S3C2440-LCD字符顯示
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void Init_LCD(){
rLCDCON1=(CLKVAL＜＜8)|(MMODE＜＜7)|(PNRMODE＜＜5)|(BPPMODE＜＜1)|0; //設置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，因為還沒有設置好
rLCDCON2=(VBPD＜＜24)|(LINEVAL＜＜14)|(VFPD＜＜6)|(VSPW); //rLCDCON2，rLCDCON3和rLCDCON4主要設置時序
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需要進行翻轉，因為CPU發(fā)出的是正脈沖，LCD使用的是負脈沖，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; //使能數據輸出和LCD控制信號
}
void Paint_text16(U32 x, U32 y, U32 color, unsigned char ch[]){
int i, j, test, t = 0;
for(i = 0; i ＜ 16; i++){
test = 0x80;
for(j = 0; j ＜ 16; j++){
if(j == 8){
test = 0x80;
t++;
}
if(ch[t] & test)
LCD_BUFFER[x+i][y+j] = color;
test ＞＞= 1;
}
t++;
}
}
void Paint_Ascii(U32 x, U32 y, U32 color, unsigned char ch[]){
int i, j, test;
for(i = 0; i ＜ 16; i++){
test = 0x80;
for(j = 0; j ＜ 8; j++){
if(test & ch[ i])
LCD_BUFFER[x+i][y+j] = color;
test ＞＞= 1;
}
}
}
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(){
int qu, wei, i, test = 0x80, t;
unsigned char * head;
unsigned char fuck[] = "李萬鵬專注于linux+arm";
Init_LCD();
Paint_background(0xFFFFFF);
for(i = 0,t = 0; i ＜ sizeof(fuck); i++){
if(test & fuck[ i]){
qu = fuck[ i] - 0xA0;
wei = fuck[i+1] - 0xA0;
head = &__HZK[((qu-1)*94+wei-1)*32];
Paint_text16(100, 100+t*16, 0x000000, head);
i++;
}
else{
head = &__ASCII[fuck[ i]*16];
Paint_Ascii(100, 100+i*8 , 0x000000, head);
}
t++;
}
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