利用单片机设计实现一个60秒倒计时显示装置,并且计时到后发出报警声音...答:include<reg52.h>sbit bz=P3^1;unsigned char a[10]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xd8,0x80,0x90};unsigned char n,time=60;main(){P1=a[0];P2=a[6];TMOD=0X01;TH0=(65536-10000)/256;TL0=(65536-10000)%256;EA=1;ET0=1;TR0=1;while(1);}timer0() ...
小白求救,51单片机利用两个数码管实现60秒倒计时?答:然后下面这个程序你可以参考一下。是符合我的硬件图的。include <reg51.h> unsigned char table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};void show(unsigned char n);void delay(unsigned int k);void main(){ unsigned char i;int j;while(1){ for(i=60;j=60,i...
AT89C51单片机60.00到00.00倒计时程序 4位数码管显示 C语..._百度知 ...答:AT89C51单片机60.00到00.00倒计时程序 4位数码管显示 C语...ncludereg52.h> define uchar unsigned char define uint unsigned int uchar num,t;sbit dula=P2^6; //段选跟位选 sbit wela=P2^7;uchar code table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f}; /...