51單片機八路搶答器程序和仿真壓縮包

ID:250610 · 發表于 2017-11-18 19:28

仿真原理圖如下（proteus仿真工程文件可到本帖附件中下載）

單片機源程序如下:

#include <REGX51.H>
#define Keytimer_1 10
sbit K0=P3^0;
sbit K1=P1^0;sbit K2=P1^1;sbit K3=P1^2;sbit K4=P1^3;
sbit K5=P1^4;sbit K6=P1^5;sbit K7=P1^6;sbit K8=P1^7;
sbit A575=P2^0; sbit B575=P2^1; sbit C575=P2^2;
sbit BZ=P2^3;
unsigned int Keytimer=0,t=0,sec=60,OK=0,hh=0,sec1=0;
unsigned char DM[11]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x40}; //8個數碼管段碼表
unsigned char WE[4]={0x01,0x02,0x04,0x08}; //8個數碼管段碼表
void flang();
/*------------------------------------------------
公用延遲函數
------------------------------------------------*/
void delayus(unsigned int y)
{
while(y--);
}
//*****************定時器初始化**************************
void initialize(void)
{
TMOD =0x01;
TH0 = 0x3C;
TL0 = 0xB0; //50ms
ET0 = 1;
EA = 1;
TR0 = 1;
}
/*------------------------------------------------
8位數碼管指針顯示函數
------------------------------------------------*/
void shumaxianshi()
{
unsigned char i,ii=2,tempP[4];
if(OK==2)
{ii=4;flang();
tempP[0] = sec1/10%10;
tempP[1]=sec1%10;
}
else
{tempP[0] = sec/10%10;
tempP[1]=sec%10;}
tempP[2]=hh/10%10;
tempP[3] = hh %10;
for(i=0;i<ii;i++)
{
P0=DM[tempP[i]]; //指針賦值
A575=1;A575=0;
delayus(4);
P0=~WE[i];
B575=1;B575=0;
delayus(4); //最低限制
P0=0xff;
B575=1;B575=0;
}
}
unsigned char KES()
{
if(K1==1&&K2==1&&K3==1&&K4==1&&K5==1&&K6==1&&K7==1&&K8==1&&K0==1) //沒有按的時候返回加快 51 跑的速度
return 0;
if(K0==0 && !Keytimer)
{
Keytimer=Keytimer_1;
return 9;
}
if(K1==0 && !Keytimer)
{
Keytimer=Keytimer_1;
return 1;
}
if(K2==0 && !Keytimer)
{
Keytimer=Keytimer_1;
return 2;
}
if(K3==0 && !Keytimer)
{
Keytimer=Keytimer_1;
return 3;
}
if(K4==0 && !Keytimer)
{
Keytimer=Keytimer_1;
return 4;
}
if(K5==0 && !Keytimer)
{
Keytimer=Keytimer_1;
return 5;
}
if(K6==0 && !Keytimer)
{
Keytimer=Keytimer_1;
return 6;
}
if(K7==0 && !Keytimer)
{
Keytimer=Keytimer_1;
return 7;
}
if(K8==0 && !Keytimer)
{
Keytimer=Keytimer_1;
return 8;
}
return 0;
}
void main()
{
unsigned char yh;
BZ=1;
A575=B575=C575=0;
P0=0x00;
C575=1;C575=0;
initialize();
while(1)
{
yh=KES();
if(yh==9)
{
OK++;
if(OK==3){OK=0;sec=60,sec1=t=0;P0=0x00;
C575=1;C575=0;BZ=1;
}
}
else if(OK==1 && yh>=1)
{
OK=2;
hh=yh;
if(yh==1)
{
P0=0x01;
C575=1;C575=0;
}
else if(yh==2)
{
P0=0x02;
C575=1;C575=0;
}
else if(yh==3)
{
P0=0x04;
C575=1;C575=0;
}
else if(yh==4)
{
P0=0x08;
C575=1;C575=0;
}
else if(yh==5)
{
P0=0x10;
C575=1;C575=0;
}
else if(yh==6)
{
P0=0x20;
C575=1;C575=0;
}
else if(yh==7)
{
P0=0x40;
C575=1;C575=0;
}
else if(yh==8)
{
P0=0x80;
C575=1;C575=0;
}
}
shumaxianshi();
}
}
void Timer0(void) interrupt 1
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…………限于本文篇幅余下代碼請從51黑下載附件…………