lcd44b0.c

S3c44B0x驱动16灰阶240*160液晶屏程式

/*
---------------------------------------------------------
文件	: LcdDrv1335.c
日期	: 2005-6-24
---------------------------------------------------------
*/

#include "LCDConf.h"        

#include "const.h"
#include "44b.h"
#include "44blib.h"
#include "def.h"



extern const unsigned char gImage_zz[17120];

U32 frameBuffer16[SCR_YSIZE][SCR_XSIZE/8];

void show(U16 dat1,U16 dat2)
{
   U16 *p;
   U32 k,l;
   
   p=(U16 *)frameBuffer16;
   for(l=0;l<80;l++)
   {
      for(k=0;k<60;k++)
      *p++=dat1;
      for(k=0;k<60;k++)
      *p++=dat2; 
   }
 
    Delay(25000);
}

void show_pic(U8 * pp)
{
   U8 *p;
   U32 k,l;
   
   p=(U8 *)frameBuffer16;
   for(l=0;l<160;l++)
   {
      for(k=0;k<120;k++)
      *p++=*pp++;
   }
 
    Delay(25000);
}

void Set_Vop(unsigned char value)
{
	 unsigned char ii;
	  // VDIN PC4
	  // VCLK PC5
	  // VSTR PC6
      Delay(100);
      rPDATC|=0x0020;    //VCLK=1;
      Delay(200);
      rPDATC|=0x0040;    //VSTRB=1;
      Delay(200);
      rPDATC&=~0x0040;    //VSTRB=0;
      rPDATC&=~0x0020;    //VCLK=0;	       //reset
      for (ii=0;ii<8; ii++)
      {
         if((value&0x80)==0x80)
            rPDATC|=0x0010;    //VDIN=CY;
         else
            rPDATC&=~0x0010;    //VDIN=CY;
         Delay(100);
         rPDATC|=0x0020;    //VCLK=1;
         Delay(100);
         rPDATC&=~0x0020;    //VCLK=0;
         Delay(100);
         value=value<<1;
      } 
      rPDATC|=0x0040;    //VSTRB=1;
      Delay(100);
      rPDATC&=~0x0040;    //VSTRB=0;
      Delay(100); //read
}
  
//初始化LCD显示参数以及界面
void LCD_Init(void) 
{
	rPDATC = 0xffff;	
	rPCONC = 0x00005500;	
	rPUPC  = 0x0000;

	rPDATD= 0xff;
	rPCOND= 0xaaaa;	
	rPUPD = 0x0;
	
	rDITHMODE=0x12210; 	
    rDP1_2 =0xa5a5;      
	rDP4_7 =0xba5da65;
	rDP3_5 =0xa5a5f;
	rDP2_3 =0xd6b;
	rDP5_7 =0xeb7b5ed;
	rDP3_4 =0x7dbe;
	rDP4_5 =0x7ebdf;
	rDP6_7 =0x7fdfbfe;


	rLCDCON1=(0)|(0<<1)|(1<<5)|(MVAL_USED<<7)|(0x3<<8)|(0x3<<10)|(10<<12);
	    // disable,4B_SNGL_SCAN,WDLY=16clk,WLH=16clk,CLKV=4
	rLCDCON2=(LINEVAL_G16)|(HOZVAL_G16<<10)|(10<<21);  
	    //LINEBLANK=10 (without any calculation) 
	rLCDSADDR1= (0x2<<27) | ( ((unsigned int)frameBuffer16>>22)<<21 ) | M5D((unsigned int)frameBuffer16>>1);
	    // 16-gray, LCDBANK, LCDBASEU
	rLCDSADDR2= (M5D((unsigned int)frameBuffer16)>>1)+((SCR_XSIZE>>2)*LCD_YSIZE)|(1<<29);
	rLCDSADDR3= (LCD_XSIZE/4) | ( ((SCR_XSIZE-LCD_XSIZE)/4)<<9 );
	rLCDCON1=(1)|(0<<1)|(1<<5)|(MVAL_USED<<7)|(0x3<<8)|(0x3<<10)|(10<<12);
    
   Set_Vop(0x6A);	
  
}

void lcd_test(void)
{
   show(0xf0f0,0x0f0f);
   show(0x0000,0x0000);
   show_pic((U8 *)gImage_zz);
}