lcd.c

基于T6963C控制器显示屏的驱动程序

//file name : LCD.c
//author:abin
//date:2007.1.18
//about:T6963c 240*128
#include "lcd.h"

void checkready01( void ) //
{
	while(1)
		if ((COMLCD & 0x03) == 0x03)
		   break;
}
void checkready3( void )
{
	while(1)
		if ((COMLCD & 0x08) == 0x08)
			break;
}
void write2(unsigned char para1,unsigned char para2,unsigned char constdat)
{
	checkready01();
	DATLCD = para1;
	checkready01();
	DATLCD = para2;
	checkready01();
	COMLCD = constdat;
}
void write1(unsigned char para1,unsigned char constdat)
{
	checkready01();
	DATLCD = para1;
	checkready01();
	COMLCD = constdat;
}
void write(uchar constdat)
{
	checkready01();
	COMLCD = constdat;
}
void ucwrite(uchar constdat)
{
	DATLCD = constdat;
}
void LCD_Initial( void )
{
        unsigned int mcount = 0;	
	    write2( 0,0x0,0x24);	//set the point address 
		write( 0xB0 );  //auto write		
		do
	    {
		  checkready3();
		  ucwrite(0x0);
          mcount ++;
        }while(mcount <= 0x1fff);
		write( 0xB2 ); //end auto operation
		
        write( 0x80 );       //mode or
		
	    write2( 0,0x0,0x40); //text address
	    write2( 30,0,0x41);  //text width		
		
		write2( 0,0x10,0x42);  //graph address
	    write2( 30,0,0x43);   //graph width
		
	    write2( 0,0x0,0x24);	//set the point address 
    
      	write(0x9f);
		
		write2( 0x1f,0,0x22); 
   	    write2( 0,0x0,0x24); //set the point address
		write( 0x80 ); //mode or
}
//function name:LCD_Set_Curse()
//date:07.1.18
//author:
//about:x,y  coordinate of the curse.size: height of the curse
//------>y
//|
//|
//V  x
void LCD_Set_Curse(unsigned char x,unsigned char y, unsigned char size)
{
	write(DISPLAY|CURSE_ON|CURSE_FLASH);
	write2(y%30,x%16,0x21);
	write(0xa0+size%7);
}
void LCD_Clear(void)
{	
	unsigned int mcount = 0;
  	write2( 0,0x0,0x24);	//set the point address 
	write( 0xB0 );  //auto write		
	do
	{
		checkready3();
		ucwrite(0x0);
        mcount ++;
     }while(mcount <= 0x1fff);
	write( 0xB2 ); //end auto operation
	write(DISPLAY);
}
void LCD_Clear_Text(void)
{
    unsigned int  mcount = 0;
    write2( 0,0,0x40);
	write2( 0,0,0x24);
	write( 0xB0 );    
	do
	{
		checkready3();
		ucwrite( 0 );
        mcount ++;
    }while(mcount <= 0xfff);
    write( 0xB2 );     
}
void Put_Text(unsigned char x,unsigned char y,unsigned char dat)
{
    unsigned int ii = x*30+y;
    write2( 0,0,0x40);//文本区首地址设置
	write2(ii%256,ii/256,0x24);
    write1(dat-0x20,0xc0);
}
void Put_Text_Str(unsigned char x,unsigned char y, unsigned char const *addr)
{	
	unsigned int ii = x*30+y;
    write2( 0,0,0x40);//文本区首地址设置
	write2(ii%256,ii/256,0x24);
	write( 0xB0 ); 
	while(*addr != '\0')
	{
		checkready3();
		ucwrite( *addr-0x20 );
		addr++;
    }
	write( 0xB2 ); 
}
void Put_Text_Int(unsigned char x,unsigned char y,unsigned int dat,unsigned char length)
{
	unsigned char i,temp[5];
	for(i=5;i>0;i--)
	{
		temp[i-1]=dat%10+0x30;
		dat = dat/10;
	}
	for(i=5-length;i<5;i++)
	{
		Put_Text(x,y,temp[i]);
		y++;
	}
}
//about:x:0~15,y:0~29,mode
void Put_Char(unsigned char x, unsigned char y,unsigned char width, unsigned char const *addr,unsigned char mode)
{
	unsigned char linex,i=16;// 
	unsigned int ii;
	//linex = x*8;
	linex = x;
	while(i--)
	{	
		ii = 0x1000+linex*30+y;
		write2(ii%256,ii/256,0x24);
		if(mode == 0xff)
			write1(~(*addr++),0xc0);
		else
			write1(*addr++,0xc0);
		if(width==16)
		{
			if(mode == 0xff)
				write1(~(*addr++),0xc0);
			else
				write1(*addr++,0xc0);
		}
		linex++;
	}
}
void Put_Str(unsigned char x,unsigned char y,const char *str,unsigned char mode)
{
	unsigned char i=0,j; 
	unsigned char const *addr;
	while(str[i]!= '\0')
	{
		if(str[i]>0x80)
		{
			//temp= ((unsigned int)str[i])<<8 + ((unsigned int)(str[i++]));
			for(j=0;j<HANZI_COUNT;j++)//查找汉字索引
			{
				if(Hanzi_Index[2*j] == str[i] && Hanzi_Index[2*j+1] == str[i+1])
				{
					addr = hanzi + 32*j;					
					break;
				}	
			}
			if(j<HANZI_COUNT)
				Put_Char(x,y,16,addr,mode);//显示汉字
			else
			{
				Put_Char(x,y,8,ASIC,0xff);
				Put_Char(x,y+1,8,ASIC,0xff);
			}
			i+=2;
			y+=2;
			if(y>29)
			{
				x++;
				y = 0;
			}
		}
		else
		{
			Put_Char(x,y,8,(ASIC + (str[i]%0x80 - ' ')*16 ),mode);
			i++;
			y++;
			if(y>29)
			{
				x++;
				y = 0;
			}
	
		}
	}
}
void Put_Int(unsigned char x,unsigned char y,unsigned int dat,unsigned char length,unsigned char mode)
{
	unsigned char i,temp[5];
	for(i=5;i>0;i--)
	{
		temp[i-1]=dat%10;
		dat = dat/10;
	}
	for(i=5-length;i<5;i++)
	{
		Put_Char(x,y,8,ASIC+('0'-' '+temp[i])*16,mode);
		y++;
	}
}

/*
T---------->x
|
|
|
V  y
modify:2007.3.28
*/
void LCD_Display_Graph(unsigned char x,unsigned char y,unsigned int height,unsigned char width,unsigned char *addr)
{
	unsigned int ii;
	unsigned char xx,yy,hh,ww;
	for(hh = 0;hh<height;hh++)
	{
		yy = y+hh;
		xx = (x+7)/8;
		ii= 0x1000+yy*30+xx;
		ww = ((width+7)/8)%30;
		write2(ii%256,ii/256,0x24);
		write( 0xB0 ); 
		while(ww--)
		{
			checkready3();
			ucwrite( *addr++ );
		}
		write(0xB2);
	}
}