lcd_test.h

pt24018_lcd控制器在linux-2.4.19下的驱动程序

//走横程序i为页地址这里是  0xb0~0xb8, j为seg数，这里是128,循环时修改起始行即可
/*
void lcd_line1(void)				
{
	unsigned char i,j;
	for (i=0;i<32;i++)
	{
		for (j=0;j<240;j++)
			{
				write_dat(0x00);
			 }
		for (j=0;j<240;j++)
			{
				write_dat(0x1f);
			 }
		for (j=0;j<240;j++)
			{
				write_dat(0x1f);
			 }
		for (j=0;j<240;j++)
			{
				write_dat(0x1f);
			 }

	}
}
void lcd_line2(void)				
{
	unsigned char i,j;
	for (i=0;i<32;i++)
	{
		for (j=0;j<240;j++)
			{
				write_dat(0x1f);
			 }
		for (j=0;j<240;j++)
			{
				write_dat(0x00);
			 }
		for (j=0;j<240;j++)
			{
				write_dat(0x1f);
			 }
		for (j=0;j<240;j++)
			{
				write_dat(0x1f);
			 }
	}
}
void lcd_line3(void)				
{
	unsigned char i,j;
	for (i=0;i<32;i++)
	{
		for (j=0;j<240;j++)
			{
				write_dat(0x1f);
			 }
		for (j=0;j<240;j++)
			{
				write_dat(0x1f);
			 }
		for (j=0;j<240;j++)
			{
				write_dat(0x00);
			 }
		for (j=0;j<240;j++)
			{
				write_dat(0x1f);
			 }
	}
}
void lcd_line4(void)				
{
	unsigned char i,j;
	for (i=0;i<32;i++)
	{
		for (j=0;j<240;j++)
			{
				write_dat(0x1f);
			 }
		for (j=0;j<240;j++)
			{
				write_dat(0x1f);
			 }
		for (j=0;j<240;j++)
			{
				write_dat(0x1f);
			 }
		for (j=0;j<240;j++)
			{
				write_dat(0x00);
			 }
	}
}
*/
void lcd_full(void)				
{
	unsigned char i,j;

  
	for (i=0;i<128;i++)//128
	{
		for (j=0;j<240;j++)
			{
				write_dat(0x00);
			 }
	} 

}




/*
//走竖程序，
void lcd_erect1()
{
	unsigned char i,j;
	for (i=0;i<128;i++)
		{
			for (j=0;j<240/4;j++)
				{
					write_dat(0x00);
					write_dat(0x1f);
					write_dat(0x1f);
					write_dat(0x1f);
				}
		}
}
void lcd_erect2()
{
	unsigned char i,j;
	for (i=0;i<128;i++)
		{
			for (j=0;j<240/4;j++)
				{
					write_dat(0x1f);
					write_dat(0x00);
					write_dat(0x1f);
					write_dat(0x1f);
				}
		}
}
void lcd_erect3()
{
	unsigned char i,j;
	for (i=0;i<128;i++)
		{
			for (j=0;j<240/4;j++)
				{
					write_dat(0x1f);
					write_dat(0x1f);
					write_dat(0x00);
					write_dat(0x1f);
				}
		}
}
void lcd_erect4()
{
	unsigned char i,j;
	for (i=0;i<128;i++)
		{
			for (j=0;j<240/4;j++)
				{
					write_dat(0x1f);
					write_dat(0x1f);
					write_dat(0x1f);
					write_dat(0x00);
				}
		}
}
*/

//图形显示
void lcd_image(unsigned char code *p)
{

    unsigned char i,j,k,l;	int a;

    write_com(0x30);	// ext=0
	write_com(0x75);	// line address set
	write_dat(80);	// start line =0
	write_dat(127);	// end line =127
	write_com(0x5c);	// write data
	for (i=0;i<48;i++)
	{
	  for(j=0;j<240/8;j++)
	  {
		l=*p;
		for(k=0;k<8;k++)
		{
			
			if((l&0x80)==0)
				write_dat(0x1f);
			else
				write_dat(0x00);
	     	l=l<<1;
	  	}
		p++;
       
	  }

	}
	a=p;

	write_com(0x30);	// ext=0
	write_com(0x75);	// line address set
	write_dat(0);	// start line =0
	write_dat(79);	// end line =127
	write_com(0x5c);	// write data

	for (i=0;i<80;i++)
	{ 
	  
	  p=a+2400-(i+1)*30;
	  
	  for (j=0;j<240/8;j++)
	  {
		l=*p;
		for(k=0;k<8;k++)
		{
			
			if((l&0x80)==0)
				write_dat(0x1f);
			else
				write_dat(0x00);
	     	l=l<<1;
	  	}
		p++;
       
	  }

	}
   
}

void ReadEEPROM( void )
{
	write_com(0x30);	 // Ext = 0
	write_com(0x07); 	// Initial code (1)
	write_dat(0x19);
	write_com(0x31); 	// Ext = 1
	write_com(0xcd);	// EEPROM ON
	write_dat(0x00);	// Entry "Read Mode"
	delay_ms(100);		// Waite for EEPROM Operation ( 100ms )
	write_com(0xfd); 	// Start EEPROM Reading Operation
	delay_ms(100);		// Waite for EEPROM Operation ( 100ms )
	write_com(0xcc); 	// Exist EEPORM Mode
	write_com(0x30);	// Ext = 0
}