private void btnIdentify_Click(object sender, EventArgs e)
{
btnIdentify.Enabled = false;
utxtCard.Value = "";
Application.DoEvents();
PassiveCommand.Identify6B(SystemPub.ADRcp);
//if (!SystemPub.ADRcp.SendBytePkt(PassiveRcp.Identify6B(SystemPub.ADRcp.Address))) { }
btnIdentify.Enabled = true;
}