使用2个数码管设计一个60秒倒计时C语言程序,要求用定时器中断定时1秒...答:7SEG-COM-CATHODE 为共阴管 include<reg51.h> define uchar unsigned char define uint unsigned int uchar num=60,shi,ge;uchar code TAB[]={ 0x3F,/*0*/ 0x06,/*1*/ 0x5B,/*2*/ 0x4F,/*3*/ 0x66,/*4*/ 0x6D,/*5*/ 0x7D,/*6*/ 0x07,/*7*/ 0x7F,/*8*/ 0x6F,/*...
设计一个60s倒计时c程序,从60到0逐次递减,谢谢!具体如下图,就是单片机...答:LJMP MAIN ORG 0030H MAIN:MOV P2,#3FH MOV P0,#3FH MOV P1,#00H MOV DPTR,#TAB1 MOV R1,#60 ACALL DPLAY DPLAY:MOV R2,#100 MOV TMOD,#01H MOV TH0,#0D8H MOV TL0,#0F0H SETB TR0 LP0:JBC TF0,LP1 AJMP LP0 LP1:MOV TH0,#0D8H MOV TL0,#0F0H DJNZ R2,LP0 ACALL SSG ...
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}; /...
求C51单片机汇编语言控制两位数码管60秒倒计时的程序,最好能说明下思路...答:define seg P0 define sw P2 int tab[]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90};int dis[]={0,0};uint X;uchar Count=0;uchar sec=60;void display(){ int a;int m=0x01;dis[0]=sec/10;dis[1]=sec%10;for(a=0;a<2;a++){ seg=0xff;seg=tab[dis[a...