S3C2440-LCD圖片顯示

Image2Lcd_32的配置方法：

#include "2440addr.h"

#include "picture.h"

//垂直同步信號的脈寬、后肩和前肩

#define VSPW 15

#define VBPD 3

#define VFPD 5

//水平同步信號的脈寬、后肩和前肩

#define HSPW 8

#define HBPD 58

#define HFPD 15

#define CLKVAL 10

#define HOZVAL 319

#define LINEVAL 239

#define PWREN 1

#define MMODE 0

#define PNRMODE 3

#define BPPMODE 13

#define INVVCLK 0

#define INVVD 0

#define INVVDEN 0

#define U32 unsigned int

#define M5D(n) ((n) & 0x1fffff)

#define PAGEWIDTH 320

#define OFFSIZE 0

#define LCD_XSIZE 320

#define LCD_YSIZE 240

#define SCR_XSIZE 320

#define SCR_YSIZE 240

#define INVVLINE 1

#define INVVFRAME 1

#define BPP24BL 0

#define BSWP 0

#define HWSWP 0

volatile U32 LCD_BUFFER[240][320];

void Init_LCD(){

rLCDCON1=(CLKVAL＜＜8)|(MMODE＜＜7)|(PNRMODE＜＜5)|(BPPMODE＜＜1)|0; //設(shè)置CLKVAL，VCLK=HCLK/[(CLKVAL+1)*2],決定VM的觸發(fā)方式，選擇顯示模式和BPP模式，暫時不要開啟LCD，因為還沒有設(shè)置好

rLCDCON2=(VBPD＜＜24)|(LINEVAL＜＜14)|(VFPD＜＜6)|(VSPW); //rLCDCON2，rLCDCON3和rLCDCON4主要設(shè)置時序

rLCDCON3=(HBPD＜＜19)|(HOZVAL＜＜8)|(HFPD);

rLCDCON4=(HSPW);

rLCDCON5 = (BPP24BL＜＜12) | (INVVCLK＜＜10) | (INVVLINE＜＜9) | (INVVFRAME＜＜8) | (0＜＜7) | (INVVDEN＜＜6) | (PWREN＜＜3) |(BSWP＜＜1) | (HWSWP); //INVVLINE和INVVFRAME需要進(jìn)行翻轉(zhuǎn)，因為CPU發(fā)出的是正脈沖，LCD使用的是負(fù)脈沖，所以要改變極性，PWREN使能電源信號

rLCDSADDR1=(((U32)LCD_BUFFER＞＞22)＜＜21)|M5D((U32)LCD_BUFFER＞＞1);

rLCDSADDR2=M5D(((U32)LCD_BUFFER+(SCR_XSIZE*SCR_YSIZE*4))＞＞1 );

rLCDSADDR3=PAGEWIDTH*32/16;

rLCDINTMSK|=(3);

rTCONSEL = 0;

rGPCUP = 0x0;

rGPDCON = 0xaaaaaaaa;

rGPCCON = 0xaaaa02a9;

rGPDUP = 0x0;

rGPGUP=rGPGUP&("(1＜＜4))|(1＜＜4);

rGPGCON=rGPGCON&("(3＜＜8))|(3＜＜8);

rLCDCON1 |= 1; //使能數(shù)據(jù)輸出和LCD控制信號

}

void Paint(unsigned char ch[]){

int y, x, t = 0;

for(y = 0; y ＜ LCD_YSIZE; y++)

for(x = 0; x ＜ LCD_XSIZE; x++){

LCD_BUFFER[y][x] = (ch[t]＜＜16)|(ch[t+1]＜＜8)|(ch[t+2]); //因為是24位真彩，所將3個字節(jié)賦值到一個像素點上

t = t + 3;

}

}

void Paint_background(U32 c){

unsigned int i, j;

for(j = 0; j ＜ LCD_YSIZE; j++)

for(i = 0; i ＜ LCD_XSIZE; i++)

LCD_BUFFER[j][ i] = c;

}

int LcdMain(){

Init_LCD();

Paint_background(0xFFFFFF);

Paint(picture); //picture是從圖片中提取出來的數(shù)組

while(1);

}