keil流水灯八个led灯代码
时间: 2024-06-11 14:01:15 浏览: 21
Keil是一款常用的嵌入式开发具,用于编写和调试嵌入式系统的代码。流水灯是一种常见的示例程序,用于演示多个LED灯按照一定的顺序依次亮起和熄灭的效果。下面是一个使用Keil编写的流水灯八个LED灯的代码示例:
```c
#include <reg51.h>
#define LED_PORT P1
void delay(unsigned int count)
{
unsigned int i, j;
for (i = 0; i < count; i++)
for (j = 0; j < 5000; j++);
}
void main()
{
unsigned char pattern = 0x01;
while (1)
{
LED_PORT = pattern;
delay(100);
pattern <<= 1;
if (pattern == 0x00)
pattern = 0x01;
}
}
```
上述代码使用了P1口作为控制LED灯的端口,通过不断改变pattern变量的值来控制LED灯的亮灭顺序。delay函数用于延时,实现流水灯效果。在主函数中,通过循环不断改变pattern的值,并将其赋值给LED_PORT,从而实现LED灯的流水灯效果。
相关问题
keil uvision5八个led流水灯代码
以下是KEIL uVision5的八个LED流水灯代码:
```c
#include <REGX52.H>
void Delay_ms(unsigned int ms)
{
unsigned int i,j;
for(i=0;i<ms;i++)
for(j=0;j<114;j++);
}
void main()
{
unsigned char led = 0x01;
while(1)
{
P1 = ~led;
Delay_ms(200);
led <<= 1;
if(led == 0x00)
led = 0x01;
}
}
```
注:本代码适用于STC89C52芯片,如果使用其他芯片需要修改引脚定义。
keil写32个流水灯变换代码
以下是Keil编写32个流水灯变换的示例代码:
```c
#include <reg52.h>
#define uchar unsigned char
#define uint unsigned int
sbit led1 = P2^0;
sbit led2 = P2^1;
sbit led3 = P2^2;
sbit led4 = P2^3;
sbit led5 = P2^4;
sbit led6 = P2^5;
sbit led7 = P2^6;
sbit led8 = P2^7;
sbit led9 = P1^0;
sbit led10 = P1^1;
sbit led11 = P1^2;
sbit led12 = P1^3;
sbit led13 = P1^4;
sbit led14 = P1^5;
sbit led15 = P1^6;
sbit led16 = P1^7;
sbit led17 = P0^0;
sbit led18 = P0^1;
sbit led19 = P0^2;
sbit led20 = P0^3;
sbit led21 = P0^4;
sbit led22 = P0^5;
sbit led23 = P0^6;
sbit led24 = P0^7;
sbit led25 = P3^0;
sbit led26 = P3^1;
sbit led27 = P3^2;
sbit led28 = P3^3;
sbit led29 = P3^4;
sbit led30 = P3^5;
sbit led31 = P3^6;
sbit led32 = P3^7;
void delay(uint xms) {
uint i,j;
for(i=xms;i>0;i--) {
for(j=112;j>0;j--);
}
}
void main() {
while(1) {
led1 = 0; delay(50);
led2 = 0; delay(50);
led3 = 0; delay(50);
led4 = 0; delay(50);
led5 = 0; delay(50);
led6 = 0; delay(50);
led7 = 0; delay(50);
led8 = 0; delay(50);
led9 = 0; delay(50);
led10 = 0; delay(50);
led11 = 0; delay(50);
led12 = 0; delay(50);
led13 = 0; delay(50);
led14 = 0; delay(50);
led15 = 0; delay(50);
led16 = 0; delay(50);
led17 = 0; delay(50);
led18 = 0; delay(50);
led19 = 0; delay(50);
led20 = 0; delay(50);
led21 = 0; delay(50);
led22 = 0; delay(50);
led23 = 0; delay(50);
led24 = 0; delay(50);
led25 = 0; delay(50);
led26 = 0; delay(50);
led27 = 0; delay(50);
led28 = 0; delay(50);
led29 = 0; delay(50);
led30 = 0; delay(50);
led31 = 0; delay(50);
led32 = 0; delay(50);
led1 = 1;
led2 = 1;
led3 = 1;
led4 = 1;
led5 = 1;
led6 = 1;
led7 = 1;
led8 = 1;
led9 = 1;
led10 = 1;
led11 = 1;
led12 = 1;
led13 = 1;
led14 = 1;
led15 = 1;
led16 = 1;
led17 = 1;
led18 = 1;
led19 = 1;
led20 = 1;
led21 = 1;
led22 = 1;
led23 = 1;
led24 = 1;
led25 = 1;
led26 = 1;
led27 = 1;
led28 = 1;
led29 = 1;
led30 = 1;
led31 = 1;
led32 = 1;
}
}
```
这是一个简单的流水灯程序,利用了单片机的GPIO口控制LED灯的开关状态,通过循环控制LED灯的亮灭顺序,实现流水灯效果。在程序中,使用了一个延时函数 `delay()`,用于控制每盏LED灯亮灭的时间间隔。注意在使用时需要根据硬件连接情况修改对应的GPIO口定义和延时时间。