急求KEIL C51 红绿灯程序!(用C语言!)
东西和南北的时间不同步,楼主没有说得很清楚
你把时间流程说清楚我可以把代码写出来
//以下代码经过Keil C51软件调试通过
#include "reg51.h" //头文件包含
//宏定义
#define uint unsigned int
#define uchar unsigned char
#define ON 0 //0的时候灯亮
#define OFF 1 //1的时候灯亮
//管脚定义
//南北道 黄灯亮3秒 红灯亮 30秒 黄灯3秒 绿灯38秒
//东西道 黄灯亮3秒 绿灯亮 28秒 黄灯3秒 红灯40秒
sbit PortDX_Yellow = P1^0; //东西方向黄灯
sbit PortDX_Red = P1^1; //东西方向红灯
sbit PortDX_Green = P1^2; //东西方向绿灯
sbit PortNB_Yellow = P1^3; //南北方向黄灯
sbit PortNB_Red = P1^4; //南北方向红灯
sbit PortNB_Green = P1^5; //南北方向绿灯
void delay(uint ms) // 毫秒级延时(AT89C52 @ 11.0592MHz)
{
uint ti;
while(ms--)
{
for(ti=0;ti<112;ti++){}//112
}
}
/*==================== 主函数 ====================*/
void main(void)
{
delay(400); //开机延时400ms
while(1)
{
PortNB_Yellow = ON ;PortNB_Red = OFF;PortNB_Green = OFF;//南北黄灯亮3秒
PortDX_Yellow = ON ;PortDX_Red = OFF;PortDX_Green = OFF;//东西黄灯亮3秒
delay(3000);
PortNB_Yellow = OFF;PortNB_Red = ON ;PortNB_Green = OFF;//南北红灯亮28秒
PortDX_Yellow = OFF;PortDX_Red = OFF;PortDX_Green = ON ;//东西绿灯亮28秒
delay(28000);
PortNB_Yellow = OFF;PortNB_Red = ON ;PortNB_Green = OFF;//南北红灯亮2秒
PortDX_Yellow = ON ;PortDX_Red = OFF;PortDX_Green = OFF;//东西黄灯亮2秒
delay(2000);
PortNB_Yellow = ON ;PortNB_Red = OFF;PortNB_Green = OFF;//南北黄灯亮1秒
PortDX_Yellow = ON ;PortDX_Red = OFF;PortDX_Green = OFF;//东西黄灯亮1秒
delay(1000);
PortNB_Yellow = ON ;PortNB_Red = OFF;PortNB_Green = OFF;//南北黄灯亮2秒
PortDX_Yellow = OFF;PortDX_Red = ON ;PortDX_Green = OFF;//东西红灯亮2秒
delay(2000);
PortNB_Yellow = OFF;PortNB_Red = OFF;PortNB_Green = ON ;//南北绿灯亮38秒
PortDX_Yellow = OFF;PortDX_Red = ON ;PortDX_Green = OFF;//东西红灯亮38秒
delay(3800);
}
}
你的这个工程量比较大，而且要硬件配合，我只能给你一部分代码。下面是延时和数码管显示的部分程序，可供你参考。
void Delay_100us() //100us延时
{
unsigned char i;
for(i=0;i
//12M晶振
//共阴数码管
#include <reg51.h>
sbit red=P1^0;
sbit green=P1^1;
sbit yellow=P1^2;
bit flag=1;
unsigned char code duan[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};
unsigned char code wei[ ]={0xfd,0xfe};
unsigned char time=35;
void main()
{
void show_time();
void show_light();
EA=1;
ET0=1;
TMOD=0x01;
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
TR0=1;
red=0;
while(1)
{
show_time();
show_light();
}
}
void show_time()
{
void delay();
unsigned char num=time,i;
for(i=0;i<2;++i)
{
P2=wei[i];
P0=duan[num%10];
delay();
P0=0x00;
num/=10;
}
}
void delay()
{
int i;
for(i=1000;i;i--);
}
void show_light()
{
if(flag)
{
if(!time)
{
flag=0;
red=1;
green=0;
time=35;
}
}
else
{
if(time>0&&time<4)
{
green=1;
yellow=0;
}
if(!time)
{
yellow=1;
red=0;
flag=1;
time=35;
}
}
}
void dec_sec() interrupt 1
{
static count=0;
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
if(++count==20)
{
count=0;
time--;
}
}