C# serialport
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using System;
using System.Collections.Generic;using System.Linq;using System.Text;using System.Windows;using System.Windows.Controls;using System.Windows.Data;using System.Windows.Documents;using System.Windows.Input;using System.Windows.Media;using System.Windows.Media.Imaging;using System.Windows.Navigation;using System.Windows.Shapes;using System.IO.Ports; namespace CsharpComm { /// <summary> /// Window1.xaml 的交互逻辑 /// </summary> public partial class Window1 : Window { public Window1() { InitializeComponent(); } //定义 SerialPort对象 SerialPort port1; //初始化SerialPort对象方法.PortName为COM口名称,例如"COM1","COM2"等,注意是string类型 public void InitCOM(string PortName) { port1 = new SerialPort(PortName); port1.BaudRate = 9600;//波特率 port1.Parity = Parity.None;//无奇偶校验位 port1.StopBits = StopBits.Two;//两个停止位 port1.Handshake = Handshake.RequestToSend;//控制协议 port1.ReceivedBytesThreshold = 4;//设置 DataReceived 事件发生前内部输入缓冲区中的字节数 port1.DataReceived += new SerialDataReceivedEventHandler(port1_DataReceived);//DataReceived事件委托 } //DataReceived事件委托方法 private void port1_DataReceived(object sender, SerialDataReceivedEventArgs e) { try { StringBuilder currentline = new StringBuilder(); //循环接收数据 while (port1.BytesToRead > 0) { char ch = (char)port1.ReadByte(); currentline.Append(ch); } //在这里对接收到的数据进行处理 // currentline = new StringBuilder(); } catch(Exception ex) { Console.WriteLine(ex.Message.ToString()); } } //打开串口的方法 public void OpenPort() { try { port1.Open(); } catch { } if (port1.IsOpen) { Console.WriteLine("the port is opened!"); } else { Console.WriteLine("failure to open the port!"); } } //关闭串口的方法 public void ClosePort() { port1.Close(); if (!port1.IsOpen) { Console.WriteLine("the port is already closed!"); } } //向串口发送数据 public void SendCommand(string CommandString) { byte[] WriteBuffer = Encoding.ASCII.GetBytes(CommandString); port1.Write(WriteBuffer, 0, WriteBuffer.Length); } //调用实例 private void btnOpen_Click(object sender, RoutedEventArgs e) { //我现在用的COM1端口,按需要可改成COM2,COM3 InitCOM("COM1"); OpenPort(); } } }
