stc89c52rc模拟红绿灯程序
时间: 2023-08-12 19:07:50 浏览: 117
好的,以下是一份stc89c52rc模拟红绿灯程序的示例代码:
```c
#include <reg52.h>
sbit red_light = P1^0; // 红灯控制引脚
sbit yellow_light = P1^1; // 黄灯控制引脚
sbit green_light = P1^2; // 绿灯控制引脚
void delay(int ms)
{
int i, j;
for (i = 0; i < ms; i++) {
for (j = 0; j < 120; j++);
}
}
void red_light_on()
{
red_light = 0;
yellow_light = 1;
green_light = 1;
}
void yellow_light_on()
{
red_light = 1;
yellow_light = 0;
green_light = 1;
}
void green_light_on()
{
red_light = 1;
yellow_light = 1;
green_light = 0;
}
void main()
{
while (1) {
red_light_on();
delay(5000);
yellow_light_on();
delay(2000);
green_light_on();
delay(5000);
yellow_light_on();
delay(2000);
}
}
```
该程序使用了STC89C52RC单片机,通过控制P1口的3个引脚来控制红绿灯。程序循环执行,每隔5秒钟亮红灯,持续2秒钟后亮黄灯,持续2秒钟后亮绿灯,持续5秒钟后亮黄灯,循环往复。可以根据实际需要调整灯亮的时长和顺序。
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