紅外遙控?cái)?shù)碼管顯示鍵碼用戶碼求問

ID:194864 · 發(fā)表于 2017-4-29 20:43

//數(shù)碼管永遠(yuǎn)都是0，不管按哪個(gè)遙控鍵都不變。能幫忙看看是哪里出問題了嗎？

#include <reg52.h>
#include <intrins.h>
#define uchar unsigned char
#define uint unsigned int
sbit IRIN=P3^3;
uchar code table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};
uchar code table2[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};
uchar disp[8];
uchar ircode[4]; //數(shù)碼管顯示緩沖
sbit duan=P2^6;
sbit wei=P2^7;
void init_int0()
{
IE = 0x84;                //允許總中斷中斷,使能 INT1 外部中斷
TCON = 0x10;             //觸發(fā)方式為脈沖負(fù)邊沿觸發(fā)
IRIN=1;                   //I/O口初始化
}
void data_pros()
{
disp[0]=ircode[0]>>4;
disp[1]=ircode[0]&0x0f;
disp[2]=ircode[2]>>4;
disp[3]=ircode[2]&0x0f;
}
void delayms(uint x)
{
uint i,j;
for(i=x;i>0;i--)
   for(j=110;j>0;j--);
}
void delay(unsigned char x) //x*0.14MS
{
unsigned char i;
  while(x--)
{
  for (i = 0; i<13; i++) {}
}
}
void display()
{
uchar i;
for(i=0;i<4;i++)
{
   duan=1;
   P0=table[disp[i]];
   duan=0;
   P0=0xff;
   wei=1;
   P0=table2[i];
   wei=0;
   delayms(5);

}
}
void IR_IN() interrupt 2 using 0
{
  unsigned char j,k,N=0;
   EX1 = 0;
   delay(15);
   if (IRIN==1)
   { EX1 =1;
   return;
   }
                        //確認(rèn)IR信號出現(xiàn)
  while (!IRIN)          //等IR變?yōu)楦唠娖剑^9ms的前導(dǎo)低電平信號。
{delay(1);}

for (j=0;j<4;j++)       //收集四組數(shù)據(jù)
{
  for (k=0;k<8;k++)       //每組數(shù)據(jù)有8位
  {
while (IRIN)          //等 IR 變?yōu)榈碗娖剑^4.5ms的前導(dǎo)高電平信號。
   {delay(1);}
while (!IRIN)       //等 IR 變?yōu)楦唠娖?br />    {delay(1);}
   while (IRIN)          //計(jì)算IR高電平時(shí)長
   {
delay(1);
N++;
if (N>=30)
   { EX1=1;
   return;}                //0.14ms計(jì)數(shù)過長自動離開。
   }                      //高電平計(jì)數(shù)完畢
   ircode[j]=ircode[j] >> 1;                //數(shù)據(jù)最高位補(bǔ)“0”
   if (N>=8) {ircode[j] = ircode[j] | 0x80;}  //數(shù)據(jù)最高位補(bǔ)“1”
   N=0;
  }//end for k
}//end for j
if (ircode[2]!=~ircode[3])
{ EX1=1;
   return; }
   EX1 = 1;
}
void main()
{
init_int0();
duan=0;
wei=0;
while(1)
{
      data_pros();
   display();
}
}