6个单片机实验设计报告

实验一：流水灯

程序：

#include

sbit d0=P0^0;

sbit d1=P0^1;

sbit d2=P0^2;

sbit d3=P0^3;

sbit d4=P0^4;

sbit d5=P0^5;

sbit d6=P0^6;

sbit d7=P0^7;

void delay(unsigned int x);

void main()

{

while(1)

{

d0=1;

delay(250);

d0=0;

d1=1;

delay(250);

d1=0;

d2=1;

delay(250);

d2=0;

d3=0;

delay(250);

d3=1;

d4=0;

delay(250);

d4=1;

d5=0;

delay(250);

d5=1;

d6=0;

delay(250);

d6=1;

d7=0;

delay(250);

d7=1;

}

}

void delay(unsigned int x)

{

unsigned int y;

for(;x>0;x--)

for(y=500;y>0;y--); }

实验二：单个数码管显示0~9循环

#include

unsigned int dulatable[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};

void delay(unsigned int z);

void main()

{

unsigned int x;

while(1)

{

for(x=0;x<10;x++)

{

P1=dulatable[x];

delay(250);

}

}

}

void delay(unsigned int z)

{

unsigned int y;

for(;z>0;z--)

for(y=1000;y>0;y--);

}

实验三：外部中断，数字循环终止，led闪烁报警持续20秒

#include

unsigned int dulatable[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};//段码表sbit d=P0^0;

void delay(unsigned int z);

void main()

{

unsigned int x;

EA=1;

EX0=1;

d=0;

while(1)

{

for(x=0;x<10;x++)

{

P1=dulatable[x];

delay(250);

}

}

}

void exter0() interrupt 0

{

unsigned int p;

for(p=20;p>=0;p--)

{

d=1;

delay(150);

d=0;

delay(150);

}

}

void delay(unsigned int z)

{

unsigned int y;

for(;z>0;z--)

for(y=1000;y>0;y--);

}

实验四：ADC0804测电压并用四连体共阳数码管显示

#include

sbit int1=P3^3;//定义管脚功能

sbit cs=P3^2;//使能端

sbit wr=P3^6;//写端口

sbit rd=P3^7;//读端口

unsigned int s[]={0x10,0x20,0x40,0x80};//位码表

unsigned char code table[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};//段码表

void delay(unsigned int t);//延时函数

double convert(unsigned char sixteen);

unsigned char dushu(void);//从AD读数

void show(double qqq);//数码管显示

void main()

{

unsigned char output; //从AD读出的8位2二进制

double dianya;

while(1)

{

output=dushu();

dianya=convert(output);

show(dianya);

}

}

unsigned char dushu( void )

{

unsigned char q,i;

rd=1;

wr=1;

int1=1;//读ADC0804前准备

P1=0xff;//P1全部置一准备

cs=0;

wr=0;

wr=1;//启动ADC0804开始测电压

while(int1==1);//等待A/D转换完毕产生INT1（低电平有效）信号

rd=0;//开始读转换后数据

i=i; i=i;

q=P1;//读出的数据赋与output

rd=1;

cs=1;//读数完毕

return(q);

}

double convert(unsigned char sixteen)

{

unsigned int a;

double qq;

a=(unsigned int)sixteen;//强制装换char为unsigned int

qq=(double)a;

qq=qq/256*5;

return(qq);

}

void show(double qqq)

{

unsigned int p,a,b,c,t,d,i,*k[]={&d,&c,&b,&a};

p=(unsigned int)(qqq*1000);

a=p/1000;

p=p%1000;

b=p/100;

p=p%100;

c=p/10;

p=p%10;

d=p;

for(t=1000;t>0;t--)//数码管动态扫描

{

for(i=0;i<4;i++)

{

P2=s[i];//利用P2.4~P2.7端口作为位选动态扫描

if(i==3)P0=table[*k[i]]&0x7f;//通过&运算点亮第一个数码管小数点

else P0=table[*k[i]];

delay(200);

}

}

}

void delay(unsigned int t)

{

unsigned int qwe;

for(qwe=t;qwe>0;qwe--); }

实验五：定时器中断

利用定时器0工作方式1，实现发光管以1s亮灭闪烁

#include

#define uchar unsigned char

#define uint unsigned int

sbit led1=P1^0;

uchar num;

void main()

{

TOMD=0X01; //设置定时器0工作方式为1（M1M0 为01）

TH0=(65536-45872)/256; //装初值11.0952M晶振定时50ms数为45872 TL0=(65536-45872)%256;

EA=1; //开总中断

ET0=1; //开定时器0中断

TR0=1; //启动定时器0

while(1) //程序等待中断发生

}

void T0_time()interrupt 1

{

TH0=(65536-45872)/256; //重装初值

TL0=(65536-45872)%256;

num++;

if(num==20)

{

num=90;

led1=~led1; //发光管状态取反

}

}

实验六：点阵扫描1~3

#include

unsigned int welatable[]={0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80}; unsigned int dulatable[][8]={0xf7,0xf7,0xf7,0xf7,0xf7,0xf7,0xf7,0xf7,

0xc3,0xfb,0xfb,0xc3,0xdf,0xdf,0xc3,0xff,

0xc3,0xfb,0xfb,0xc3,0xfb,0xfb,0xc3,0xff,}; void delay(unsigned int x);

void main()

{

unsigned int a,b,t;

while(1)

{

for(a=0;a<3;a++)

{

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

{

for(b=0;b<8;b++)

{

P1=dulatable[a][b];

P0=welatable[b];

delay(200);

}

}

}

}

}

void delay(unsigned int x)

{

unsigned int y;

for(y=x;y>0;y--);

}