unsigned char seg[]={0x00,0x84,0xFE,0x80, 0x00, 0xC4,0xA2, 0x92,0x8C,0x00 ,0x44, 0x82, 0x92, 0x6C,0x00,0x38,0xA4,0xFE ,0xA0,0x00,0x5E, 0x94,0x94,0x64,0x00};
//下面為顯示子程序            
void		disp_ascii_to_led(unsigned char x)
		{
		unsigned char i=0;
		unsigned char temp=0x1，ppp=0;
		ppp= x*5;		//在ASCII碼點陣數據表中，找要顯示的ASCII碼的點陣首址
    for(i=0;i<5;i++)			//一共5列，循環5次
      		{
        P1DIR=0XFF;			//定義端口P1為輸出方向
    	    P5DIR=0XFF; 		//定義端口P5為輸出方向
        	P2OUT=~temp;   		//送位選碼到P1口
        temp=temp<<1; 			//準備下一位數據的位選碼
    	    P1OUT=seg[ppp+i];		//送行顯示點陣碼
        	delay(500);		//延時一會兒，延時子程序與前面的相同，這里不重復
      		}
   		 }