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標題:
單片機交通燈怎么把時間加到一起?
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作者:
軒軒
時間:
2018-5-8 20:34
標題:
單片機交通燈怎么把時間加到一起?
怎么把時間加到一起?
#include<reg51.h>
#define uchar unsigned char
#define uint unsigned int
sbit dula=P2^6;
sbit wela=P2^7;
sbit r1=P1^0;
sbit g1=P1^2;
sbit y1=P1^1;
sbit r2=P1^4;
sbit g2=P1^6;
sbit y2=P1^5;
uchar time,num,deng,deng1;
uchar code wei[]={0xfe,0xfd,0xbf,0x7f};
uchar code duan[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};
uchar dis[4]={0,0,0,0};
void convert();
void display();
void close();
void delay(unsigned int x)
{
uchar m,k;
for(m=x;m>0;m--)
for(k=125;k>0;k--);
}
void close()
{
uchar i;
for(i=0;i<4;i++)
{
P0=wei[i];
wela=1;wela=0;
P0=0xff;
P0=duan[dis[i]];
dula=1;dula=0;
delay(20);
}
}
void main()
{
TMOD=0x01;
TR0=1;
TH0=(65536-46080)/256;
TL0=(65536-46080)%256;
EA=1;
ET0=1;
while(1)
{
close();
convert();
display();
}
}
void convert()
{
dis[0]=time/10;
dis[1]=time%10;
dis[2]=time/10;
dis[3]=time%10;¡¤¡¤
}
void time0() interrupt 1
{
TH0=(65536-46080)/256;
TL0=(65536-46080)%256;
num++;
if(num==20)
{
num=0;
time--;
}
}
void display()
{
if(time==0xff)
{
deng++;
if(deng==4)
deng=0;
switch(deng)
{
case 0: time=10;
r2=0;g2=1;y2=1;
r1=1;g1=0;y1=1;
break;
case 1: time=3;
r2=0;g2=1;y2=1;
r1=1;g1=1;y1=0;
break;
case 2: time=10;
r2=1;g2=0;y2=1;
r1=0;g1=1;y1=1;
break;
case 3: time=3;
r2=1;g2=1;y2=0;
r1=0;g1=1;y1=1;
break;
}
}
}
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