lcd_k51.c

ucosucos系统资料

#include<lcd_k51.h>



/************************************************/
/*             Program for YM12864              */
/************************************************/
void lcd_delay(unsigned int i)
{

while(i--)
  {
    _NOP();
     _NOP();
      _NOP();
       _NOP();
        _NOP();
         _NOP();
          _NOP();
           _NOP();
            _NOP();
             _NOP();
              _NOP();
               _NOP();
                _NOP();
                 _NOP();
                 
  }
}


void instruct(uchar ix)
{
    /* LCD_CTR&=~RS;
     LCD_CTR|=RW;
     LCD_CTR|=E;
    
    do
     {
      _NOP();
   _NOP();
   _NOP();
   _NOP();
   _NOP();
  

     }
     while((LCD_BUS&0x80)!=0);
     */
lcd_delay(5*lcm_clk);
     LCD_CTR&=~RS;
     LCD_CTR&=~RW;
     LCD_CTR|=E;
     LCD_BUS=ix;
     LCD_CTR&=~E;
}
void write_abyte(uchar ox )
{  
   
     /* LCD_CTR&=~RS;
     LCD_CTR|=RW;
     LCD_CTR|=E;
   do
     {
         _NOP();
  _NOP();
  _NOP();
_NOP();
_NOP();
 
     }
     while((LCD_BUS&0x80)!=0); 
   */
     lcd_delay(5*lcm_clk);
     LCD_CTR|=RS;
   LCD_CTR&=~RW;
   LCD_CTR|=E;
   LCD_BUS=ox;
   LCD_CTR&=~E;

}








#ifndef HZ
void dis_hz_str(uchar x, uchar y, uchar *p_hz)
{
     data uchar loc,*p;
     //data uint  xi;
     
     code uchar xline[5]={0,1,3,2,4};
     x=xline[x];
      instruct(home);
     loc=((x<<3)+y-9)|0x80;
     instruct(loc);
     p=p_hz;
    // xi=((*p++)<<8)|*p++;
   // xi=*p++;
     while(*p)
     {
         // write_word(xi);
            write_abyte(*p++);
         // xi=((*p++)<<8)|*p++;
        // xi=*p++;
           // write_abyte(xi);
            // xi=*p++;
     }
}
#endif
void dis_str(uchar x, uchar y, uchar *str)
{
      uchar loc,*p;
     const uchar xline[5]={0,1,3,2,4};
     p=str;
     x=xline[x];
     instruct(home);
     loc=(16*(x-1)+y-1);
     if(loc&0x01)
     {
          loc/=2;
          instruct(loc|0x80);
          write_abyte(' ');
     }
     else
     {
          loc/=2;
          instruct(loc|0x80);
     }
     while(*p)
     {
          write_abyte(*p++);
     }
}
#ifndef BMP
void con_disp (uchar data1,uchar data2,uchar x0,uchar y0,uchar xl,uchar yl)
{
  uchar i,j;
  for(j=0;j<yl;j++)
  {
    for(i=0;i<xl;i++)
    {
     instruct  (0x34);
     instruct  (y0+j);
      instruct (x0+i);
     instruct (0x30);
    write_abyte (data1);
     write_abyte(data2);
    }
  }
 instruct  (0x36);
}
void img_disp (uchar code *img)
{
  uchar i,j;
  for(j=0;j<32;j++)
  {
    for(i=0;i<8;i++)
    {
      instruct(0x34);


      instruct (y1+j);
      instruct(x1+i);
    instruct (0x30);
     write_abyte(img[j*16+i*2]);
      write_abyte(img[j*16+i*2+1]);
      // write_abyte(0x00);
       //write_abyte(0x00);
    }
  }
  for(j=32;j<64;j++)
  {
    for(i=0;i<8;i++)
    {
      instruct(0x34);
    instruct(y1+j-32);
     instruct(x2+i);
    instruct (0x30);
     write_abyte(img[j*16+i*2]);
     write_abyte(img[j*16+i*2+1]);
    //write_abyte(0x00);
      //write_abyte(0x00);
    }
  }
  instruct (0x36);
}

#endif
void initial_screen(void)
{  
     instruct(0x30);
     lcd_delay(10*lcm_clk);
  //  instruct(0x30);
 // lcd_delay(30);
     instruct(dis_on);
  lcd_delay(10*lcm_clk);
    instruct(clear);
    lcd_delay(500*lcm_clk);
     instruct(in_mode);
    lcd_delay(5*lcm_clk);
     instruct(home);
    lcd_delay(500*lcm_clk);
     instruct(0x0c);
     lcd_delay(5*lcm_clk);

}
#ifndef FLT
void itoa_float(float x,unsigned char *str,uchar wei)
{

     int cheng[5]={1,10,100,1000,10000};
     unsigned int n,c,q;
     float f;
     unsigned char chn,*p,str2[20];
     data unsigned char i,j;
     if(x<0)
     {
          *str++='-';
	  x=-x;

     }
     n=(int)x;
      f=x-n;

     n=f*cheng[wei]*10;

     n=n%10;
     if(n>4)
     {n=f*cheng[wei]+1;}
     else
     {n=f*cheng[wei];}
    //n=f*1000;
    q=n;
     p=str2;
     j=0;


     while(n!=0)
     {
          chn=n%10;
	  n=n/10;
	  *p++=chn+'0';
	  j++;
     }
      //n=f*cheng[wei]+1;
        n=q;
      if(n==0)
        {
        for(i=0;i<wei;i++)
                       {
                         *p++='0';
                         j++;
                       }
        }
      else
              {

     while(n<cheng[wei-1])
      {  *p++='0';
          j++;
          n=n*10;
      }

              }
      *p++='.';
      j++;
      n=(int)x;

     //n=n*cheng[wei];

        if(n==0)
        {*p++='0';
        j++;}
       while(n!=0)
     { chn=n%10;
	  n=n/10;
	  *p++=chn+'0';
	  j++;
     }

     c=j;
     if(j!=0)
     {
          p--;
	  for(i=0;i<j;i++)
               *str++=*p--;
         // *str++=' ';
         // *str++=' ';
     }
     else
     {
          *str++='0';
         // *str++=' ';
         // *str++=' ';
     }


     *str=0;

     return;

}
#endif
void itoa(int x,unsigned char *str)
{
     unsigned int n;
     unsigned char chn,*p,str1[8];
      unsigned char i,j;
     if(x<0)
     {
          *str++='-';
	  x=-x;
     }
     n=x;
     p=str1;
     j=0;
     while(n!=0)
     {
          chn=n%10;
	  n=n/10;
	  *p++=chn+'0';
	  j++;
     }
    
     if(j!=0)
     {
          p--;
	  for(i=0;i<j;i++)
               *str++=*p--;
         // *str++=' ';
         // *str++=' ';
     }
     else
     {
          *str++='0';
         // *str++=' ';
         // *str++=' ';
     }
     *str=0;

     return;
}