用定时器实现的1602可调电子钟

void init (){en=0;TMOD=0x01;TH0=(65536-50000)/256;TL0=(65536-50000)%256;EA=1;ET0=1;TR0=1;write_cmd(0x38);write_cmd(0x0c);write_cmd(0x06);write_cmd(0x01);hour=14;minute=59;second=55;}void timer0 () interrupt 1 //定时器中断处理函数{TH0=(65536-50000)/256;TL0=(65536-50000)%256;count++;if(count==18){count=0;second++;if(second==60){second=0;minute++;if(minute==60){minute=0;hour++;if(hour==24){hour=0;}display(2,hour); }display(5,minute);} display(8,second);} }void main (){uchar i;init();write_cmd(0x80);for(i=0;i<15;i++){write_byte(table[i]);delay1(5);}write_cmd(0x80+0x40);for(i=0;i<13;i++){write_byte(table1[i]);delay1(5);} while(1){keyscan();} }