#include "REGX52.H"
#include "smg.h"
#include "delay.h"
#include "Timer0.h"
int Time_SMG=0,Timer0Count=0,blink=0,Timer0Count2=0;
int flag=1;
// 定义IO口连接
sbit RedEastWest = P1^0; // 东西向红灯
sbit YellowEastWest = P1^1; // 东西向黄灯
sbit GreenEastWest = P1^2; // 东西向绿灯
sbit RedNorthSouth = P1^3; // 南北向红灯
sbit YellowNorthSouth = P1^4; // 南北向黄灯
sbit GreenNorthSouth = P1^5; // 南北向绿灯
// 主函数
void main() {
Timer0Init();
P3_7=0;
while (1) {
//过程：东西红灯33秒，南北绿灯27秒，绿灯以占空比50闪烁3秒，黄灯三秒；
if (flag==0){
RedEastWest=0;
GreenEastWest=1;
YellowEastWest=1;
if(Time_SMG<27){
GreenNorthSouth=0;
RedNorthSouth=1;
YellowNorthSouth=1;
}
else if(Time_SMG>=27&&Time_SMG<=30){
blink=1;//绿灯闪烁
}
else if (Time_SMG>30)
{
blink=0;
GreenNorthSouth=1;
YellowNorthSouth=0;
RedNorthSouth=1;
}
}
else if (flag==1){
RedNorthSouth=0;
GreenNorthSouth=1;
YellowNorthSouth=1;
if(Time_SMG<27){
GreenEastWest=0;
YellowEastWest=1;
RedEastWest=1;
}
else if(Time_SMG>=27&&Time_SMG<=30){
blink=1;//绿灯闪烁
}
else if (Time_SMG>30)
{
blink=0;
GreenEastWest=1;
YellowEastWest=0;
RedEastWest=1;
}
}
smg(1,Time_SMG%10);
smg(2,Time_SMG/10);
}
}
//主函数中断示例
void Timer0Routine() interrupt 1 //中断
{
TL0 = 0x66; //设置定时初值
TH0 = 0xFC; //设置定时初值【注意：这里的定时初值要与函数Timer0Init内的初值一样】10ms
Timer0Count++; //每1ms打断一次，计数器加1
Timer0Count2++;
if(Timer0Count>=1000) //当计数器到1000，即经过1秒
{
Time_SMG++;
Timer0Count=0;
}
if(Time_SMG>33){
Time_SMG=0;
flag=!flag;
}
if(Timer0Count2>=500) //当计数器到100，即经过0.1秒
{
Timer0Count2=0;
if(blink==1)
{
if(flag==0)
{
GreenNorthSouth=!GreenNorthSouth;
}
else if (flag==1)
{
GreenEastWest=!GreenEastWest;
}
}
}
}
