求一个最简单的串口编程例子

Question

求一个最简单的串口编程例子

Answer 1

  /// <summary>
        ///发送一个数据
        /// </summary>
        /// <param name="COM">"COM1"</param>
        /// <param name="BaudRate">9600</param>
        /// <param name="Data">"123"tobyte[]</param>
        /// <param name="Encoding">ASCII</param>
        public static byte[] SerialPort(string p_COM, int p_BaudRate, byte[] p_Data, Encoding p_Encoding)
        {
            SerialPort _SendPort = new SerialPort();
            _SendPort.PortName = p_COM;
            _SendPort.BaudRate = p_BaudRate;
            _SendPort.DataBits = 8;
            _SendPort.Parity = Parity.None;
            _SendPort.StopBits = StopBits.One;
            _SendPort.DtrEnable = true;
            _SendPort.DtrEnable = true;
            _SendPort.Encoding = p_Encoding;            if (_SendPort.IsOpen)
            {
                _SendPort.Close();
                _SendPort.Open();
            }
            else
            {
                _SendPort.Open();
                _SendPort.Write(p_Data, 0, p_Data.Length);
                byte[] refData = new byte[_SendPort.BytesToRead];
                for (int i = 0; i != p_Data.Length; i++)
                {
                    refData[i] = Convert.ToByte(_SendPort.ReadByte());
                }
                return refData;
            }            return null;        }

Answer 2

到MSDN里面去查下串口通信，有相关实例与代码.