protected SelectInfo HandleSelectFrame(byte[] frame)
{
SelectInfo info = new SelectInfo(frame);
ReturnMessage returnCode = CheckFrame(info);
if (returnCode != ReturnMessage.Success)
{
info.ReturnValue = returnCode;
return(info);
}
info.Size = frame[3];
info.ReturnValue = ReturnMessage.Success;
return(info);
}
/// <summary>
/// 选择指定UID的电子标签，返回该标签的容量标志。
/// </summary>
/// <param name="UID">指定的UID</param>
/// <returns></returns>
public async Task <SelectInfo> SelectAsync(byte[] UID)
{
byte[] frame = CreateSelectFrame(UID);
CommunicationReturnInfo cri = await com.SendAsync(frame);
if (cri.ReturnValue != ReturnMessage.Success)
{
SelectInfo si = new SelectInfo();
si.SendByte = frame;
si.ReturnValue = cri.ReturnValue;
si.ExceptionMessage = cri.ExceptionMessage;
return(si);
}
SelectInfo info = HandleSelectFrame(cri.RecvByte);
info.SendByte = frame;
return(info);
}
