求高手为下面的仿真图设计一个51单片机实现秒表的程序,要求:2位数码...答:include <reg51.h> define uchar unsigned char define uint unsigned int sbit KS=P1^1;sbit KP=P1^2;sbit KC=P1^3;uchar ge,shi;uchar code tab[ ]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,};void delay(uint ms){ uchar a;while(ms--)for(a=123;a>0;a--...
利用51单片机,通过两位数码管显示秒,按键实现计时和停止计时 具体内容...答:LOOP0 JNB P1.1,$ CLR TR0 MOV P3,#0FDH MOV P2,#0 MOV P3,#0FEH MOV P2,#0 SJMP MAINLOOP0: JB 00H,LOOP1 MOV A,R0 SJMP LOOP2LOOP1: MOV A,R1LOOP2: MOV DPTR,
求编程实现倒计时的秒表,2位LED数码管显示,延时采用硬件延时的方法_百 ...答:用单片机的定时器T0定时,计时1秒,实现倒计时的秒表的功能。程序如下 include<reg51.h> unsigned char code tab[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};//共阳数码管段码表 unsigned char second;//秒倒计时变量 unsigned char t0n;//T0中断次数计数 sbit k1=P3^2;/...
51单片机 秒表设计答:// 51单片机 秒表,显示时间为0000—9999秒,启动、停止,(停止后再次启动复位)include<reg52.h> define uint unsigned int define uchar unsigned char uchar code table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};uchar bai,shi;uint...