S3C2440-LCD基礎(chǔ)

下面的程序?qū)CD涂成紅色，然后畫(huà)一個(gè)藍(lán)色的矩形。

#define rGPCCON (*(volatile unsigned *)0x56000020)

#define rGPCUP (*(volatile unsigned *)0x56000028)

#define rGPDCON (*(volatile unsigned *)0x56000030)

#define rGPDUP (*(volatile unsigned *)0x56000038)

#define rLCDCON1 (*(volatile unsigned *)0x4d000000)

#define rLCDCON2 (*(volatile unsigned *)0x4d000004)

#define rLCDCON3 (*(volatile unsigned *)0x4d000008)

#define rLCDCON4 (*(volatile unsigned *)0x4d00000c)

#define rLCDCON5 (*(volatile unsigned *)0x4d000010)

#define rLCDSADDR1 (*(volatile unsigned *)0x4d000014)

#define rLCDSADDR2 (*(volatile unsigned *)0x4d000018)

#define rLCDSADDR3 (*(volatile unsigned *)0x4d00001c)

#define rLCDINTMSK (*(volatile unsigned *)0x4d00005c)

#define rTPAL (*(volatile unsigned *)0x4d000050)

#define rGPGCON (*(volatile unsigned *)0x56000060) //Port G control

#define rGPGDAT (*(volatile unsigned *)0x56000064) //Port G data

#define rGPGUP (*(volatile unsigned *)0x56000068) //Pull-up control G

#define rLCDINTMSK (*(volatile unsigned *)0x4d00005c)

#define rTPAL (*(volatile unsigned *)0x4d000050)

#define rTCONSEL (*(volatile unsigned *)0x4d000060) //LPC3600 Control --- edited by junon

//垂直同步信號(hào)的脈寬、后肩和前肩

#define VSPW 15

#define VBPD 3

#define VFPD 5

//水平同步信號(hào)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(shí)不要開(kāi)啟LCD，因?yàn)檫€沒(méi)有設(shè)置好

rLCDCON2=(VBPD＜＜24)|(LINEVAL＜＜14)|(VFPD＜＜6)|(VSPW); //rLCDCON2，rLCDCON3和rLCDCON4主要設(shè)置時(shí)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?yàn)镃PU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(hào)

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(hào)

}

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;

}

void Paint_rectangle(U32 c){

int i, j;

for(i = 100; i ＜ 200; i++)

for(j = 100; j ＜ 200; j++)

LCD_BUFFER[ i][j] = c;

}

int LcdMain(){

Init_LCD();

Paint_background(0xCD5C5C);

Paint_rectangle(0x000080);

while(1);

}