很简的51单片机C语言流水灯程序

2024-11-08 19:14:05
推荐回答(5个)
回答1:

1、51单片机C语言实现循环8个流水灯左移三次,后右移三次。
例程:

#include  //51单片机头文件
#include  //包含有左右循环移位子函数的库
#define uint unsigned int    //宏定义
#define uchar unsigned char  //宏定义
sbit beep=P2^3;
void delay(uint z)  //延时函数,z的取值为这个函数的延时ms数,如delay(200);大约延时200ms.
{                    //delay(500);大约延时500ms.
    uint x,y;
    for(x=z;x>0;x--)
        for(y=110;y>0;y--);    
}
void main()            //主函数
{
    清启带uchar a,i,j;
    while(1)        //大循环
    {
        a=0xfe;     //赋初值
        for(j=0;j<3;j++) for(i=0;i<8;i++)   //左移三次
        {
            P1=a;       //点亮小灯
        旁洞    beep=0;     //开启蜂鸣器
            delay(50); //延时50毫秒
            beep=1;     //关闭蜂鸣器
            delay(50);  //再延时50毫秒
 答芦           a=_crol_(a,1); //将a变量循环左移一位
        }
        a=0x7f;
       for(j=0;j<3;j++) for(i=0;i<8;i++)  //右移三次
        {
            P1=a;       //点亮小灯
            beep=0;     //开启蜂鸣器
            delay(50); //延时50毫秒
            beep=1;     //关闭蜂鸣器
            delay(50);   //再延时50毫秒
            a=_cror_(a,1); //将a变量循环右移一位
        }        
    }
}



2、51单片机是对所有兼容Intel 8031指令系统的单片机的统称。该系列单片机的始祖是Intel的8031单片机,后来随着Flash rom技术的发展,8031单片机取得了长足的进展,成为应用最广泛的8位单片机之一,其代表型号是ATMEL公司的AT89系列,它广泛应用于工业测控系统之中。很多公司都有51系列的兼容机型推出,今后很长的一段时间内将占有大量市场。51单片机是基础入门的一个单片机,还是应用最广泛的一种。

回答2:

1、51单片机C语言实现循环8个流水灯左移三次,后右移三次。
例程:
#include //51单片机头文件
#include //包含有左右循环移位子函数的库
#define uint unsigned int //宏定义
#define uchar unsigned char //宏定义
sbit beep=P2^3;
void delay(uint z) //延时函数,z的取值为这个函数的延时ms数,如delay(200);大约延时200ms.
{ //delay(500);大约延时500ms.
uint x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
void main() //主函数
{
uchar a,i,j;
while(1) //大循环
{
a=0xfe; //赋初值
for(j=0;j<3;j++) for(i=0;i<8;i++) //左移三次
{
P1=a; //点亮小灯
beep=0; //开启蜂鸣器
delay(50); //延时闷游碰50毫秒
beep=1; //关闭蜂鸣器
delay(50); //再延时50毫秒
a=_crol_(a,1); //将a变量循环左移一位
}
a=0x7f;
for(j=0;j<3;j++) for(i=0;i<8;i++) //右移三次
{
P1=a; //点亮小灯
beep=0; //开启蜂鸣器
delay(50); //延时50毫秒
beep=1; //关闭蜂鸣器
delay(50); //再延时50毫秒
a=_cror_(a,1); //将a变量循环右移一位
}
}
}
2、51单片机是对所有兼容Intel
8031指令系统的单片机的统称。该系列单片机的始祖是Intel的8031单片机,后来随着Flash
rom技术的发展,8031单片机取得了长足的进展,成为应用最广泛的8位单片机之一,其代表型号是ATMEL公司的AT89系列,它广泛应用于工业测控蚂谈系统之中。很多公司都有51系列的兼容机型推出,今后很长的一段时间内将占有大量市场。磨哪51单片机是基础入门的一个单片机,还是应用最广泛的一种。

回答3:

#include<缺腔reg52.h>
#include
#define LED P2

void delay(char i);

void main()
{ unsigned char LedVablue=0xFE;

while(1)
{

LedVablue= _crol_(LedVablue,1); //_crol_(x,Y)是
//里面的一个库函数,相当于汇编的伏猜衫带进位循环
LED=LedVablue;
delay(100);

}
}

void delay(char i)
{
char j;
for(;i>0;i--)
for(j=0;j<兆笑250;j++);
}

回答4:

字符型char 默认为signed类型
所以你昌颂竖的延时耐大子程序里j循环条件一直满足
程序调用第一个delay(100)时陷入死循环
此时led=11111110 所以只有第一个樱槐灯一直亮
就会这种解释了
你确认只把初值
LED = 0xfe改成~LED = 0?

回答5:

//---------------------------------------
//头物册文盯正件
#include
//---------------------------------------

//---------------------------------------
//数据类型替代声明
#define u8 unsigned char
#define u16 unsigned int
//---------------------------------------

u8 led[8]={~0x01,~0x02,~0x04,~0x08,~0x10,~0x20,~0x40,~0x80};

/罩则宏/---------------------------------------
//延时子函数 延时时间为n毫秒
void delay_ms(u8 n)
{
u16 i;
for(;n>0;n--)
{
for(i=114;i>0;i--)
{
;
}
}
}
//---------------------------------------

//---------------------------------------
//流水一次子函数
void liushui(void)
{
u8 i;
for(i=0;i<=7;i++)
{
P0=led[i];
delay_ms(240);
}
}
//---------------------------------------

//---------------------------------------
//主函数
void main(void)
{
while(1)
{
liushui();
}

}
//---------------------------------------

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