C＃SerialPort类的用法 [英] C# SerialPort Class Usage

问题描述

这个问题是灵感都在这里找到了问题的答案： <一href="http://stackoverflow.com/questions/17535998/passing-a-command-to-a-comm-port-using-cs-serialport-class">Passing一个命令，一个通信端口使用C＃的SerialPort类

This question is inspired by both the question and answer found here: Passing a Command to a Comm Port Using C#'s SerialPort Class

这个问题本身回答了几个问题，我有，但对我提出的一些其他问题。在示范的答案如下：

The question itself answered a few problems I had but raised a few other questions for me. The answer in the demonstration is as follows:

var serialPort = new SerialPort("COM1", 9600);
serialPort.Write("UUT_SEND \"REMS\\n\" \n");

有关基本的串行端口的使用。另外，请注意这一点：要得到任何答复，你将不得不挂钩DataReceived事件检索的

For basic serial port usage. Also make note of this: To get any responses you will have to hook the DataReceived event.

我的问题如下。我一定要使用 DataReceived事件检索或者我可以使用 serialPort.ReadLine ？什么是 serialPort.ReadLine 的确切功能？另外，我需要使用 serialPort.Open（）和 serialPort.Close（）在我的应用程序？

My questions are as follows. Do I have to use the DataReceived event or can I use serialPort.ReadLine? What's the exact function of serialPort.ReadLine? Also do I need to use serialPort.Open() and serialPort.Close() in my application?

推荐答案

您可以找到物业在的 MSDN文档，这里是一个小例子：

You can find a nice description of the properties and usage in the MSDN documentation and here is a small example:

void OpenConnection()
{
    //Create new serialport
    _serialPort = new SerialPort("COM8");

    //Make sure we are notified if data is send back to use
    _serialPort.DataReceived += _serialPort_DataReceived;

    //Open the port
    _serialPort.Open();

    //Write to the port
    _serialPort.Write("UUT_SEND \"REMS\\n\" \n");
}

void _serialPort_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
    //Read all existing bytes
    var received = _serialPort.ReadExisting();
}

void CloseConnectionOrExitAppliction()
{
    //Close the port when we are done
    _serialPort.Close();
}

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