static public String TagAccPktGetDataStr(ref RFID_PACKETMSG_18K6C_TAG_ACCESS_T TAPkt)
{
int DataSize = TagAccPktGetDataFieldSize(TAPkt.cmn.pkt_len,
Rfid.st_RfidSpPkt_TagAccessData.cmn.flags);
String DataStr;
DataStr = DataFieldToStr(TAPkt.tag_data, DataSize);
return(DataStr);
}
static public AccErrorTypes TagAccPktGetErrType(ref RFID_PACKETMSG_18K6C_TAG_ACCESS_T TAPkt)
{
AccErrorTypes TAErr = AccErrorTypes.None;
if ((TAPkt.cmn.flags & 0x01) != 0)
{
// CRC Error
if ((TAPkt.cmn.flags & 0x08) != 0)
{
TAErr = AccErrorTypes.CRC;
}
// BackScatter Error
else if ((TAPkt.cmn.flags & 0x02) != 0)
{
switch (TAPkt.error_code)
{
case 0x03: /* Memory Location error */
TAErr = AccErrorTypes.InvalidAddr; break;
case 0x04: /* Memory location not writable/locked */
TAErr = AccErrorTypes.Unauthorized; break;
case 0x00: /* catch-all */
case 0x0B: /* low power */
case 0x0F: /* unrecognized error code */
default:
TAErr = AccErrorTypes.Others; break;
}
}
// ACK Timeout
else if ((TAPkt.cmn.flags & 0x04) != 0)
{
TAErr = AccErrorTypes.AckTimeout;
}
// Error code in tag_data field
else
{
int DataSize = TagAccPktGetDataFieldSize(TAPkt.cmn.pkt_len, TAPkt.cmn.flags);
String DataStr;
DataStr = EPCTag.DataFieldToStr(TAPkt.tag_data, DataSize);
Byte ErrCode = Byte.Parse(DataStr.Substring(0, 2),
System.Globalization.NumberStyles.HexNumber);
if (ErrCode >= 0x01 && ErrCode <= 0x18)
{
TAErr = (AccErrorTypes)((int)AccErrorTypes.VerifyError + (ErrCode - 0x01));
}
else
{
throw new ApplicationException("Unexpected TagAccess error code:" + ErrCode);
}
}
}
return(TAErr);
}
