Proteus
仿真原理图：
Keil C源程序：
#include
#define uchar unsigned char
#define uint unsigned int
sbit RED_DONGXI = P1^0;//南北方向红灯亮
sbit YELLOW_DONGXI = P1^1;//南北方向黄灯亮
sbit RED_NANBEI = P1^3;//东西方向红灯亮
sbit GREEN_DONGXI = P1^2;//南北方向绿灯亮
sbit YELLOW_NANBEI = P1^4;//东西方向黄灯亮
sbit GREEN_NANBEI = P1^5;//东西方向绿灯亮
sbit DXweixuan1 = P1^6;//南北方向数码管位选1
sbit DXweixuan2 = P1^7;//南北方向数码管位选2
sbit NBweixuan1 = P3^0;//东西方向数码管位选1
sbit NBweixuan2 = P3^1;//东西方向数码管位选2
sbit L1=P3^5;
sbit L2=P3^6;
sbit L3=P3^7;
uint aa, bai,shi,ge,bb;
uint shi1,ge1,shi2,ge2;
uint code table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f}; uint code table1[]={0xfc,0x60,0xda,0xf2,0x66,0xb6,0xbe,0xe0,0xfe,0xf6};
void delay(uint z);
void init(uint a);
void display(uint shi1,uint ge1,uint shi2,uint ge2);
void xtimer0();
void init1();
void init2();
void init3();
void init4();
void init5();
void xint1();
void xint0();
void LED_ON();
void LED_OFF();
void main()
{
P0=0xFF;
P1=0xFF;
P2=0x00;
P3=0xFF;
EA=1;
EX0=1;
IT0=0;
init1();
while(1)
{
init2();//第2个状态
init3(); //第3个状态
init4(); //第4个状态
init5();//第5个状态
}
}
void init1()//第一个状态：东西、南北方向均亮红灯5S
{
uint temp;
temp=5;
TMOD=0x01;
TH0=(65535-50000)/256;
TL0=(65535-50000)%256;
EA=1;
ET0=1;
TR0=1;
while(1)
{
} } RED_DONGXI=0; //第一个状态东西、南北均亮红灯5S RED_NANBEI=0; GREEN_DONGXI=1; GREEN_NANBEI=1; YELLOW_DONGXI=1; YELLOW_NANBEI=1; if(aa==20)//定时20*50MS=1S { aa=0; temp--; } shi1=shi2=temp/10; ge1=ge2=temp%10; if(temp==0) { temp=5; break; } display(ge1,shi1,ge2,shi2);
void init2()//第二个状态：东西亮红灯30S~5S、南北亮绿灯25~0S; {
uint temp;
temp=26;
TMOD=0x01;
TH0=(65535-50000)/256;
TL0=(65535-50000)%256;
EA=1;
ET0=1;
TR0=1;
while(1)
{
RED_DONGXI=1;
RED_NANBEI=0;
GREEN_DONGXI=0;
GREEN_NANBEI=1;
YELLOW_DONGXI=1;//第二个状态：东西亮绿灯25S、南北亮红灯 YELLOW_NANBEI=1;
if(aa==20)//定时20*50MS=1S
{
aa=0;
temp--;
shi1=(temp+5)/10;
ge1=(temp+5)%10;
shi2=temp/10;
ge2=temp%10;
if(temp==0)
{
temp=26;
break;
}
}
display(ge1,shi1,ge2,shi2);
}
}
void init3() //第三个状态：东西绿灯变为黄灯闪5次、南北亮红灯5S {
uint temp;
temp=6;
TMOD=0x01;
TH0=(65535-50000)/256;
TL0=(65535-50000)%256;
EA=1;
ET0=1;
TR0=1;
while(1)
{
RED_NANBEI=0;
GREEN_DONGXI=1;
} } if(aa==20)//定时20*50MS=1S { aa=0; temp--; YELLOW_DONGXI=~YELLOW_DONGXI; shi1=temp/10; shi2=shi1; ge1=temp%10; ge2=ge1; } if(temp==0) { temp=6; break; } display(ge1,shi1,ge2,shi2);
void init4()//第四个状态：东西亮绿灯25~0S，南北方向亮红灯30~5S； {
uint temp;
temp=26;
TMOD=0x01;
TH0=(65535-50000)/256;
TL0=(65535-50000)%256;
EA=1;
ET0=1;
TR0=1;
while(1)
{
RED_DONGXI=0;
RED_NANBEI=1;
}
} YELLOW_DONGXI=1;//第一个状态东西、南北均亮红灯5S GREEN_NANBEI=0; if(aa==20) { aa=0; temp--; shi1=temp/10; shi2=(temp+5)/10; ge1=temp%10; ge2=(temp+5)%10; if(temp==0) { temp=26; break; } } display(ge1,shi1,ge2,shi2);
void init5()//第五个状态：东西亮红灯、南北绿灯闪5次转亮黄灯5S {
uint temp;
temp=6;
TMOD=0x01;
TH0=(65535-50000)/256;
TL0=(65535-50000)%256;
EA=1;
ET0=1;
TR0=1;
while(1)
{
RED_NANBEI=1;
RED_DONGXI=0;
GREEN_DONGXI=1;
GREEN_NANBEI=1;
if(aa==20)
{
aa=0;
temp--;
YELLOW_NANBEI=~YELLOW_NANBEI;
shi1=temp/10;
shi2=shi2;
ge1=temp%10;
ge2=ge1;
if(temp==0)
{
temp=6;
break;
}
}
display(ge1,shi1,ge2,shi2);
}
}
void display(uint shi1,uint ge1,uint shi2,uint ge2) {
DXweixuan1=0;
DXweixuan2=1;
NBweixuan1=1;
NBweixuan2=1;
P0=table[ge1];
delay(5);
DXweixuan1=1;
DXweixuan2=0;
NBweixuan1=1;
NBweixuan2=1;
P0=table[shi1];
delay(5);
DXweixuan1=1;
DXweixuan2=1;
NBweixuan1=0;
NBweixuan2=1;
P0=table[ge2]; delay(5);
DXweixuan1=1; DXweixuan2=1; NBweixuan1=1; NBweixuan2=0; P0=table[shi2]; delay(5);
}
void xint0() interrupt 0 {
RED_NANBEI=0; RED_DONGXI=0; GREEN_NANBEI=1; GREEN_DONGXI=1; YELLOW_NANBEI=1; YELLOW_DONGXI=1; P0=0x00;
NBweixuan1=0; NBweixuan2=0; DXweixuan1=0; DXweixuan2=0; delay(2);
return ;
}
void xint1() interrupt 2 {
RED_NANBEI=1; RED_DONGXI=1; GREEN_NANBEI=0; GREEN_DONGXI=0; YELLOW_NANBEI=1; YELLOW_DONGXI=1; P0=0x00;
NBweixuan1=0; NBweixuan2=0; DXweixuan1=0; DXweixuan2=0; delay(2);
return ;
}
void xtimer0() interrupt 1 {
TH0=(65535-50000)/256;
TL0=(65535-50000)%256; aa++;
}
void delay(uint z) {uint x,y;
for(x=0;x
for(y=0;y
