#include<reg51h>
#define uchar unsigned char;
uchar distab[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71,0x00}; //0到f
uchar number,dat,dis[4];
void t0isr() interrupt 1
{
TH0=(65536-5000)/256;
TL0=(65536-5000)%256;
number++;
number%=3;
switch(number)
P1=0x20<<number;
P0=distab[dis[number]];
}
void int0isr() interrupt 0
{
dat++;
dat%=1000;
dis[0]=dat%10;
dis[1]=dat%100/10;
dis[2]=dat/100;
}
main()
{
TMOD=0x01;
TH0=(65536-5000)/256;
TL0=(65536-5000)%256;
TR1=1;
ET1=1;
EX0=1;
IT0=1;
EA=1;
while(1);
}
|P1口接8个发光二极管共阳
#include <AT89X51H>
unsigned char i;
unsigned char temp;
unsigned char a,b;
void delay(void)
{
unsigned char m,n,s;
for(m=20;m>0;m--)
for(n=20;n>0;n--)
for(s=248;s>0;s--);
}
void main(void)
{
while(1)
{
temp=0xfe;
P1=temp;
delay();
for(i=1;i<8;i++)
{
a=temp<<i;
b=temp>>(8-i);
P1=a|b;
delay();
}
for(i=1;i<8;i++)
{
a=temp>>i;
b=temp<<(8-i);
P1=a|b;
delay();
}
}
}
扩展资料：
Proteus 自从有了单片机也就有了开发系统，随着单片机的发展开发系统也在不断发展。 keil是一种先进的单片机集成开发系统。它代表着汇编语言单片机开发系统的最新发展，首创多项便利技术，将开发的编程/仿真/调试/写入/加密等所有过程一气呵成，中间不须任何编译或汇编。
参考资料来源：百度百科-51单片机
你的设计有点问题，不过你看下这个程序对你应该有帮助。
#include <reg52h>
#define int8 unsigned char
#define int16 unsigned int
#define int32 unsigned long
int8 flag;
int8 n;
int8 code table[][32]={
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/ " " /
{0x04,0x28,0x08,0x24,0x32,0x22,0xC2,0x21,0xC2,0x26,0x34,0x38,0x04,0x04,0x08,0x18,0x30,0xF0,0xC0,0x17,0x60,0x10,0x18,0x10,0x0C,0x14,0x06,0x18,0x04,0x10,0x00,0x00},/"欢",0/
{0x02,0x02,0x04,0x82,0xF8,0x73,0x04,0x20,0x02,0x00,0xE2,0x3F,0x42,0x20,0x82,0x40,0x02,0x40,0xFA,0x3F,0x02,0x20,0x42,0x20,0x22,0x20,0xC2,0x3F,0x02,0x00,0x00,0x00},/"迎",1/
{0x00,0x01,0x04,0x02,0x1C,0x0C,0xC0,0x3F,0x1C,0xC0,0x02,0x09,0x02,0x16,0x92,0x60,0x4A,0x20,0x82,0x2F,0x02,0x20,0x0E,0x24,0x00,0x22,0x90,0x31,0x0C,0x20,0x00,0x00},/"您",2/
{0x44,0x10,0x44,0x14,0x88,0x54,0x88,0x54,0xD0,0x5F,0x30,0x50,0x60,0x50,0xFE,0x7F,0x40,0x50,0x20,0x90,0xB0,0x9F,0x98,0x92,0x8C,0x94,0x88,0x34,0x80,0x11,0x00,0x00},/"乘",3/
{0x82,0x00,0x02,0x01,0x22,0x06,0x22,0x38,0x22,0x04,0x22,0x03,0x22,0x00,0xFE,0xFF,0xA2,0x00,0x22,0x01,0x22,0x02,0x22,0x3C,0x22,0x02,0x02,0x01,0x02,0x00,0x00,0x00},/"坐",4/
{0x02,0x00,0x0C,0x00,0xF0,0x3F,0x00,0x20,0x00,0x20,0x00,0x20,0x00,0x20,0x00,0xA0,0x00,0x60,0x00,0x20,0x00,0x20,0x00,0x20,0x00,0x20,0x00,0x20,0x00,0x20,0x00,0x00},/"广",5/
{0x80,0x00,0x01,0x07,0x06,0x00,0x18,0x00,0xE0,0xFF,0x00,0x04,0x00,0x03,0x00,0x00,0xFE,0x7F,0x00,0x08,0x00,0x06,0x80,0x01,0x00,0x00,0xFF,0xFF,0x00,0x00,0x00,0x00},/"州",6/
{0x00,0x00,0x04,0x20,0x04,0x21,0x04,0x21,0x04,0x21,0x04,0x21,0x04,0x21,0x04,0x21,0x04,0x21,0x04,0x21,0x04,0x21,0x04,0x21,0x04,0x21,0x04,0x20,0x04,0x00,0x00,0x00},/"三",7/
{0x20,0x08,0x20,0x86,0x7F,0x60,0x80,0x0F,0x00,0x04,0x00,0x1A,0x00,0xEA,0x00,0x2A,0x00,0x2A,0x00,0x2A,0x00,0x2A,0xF0,0x2B,0x0C,0x28,0x02,0x20,0x0F,0x00,0x00,0x00},/"汽",8/
{0x00,0x00,0x80,0x00,0x04,0x01,0x0E,0x02,0x14,0x0C,0x24,0x70,0xC4,0x21,0x8C,0x00,0x08,0x00,0x08,0x70,0x28,0x08,0x1E,0x06,0x0C,0x03,0x80,0x01,0x00,0x01,0x00,0x00},/"公",9/
{0x00,0x00,0x00,0x08,0xF8,0x49,0x20,0x49,0x20,0x49,0x20,0x49,0x20,0x49,0x20,0x49,0x20,0x49,0xF0,0x49,0x00,0x48,0x04,0x40,0x02,0x40,0xFC,0x7F,0x00,0x00,0x00,0x00},/"司",10/
{0x00,0x00,0x80,0x00,0x04,0x01,0x0E,0x02,0x14,0x0C,0x24,0x70,0xC4,0x21,0x8C,0x00,0x08,0x00,0x08,0x70,0x28,0x08,0x1E,0x06,0x0C,0x03,0x80,0x01,0x00,0x01,0x00,0x00},/"公",11/
{0x40,0x00,0x40,0x08,0x41,0x08,0x42,0x08,0x4C,0x08,0xF8,0x7F,0x50,0x08,0x40,0x08,0x40,0x08,0x60,0x08,0xD0,0x7F,0x4C,0x08,0x47,0x08,0x42,0x08,0x40,0x00,0x00,0x00},/"共",12/
{0x20,0x08,0x20,0x86,0x7F,0x60,0x80,0x0F,0x00,0x04,0x00,0x1A,0x00,0xEA,0x00,0x2A,0x00,0x2A,0x00,0x2A,0x00,0x2A,0xF0,0x2B,0x0C,0x28,0x02,0x20,0x0F,0x00,0x00,0x00},/"汽",13/
{0x20,0x00,0x20,0x20,0x20,0x21,0x20,0x23,0x20,0x25,0x20,0x39,0x20,0xE1,0x20,0x21,0xFF,0x2F,0x20,0x21,0x20,0x21,0x20,0x21,0x20,0x21,0x20,0x21,0x20,0x00,0x00,0x00},/"车",14/
{0x00,0x00,0x00,0x00,0x1A,0x00,0x1C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/"，",15/
{0x00,0x04,0x01,0x04,0x02,0x04,0x04,0x04,0x08,0x04,0x30,0x04,0xC0,0x05,0x00,0xFE,0x80,0x05,0x60,0x04,0x10,0x04,0x0C,0x04,0x06,0x04,0x03,0x04,0x02,0x04,0x00,0x00},/"大",16/
{0x00,0x02,0x40,0x0C,0x40,0x08,0x40,0x48,0x40,0x3A,0x40,0x2A,0x42,0x0A,0x41,0x8A,0xFE,0x7A,0x40,0x2B,0x40,0x0A,0x40,0x18,0x40,0xEA,0x40,0x4C,0x40,0x08,0x00,0x00},/"学",17/
{0x20,0x08,0x30,0x08,0xE0,0xFF,0x42,0x08,0x4C,0x08,0xF0,0x1F,0x10,0x12,0x1A,0x12,0xF2,0x13,0x04,0x10,0xC8,0xFF,0x30,0x10,0xCC,0x50,0x02,0x37,0x1C,0x12,0x00,0x00},/"城",18/
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0C,0x0E,0x14,0x10,0x24,0x10,0x44,0x10,0x84,0x11,0x0C,0x0E,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/"2",0/
{0x04,0x02,0x44,0x06,0xC4,0x1A,0x48,0xE3,0x48,0x46,0x48,0x00,0x04,0x09,0x04,0x09,0x08,0x09,0xC8,0xFF,0x30,0x09,0x28,0x49,0x44,0x39,0x02,0x29,0x1F,0x01,0x00,0x00},/"线",19/
{0x00,0x02,0x02,0x42,0x04,0x42,0x08,0x42,0x30,0x42,0xC0,0x7F,0x00,0x42,0x00,0x42,0x00,0x42,0x00,0x42,0xFE,0x7F,0x00,0x42,0x00,0x42,0x00,0x42,0x00,0x42,0x00,0x00},/"开",20/
{0x40,0x04,0x80,0x08,0x00,0x11,0xFF,0xEF,0x00,0x44,0x02,0x10,0x82,0x10,0x82,0x10,0x82,0x90,0xFE,0x7F,0x82,0x50,0x82,0x10,0x82,0x10,0x82,0x10,0x02,0x10,0x00,0x00},/"往",21/
{0x00,0x04,0x01,0x04,0x02,0x04,0x04,0x04,0x08,0x04,0x30,0x04,0xC0,0x05,0x00,0xFE,0x80,0x05,0x60,0x04,0x10,0x04,0x0C,0x04,0x06,0x04,0x03,0x04,0x02,0x04,0x00,0x00},/"大",22/
{0x00,0x02,0x40,0x0C,0x40,0x08,0x40,0x48,0x40,0x3A,0x40,0x2A,0x42,0x0A,0x41,0x8A,0xFE,0x7A,0x40,0x2B,0x40,0x0A,0x40,0x18,0x40,0xEA,0x40,0x4C,0x40,0x08,0x00,0x00},/"学",23/
{0x20,0x08,0x30,0x08,0xE0,0xFF,0x42,0x08,0x4C,0x08,0xF0,0x1F,0x10,0x12,0x1A,0x12,0xF2,0x13,0x04,0x10,0xC8,0xFF,0x30,0x10,0xCC,0x50,0x02,0x37,0x1C,0x12,0x00,0x00},/"城",24/
{0x00,0x00,0x00,0x00,0x1A,0x00,0x1C,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/"，",25/
{0x00,0x02,0x00,0x42,0x00,0x32,0xFE,0x23,0x04,0x00,0x08,0x44,0xFF,0x55,0x50,0x55,0x50,0x55,0x50,0xFD,0x52,0x55,0x51,0x55,0xFE,0x55,0x00,0x44,0x00,0x04,0x00,0x00},/"请",26/
{0x00,0x01,0x04,0x02,0x1C,0x0C,0xC0,0x3F,0x1C,0xC0,0x02,0x09,0x02,0x16,0x92,0x60,0x4A,0x20,0x82,0x2F,0x02,0x20,0x0E,0x24,0x00,0x22,0x90,0x31,0x0C,0x20,0x00,0x00},/"您",27/
{0x82,0x00,0x02,0x01,0x22,0x06,0x22,0x38,0x22,0x04,0x22,0x03,0x22,0x00,0xFE,0xFF,0xA2,0x00,0x22,0x01,0x22,0x02,0x22,0x3C,0x22,0x02,0x02,0x01,0x02,0x00,0x00,0x00},/"坐",28/
{0x01,0x08,0xC2,0x08,0x44,0x0F,0x28,0xF8,0x30,0x08,0xCE,0x0F,0x04,0x01,0x00,0x41,0x02,0x41,0x01,0x41,0xFE,0x4F,0x00,0x51,0x00,0x61,0x00,0x41,0x00,0x01,0x00,0x00},/"好",29/
{0x42,0x08,0x81,0x08,0xFE,0xFF,0x00,0x09,0x01,0x0A,0x01,0x01,0x02,0x11,0x0C,0x11,0x30,0x11,0xC0,0xFF,0x30,0x11,0x08,0x11,0x06,0x11,0x03,0x11,0x02,0x01,0x00,0x00},/"扶",30/
{0x20,0x08,0xC0,0x48,0x00,0x4B,0xFF,0x7F,0x00,0x89,0x9C,0x88,0x00,0x10,0xBC,0x2A,0x82,0xCA,0xC2,0x4A,0xB2,0x5A,0x82,0x6A,0xAE,0x0A,0x90,0x0F,0x0C,0x00,0x00,0x00},/"稳",31/
{0x00,0x00,0x00,0x00,0x00,0x00,0xFA,0x0F,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},/"！",32/
{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}/ " " /
};
void delay(void);
int16 offset;
void main(void)
{
int8 i;
int8 p;
flag=0x10;
n=0;
TMOD=0x01;
TH0=0xb1;
TL0=0xe0;
ET0=1;
EA=1;
TR0=1;
p=&table[0][0];
while (1)
{
for (i=0;i<8;i++) //显示左半边屏幕
{
P0=(p+offset+2i);
P2=i|0x08; //P24=0,P23=1 选中U2, 输出扫描码给U6
delay();
P0=(p+offset+2i+1);
P2=i|0x10; //P24=1,P23=0 选中U3, 输出扫描码给U7
delay();
}
for (i=8;i<16;i++) //显示右半边屏幕
{
P0=(p+offset+2i);
P2=(i-8)|0x20; //P25=1 P24=0, P23=0 选中U4,输出扫描码U8
delay();
P0=(p+offset+2i+1);
P2=(i-8)|0x40; //P26=1 P25=0, P24=0 选中U5,输出扫描码U9
delay();
}
}
}
void delay(void)
{
int16 i;
for (i=0;i<50;i++)
;
}
void timer0() interrupt 1 using 3
{
TF0=0;
TH0=0xb1;
TL0=0xe0;
if (n<10)
{
n++;
}
else
{
offset+=2;
if (offset>1100)
offset=0;
n=0;
}
}
Proteus仿真原理图：
程序如下：
#include <reg51h>
#define uchar unsigned char
#define uint unsigned int
uchar data buf[4];
uchar data sec_dx=20;//东西数默认
uchar data sec_nb=30;//南北默认值
uchar data set_timedx=20;
uchar data set_timenb=30;
int n;
uchar data b;//定时器中断次数
sbit k1=P1^6;//定义5组开关
sbit k2=P1^7;
sbit k3=P2^7;
sbit k4=P3^0;
sbit k5=P3^1;
sbit Yellow_nb=P2^5; //南北黄灯标志
sbit Yellow_dx=P2^2; //东西黄灯标志
sbit Green_nb=P2^4;
sbit Green_dx=P2^1;
sbit Buzz=P3^7;
bit Buzzer_Indicate;
bit time=0;//灯状态循环标志
bit set=1;//调时方向切换键标志
uchar code table[11]={ //共阴极字型码
0x3f, //--0
0x06, //--1
0x5b, //--2
0x4f, //--3
0x66, //--4
0x6d, //--5
0x7d, //--6
0x07, //--7
0x7f, //--8
0x6f, //--9
0x00 //--NULL
};
//函数的声明部分
void delay(int ms);//延时子程序
void key();//按键扫描子程序
void key_to1();//键处理子程序
void key_to2();
void key_to3();
void display();//显示子程序
void logo(); //开机LOGO
void Buzzer();
//主程序
void main()
{
TMOD=0X01;
TH0=0XD8;
TL0=0XF0;
EA=1;
ET0=1;
TR0=1;
EX0=1;
EX1=1;
logo();
P2=0Xc3;// 开始默认状态，东西绿灯，南北黄灯
sec_nb=sec_dx+5;
while(1)
{
key(); //调用按键扫描程序
display(); //调用显示程序
Buzzer();
}
}
//函数的定义部分
void key() //按键扫描子程序
{
if(k1!=1)
{
delay(10);
if(k1!=1)
{
while(k1!=1)
{
key_to1();
for(n=0;n<40;n++)
{ display();}
}
}
}
if(k2!=1)
{
delay(10);
if(k2!=1)
{
while(k2!=1)
{
key_to2();
for(n=0;n<40;n++)
{ display();}
}
}
}
if(k3!=1)
{
TR0=1; //启动定时器
Buzzer_Indicate=0;
sec_nb=set_timenb; //从中断回复，仍显示设置过的数值
sec_dx=set_timedx;
if(time==0)
{ P2=0X99;sec_nb=sec_dx+5; }
else { P2=0xC3;sec_dx=sec_nb+5; }
}
if(k4!=1)
{
delay(5);
if(k4!=1)
{
while(k4!=1);
set=!set;
}
}
if(k5!=1)
{
delay(5);
if(k5!=1)
{
while(k5!=1)
key_to3();
}
}
}
void display() //显示子程序
{
buf[1]=sec_dx/10; //第1位 东西秒十位
buf[2]=sec_dx%10; //第2位 东西秒个位
buf[3]=sec_nb/10; //第3位 南北秒十位
buf[0]=sec_nb%10; //第4位 南北秒个位
P1=0xff; // 初始灯为灭的
P0=0x00;
P1=0xfe; //片选LCD1
P0=table[buf[1]];
delay(1);
P1=0xff;
P0=0x00;
P1=0xfd; //片选LCD2
P0=table[buf[2]];
delay(1);
P1=0xff;
P0=0x00;
P1=0Xfb; //片选LCD3
P0=table[buf[3]];
delay(1);
P1=0xff;
P0=0x00;
P1=0Xf7;
P0=table[buf[0]]; //片选LCD4
delay(1);
}
void time0(void) interrupt 1 using 1 //定时中断子程序
{
b++;
if(b==19) // 定时器中断次数
{ b=0;
sec_dx--;
sec_nb--;
if(sec_nb<=5&&time==0) //东西黄灯闪
{ Green_dx=0;Yellow_dx=!Yellow_dx;}
if(sec_dx<=5&&time==1) //南北黄灯闪
{ Green_nb=0;Yellow_nb=!Yellow_nb;}
if(sec_dx==0&&sec_nb==5)
sec_dx=5;
if(sec_nb==0&&sec_dx==5)
sec_nb=5;
if(time==0&&sec_nb==0)
{ P2=0x99;time=!time;sec_nb=set_timenb;sec_dx=set_timenb+5;}
if(time==1&&sec_dx==0)
{P2=0Xc3;time=!time;sec_dx=set_timedx;sec_nb=set_timedx+5;}
}
}
void key_to1() //键盘处理子程序之+
{
TR0=0; //关定时器
if(set==0)
set_timenb++; //南北加1S
else
set_timedx++; //东西加1S
if(set_timenb==100)
set_timenb=1;
if( set_timedx==100)
set_timedx=1; //加到100置1
sec_nb=set_timenb ; //设置的数值赋给东西南北
sec_dx=set_timedx;
}
void key_to2() //键盘处理子程序之-
{
TR0=0; //关定时器
if(set==0)
set_timenb--; //南北减1S
else
set_timedx--; //东西减1S
if(set_timenb==0)
set_timenb=99;
if( set_timedx==0 )
set_timedx=99; //减到1重置99
sec_nb=set_timenb ; //设置的数值赋给东西南北
sec_dx=set_timedx;
}
void key_to3() //键盘处理之紧急车通行
{
TR0=0;
P2=0Xc9;
sec_dx=00;
sec_nb=00;
Buzzer_Indicate=1;
}
void int0(void) interrupt 0 using 1 //只允许东西通行
{
TR0=0;
P2=0Xc3;
Buzzer_Indicate=0;
sec_dx=00;
sec_nb=00;
}
void int1(void) interrupt 2 using 1 //只允许南北通行
{
TR0=0;
P2=0X99;
Buzzer_Indicate=0;
sec_nb=00;
sec_dx=00;
}
void logo()//开机的Logo "- - - -"
{ for(n=0;n<50;n++)
{
P0=0x40;
P1=0xfe;
delay(1);
P1=0xfd;
delay(1);
P1=0Xfb;
delay(1);
P1=0Xf7;
delay(1);
P1 = 0xff;
}
}
void Buzzer()
{
if(Buzzer_Indicate==1)
Buzz=!Buzz;
else Buzz=0;
}
void delay(int ms) //延时子程序
{
uint j,k;
for(j=0;j<ms;j++)
for(k=0;k<124;k++);
}
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