单片机C语言程序设计实训100例——基于8051+Proteus仿真(前25题)

单片机C语言程序设计实训100例 ——基于8051+ Proteus仿真 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=P10;

//延时

void DelayMS(uint x)

{

uchar i;

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)

{

uchar i;

while(x--)

{

for(i=0;i<120;i++);

}

}

//主程序

void main()

{ //int j,i;

P0=0xfe;

while(1)

{

P0=_crol_(P0,1); //P0的值向左循环移动 //P0=~(1<<j++); DelayMS(150);if(j= =8)j=0; 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)

{

uchar i;

while(x--)

{

for(i=0;i<120;i++);

}

}

//主程序

void main()

{

uchar i;

P2=0x01;

while(1)

{

for(i=0;i<7;i++)

{

P2=_crol_(P2,1); //P2的值向左循环移动 //p2=~(1<<j++);

DelayMS(150);

}

for(i=0;i<7;i++)

{

P2=_cror_(P2,1); //P2的值向右循环移动 // p2=~(1>>j++);

}

}

}

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)

{

uchar i;

while(x--)

{

for(i=0;i<120;i++);

}

}

//主程序

void main()

{

uchar i;

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=P00; //东西向灯

sbit YELLOW_A=P01;

sbit GREEN_A=P02;

sbit RED_B=P03; //南北向灯

sbit YELLOW_B=P04;

sbit GREEN_B=P05;

uchar Flash_Count=0,Operation_Type=1; //闪烁次数，操作类型变量

//延时

void DelayMS(uint x)

{

uchar i;

while(x--) for(i=0;i<120;i++);

}

//交通灯切换

void Traffic_Light()

{

switch(Operation_Type)

{

case 1: //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;

case 2: //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;

case 3: //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;

case 4: //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 code DSY_CODE[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff}; //延时

void DelayMS(uint x)

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