数码管动态显示(中断 延时)

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R D I P 31191

8T 9

R D 17W

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161213141512345678P S

E N

A L E /P C P P P P P P P P T T I p

1

D

Y

4

-

6543210

5

V

80C51中断系统的结构

SCON

TCON

IE

IP

硬件查询

从0~100循环显示程序，

#include

#define uint unsigned int #define uchar unsigned char

sbit wela=P2^7;

uchar code table[]={

0x3f,0x06,0x5b,0x4f,

0x66,0x6d,0x7d,0x07,

0x7f,0x6f,0x77,0x7c,

0x39,0x5e,0x79,0x71};

void display(uchar bai,uchar shi,uchar ge); //数码管显示子程序void delay(uint z); //延时子程序

void init(); //初始化子程序

void main()

{

init();//初始化子程序

while(1)

{

if(aa==20)

{

aa=0; //千万别忘记计时器从0开始。

temp++;

if(temp==100)

{

temp=0;

}

bai=temp/100;

shi=temp%100/10;

ge=temp%10;

}

display(bai,shi,ge);

}

}

void delay(uint z)

uint x,y;

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

for(y=110;y>0;y--);

}

dula=1;

P0=table[bai];

dula=0;

P0=0xff; //消除其他数码管的余晖

wela=1;

P0=0xfe;

wela=0;

dula=1;

P0=table[shi];

dula=0;

P0=0xff;

wela=1;

P0=0xfd;

wela=0;

delay(1);

dula=1;

P0=table[ge];

dula=0;

P0=0xff;

wela=1;

P0=0xfb;

wela=0;

delay(1);

}

void init()

{

wela=0;

dula=0;

temp=0;

TMOD=0x01;

TH0=(65536-50000)/256;

TL0=(65536-50000)%256;

EA=1;

ET0=1;

}

void timer0() interrupt 1

{

TH0=(65536-50000)/256;

TL0=(65536-50000)%256;

aa++;

}

1.利用动态扫描方法在六位数码管上显示出稳定的654321.

#include

#define uint unsigned int

#define uchar unsigned char

uchar temp,aa,bai,shi,ge;

sbit dula=P2^6;

sbit wela=P2^7;

uchar code table[]={

0x3f,0x06,0x5b,0x4f,

0x66,0x6d,0x7d,0x07,

0x7f,0x6f,0x77,0x7c,

0x39,0x5e,0x79,0x71};

void delay(uint z); //延时子程序

//初始化子程序

void main()

{

while(1)

{

wela=1;

P0=0xfe;

wela=0;

P0=0x00;

dula=1;

P0=0x07;

dula=0;

delay(3);

wela=1;

P0=0xfd;

dula=1; P0=0x7d; dula=0; delay(3);

wela=1; P0=0xfb; wela=0; P0=0x00; dula=1; P0=0x6d; dula=0; delay(3);

wela=1; P0=0xf7; wela=0; P0=0x00; dula=1; P0=0x66; dula=0; delay(3);

wela=1; P0=0xef; wela=0; P0=0x00; dula=1; P0=0x4f; dula=0; delay(3);

/* wela=1; P0=0xfe; wela=0; P0=0x00; dula=1;

delay(20);

wela=1;

P0=0xfe;

wela=0;

P0=0x00;

dula=1;

P0=0x07;

dula=0;

delay(20); */

}

}

void delay(uint z)

{

uint x,y;

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

for(y=110;y>0;y--);

}

2.用动态扫描方法和定时器1在数码管的前三位显示出秒表，精确到1%秒，即后两位显示1%秒，一直循环下去。

#include

#define uint unsigned int Array #define uchar unsigned char

uint temp,aa,bai,shi,ge;

sbit dula=P2^6;

sbit wela=P2^7;

uchar code table[]={

0x3f,0x06,0x5b,0x4f,

0x66,0x6d,0x7d,0x07,

0x39,0x5e,0x79,0x71};

void display(uchar bai,uchar shi,uchar ge); //数码管显示子程序void delay(uint z); //延时子程序

void init(); //初始化子程序

void main()

{

init();//初始化子程序

while(1)

{

if(aa==1)

{

aa=0; //千万别忘记计时器从0开始。

temp++;

if(temp==999)

{

temp=0;

}

bai=temp/100;

shi=temp%100/10;

ge=temp%10;

}

display(bai,shi,ge);

}

}

void delay(uint z)

{

uint x,y;

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

for(y=110;y>0;y--);

}

void display(uchar bai,uchar shi,uchar ge)

{

dula=1;

P0=table[bai];

dula=0;

P0=0xff; //消除其他数码管的余晖

P0=0xfe;

wela=0;

delay(1);

dula=1;

P0=table[shi];

dula=0;

P0=0xff;

wela=1;

P0=0xfd;

wela=0;

delay(1);

dula=1;

P0=table[ge];

dula=0;

P0=0xff;

wela=1;

P0=0xfb;

wela=0;

delay(1);

}

void init()

{

wela=0;

dula=0;

temp=0;

TMOD=0x01;

TH0=(65536-50000)/256;

TL0=(65536-50000)%256;

EA=1;

ET0=1;

TR0=1;

}

void timer0() interrupt 1 {

TL0=(65536-10000)%256;

aa++; }

利用动态扫描和定时器1在数码管上显示出从765432开始以1/10秒的速度往下递减直至765398并保持显示此数，与此同时利用定时器0以500MS速度进行流水灯从上至下移动，当数码管上数减到停止时，实验板上流水灯也停止然后全部开始闪烁，3秒后（用T0定时）流水灯全部关闭、数码管上显示出“HELLO”。到此保持住。

#include

#include

#define uchar unsigned char

#define uint unsigned int

sbit dula=P2^6;

sbit wela=P2^7;

uchar code table[]={

0x3f,0x06,0x5b,0x4f,

0x66,0x6d,0x7d,0x07,

0x7f,0x6f,0x77,0x7c,

0x39,0x5e,0x79,0x71,

0x76,0x79,0x38,0x3f,0x00}; //流水灯数码管停止即定时器停止工作通过标志量进行另一种工作方式

uchar temp,t0,t1,bai,shi,ge,flag,flag1;

uint shu;

void init();

void display(uchar,uchar,uchar,uchar,uchar,uchar);

void delay(uint z)

{

uint t1,y;

for(t1=z;t1>0;t1--)

}

void main() //一个工程中只能有一个main函数

{

init(); //初始化设置

while(1)

{

if(flag1!=1) //通过一些标志量来改变工作方式

display(7,6,5,bai,shi,ge);

else

display(16,17,18,18,19,20);

}

}

void init()

{

shu=432;

temp=0xfe;

P1=temp;

TMOD=0x11; //定时器工作方式

TH0=(65536-50000)/256;

TL0=(65536-50000)%256;

TH1=(65536-50000)/256;

TL1=(65536-50000)%256; //给T0 T1定时器赋初值不过个人认为没什么用EA=1; //总中断

ET0=1;

ET1=1; //开TO T1

TR0=1;

TR1=1; //开始工作

}

void timer0() interrupt 1

{

TH0=(65536-50000)/256;

TL0=(65536-50000)%256; //每次进入中断需要定时器从初值开始工作

t0++; //控制时间

if(flag!=1)

{

{

t0=1;

temp=_crol_(temp,1);

P1=temp;

}

}

else

{

if(t0%4==0)

P1=~P1;

if(t0==60)

{

TR0=0; //关闭定时器

P1=0xff; //关闭所有LED

flag1=1;//闪烁完毕后通过标志量让数码管显示 LELLO }

}

}

void timer1() interrupt 3

{

TH1=(65536-50000)/256;

TL1=(65536-50000)%256;

t1++;

if(t1==2)

{

t1=0;

shu--;

bai=shu/100;

shi=shu%100/10;

ge=shu%10;

if(shu==398)

{

TR0=0; //关闭定时器

TH0=(65536-50000)/256;

TL0=(65536-50000)%256; //装入初值

TR0=1; //再打开定时器

flag=1; //标志量变化

t0=0; //清空t0 //这几个蓝色的不用写也行啊，初值本身可以不给，没用，要给也应该尽量大，t0也不用清0，检测的是flag，t0不用管了。

P1=0xff; //把灯全部关掉

TR1=0; //关闭定时器1

}

}

}

void display(uchar aa,uchar bb,uchar cc,uchar ba,uchar sh,uchar g)

{

dula=1;

P0=table[aa];

dula=0;

P0=0xff;

wela=1;

P0=0xfe;

wela=0;

delay(1);

dula=1;

P0=table[bb];

dula=0;

P0=0xff;

wela=1;

P0=0xfd;

wela=0;

delay(1);

dula=1;

P0=table[cc];

dula=0;

P0=0xff;

wela=1;

P0=0xfb;

wela=0;

delay(1);

dula=1;

dula=0;

P0=0xff;

wela=1;

P0=0xf7;

wela=0;

delay(1);

dula=1;

P0=table[sh];

dula=0;

P0=0xff;

wela=1;

P0=0xef;

wela=0;

delay(1);

dula=1;

P0=table[g];

dula=0;

P0=0xff;

wela=1;

P0=0xdf;

wela=0;

delay(1);

}

我写的

#include

#include

#define uint unsigned int

#define uchar unsigned char uint a,b,c,d,e,f,bai,shi,ge; sbit dula=P2^6;

sbit wela=P2^7;

uchar code table[]={

0x3f,0x06,0x5b,0x4f,

0x7f,0x6f,0x77,0x7c,

0x39,0x5e,0x79,0x71,

0x76,0x79,0x38,0x3f,0x00};

void display(uchar q,uchar w, uchar e,uchar bai,uchar shi,uchar ge); //数码管显示子程序

void delay(uint z); //延时子程序

void init(); //初始化子程序

void main()

{

init();//初始化子程序

while(1)

{

if(f==0)

display(7,6,5,bai,shi,ge);

else

display(16,17,18,18,19,20);

}

}

void delay(uint z)

{

uint x,y;

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

for(y=110;y>0;y--);

}

void display(uchar q,uchar w, uchar e,uchar bai,uchar shi,uchar ge)

{

dula=1;

P0=table[q];

dula=0;

P0=0xff; //消除其他数码管的余晖

wela=1;

P0=0xfe;

wela=0;

delay(1);

dula=1;

P0=0xff;

wela=1;

P0=0xfd;

wela=0;

delay(1);

dula=1;

P0=table[e]; dula=0;

P0=0xff;

wela=1;

P0=0xfb;

wela=0;

delay(1);

dula=1;

P0=table[bai]; dula=0;

P0=0xff;

wela=1;

P0=0xf7;

wela=0;

delay(1);

dula=1;

P0=table[shi]; dula=0;

P0=0xff;

wela=1;

P0=0xef;

wela=0;

delay(1);

dula=1;

P0=table[ge]; dula=0;

P0=0xff;

wela=0;

delay(1);

}

void init()

{

wela=0;

dula=0;

b=0xfe;

c=432;

e=1;

f=0;

TMOD=0x11;

TH0=(65536-50000)/256;

TL0=(65536-50000)%256;

TH1=(65536-50000)/256;

TL1=(65536-50000)%256;

EA=1;

ET0=1;

ET1=1;

TR0=1;

TR1=1;

}

void timer0() interrupt 1 {

TH0=(65536-50000)/256;

TL0=(65536-50000)%256;

a++;

if(e==1)

{if(a==1)

{

a=0;

P1=b;

b=_crol_(b,1);

} }

else

if(a%4==0)

P1=~P1;

if(a==60)

{

TR0=0; //关闭定时器

P1=0xff; //关闭所有LED

f=1;//闪烁完毕后通过标志量让数码管显示 HELLO }

}

}

void timer1() interrupt 3

{

TH0=(65536-50000)/256;

TL0=(65536-50000)%256;

d++;

if(d==1)

{

d=0;

bai=c/100;

shi=c%100/10;

ge=c%10;

c--;

if(c==397)

{

TR1=0;

P1=0xff;

e=0;

a=0;

}

}

}