/// <summary>
/// 读取指定寄存器，阻塞的
/// </summary>
/// <typeparam name="TResult"></typeparam>
/// <param name="dev"></param>
/// <param name="positions"></param>
/// <returns></returns>
public TResult Read <TResult>(Expression <Func <TStorage, TResult> > positions)
{
ready();
var pro = positions.GetProperty();
var attr = pro.GetAttribute <StorageAttribute>();
if (attr != null)
{
var byteSize = typeof(TResult).GetByteSize();
var storageSize = Math.Ceiling((float)byteSize / 2);
byte[] bySend = _iProtocol.GetRead03Data(DeviceAddress, attr.Addr, storageSize.ToString(), CRCType, ref _tcpFlag);
_con.Com.Write(bySend);
byte[] byRead = _iProtocol.ReadReturnRead(_con.Com, byteSize);
if (_iProtocol.CheckReceiveData(byRead))
{
return(_iProtocol.ToSingleField <TResult>(byRead, ByteOrder, byteSize));
}
}
else
{
throw new ComException("结构体属性未指定StorageAttribute特性");
}
throw new ComException("未读取到数据");
}