.NET 串口通信中断接收，包含0X1A（作为EOF）

.NET串口通信中将`0X1A`当做EOF处理，.NET接收到EOF会触发一次接收中断，此时事件形参`SerialDataReceivedEventArgs`值为枚举 `Eof`,其他为`Chars`。

参考： stackoverflow 、MSDN

## 测试

.NET编程，中断方式接收，发送一串数据后等待回应，打印进中断次数；另外一端用串口助手来实现。通信用虚拟串口。

 [TestClass]
    public class EofByteSerialTest
    {
        private int _count = 0;
        private byte[] _receivedDataPacket;
        SerialPort _serialPort = new SerialPort()
        {
            PortName = "COM5",
            BaudRate = 115200,
            DataBits = 8,
            StopBits = StopBits.One,
            Parity = Parity.None
        };
        [TestMethod]
        public void TestMethod1()
        {
            _serialPort.Open();
            byte[] sendedData = { 0x01, 0x02, 0x03, 0x1a, 0x2a, 0x1a };
            _serialPort.DataReceived += ComReceive;
            _serialPort.Write(sendedData, 0, sendedData.Length);
            Thread.Sleep(10000);
            //foreach (byte b in _receivedDataPacket)
            //{
            //    Console.WriteLine(b);
            //}
            Console.WriteLine(_count);
        }
        private void ComReceive(object sender, SerialDataReceivedEventArgs e)
        {
            //if (e.EventType == SerialData.Eof)
            //{
            //    //特殊处理
            //}
            _count++;
            _receivedDataPacket = new byte[_serialPort.BytesToRead];
            _serialPort.Read(_receivedDataPacket, 0, _receivedDataPacket.Length);
            // 协议解析...
        }
    }

 串口助手数据：

 

测试结果：