mobi2006lcd.c

用C写的mobile2006 手机LCD液晶片程序

#include <config.h>


sbit LCDSI=P3^6;		//LCD CONTROL
sbit LCDSCL= P3^7;
sbit LCDA= P1^5;
sbit LCDRES= P1^6;
sbit LCDCS =P1^7;


//***************************************************************************************************************

void ClearScreen()
{
	uint8 i,j;
	for(i=0;i<63;i++)
	{
		SetXY(i,0);
		for(j=0;j<132;j++)
			SendByte(DATA,0x00);
	}
}



/*
***INPUT:flag:0--command 1---data ;dd:a byte
*/

void SendByte(uint8 flag,uint8 dd)
{
	uint8 i=0;
	
	LCDCS=0;
	if(flag)
		LCDA=1;    //send data flag
	else 
		LCDA=0;			//send command flag
	for(i=0;i<8;i++)	
	{
		LCDSCL=0;
		if(dd&0x80)
			LCDSI=1;
		else 
			LCDSI=0;
		_nop_();
		_nop_();
		_nop_();
		LCDSCL=1;
		dd<<=1;
	}
	LCDCS=1;
}

void delay(uint8 n)
{
	uint8 i,j;
	
	for(i=n;i>0;i--)
		for(j=255;j>0;j--);
}


void InitLCD()
{
	uint16 LCD_Temp;

	delay(255);
	//LCDCS=0;
	LCDRES=0;
	_nop_();
	_nop_();
	_nop_();
	LCDRES=1;
	
     SendByte(COMMAND , 0xE2);       //NOP :command for non-operation mode
     SendByte(COMMAND , 0xA2);        //lcd bixa set
     SendByte(COMMAND , 0xa1);       //ACD select:forward direction
 //    SendByte(COMMAND , 0xa7);       //display inverted
     
     SendByte(COMMAND , 0xC1);        //set scan direction for COM segment   :forward
     SendByte(COMMAND , 0x2f);        //power control set 
     for(LCD_Temp = 0;LCD_Temp<1000;LCD_Temp++);
   
     SendByte(COMMAND , 0x23);       //set Vlc1 output voltage to electronic volume register
     SendByte(COMMAND , 0x81);       //electronic volume mode set
     SendByte(COMMAND , 0x3F);        //electronic volume register set
     SendByte(COMMAND , 0x2f);          //power control set 
     for(LCD_Temp = 0;LCD_Temp<1000;LCD_Temp++);
   
     SendByte(COMMAND , 0x40);        //display start line set
     SendByte(COMMAND , 0xAF);        //display ON
     SendByte(COMMAND , 0x00);			//column low address set*/
/*	
	SendCommand(0xA2);  //LCD bia set:1/9
	SendCommand(0xb0);   //ACD select:forward direction
	SendCommand(0xa4);	//display mode set:normal display mode
	SendCommand(0x28);	//power control set
	SendCommand(0x20);	//set on-chip resistor for Vlc1
	SendCommand(0x81);	//electronic volumn set
	SendCommand(0x20);  
	SendCommand(0x80);	//common output status select:normal(forward)
	delay(255);
	SendCommand(0xb0);	//set page address
	SendCommand(0x10);	//set column address(high byte)
	SendCommand(0x00);	//set column address(low byte)
	SendCommand(0xa5);	//display on

     SendByte(COMMAND,0xE2);       
     SendByte(COMMAND,0xA2);        
     SendByte(COMMAND,0xb0);   
	 
     SendByte(COMMAND,0xc0);           
     SendByte(COMMAND,0x2f); 
     for(LCD_Temp = 0;LCD_Temp<1000;LCD_Temp++);

	SendByte(COMMAND,0x23);        
     SendByte(COMMAND,0x81);       
     SendByte(COMMAND,0x3f);  
     SendByte(COMMAND,0x2f);  
     for(LCD_Temp = 0;LCD_Temp<1000;LCD_Temp++);
   
	 SendByte(COMMAND, 0x80);    
	 SendByte(COMMAND, 0xa6);        
	 SendByte(COMMAND, 0xb0);        
    SendByte(COMMAND,0x10);        
    SendByte(COMMAND,0x00);
    SendByte(COMMAND,0xa5);
*/
}

/* Function: draw dot on LCD
***Input:range of x is:0---63;range of y is :0---127
***Output:void
*/
void SetXY(uint8 x,uint8 y)
{
	LCDCS=0;
	SendByte(COMMAND,(x/8)|0xB0);  //page address set
	SendByte(COMMAND,0x10|((y&0xf0)>>4));  //column address set
	SendByte(COMMAND,y&0x0f);
	LCDCS=1;
}



/* Function: draw dot on LCD
***Input:range of x is:0---63;range of y is :0---127
***Output:void
*/
void DrawDot(uint8 x,uint8 y)
{
	uint8 tmp;
	
	SetXY(x, y);
      switch(x&7)  //x&7==x%8
      	{
		case 1:
			tmp=0x01;
			break;
		case 2:
			tmp=0x02;
			break;
		case 3:
			tmp=0x04;
			break;
		case 4:
			tmp=0x08;
			break;
		case 5:
			tmp=0x10;
			break;
		case 6:
			tmp=0x20;
			break;
		case 7:
			tmp=0x48;
			break;
		default:
			tmp=0x80;
			break;
	 }
	  
	  SendByte(DATA,tmp);
}

/* Function: draw Line on LCD
***Input:range of x1 and x2 is:0---63;range of y1 and y2 is :0---127
***Output:void
*/
void DrawLine(uint8 x1,uint8 y1,uint8 x2,uint8 y2)
{
	uint8 i;
	
	if(x1==x2)  	//draw horizontal line
	  for(i=y1;i<=y2;i++)
		DrawDot(x1, i);

	if(y1==y2)		//draw vertical line
		for(i=x1;i<=x2;i++)
			DrawDot(i,y1);
}