需要一个基于单片机89S51的可编程定时器的程序,定时器由4个8段数码管...答:需要一个基于单片机89S51的可编程定时器的程序,定时器由4个8段数码管显示,可以设置分和秒定时。 100...* TH0和TL0是计数器0的高8位和低8位计数器,计算办法:TL0=(65536-C)%256; * * TH0=(65536-...0x21, 0x7A, 0x20, 0x60,0xff};//0,1,2,3,4,5,6,7,8,9,关显示,数码管码表,高电平有效...
单片机C51抢答器的原理图和程序 万分感谢 急!SOS答:///数码管位码表 uchar wei_dis[]={0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f};///数码管断码表 uchar table[]={ 0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x40 };volatile uchar fenshu1,fenshu2,fenshu3,...
如何利用单片机让4位数码管显示?答:程序如下(用的是STC89C52芯片):include<reg52.h>//52系列单片机头文件 define uchar unsigned char define uint unsigned int uint x,y;uchar code table[]={ 0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};//共阴极数码管编码 void display...