lcddriver.c

在S3C44b0板上挂接TRULY公司LCM:MST-G240128(UC1608),该代码主要完成对该液晶的底层及中间层驱动,功能:写汉字,写ASCII码,刷图,画点,拉直线,画圆

#include "44b.h"
#include "44blib.h"
#include "def.h"
#include "option.h"
#include "font.h"

#include <stdarg.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
#include <math.h>



void Pin_DatCom(U8 vl)
{
    if(vl)
        rPDATC |= 0x0080;
    else
        rPDATC &= 0xff7f;
}

void Pin_Rd(U8 vl)
{
    if(vl)
        rPDATC |= 0x0040;
    else
        rPDATC &= 0xffbf;
}

void Pin_Wr(U8 vl)
{
    if(vl)
        rPDATC |= 0x0020;
    else
        rPDATC &= 0xffdf;
}

void Pin_Cs(U8 vl)
{
    if(vl)
        rPDATC |= 0x0010;
    else
        rPDATC &= 0xffef;
}

void Pin_Rst(U8 vl)
{
    if(vl)
        rPDATC &= 0xfdff;
    else
        rPDATC |= 0x0200;
}

void Pin_Bled(U8 vl)
{
    if(vl)
        rPDATC &= 0xfeff;
    else
        rPDATC |= 0x0100;
}


/**********************************************************/
void LCD_Reset(U8 st)
{
    if(st)
    {
        Pin_Rst(0);
        Delay(5);
        Pin_Rst(1);
        Delay(5);
    }
    else
    {
        Pin_Rst(1);
        Delay(5);
        Pin_Rst(0);
        Delay(5);
    }
}
void LCD_Bled(U8 bl)
{
    if(bl)
        Pin_Bled(0);
    else
        Pin_Bled(1);
}
void LCD_Cs(U8 cs)
{
    if(cs)
        Pin_Cs(1);
    else
        Pin_Cs(0);
}

void LCD_Wcommand(U8 com)
{   
    Pin_DatCom(0);
    Pin_Rd(1);
    Pin_Wr(1);
    rPDATD = com;
    
    Pin_Wr(0);
    Pin_Wr(1);
    
}
void LCD_Wdata(U8 dat)
{
    Pin_DatCom(1);
    Pin_Rd(1);
    Pin_Wr(1);
    rPDATD = dat;
    
    
    Pin_Wr(0);
    Pin_Wr(1);
    
}
void LCD_Initialize(void)
{ 


   LCD_Reset(1);
   LCD_Cs(1);
   LCD_Wcommand(0xE2);   /* System reset*/
   
   Delay(10);
   
   LCD_Wcommand(0xEB);   /* Set lcd bias ratio: 111010_10 */
   LCD_Wcommand(0x25);   /* Set mux rate and temperature compensation*/
   LCD_Wcommand(0x81);
   LCD_Wcommand(0xA5);   /* Set gain and potentiometer 1_01_00101 */
   LCD_Wcommand(0x2F);   /* Set power control 00101_1_11 */
   LCD_Wcommand(0xAF);   /* Display Enable:    1010111_1 */

   Delay(10);
                    
   LCD_Wcommand(0x40);   /* Set start line:      01_000000     */
   LCD_Wcommand(0xA4);   /* Set all pixel on:    1010010_DC[1] */
   LCD_Wcommand(0xA6);   /* Set inverse display: 1010011_DC[0] */
   LCD_Wcommand(0x89);   /* Set ram address control: 10001_001 */
   LCD_Wcommand(0xC8);   /* Set lcd mapping control: 1100_1_0__0 */

}
void LCD_ClearAll(void)
{
  U16 i;
  LCD_Cs(1);
  LCD_Wcommand(0XB0); /*SET PAGE ADDRESS*/
  LCD_Wcommand(0X10); /*SET COLUMN ADDRESS MSB(00000000)*/
  LCD_Wcommand(0X00); /*SET COLUMN ADDRESS LSB(00000000)*/
  LCD_Wcommand(0X89); /*SET RAM ADDRESS CONTROL*/
  for(i=0;i<3840;i++)
  LCD_Wdata(0x00);

}
void LCD_WByte(U8 x,U8 y,U8 t)
{
  LCD_Cs(1);
  LCD_Wcommand(176+y);
  LCD_Wcommand(16+x/16);
  LCD_Wcommand(x%16);
  LCD_Wdata(t);

}
void LCD_WPoint(U8 x,U8 y,U8 k)
{
  LCD_Cs(1);
  LCD_Wcommand(176+y/8);
  LCD_Wcommand(16+x/16);
  LCD_Wcommand(x%16);
  if(k)
  LCD_Wdata(0x01<<y%8);
  else
  LCD_Wdata(0x00);

}
/*******************************************************/
void LCD_Chinese(U8 x,U8 y,S8 *str,U8 k,U8 t)
{
  S8 *OffSet;
  U8 i;
  U16 AddOffSet;

  OffSet=strstr(Index, str);
  
  
  
  AddOffSet=(OffSet-Index)<<4;
  
  
  if(t)
  {
	 if(k)
	 {
	     for(i=0;i<16;i++)
	     LCD_WByte(x+i,y,~FAlib[AddOffSet++]);
	     for(i=0;i<16;i++)
	     LCD_WByte(x+i,y+1,~FAlib[AddOffSet++]);
     }
     else
     {
	     for(i=0;i<16;i++)
	     LCD_WByte(x+i,y,FAlib[AddOffSet++]);
	     for(i=0;i<16;i++)
	     LCD_WByte(x+i,y+1,FAlib[AddOffSet++]);
     }
  }
  else
  {
     if(k)
     {
	     for(i=0;i<16;i++)
	     LCD_WByte(x+i,y,~CAlib[AddOffSet++]);
	     for(i=0;i<16;i++)
	     LCD_WByte(x+i,y+1,~CAlib[AddOffSet++]);
     }
      else
     {
	     for(i=0;i<16;i++)
	     LCD_WByte(x+i,y,CAlib[AddOffSet++]);
	     for(i=0;i<16;i++)
	     LCD_WByte(x+i,y+1,CAlib[AddOffSet++]);
     }
  }
  		
}

void LCD_Ascii(U8 x,U8 y,S8 *str,U8 k)
{
  S8 *OffSet;
  U8 i;
  U16 AddOffSet;

  OffSet=strstr(Index, str);
  AddOffSet=(OffSet-Index)<<4;
  
  if(k)
  {
	  for(i=0;i<8;i++)
	  LCD_WByte(x+i,y,~CAlib[AddOffSet++]);
	  for(i=0;i<8;i++)
	  LCD_WByte(x+i,y+1,~CAlib[AddOffSet++]);
  }
  else
  {
	  for(i=0;i<8;i++)
	  LCD_WByte(x+i,y,CAlib[AddOffSet++]);
	  for(i=0;i<8;i++)
	  LCD_WByte(x+i,y+1,CAlib[AddOffSet++]);
  }
}
   
void LCD_CAstr(U8 x,U8 y,S8 *str,U8 k,U8 t)
{
  S8 rega[2];
  S8 regc[3];
  while( *str != 0 )
  {
    if( (U8)*str < 0xA0 )
    {
	  strncpy(rega, str, 1);
	  rega[1]=0;
	  LCD_Ascii(x,y,rega,k);
      str=str+1;
	  x=x+8;
	}
	if( (U8)*str >= 0xA0 )
	{
	  strncpy(regc, str, 2);
	  regc[2]=0;
	  LCD_Chinese(x,y,regc,k,t);
	  str=str+2;
	  x=x+16;
	}
  }
}

void LCD_math(U8 x,U8 y,S8 t,U8 k)
{
  U8 i;
  U16 AddOffSet;

  AddOffSet=6048+16*t;
  
  if(k)
  {
	  for(i=0;i<8;i++)
	  LCD_WByte(x+i,y,~CAlib[AddOffSet++]);
	  for(i=0;i<8;i++)
	  LCD_WByte(x+i,y+1,~CAlib[AddOffSet++]);
  }
  else
  {
	  for(i=0;i<8;i++)
	  LCD_WByte(x+i,y,CAlib[AddOffSet++]);
	  for(i=0;i<8;i++)
	  LCD_WByte(x+i,y+1,CAlib[AddOffSet++]);
  }
}

void LCD_Num(U8 x,U8 y,U16 t,U8 k,S8 *str)
{
   S8 a,b,c,d;
   
   a=(int)t/1000;
   b=(int)t/100-a*10;
   c=(int)t/10-a*100-b*10;
   d=(int)t%10;
   
   if(a!=0)
   {
	   LCD_math(x,y,a,k);
	   LCD_math(x+8,y,b,k);
	   LCD_math(x+16,y,c,k);
	   LCD_math(x+24,y,d,k);
	   LCD_CAstr(x+32,y,str,0,0);
   }
   if(a==0&&b!=0)
   {
	   LCD_math(x,y,b,k);
	   LCD_math(x+8,y,c,k);
	   LCD_math(x+16,y,d,k);
	   LCD_CAstr(x+24,y,str,0,0);
   }
   if(a==0&&b==0&&c!=0)
   {
	   LCD_math(x,y,c,k);
	   LCD_math(x+8,y,d,k);
	   LCD_CAstr(x+16,y,str,0,0);
   }
   if(a==0&&b==0&&c==0)
   {
	   LCD_math(x,y,d,k);
	   LCD_CAstr(x+8,y,str,0,0);
   }
}

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