求助！一个51利用RFID模块识别卡号的程序，实现卡号对了灯就灭额，不对灯就亮

ID:256652 · 发表于 2017-12-18 23:30

#include<reg52.h>
#include<string.h>

unsigned char num1[]={0x02,0x32,0x31,0x30,0x30,0x43,0x37,0x43,0x30,0x46,0x44,0x44,0x42,0x03};
unsigned char num2[]={0x02,0x32,0x31,0x30,0x30,0x43,0x36,0x42,0x34,0x42,0x44,0x45,0x45,0x03};
unsigned char num3[]={0x02,0x32,0x31,0x30,0x30,0x43,0x38,0x34,0x34,0x31,0x46,0x42,0x32,0x03};
unsigned char num4[]={0x02,0x32,0x31,0x30,0x30,0x43,0x38,0x42,0x33,0x35,0x41,0x30,0x30,0x03};
unsigned char num5[]={0x02,0x32,0x31,0x30,0x30,0x43,0x39,0x31,0x31,0x35,0x39,0x41,0x30,0x03};
unsigned char num6[]={0x02,0x32,0x31,0x30,0x30,0x35,0x42,0x45,0x43,0x34,0x38,0x44,0x45,0x03};
unsigned char num[14];//存放选定的卡号
unsigned int i,n=0;
unsigned char now[14];//存放读取的卡号

sbit LED=P1^2;

unsigned char m=100;
unsigned int j,k,temp,key=0;

void delaychar(unsigned int m)
{
  for(j=m;j>0;j--)
for(k=125;k>0;k--);
}

void jvzhen()
{
  while(1)
  {
P3=0xfe;
temp=P3;
temp=temp&0xf0;
if(temp!=0xf0)
{
   delaychar(10);
   if(temp!=0xf0)
   {
      temp=P3;
      switch(temp)
      {
      case 0xee:
            key=0;
            break;

      case 0xde:
            key=1;
            break;

      case 0xbe:
            key=2;
            break;

      case 0x7e:
            key=3;
            break;
      }
   }
}
P3=0xfd;
temp=P3;
temp=temp&0xf0;
if(temp!=0xf0)
{
   delaychar(10);
   if(temp!=0xf0)
   {
      temp=P3;
      switch(temp)
      {
      case 0xed:
            key=4;
            break;

      case 0xdd:
            key=5;
            break;

      case 0xbd:
            key=6;
            break;

      case 0x7d:
            key=7;
            break;
      }
   }
   }
P3=0xfb;
temp=P3;
temp=temp&0xf0;
if(temp!=0xf0)
{
   delaychar(10);
   if(temp!=0xf0)
   {
      temp=P3;
      switch(temp)
      {
      case 0xeb:
            key=8;
            break;

      case 0xdb:
            key=9;
            break;

      case 0xbb:
            key=10;
            break;

      case 0x7b:
            key=11;
            break;
      }
   }
   }
P3=0xf7;
temp=P3;
temp=temp&0xf0;
if(temp!=0xf0)
{
   delaychar(10);
   if(temp!=0xf0)
   {
      temp=P3;
      switch(temp)
      {
      case 0xe7:
            key=12;
            break;

      case 0xd7:
            key=13;
            break;

      case 0xb7:
            key=14;
            break;

      case 0x77:
            key=15;
            break;
      }
   }
}
switch(key)
{
   case 1:strcpy(num,num1);break;
   case 2:strcpy(num,num2);break;
   case 3:strcpy(num,num3);break;
   case 4:strcpy(num,num4);break;
   case 5:strcpy(num,num5);break;
   case 6:strcpy(num,num6);break;
   default:break;
}
if(!strcmp(now,num))
      LED=1;
else
      LED=0;
  }
}

void transfor() interrupt 4//串口通信中断
{
   if(RI)
   {
      RI=0;
      now[n]=SBUF;
      n++;
      if(n==14)
n=0;
}
}

void main(void)
{
TMOD=0x20;
TH1=0xfd;
TL1=0xfd;
SCON=0x50;
TR1=1;
ES=1;
EA=1;

jvzhen();

}

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