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標(biāo)題: 倒計(jì)時(shí)5秒六路搶答器改成倒計(jì)時(shí)10秒或者9秒的八路搶答器 [打印本頁(yè)]

作者: wyq12 時(shí)間: 2021-1-4 14:48
標(biāo)題: 倒計(jì)時(shí)5秒六路搶答器改成倒計(jì)時(shí)10秒或者9秒的八路搶答器
倒計(jì)時(shí)5秒的六路搶答器
#include<reg51.h>

#define uchar unsigned char

sbit dula=P2^6;
sbit wela=P2^7;
sbit beep=P2^3;
uchar key,j,k,temp,daojishi=5,wei;
bit begin,end,clear,fangui;
uchar a0,b0=16;c0=16;d0=16;e0=16;f0=5;
unsigned int pp;
unsigned char code table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,
                     0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71,0x00};

void delay(unsigned char i)
{
  for(j=i;j>0;j--)
for(k=125;k>0;k--);
}
void display(uchar a,uchar b,uchar c,uchar d,uchar e,uchar f)
{
dula=0;
P0=table[a];
dula=1;
dula=0;

wela=0;
P0=0xfe;
wela=1;
wela=0;
delay(5);

P0=table[b];
dula=1;
dula=0;

P0=0xfd;
wela=1;
wela=0;
delay(5);

P0=table[c];
dula=1;
dula=0;

P0=0xfb;
wela=1;
wela=0;
delay(5);

P0=table[d];
dula=1;
dula=0;

P0=0xf7;
wela=1;
wela=0;
delay(5);

P0=table[e];
dula=1;
dula=0;

P0=0xef;
wela=1;
wela=0;
delay(5);

P0=table[f];
dula=1;
dula=0;

P0=0xdf;
wela=1;
wela=0;
delay(5);
}

void keyscan()
{
P3=0xfe;
temp=P3;
temp=temp&0xf0;
if(temp!=0xf0)
{
   delay(10);
   if(temp!=0xf0)
   {
      temp=P3;
      switch(temp)
      {
      case 0xee:
            key=1;
   wei++;
            break;

      case 0xde:
            key=2;
   wei++;
            break;

      case 0xbe:
            key=3;
   wei++;
            break;

      case 0x7e:
            key=4;
   wei++;
            break;
      }
      while(temp!=0xf0)
      {
         temp=P3;
         temp=temp&0xf0;
         beep=0;
      }
      beep=1;
   }
}
P3=0xfd;
temp=P3;
temp=temp&0xf0;
if(temp!=0xf0)
{
   delay(10);
   if(temp!=0xf0)
   {
      temp=P3;
      switch(temp)
      {
      case 0xed:
            key=5;
   wei++;
            break;

      case 0xdd:
            key=6;
   wei++;
            break;

      case 0xbd:
            clear=1;
   //key=7;
            break;

      case 0x7d:
         begin=1;
            //key=8;
            break;
      }
      while(temp!=0xf0)
      {
         temp=P3;
         temp=temp&0xf0;
         beep=0;
      }
      beep=1;
   }
   }
}

void main()
{
TMOD=0x01;

TH0=(65536-46080)/256;// óéóú¾§ÕñÎa11.0592,1êËù¼Ç′Îêyó|Îa46080￡¬¼Æê±Æ÷Ã¿¸ô50000Î￠Ãë·￠Æeò»′ÎÖD¶Ï¡￡
TL0=(65536-46080)%256;//46080μÄà′àú￡¬Îa50000*11.0592/12
ET0=1;
EA=1;
while(1)
{
keyscan();
if(begin)
{
if(!end)
{
TR0=1;
//if(!daojishi) daojishi=5;
//begin=0;
//daojishi=5;
if(pp==20)
{
pp=0;
daojishi--;

}

f0=daojishi;
if(key!=0)
a0=key;
// a1=a0;

//if(a0!=0) end=1;
if(!daojishi|a0)
{
end=1;
TR0=0;
//daojishi=5;
// begin=0;
pp=0;
}
}

}
else
{
if(key!=0)
{
switch(wei)
{
case 1: a0=key;break;
case 2: b0=key;break;
case 3: c0=key;break;
case 4: d0=key;break;
case 5: e0=key;break;
}
//if(!fangui)
fangui=1;
beep=0;
}
}
if(clear)
{
a0=0;key=0;begin=0;end=0;fangui=0;beep=1;daojishi=5;f0=5;clear=0;
b0=16;c0=16;d0=16;e0=16;wei=0; P1=0xff;
}
display(a0,b0,c0,d0,e0,f0);
if(fangui)
{
beep=0;
P1=0x00;;
}

}
}

void time0() interrupt 1
{ TH0=(65536-46080)/256;
TL0=(65536-46080)%256;
pp++;
}

作者: 51hei團(tuán)團(tuán) 時(shí)間: 2021-1-4 15:11
謝謝分享沒(méi)有原理圖?

作者: wyq12 時(shí)間: 2021-1-4 15:20
能幫忙改一下或者幫忙注釋一下這段程序嗎？

歡迎光臨 (http://www.zg4o1577.cn/bbs/)

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