51单片机流水灯闪烁越来越快代码
时间: 2024-04-14 10:22:49 浏览: 19
当然,我可以为您介绍一下51单片机流灯闪烁越来越快的代码。以下是一个简单的示例代码:
```c
#include <reg51.h>
#define LED P1
void delay(unsigned int time) {
unsigned int i, j;
for(i = 0; i < time; i++)
for(j = 0; j < 125; j++);
}
void main() {
unsigned int i, j;
while(1) {
for(i = 0; i < 8; i++) {
LED = ~(0x01 << i);
delay(500);
}
for(j = 7; j > 0; j--) {
LED = ~(0x01 << j);
delay(500);
}
}
}
```
这段代码使用了P1口作为LED灯的控制口,通过循环控制LED灯的亮灭顺序和延时时间,实现了流水灯闪烁越来越快的效果。
相关问题
51单片机流水灯如何闪烁
以下是51单片机流水灯闪烁的代码实现:
```c
#include <reg52.h>
#define uint unsigned int
#define uchar unsigned char
sbit LED1 = P0^0;
sbit LED2 = P0^1;
sbit LED3 = P0^2;
sbit LED4 = P0^3;
sbit LED5 = P0^4;
sbit LED6 = P0^5;
sbit LED7 = P0^6;
sbit LED8 = P0^7;
void delay(uint xms) // 延时函数
{
uint i, j;
for (i = xms; i > 0; i--)
for (j = 110; j > 0; j--);
}
void main()
{
uchar i;
while (1)
{
for (i = 0; i < 8; i++) // 从左往右流水灯
{
switch (i)
{
case 0: LED1 = 0; break;
case 1: LED2 = 0; break;
case 2: LED3 = 0; break;
case 3: LED4 = 0; break;
case 4: LED5 = 0; break;
case 5: LED6 = 0; break;
case 6: LED7 = 0; break;
case 7: LED8 = 0; break;
}
delay(100); // 延时100ms
switch (i)
{
case 0: LED1 = 1; break;
case 1: LED2 = 1; break;
case 2: LED3 = 1; break;
case 3: LED4 = 1; break;
case 4: LED5 = 1; break;
case 5: LED6 = 1; break;
case 6: LED7 = 1; break;
case 7: LED8 = 1; break;
}
}
for (i = 7; i > 0; i--) // 从右往左流水灯
{
switch (i)
{
case 0: LED1 = 0; break;
case 1: LED2 = 0; break;
case 2: LED3 = 0; break;
case 3: LED4 = 0; break;
case 4: LED5 = 0; break;
case 5: LED6 = 0; break;
case 6: LED7 = 0; break;
case 7: LED8 = 0; break;
}
delay(100); // 延时100ms
switch (i)
{
case 0: LED1 = 1; break;
case 1: LED2 = 1; break;
case 2: LED3 = 1; break;
case 3: LED4 = 1; break;
case 4: LED5 = 1; break;
case 5: LED6 = 1; break;
case 6: LED7 = 1; break;
case 7: LED8 = 1; break;
}
}
}
}
```
c51单片机流水灯c语言代码
以下是c51单片机流水灯的c语言代码:
```c
#include<reg51.h>
#define LED_PORT P0 // 定义 LED 灯所在的端口
void delay(unsigned int); // 延时函数
void main(void)
{
unsigned int i;
while(1)
{
for(i=0;i<8;i++) // 循环点亮 8 盏 LED 灯
{
LED_PORT = ~(1<<i); // 按位取反,点亮 LED 灯
delay(500); // 等待一段时间
}
}
}
void delay(unsigned int time)
{
unsigned int i,j;
for(i=0;i<time;i++)
{
for(j=0;j<125;j++);
}
}
```
代码解析:
1. `LED_PORT P0` 定义了 LED 灯所在的端口为 P0 端口。
2. `delay()` 函数为延时函数,用于控制 LED 灯的闪烁速度。
3. 在 `main()` 函数中,使用 for 循环控制 8 盏 LED 灯的流水灯效果。循环中,通过 `LED_PORT = ~(1<<i)` 将第 i 盏 LED 灯点亮,再通过 `delay(500)` 函数等待一段时间,就实现了 LED 灯的流水灯效果。