os_lcd.c.bak

对pxa255内置lcd控制器编程来实现字符及图像的显示

extern void print_hzk16(int, int,char *,int);
extern void disable_lcd(void);
extern void enable_lcd(void);


extern void screen_clean(int);
extern char hzk16[];
#define BLACK 0x0000
#define WHITE 0xffff


void udelay(int multi)
{
  long int delay_1,delay_2;
  for (delay_2=0;delay_2<multi;delay_2++)
     for(delay_1=0;delay_1<100000;delay_1++);

}

void dummyOs()
{
 screen_clean(0x5);
 disable_lcd();
 print_hzk16(300,240,"西安电子科技大学", BLACK);
 print_hzk16(300,290," 电子工程学院",BLACK);
 print_hzk16(300,340,"王玉珂",WHITE);
 enable_lcd();
 udelay(300);  
 screen_clean(0x9);
 disable_lcd();
 print_hzk16(300,240,"LCD显示实验",BLACK);
 enable_lcd();
 udelay(100);    

while(1);
}