51单片机 用数码管显示动态检测结果

注：本数码管为共阴极，P2为位选口，P0为数据口

本实验是一个60s计数器，当满60s后，此时又从00开始计数

#includeunsigned char Tab[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};unsigned char int_time;unsigned char second;void delay(void){   unsigned char i;   for(i=0;i<250;i++)   ;}void Display(unsigned char k){   P2=0xfd;   P0=Tab[k/10];   delay();   P2=0xfe;   P0=Tab[k];   delay();   P2=0xff;}void main(){   TMOD=0x01;   TH0=15536/256;                  //50ms发生一次中断   TL0=15536%6;   EA=1;                           //开启总中断源   ET0=1;                          //定时器T0中断允许   TR0=1;                          //启动定时器0   int_time=0;                     //中断次数初始化   second=0;                       //秒初始化   while(1)   {      Display(second);   }}void interserver(void) interrupt 1 using 1{   TR0=0;   int_time++;   if(int_time==20)   {      int_time=0;   second++;   if(second==60)      second=0;   }   TH0=15536/256;   TL0=15536%6;   TR0=1;}