lcd_12864.h

拼音输入法,通过单片机实现

//********************************** 延时子程序***************************

void delay(uint t)             
{
        uint i,j;
        for(i=0;i<t;i++)
                for(j=0;j<10;j++);
}

//*******************************写命令到LCD***************************

void write_cmd(uchar cmd)  
{

        DI=0; RW=0;
        LCD_BUS=cmd;
        E=1;
        E=0;
}


//************************写数据到LCD******************************


void point(uchar x,uchar y)
{
  uchar y1,y2,pp;
  uchar datain;
  
  pp=1;
  y1=y>>3;
  y2=y%8;
  pp=pp<<y2;
  
  if (x<64)
  {
    CS2=1;
	CS1=0;
	write_cmd(PAGE+y1);
    write_cmd(COL+x);  
    datain=read_data();
    write_cmd(PAGE+y1);
    write_cmd(COL+x);
    delay(10);
    datain=read_data();

    write_cmd(PAGE+y1);
    write_cmd(COL+x);
    datain=datain|pp;
    write_data(datain);
  }
  else
  {

    CS2=0;
	CS1=1;
	write_cmd(PAGE+y1);
	write_cmd(COL+x-64);
    datain=read_data();
    write_cmd(PAGE+y1);
    write_cmd(COL+x-64);
    delay(10);
    datain=read_data();

    write_cmd(PAGE+y1);
    write_cmd(COL+x-64);
    datain=datain|pp;
    write_data(datain);
  }
  

  
}



void pointb(uchar x,uchar y)
{
  uchar y1,y2,pp;
  uchar datain;
  
  pp=1;
  y1=y>>3;
  y2=y%8;

  pp=~(pp<<y2);
  
  if (x<64)
  {
    CS2=1;
	CS1=0;
	write_cmd(PAGE+y1);
    write_cmd(COL+x);  
    datain=read_data();
    write_cmd(PAGE+y1);
    write_cmd(COL+x);
    delay(10);
    datain=read_data();

    write_cmd(PAGE+y1);
    write_cmd(COL+x);
    datain=datain&pp;
    write_data(datain);
  }
  else
  {

    CS2=0;
	CS1=1;
	write_cmd(PAGE+y1);
	write_cmd(COL+x-64);
    datain=read_data();
    write_cmd(PAGE+y1);
    write_cmd(COL+x-64);
    delay(10);
    datain=read_data();

    write_cmd(PAGE+y1);
    write_cmd(COL+x-64);
    datain=datain&pp;
    write_data(datain);
  }
  

  
}
void write_data(uchar dout)  
{

        DI=1; RW=0;
        LCD_BUS=dout;
        E=1;
        E=0;
}






//***************************读LCD数据********************************** 
 
uchar read_data()  
{
		uchar din;
		LCD_BUS=0xff;
		DI=1; RW=1;
		E=0;
		E=0;
		E=1;
		E=1;
		E=1;
		din=LCD_BUS;
		return din;        
}




//****************************清除内存******************************************

void cls()  
{
        uchar j,k;
        CS2=1;CS1=0;
        for(k=0;k<8;k++)
        {
                write_cmd(PAGE+k);
        	    write_cmd(COL);       //列地址0
	            for(j=0;j<64;j++)     //列地址自动加一
	                    write_data(0x00);
         }
	     CS2=0;CS1=1;
	     for(k=0;k<8;k++)
	     {
	            write_cmd(PAGE+k);
	            write_cmd(COL);           //列地址0
	            for(j=0;j<64;j++)         //列地址自动加一
		                write_data(0x00);
  }
}




    




void display(uchar page,uchar col,uchar code *str,uchar n)  
{
			
		uchar j=0,i=0;
		if(col<64)
		{
		        CS2=1;CS1=0;
		 }
		else
		{
		        CS2=0;CS1=1;
				col=col-64;
		}
		for(j=0;j<2;j++)
		{
			    write_cmd(PAGE+page+j); write_cmd(COL+col);
			    for (i=0;i<16;i++)
		        write_data(str[n*32+16*j+i]);
		}
}


/*

//*******************************指定位置显示汉字16*16****************************

void disp_str(uchar page,uchar col,uchar code *str,uchar n)  
{
			
		uchar j=0,i=0;
		for(j=0;j<2;j++)
		{
			    write_cmd(PAGE+page+j); write_cmd(COL+col);
			    for (i=0;i<16;i++)
		        write_data(str[n*32+16*j+i]);
		}
}
//**********************************反显程序**************************************

void cpl_disp_str(uchar page,uchar col,uchar code *str,uchar n) 
{
  
		uchar j=0,i=0;
		for(j=0;j<2;j++)
		{
			    write_cmd(PAGE+page+j); write_cmd(COL+col);
			    for (i=0;i<16;i++)
		                write_data(~str[n*32+16*j+i]);
		}
}




//*******************************显示ASCII码程序**********************************
void disp_ascII(uchar page,uchar col,uchar code *english,uchar n)
{
		uchar j,i;
		for(j=0;j<2;j++)
		{
			    write_cmd(PAGE+page+j);write_cmd(COL+col);
			    for(i=0;i<8;i++)
			            write_data(english[n*16+8*j+i]);
		}
}
*/

												
//**************************************************************************
void displaye(uchar page,uchar col,uchar code *english,uchar n)
{
		uchar j,i;
		if(col<64)
		{
		        CS2=1;CS1=0;
		 }
		else
		{
		        CS2=0;CS1=1;
				col=col-64;
		}
		for(j=0;j<2;j++)
		{
			    write_cmd(PAGE+page+j);write_cmd(COL+col);
			    for(i=0;i<8;i++)
			            write_data(english[n*16+8*j+i]);
		}
}
/*
void cpl_disp_ascII(uchar page,uchar col,uchar code *english,uchar n)
{
		uchar j,i;
		for(j=0;j<2;j++)
		{
			    write_cmd(PAGE+page+j);write_cmd(COL+col);
			    for(i=0;i<8;i++)
			            write_data(~english[n*16+8*j+i]);
		}
}

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

void init()  
{
		delay(100);
		CS2=1; CS1=0;
		delay(100);
		write_cmd(DISP_OFF);
		write_cmd(PAGE);
		write_cmd(START_LINE);
		write_cmd(COL);
		write_cmd(DISP_ON);
		CS2=0; CS1=1;
		delay(100);
		write_cmd(DISP_OFF);
		write_cmd(PAGE);
		write_cmd(START_LINE);
		write_cmd(COL);
		write_cmd(DISP_ON);
}