コード例 #1
0
 public string RxProc(char rx)
 {
     RxList[RxCount++] = rx;
     if (RxCount >= RxList.Length)
     {
         RxCount = 0;
         return(string.Empty);
     }
     if (RxCount == 1)
     {
         if (rx != '$')
         {
             RxCount = 0;
         }
     }
     else if (RxCount == ID.Length)
     {
         RxList[6] = '\0';
         string str = new string(RxList, 0, ID.Length);
         if (str != ID)
         {
             RxCount = 0;
         }
     }
     else if (rx == '*')
     {
         if (!bVerify)
         {
             int len = RxCount;
             RxCount = 0;
             return(new string(RxList, 0, len));
         }
     }
     else if (rx == 0x0a)
     {
         int len = RxCount;
         RxCount = 0;
         if (RxList[len - 2] == 0x0d)
         {
             if (bVerify)//校验
             {
                 byte cs = 0;
                 for (int i = 1; i < len - 5; i++)
                 {
                     cs ^= (byte)RxList[i];
                 }
                 byte cs1 = BytesOP.ASCII2Byte((byte)RxList[len - 4], (byte)RxList[len - 3]);
                 if (cs == cs1)
                 {
                     return(new string(RxList, 0, len));
                 }
             }
         }
     }
     return(string.Empty);
 }