main.c.bak

在SDT2.51集成开发环境下开发的基于S3C44B0的液晶显示源程序代码

#include "option.h"
#include "def.h"
#include "44b.h"
#include "44blib.h"
#include "PLMM.h"
/**************这里不用虚拟屏幕，所以SCR_XSIZE=LCD_XSIZE; SCR_YSIZE=LCD_XSIZE  ***********/
#define SCR_XSIZE 	(320)  
#define SCR_YSIZE 	(240)

#define LCD_XSIZE 	(320)
#define LCD_YSIZE 	(240)

#define M5D(n) ((n) & 0x1fffff)
/**************** 定义 4 种模式的每行数据量 *************************/
#define ARRAY_SIZE_MONO 	(SCR_XSIZE/8*SCR_YSIZE)
#define ARRAY_SIZE_G4   	(SCR_XSIZE/4*SCR_YSIZE)
#define ARRAY_SIZE_G16  	(SCR_XSIZE/2*SCR_YSIZE)
#define ARRAY_SIZE_COLOR 	(SCR_XSIZE/1*SCR_YSIZE)

#define HOZVAL			(LCD_XSIZE/4-1)
#define HOZVAL_COLOR		(LCD_XSIZE*3/8-1)
#define LINEVAL			(LCD_YSIZE-1)
#define MVAL			(13)
/************** 每种模式扫描频率定义****************************/
#define CLKVAL_MONO 		(13)  //60Mhz, CLKVAL=19 ->78.6Hz
#define CLKVAL_G4 		(13)  //60Mhz, CLKVAL=19 ->78.6Hz
#define CLKVAL_G16 		(13)  //60Mhz, CLKVAL=19 ->78.6Hz
#define CLKVAL_COLOR 		(10)  //60Mhz, CLKVAL=19 ->78.6Hz

void LcdInit(void);
void clrscreen(void);
extern unsigned int (*frameBuffer1)[SCR_XSIZE/32];
extern unsigned int (*frameBuffer4)[SCR_XSIZE/16];
extern unsigned int (*frameBuffer16)[SCR_XSIZE/8];
extern unsigned int (*frameBuffer256)[SCR_XSIZE/4];
///////////////////////////////////////////////////////////
void Isr_Init(void);
void HaltUndef(void);
void HaltSwi(void);
void HaltPabort(void);      
void HaltDabort(void);
////////////////////////////
void displaylcd(void);
void clrscreen(void);
void Lcd_MonoInit(void);
/////////////////////////////
void Main(void)
{
  Lcd_MonoInit();
  displaylcd();
  Uart_Printf("LCD p320240-11 显示16 级灰度图形 \n");
  Uart_Printf("Type any key to exit!!!\n");
  Uart_Getch();
}




void Lcd_MonoInit(void)   // 液晶初始化
{
    //160x240 1bit/1pixel LCD
    #define MVAL_USED 0
     if((U32)frameBuffer16==0)
	{
	  if (( frameBuffer16=(unsigned int (*)[SCR_XSIZE/8])malloc(ARRAY_SIZE_G16))==NULL)
	     {
	        Uart_Printf("ERROR !!!!!!!! NO MEMERY !!!!!!! \n");
	      }
	  else
	       {
	         Uart_Printf("ARRAY_SIZE_g16= %d \n", ARRAY_SIZE_G16);
	        }
         }

	rLCDCON1=(0)|(1<1)|(1<<5)|(MVAL_USED<<7)|(0x3<<8)|(0x3<<10)|(CLKVAL_G16<<12);
	    // disable,4B_SNGL_SCAN,WDLY=8clk,WLH=8clk,
	rLCDCON2=(LINEVAL)|(HOZVAL<<10)|(10<<21);  
	    //LINEBLANK=10 (without any calculation) 
	rLCDSADDR1= (0x2<<27) | ( ((U32)frameBuffer16>>22)<<21 ) | M5D((U32)frameBuffer16>>1);
	    // 16-lever gray  mode , LCDBANK, LCDBASEU
	rLCDSADDR2= M5D (((U32)frameBuffer16+(SCR_XSIZE*(LINEVAL+1))/2)>>1) | (MVAL<<21) |(0<<29);
          // 4*SCR_XSIZE*LCD_YSIZE/8
	rLCDSADDR3= (LCD_XSIZE/4) | ( ((SCR_XSIZE-LCD_XSIZE)/4)<<9 );

	rLCDCON1=(1)|(1<<1)|(1<<5)|(MVAL_USED<<7)|(0x3<<8)|(0x3<<10)|(CLKVAL_G16<<12);
	    // enable,4B_SNGL_SCAN,WDLY=8clk,WLH=8clk,
    
}

void displaylcd(void)
{
   unsigned int *pbuffer,temp_data;
     int i,j=0;
    pbuffer =(U32*) frameBuffer16;
      
    clrscreen();
    for(i = 0; i< (38400/4) ;i++)
    {
       temp_data = (plmmBitmap[i*4] << 24) + (plmmBitmap[i*4+1] << 16) + (plmmBitmap[i*4+2] << 8) +(plmmBitmap[i*4+3]);
        pbuffer[i] = temp_data;

 }
}

void clrscreen(void)
{
    unsigned int *pbuffer;
     int i;
     
    pbuffer =(U32*) frameBuffer16;
    for(i = 0; i< (38400/4) ;i++)
    {
        pbuffer[i] = 0;

 }
}


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

void Isr_Init(void)
{
    U32 i;
    
    pISR_UNDEF=(unsigned)HaltUndef;
    pISR_SWI  =(unsigned)HaltSwi;
    pISR_PABORT=(unsigned)HaltPabort;
    pISR_DABORT=(unsigned)HaltDabort;
    
     for(i=_RAM_STARTADDRESS;i<(_RAM_STARTADDRESS+0x20);i+=4)
    {
	*((volatile unsigned *)i)=0xEA000000+0x1FFE;
    }

    rINTCON=0x5;	  // Non-vectored,IRQ enable,FIQ disable    

    rINTMOD=0x0;	  // All=IRQ mode
    rINTMSK|=BIT_GLOBAL|BIT_EINT3;	  // All interrupt is masked.
}


void HaltUndef(void)
{
    Uart_Printf("Undefined instruction exception!!!\n");
    while(1);
}

void HaltSwi(void)
{
    Uart_Printf("SWI exception!!!\n");
    while(1);
}

void HaltPabort(void)
{
    Uart_Printf("Pabort exception!!!\n");
    while(1);
}

void HaltDabort(void)
{
    Uart_Printf("Dabort exception!!!\n");
    while(1);
}