lcd_driver.h

ARM 7系统的应用 采用 LPX 2103作为处理器 集成了Mp3 液晶 无线控制 串行传输等

/****************************************Copyright (c)**************************************************
**                               Guangzou ZLG-MCU Development Co.,LTD.
**                                      graduate school
**                                 http://www.zlgmcu.com
**
**--------------File Info-------------------------------------------------------------------------------
** File Name: config.h
** Last modified Date:  2004-09-17
** Last Version: 1.0
** Descriptions: User Configurable File
**
**------------------------------------------------------------------------------------------------------
** Created By: Chenmingji
** Created date:   2004-09-17
** Version: 1.0
** Descriptions: First version
**
**------------------------------------------------------------------------------------------------------
** Modified by:
** Modified date:
** Version:
** Descriptions:
**
********************************************************************************************************/
#ifndef __LCD_DRIVER_H 
#define __LCD_DRIVER_H 

#define DATA (0xff<<2)
#define RD   (1<<10)
#define WR   (1<<11)
#define RS   (1<<12)
#define RES  (1<<13)
#define CS   (1<<17)



void SendCommand(uint8 com)
{

	IO0CLR = RS;
	IO0SET = RD;	
	IO0PIN = (IO0PIN & 0xfffffc03 ) | (com << 2) ;
	nop();nop();nop();
	nop();nop();nop();
	nop();nop();nop();
	IO0CLR = WR;
	nop();nop();nop();
	nop();nop();nop();
	nop();nop();nop();
	IO0SET = WR;
}

void SendData(uint8 data)
{

	IO0SET = RS;
	IO0SET = RD;
	IO0PIN = (IO0PIN & 0xfffffc03 ) | (data << 2) ;
	nop();nop();nop();
	nop();nop();nop();
	nop();nop();nop();
	IO0CLR = WR;
	nop();nop();nop();
	nop();nop();nop();
	nop();nop();nop();
	IO0SET = WR;
	nop();
}



void InitializeLCD()
{
	
	
    IO0CLR = CS;

    IO0SET = RD;
    IO0CLR = RES;
    nop();
    nop();
    nop();nop();nop();
    IO0SET = RES;
    nop();nop();
    nop();nop();nop();
    nop();nop();nop();
    nop();
    
   	
   	SendCommand(0xe2);
    SendCommand(0xa0);    
    SendCommand(0xc8);    
    SendCommand(0xa2);
    SendCommand(0x24);
  	SendCommand(0x2f);    
    SendCommand(0x81);   
    SendCommand(0x29);    
    SendCommand(0x40);
    SendCommand(0xa4);    
    SendCommand(0xa6);
    SendCommand(0xac);
    SendCommand(0x00);
   	SendCommand(0xaf);
     
}

void SetPage(uint8 page)
{
	page = page & 0x0f;
	page = page | 0xb0;
	SendCommand(page);
	
}

void SetColumn(uint8 column)
{
	uint8 temp;
	temp = column;
	column = column & 0x0f;
	column = column | 0x00;
	SendCommand(column);
	temp = temp >> 4;
	column = temp &0x0f;
	column = column | 0x10;
	SendCommand(column);
	
}

void ClearScreen()
{
	uint32 i,j;
	for(i=0;i<8;i++)
	{
		SetPage(i);
		SetColumn(0);
		for(j=0;j<128;j++)
			SendData(0x00);
	}
}

void DisplayPic(unsigned const char *pic)
{
	uint32 i,j;
	for(j=0;j<8;j++)
	{
		SetPage(j);
		SetColumn(0);
		for(i=0;i<128;i++)
			SendData(pic[i+j*128]);
	}
}

void ShowText(unsigned const char *pic_h,unsigned const char *pic_l,int text_start,int32 width)
{
	int32 start;
	uint8 i;	
		
	for(start=-122;start<width;start++)
	{
		SetPage(6);
		SetColumn(3);
				
		for(i=3;i<125;i++)
		{
			if(i+start+1>width||i+start+1<=0)SendData(0x01);
			else SendData(pic_h[i+start+text_start]);
		}

		SetPage(7);
		SetColumn(3);
		
		for(i=3;i<125;i++)
		{
			if(i+start+1>width||i+start+1<=0)SendData(0x40);
			else SendData(pic_l[i+start+text_start]);
		}
		
		DelayNS(15);
		if(int_flag)
		{
			int_flag=0;
			return;
		}
	}
		
}

void ShowNews(unsigned const char *pic_h,unsigned const char *pic_l,uint8 num)
{
	int32 start=0,width=0;
	switch(num)
	{
		case 1:start = 0;width=147;break;
		case 2:start = 147;width=270;break;
		case 3:start = 417;width=207;break;
		case 4:start = 624;width=87;break;
		case 5:start = 711;width=84;break;
		case 6:start = 795;width=72;break;
		case 7:start = 867;width=84;break;
		case 8:start = 951;width=72;break;
		case 9:start = 1023;width=84;break;
		case 10:start = 1107;width=84;break;
		case 11:start = 1191;width=84;break;
		case 12:start = 1275;width=48;break;
		case 13:start = 1323;width=84;break;
		case 14:start = 1407;width=84;break;
		case 15:start = 1491;width=84;break;
		case 16:start = 1575;width=84;break;
		case 17:start = 1659;width=96;break;
		case 18:start = 1755;width=108;break;
	}
	ShowText(pic_h,pic_l,start,width);
}	


#endif
/*********************************************************************************************************
**                            End Of File
********************************************************************************************************/