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PcdWrite.c
资源名称：RC500.rar　[点击查看]
上传用户：hbtfgg
上传日期：2021-12-10
资源大小：16k
文件大小：2k
源码类别：

RFID编程

开发平台：

C/C++

PcdWrite.c：源码内容
  1. #include<reg52.h>
  2. #include<rc500.h>
  4. extern char PcdWrite(uchar addr,uchar *writedata)
  5. {
  6.     char status;
  7.     uchar i;
  8.     idata struct TranSciveBuffer{uchar MfCommand;
  9.                                  uchar MfLength;
  10.                                  uchar MfData[16];
  11.                                 }MfComData;
  12.     struct TranSciveBuffer *pi;
  14.     pi=&MfComData;
  15.     PcdSetTmo(4);
  16.     WriteRC(RegChannelRedundancy,0x0F); 
  17.     MfComData.MfCommand=PCD_TRANSCEIVE;
  18.     MfComData.MfLength=2;
  19.     MfComData.MfData[0]=PICC_WRITE;
  20.     MfComData.MfData[1]=addr;
  22.     status=PcdComTransceive(pi);
  23.     if(status!=MI_NOTAGERR)
  24.     {
  25.         if(MfComData.MfLength!=4)
  26.         {
  27.            status=MI_BITCOUNTERR;
  28.         }
  29.         else
  30.         {
  31.            MfComData.MfData[0]&=0x0f;
  32.            switch(MfComData.MfData[0])
  33.            {
  34.               case 0x00:
  35.                  status=MI_NOTAUTHERR;
  36.                  break;
  37.               case 0x0a:
  38.                  status=MI_OK;
  39.                  break;
  40.               default:
  41.                  status=MI_CODEERR;
  42.                  break;
  43.            }
  44.         }
  45.      }
  46.      if(status==MI_OK)
  47.      {
  48.         PcdSetTmo(3);
  49.         MfComData.MfCommand=PCD_TRANSCEIVE;
  50.         MfComData.MfLength=16;
  51.         for(i=0;i<16;i++)
  52.         {
  53.             MfComData.MfData[i]=*(writedata+i);
  54.         }
  55.         status=PcdComTransceive(pi);
  56.         if(status!=MI_NOTAGERR)
  57.         {
  58.             MfComData.MfData[0]&=0x0f;
  59.             switch(MfComData.MfData[0])
  60.             {
  61.                case 0x00:
  62.                   status=MI_WRITEERR;
  63.                   break;
  64.                case 0x0a:
  65.                   status=MI_OK;
  66.                   break;
  67.                default:
  68.                   status=MI_CODEERR;
  69.                   break;
  70.            }
  71.         }
  72.      }
  73.   return status;
  74. }