利用51单片机和3位数码管实现10分钟内的简易计时器答:0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};sbit key1=P2^7;sbit key2=P2^6;sbit weiH=P3^0;sbit weiM=P3^1;sbit weiL=P3^2;
这是计时器的程序和电路图,用的bcd数码管,仿真不成功,不知道哪里错了...答:/***程序仿真用89c52 数码管用共阳极数码管 P0口段选,P3.0和P3.1位选 定时器2用法见百度“T2CON”***/ include<reg52.h> define uint unsigned int define uchar unsigned char uchar code num[12]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff,0xbf}; //共阳极...