单片机怎么设计一个0-9的一位数秒表,用定时器实现 c语言程序及其...答:include<reg52.h> // 包含51单片机寄存器定义的头文件 unsigned char code Tab[11]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff};//数码管显示0~9的段码表 unsigned char int_time; //记录中断次数 unsigned char second; //储存秒 / 函数功能:快速动态扫描...
用单片机显示数字,要怎么写?答:define uchar unsigned char uchar code table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,//0~9段码 0x77,0x7c,0x39,0x5e,0x79,0x71,};//共阴数码管A~F段码表 uchar buf[]={0x0a,0x0b,0x0c,0x0d,0x0e,0x0f};//显示字母 void delay()//延时子程序 { u...
基于51单片机的999倒计时C语言程序。答:}; //共阴段码表 //0,1,2,3,4,5,6,7,8,9,A,b,C,c,d,E,F,NULL,- uchar code dispbitcode[]= {0xef,0xdf,0xbf,0x7f}; //共阴位码表 uchar dispbuf[4],dispcount;//开辟四个显示缓冲区 void ledinit()/***初始化子函数,定时器0刷新显示内容***/ { TMOD|=0x01; // ...
51单片机C语言程序注释标注(写全)答:include <reg51.h> //调用头文件reg51.hvoid main() //主函数{unsigned char // 无符号字符型tab[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0x88,0x83,0xc6,0xa1,0x86,0x8e};//定义一个数组 LED数码管译码用的码表while(1) //主循环{P2=P2|0x07; // P2口...
单片机中二位数码管的显示,怎样用c语言写一段从0到99的程序啊?_百度知 ...答:sbit shi=P0^3; //十位公共极 sbit ge=P0^2; //个位公共极 define Out P1 //数据输出端 unsigned char tab[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90}; //共阳 // 实际显示 0 1 2 3 4 5 6 7 8 9 //延时--- ...
单片机99s码表设计答:unsigned char code dispcode[]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,0x88,0x83,0xC6,0xA1,0x86,0x8E,0x00};unsigned char second;unsigned char keycnt;unsigned int tcnt;void main(void){ unsigned char i,j;TMOD=0x02;ET0=1;EA=1;second=0;P1=dispcode[...