㈠ 51单片机C程序怎样把LED灯从左到右点亮然后又从右到左点亮然后循环
#include<reg51.h>
unsigned char ledtab[]={0x7f,0xbf,0xdf,0xef,0xf7,0xfb,0xfd,0xfe}
void delay(unsigned char a)
{
unsigned char i,j;
for(i=0;i<a;i++)
for(j=0;j<120;j++);
}
main()
{
unsigned char i;
while(1)
{
for(i=0;i<8;i++){P0=ledtab[i];delay(100);}
for(i=0;i<8;i++){P0=ledtab[7-i];delay(100);}
}
}
㈡ 基于51单片机16个彩灯从左到右再从右左循环闪烁的汇编程序
#include <reg52.h>
#include <intrins.h>
#define uint unsigned int //16位
#define uchar unsigned char//8位
sbit led=P2^0;
sbit k0=P1^0;
sbit k1=P1^1;
void delay(uint z);
void youyi();
void zuoyi();
uchar i;
uchar temp1=0x01;//0000 0001
uchar temp2=0x80;//1000 0000
uchar flag0=0;
uchar flag1=0;
void main()
{
while(1)
{
if(k0==0)//左移
{
flag0=1;
}
if(k1==0)//右移
{
flag1=1;
}
if(flag0==1)
{
zuoyi();
temp2=0x80;
}
if(flag1==1)
{
youyi();
temp1=0x01;
}
}
}
void zuoyi()
{
for(i=0;i<7;i++)//i++ i=i+1
{
P2=temp1;
temp1=_crol_(temp1,1);//0000 0010
delay(500);
}
}
void youyi()
{
for(i=0;i<7;i++)//i++ i=i+1
{
P2=temp2;
temp2=_cror_(temp2,1);//1000 0000
delay(500);
}
}
void delay(uint z)
{
uint x , y;
for(x=110;x>0;x--)
for(y=z;y>0;y--);
㈢ 求16个流水灯程序,有模式还可以调节快慢的,急求,谢谢。
《基于8051+Proteus仿真》案例
第01 篇基础程序设计
01 闪烁的LED
/* 名称:闪烁的LED
说明:LED按设定的时间间隔闪烁
*/
#include<reg51.h>
#define uchar unsigned char
#define uint unsigned int
sbit LED=P1^0;
//延时
void DelayMS(uint x)
{
uchari;
while(x--)
{
for(i=0;i<120;i++);
}
}
//主程序
void main()
{
while(1)
{
LED=~LED;
DelayMS(150);
}
}
02 从左到右的流水灯
/* 名称:从左到右的流水灯
说明:接在P0口的8个LED从左到右循环依次点亮,产生走马灯效果
*/
#include<reg51.h>
#include<intrins.h>
#define uchar unsigned char
#define uint unsigned int
//延时
void DelayMS(uint x)
{
uchari;
while(x--)
{
for(i=0;i<120;i++);
}
}
//主程序
void main()
{
P0=0xfe;
while(1)
{
P0=_crol_(P0,1);//P0的值向左循环移动
DelayMS(150);
}
}
03 8只LED左右来回点亮
/* 名称:8只LED左右来回点亮
说明:程序利用循环移位函数_crol_和_cror_形成来回滚动的效果
*/
#include<reg51.h>
#include<intrins.h>
#define uchar unsigned char
#define uint unsigned int
//延时
void DelayMS(uint x)
{
uchari;
while(x--)
{
for(i=0;i<120;i++);
}
}
//主程序
void main()
{
uchari;
P2=0x01;
while(1)
{
for(i=0;i<7;i++)
{
P2=_crol_(P2,1);//P2的值向左循环移动
DelayMS(150);
}
for(i=0;i<7;i++)
{
P2=_cror_(P2,1);//P2的值向右循环移动
DelayMS(150);
}
}
}
04 花样流水灯
/* 名称:花样流水灯
说明:16只LED分两组按预设的多种花样变换显示
*/
#include<reg51.h>
#define uchar unsigned char
#define uint unsigned int
uchar code Pattern_P0[]=
{
0xfc,0xf9,0xf3,0xe7,0xcf,0x9f,0x3f,0x7f,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xe7,0xdb,0xbd,0x7e,0xbd,0xdb,0xe7,0xff,0xe7,0xc3,0x81,0x00,0x81,0xc3,0xe7,0xff,
0xaa,0x55,0x18,0xff,0xf0,0x0f,0x00,0xff,0xf8,0xf1,0xe3,0xc7,0x8f,0x1f,0x3f,0x7f,
0x7f,0x3f,0x1f,0x8f,0xc7,0xe3,0xf1,0xf8,0xff,0x00,0x00,0xff,0xff,0x0f,0xf0,0xff,
0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x7f,0xbf,0xdf,0xef,0xf7,0xfb,0xfd,0xfe,
0xfe,0xfc,0xf8,0xf0,0xe0,0xc0,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xc0,0xe0,0xf0,0xf8,0xfc,0xfe,
0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff
};
uchar code Pattern_P2[]=
{
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0xfc,0xf9,0xf3,0xe7,0xcf,0x9f,0x3f,0xff,
0xe7,0xdb,0xbd,0x7e,0xbd,0xdb,0xe7,0xff,0xe7,0xc3,0x81,0x00,0x81,0xc3,0xe7,0xff,
0xaa,0x55,0x18,0xff,0xf0,0x0f,0x00,0xff,0xf8,0xf1,0xe3,0xc7,0x8f,0x1f,0x3f,0x7f,
0x7f,0x3f,0x1f,0x8f,0xc7,0xe3,0xf1,0xf8,0xff,0x00,0x00,0xff,0xff,0x0f,0xf0,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f,
0x7f,0xbf,0xdf,0xef,0xf7,0xfb,0xfd,0xfe,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0xfc,0xf8,0xf0,0xe0,0xc0,0x80,0x00,
0x00,0x80,0xc0,0xe0,0xf0,0xf8,0xfc,0xfe,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff
};
//延时
void DelayMS(uint x)
{
uchari;
while(x--)
{
for(i=0;i<120;i++);
}
}
//主程序
void main()
{
uchari;
while(1)
{ //从数组中读取数据送至P0和P2口显示
for(i=0;i<136;i++)
{
P0=Pattern_P0[i];
P2=Pattern_P2[i];
DelayMS(100);
}
}
}
05 LED模拟交通灯
/* 名称:LED模拟交通灯
说明:东西向绿灯亮若干秒,黄灯闪烁5次后红灯亮, 红灯亮后,南北向由红灯变为绿灯,若干秒后南北向黄灯闪烁5此后变红灯,东西向变绿灯,如此重复。
*/
#include<reg51.h>
#define uchar unsigned char
#define uint unsigned int
sbit RED_A=P0^0; //东西向灯
sbit YELLOW_A=P0^1;
sbit GREEN_A=P0^2;
sbit RED_B=P0^3; //南北向灯
sbit YELLOW_B=P0^4;
sbit GREEN_B=P0^5;
uchar Flash_Count=0,Operation_Type=1; //闪烁次数,操作类型变量
//延时
void DelayMS(uint x)
{
uchari;
while(x--)for(i=0;i<120;i++);
}
//交通灯切换
void Traffic_Light()
{
switch(Operation_Type)
{
case1: //东西向绿灯与南北向红灯亮
RED_A=1;YELLOW_A=1;GREEN_A=0;
RED_B=0;YELLOW_B=1;GREEN_B=1;
DelayMS(2000);
Operation_Type=2;
break;
case2: //东西向黄灯闪烁,绿灯关闭
DelayMS(300);
YELLOW_A=~YELLOW_A;GREEN_A=1;
if(++Flash_Count!=10)return; //闪烁5次
Flash_Count=0;
Operation_Type=3;
break;
case3: //东西向红灯,南北向绿灯亮
RED_A=0;YELLOW_A=1;GREEN_A=1;
RED_B=1;YELLOW_B=1;GREEN_B=0;
DelayMS(2000);
Operation_Type=4;
break;
case4: //南北向黄灯闪烁5次
DelayMS(300);
YELLOW_B=~YELLOW_B;GREEN_B=1;
if(++Flash_Count!=10)return;
Flash_Count=0;
Operation_Type=1;
}
}
//主程序
void main()
{
while(1)Traffic_Light();
}
06 单只数码管循环显示0~9
/* 名称:单只数码管循环显示0~9
说明:主程序中的循环语句反复将0~9的段码送至P0口,使数字0~9循环显示
*/
#include<reg51.h>
#include<intrins.h>
#define uchar unsigned char
#define uint unsigned int
uchar codeDSY_CODE[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff};
//延时
void DelayMS(uint x)
{
uchart;
while(x--)for(t=0;t<120;t++);
}
//主程序
void main()
{
uchari=0;
P0=0x00;
while(1)
{/* for(;i<11;i++){ P0=~DSY_CODE[i]; DelayMS(300);} //注:另一方案 */
P0=~DSY_CODE[i];
i=(i+1)%10;
DelayMS(300);
}
}
07 8只数码管滚动显示单个数字
/* 名称:8只数码管滚动显示单个数字
说明:数码管从左到右依次滚动显示0~7,程序通过每次仅循环选通一只数码管
*/
#include<reg51.h>
#include<intrins.h>
#define uchar unsigned char
#define uint unsigned int
uchar codeDSY_CODE[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};
//延时
void DelayMS(uint x)
{
uchart;
while(x--)for(t=0;t<120;t++);
}
//主程序
void main()
{
uchari,wei=0x80;
while(1)
{
for(i=0;i<8;i++)
{
P2=0xff; //关闭显示
wei=_crol_(wei,1);
P0=DSY_CODE[i]; //发送数字段码
P2=wei; //发送位码
DelayMS(300);
}
}
}
08 8只数码管动态显示多个不同字符
电路如上图
/* 名称:8只数码管动态显示多个不同字符
说明:数码管动态扫描显示0~7。
*/
#include<reg51.h>
#include<intrins.h>
#define uchar unsigned char
#define uint unsigned int
uchar codeDSY_CODE[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};
//延时
void DelayMS(uint x)
{
uchart;
while(x--)for(t=0;t<120;t++);
}
//主程序
void main()
{
uchari,wei=0x80;
while(1)
{
for(i=0;i<8;i++)
{
P2=0xff;
P0=DSY_CODE[i]; //发送段码
wei=_crol_(wei,1);
P2=wei; //发送位码
DelayMS(2);
}
}
}
09 8只数码管闪烁显示数字串
电路如上图
/* 名称:8只数码管闪烁显示数字串
说明:数码管闪烁显示由0~7构成的一串数字
本例用动态刷新法显示一串数字,在停止刷新时所有数字显示消失。
*/
#include<reg51.h>
#define uchar unsigned char
#define uint unsigned int
//段码表
uchar codeDSY_CODE[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};
//位码表
uchar codeDSY_IDX[]={0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80};
//延时
void DelayMS(uint x)
{
uchart;
while(x--)for(t=0;t<120;t++);
}
//主程序
void main()
{
uchari,j;
while(1)
{
for(i=0;i<30;i++)
{
for(j=0;j<8;j++)
{
P0=0xff;
P0=DSY_CODE[j]; //发送段码
P2=DSY_IDX[j]; //发送位码
DelayMS(2);
}
}
P2=0x00; //关闭所有数码管并延时
DelayMS(1000);
}
}
10 8只数码管滚动显示数字串
电路如上图
/* 名称:8只数码管滚动显示数字串
说明:数码管向左滚动显示3个字符构成的数字串
*/
#include<reg51.h>
#include<intrins.h>
#define uchar unsigned char
#define uint unsigned int
//段码表
uchar codeDSY_CODE[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff};
//下面数组看作环形队列,显示从某个数开始的8个数(10表示黑屏)
uchar Num[]={10,10,10,10,10,10,10,10,2,9,8};
//延时
void DelayMS(uint x)
{
uchart;
while(x--)for(t=0;t<120;t++);
}
//主程序
void main()
{
uchari,j,k=0,m=0x80;
while(1)
{ //刷新若干次,保持一段时间的稳定显示
for(i=0;i<15;i++)
{
for(j=0;j<8;j++)
{ //发送段码,采用环形取法,从第k个开始取第j个
P0=0xff;
P0=DSY_CODE[Num[(k+j)%11]];
m=_crol_(m,1);
P2=m; //发送位码
DelayMS(2);
}
}
k=(k+1)%11; //环形队列首支针k递增,Num下标范围0~10,故对11取余
}
}
11 K1-K4 控制LED移位
/* 名称:K1-K4 控制LED移位
说明:按下K1时,P0口LED上移一位;
按下K2时,P0口LED下移一位;
按下K3时,P2口LED上移一位;
按下K4时,P2口LED下移一位;
*/
#include<reg51.h>
#include<intrins.h>
#define uchar unsigned char
#define uint unsigned int
//延时
void DelayMS(uint x)
{
uchari;
while(x--)for(i=0;i<120;i++);
}
//根据P1口的按键移动LED
void Move_LED()
{
if ((P1&0x10)==0) P0=_cror_(P0,1); //K1
elseif((P1&0x20)==0) P0=_crol_(P0,1); //K2
elseif((P1&0x40)==0) P2=_cror_(P2,1);//K3
elseif((P1&0x80)==0) P2=_crol_(P2,1); //K4
}
//主程序
void main()
{
ucharRecent_Key; //最近按键
P0=0xfe;
P2=0xfe;
P1=0xff;
Recent_Key=0xff;
while(1)
{
if(Recent_Key!=P1)
{
Recent_Key=P1; //保存最近按键
Move_LED();
DelayMS(10);
}
}
}