/// <summary>
/// 读取标签
/// 读取出范围内所有标签
/// </summary>
/// <returns></returns>
public static List <string> ReadEPC()
{
if (IsOper == false)
{
throw new Exception("请先打开串口");
}
List <string> epc_lis = new List <string>();
int CardNum = 0;
int Totallen = 0;
byte[] EPC = new byte[5000];
int fCmdRet = StaticClassReaderB.Inventory_G2(ref ComAdr, 0, 0, 0, EPC, ref Totallen, ref CardNum, port);
if ((fCmdRet == 1) | (fCmdRet == 2) | (fCmdRet == 3) | (fCmdRet == 4) | (fCmdRet == 0xFB))//代表已查找结束，
{
byte[] daw = new byte[Totallen];
Array.Copy(EPC, daw, Totallen);
string temps = RFIDResources.ByteArrayToHexString(daw);
int m = 0;
for (int CardIndex = 0; CardIndex < CardNum; CardIndex++)
{
byte EPClen = daw[m];
string sEPC = temps.Substring(m * 2 + 2, EPClen * 2);
epc_lis.Add(sEPC);
m = m + EPClen + 1;
if (sEPC.Length != EPClen * 2)
{
break;
}
}
}
return(epc_lis);
}
/// <summary>
/// 按块读数据
/// 0-19 每块4个字节
/// </summary>
/// <param name="epc"></param>
/// <param name="pwd"></param>
/// <param name="block_num"></param>
/// <returns></returns>
public static string ReadData(string epc, string pwd, int block_num)
{
if (!IsOper)
{
throw new Exception("请先打开串口");
}
if (string.IsNullOrEmpty(epc) || string.IsNullOrEmpty(pwd))
{
throw new Exception("请补全信息");
}
if (pwd.Length != 8)
{
throw new Exception("密码长度要为8位");
}
if (block_num < 0 || block_num > 19)
{
throw new Exception("读取地址必须在0-19之间");
}
byte ENum = Convert.ToByte(epc.Length / 4);
byte EPCLen = Convert.ToByte(epc.Length / 2);
byte[] bEPC = new byte[ENum];
bEPC = RFIDResources.HexStringToByteArray(epc);
bPassWord = RFIDResources.HexStringToByteArray(pwd);
byte BNum = Convert.ToByte(block_num.ToString(), 16);
byte[] bData = new byte[320];
int flag = StaticClassReaderB.ReadCard_G2(ref ComAdr, bEPC, RFIDResources.MemUser, BNum
, 1, bPassWord, 0, 0, 0, bData, EPCLen, ref errcode, handle);
if (flag != 0)
{
if (errcode > -1)
{
throw new Exception(RFIDResources.GetErrorCodeDesc(errcode));
}
else
{
throw new Exception(RFIDResources.GetReturnCodeDesc(flag));
}
}
byte[] daw = new byte[1 * 2];
Array.Copy(bData, daw, 1 * 2);
string str = RFIDResources.ByteArrayToHexString(daw);
return(str);
}