用单片机设计一个时钟,可显示时和分,可以调时间,也要有闹钟功能,要有设...答:其实不用定时中断也能实现功能:include<reg51.h> 主函数 unsigned char tab[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};定义0-9数组 unsigned int tmp;定义变量 void delay(unsigned int xms)定义延时函数 {unsigned int j,i;for(i=0;i<xms;i++)for(j=0;j<100...
基于单片机的数字钟 论文设计答:MOV 20H,#00H ;一秒钟时间到,清零20H MOV A,21H ADD A,#01H DA A ;作十进制调整 MOV 21H,A CJNE A,#60H,RETI1 MOV 21H,#00H ;一分钟到 MOV A,22H ADD A,#01H DA A MOV 22H,A CJNE A,#60H,RETI1 MOV 22H,#00H ;一小时到 MOV A,23H ADD A,#01H DA ...