay(20000);            
    
     Disp_H_Line();                //显示横条
       delay(20000);
      
      
       lcdfill(0xaa);               //显示竖条 
      delay(20000);
     
      Frame();                     //显示边框
      delay(20000);
      
     gushi_display();             //显示唐诗
      clrgdram();
           
     write_com(0x87);          //调用自定义的CGRAM的代码
     write_data(0x00);
     write_data(0x00);
     delay(400);
      
      shuxian();              //加入两条竖线
      delay(8000);
      write_com(0x30);
       delay(1000); 
             
      gushi_display(); 
      delay(6000);
      for(i=0;i<8;i++)        //字符循环左移
     {write_com(0x18);  
        delay(20000);} 
          
       gushi_display(); 
      delay(6000);   
     write_com(0x36);        
      write_com(0x04);          //第一行反白显示
      delay(20000);
      write_com(0x04);          //第一行恢复正常
      delay(20000);
       write_com(0x05);          //第二行反白显示
      delay(20000);
      write_com(0x05);          //第二行恢复正常
      delay(20000);
          
      write_com(0x03);         //垂直滚动屏幕的内容
      write_com(0x60);
      delay(20000);
*/