昨天做了一个C#写的串口测试程序 现在把代码贴上来
Comm.cs
using System; using System.Collections.Generic; using System.IO.Ports; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows; namespace ComTest { class Comm { //事件委托 public delegate void ComRecevied(byte[] byteBuffer); //public ComRecevied comRecevied; public event ComRecevied EventComReceived; private SerialPort serialPort; //配置 串口号 波特率 校验位 数据位 停止位 public void InitCOM(string _PortName,string _baudRate,string _checkBit,string _dataBits,string _stopBit) { if (serialPort != null && serialPort.IsOpen) { serialPort.Close(); } serialPort = new SerialPort(_PortName,int.Parse(_baudRate),(Parity)Enum.Parse(typeof(Parity),_checkBit),int.Parse(_dataBits), (StopBits)Enum.Parse(typeof(StopBits), _stopBit)); serialPort.DataReceived += SerialPort_DataReceived; serialPort.ReceivedBytesThreshold = 1;//设置事件发生前内部输入缓冲区的字节数为1 serialPort.RtsEnable = true; } //数据接收 private void SerialPort_DataReceived(object sender, SerialDataReceivedEventArgs e) { //byte[] readBuffer = new byte[serialPort.ReadBufferSize];//获取输入缓冲区的大小 byte[] readBuffer = new byte[serialPort.BytesToRead];//获取接收缓冲区中数据的字节数 //Console.WriteLine(serialPort.BytesToRead); // 要读取的字节数组 起始位置 总个数 serialPort.Read(readBuffer, 0, readBuffer.Length); /*//----------Y----------- string str = Encoding.Default.GetString(readBuffer); string str1 = str.Substring(str.IndexOf("X")+1,3); string str2 = str.Substring(str.IndexOf("Y") + 1, 3);*/ /*Console.WriteLine(str); Console.WriteLine(str1); Console.WriteLine(str2);*/ //MessageBox.Show(str); EventComReceived(readBuffer); } //打开串口 public bool OpenPort() { //写成异常处理的形式以免打不开串口导致程序崩溃 try { serialPort.Open(); } catch { } if (serialPort.IsOpen) { return true; } else { MessageBox.Show("串口打开失败"); return false; } } //向串口发送数据 public void SendCommand(string _str1,string _str2) { int a=int.Parse(_str1); int b = int.Parse(_str2); string str1 = ""; if (a <= 9) { str1 = "00" + a; } else if (a <= 99&&a>9) { str1 = "0" + a; } else { str1 = a+""; } string str2 = ""; if (b <= 9) { str2 = "00" + b; } else if (b <= 99 && b > 9) { str2 = "0" + b; } else { str2 = b + ""; } string CommandString = "X"+str1+"Y"+str2; byte[] WriteBuffer = Encoding.ASCII.GetBytes(CommandString); serialPort.Write(WriteBuffer, 0, WriteBuffer.Length); //Console.WriteLine(WriteBuffer.Length); } } }
MainWindow.xaml.cs
using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Text.RegularExpressions; using System.Threading.Tasks; 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; namespace ComTest { /// <summary> /// MainWindow.xaml 的交互逻辑 /// </summary> public partial class MainWindow : Window { private Comm comm = new Comm(); public MainWindow() { InitializeComponent(); //xTxt.MaxLength = 3; comm.EventComReceived += Comm_EventComReceived; } //接收后触发委托事件 private void Comm_EventComReceived(byte[] byteBuffer) { Dispatcher.BeginInvoke(new Action(delegate { try { string str = Encoding.Default.GetString(byteBuffer); string str1 = str.Substring(str.IndexOf("X") + 1, 3); string str2 = str.Substring(str.IndexOf("Y") + 1, 3); labelX.Content = "收到X:" + str1; labelY.Content = "收到Y:" + str2; } catch { MessageBox.Show("请再打开一个窗口来测试"); } })); } //设置 private void setBtn_Click(object sender, RoutedEventArgs e) { comm.InitCOM(PortNameTxt.Text,baudRateTxt.Text,checkBitTxt.Text,dataBitsTxt.Text,stopBitTxt.Text); comm.OpenPort(); } //发送 private void sendBtn_Click(object sender, RoutedEventArgs e) { if (comm.OpenPort()) { comm.SendCommand(xTxt.Text,yTxt.Text); } } private void xTxt_TextChanged(object sender, TextChangedEventArgs e) { if (int.Parse(xTxt.Text) > 180) { xTxt.Text = "180"; } else if (int.Parse(xTxt.Text) < 0) { xTxt.Text = "0"; } } private void xTxt_PreviewTextInput(object sender, TextCompositionEventArgs e) { Regex re = new Regex("[^0-9]+"); e.Handled = re.IsMatch(e.Text); } private void yTxt_PreviewTextInput(object sender, TextCompositionEventArgs e) { Regex re = new Regex("[^0-9]+"); e.Handled = re.IsMatch(e.Text); } private void yTxt_TextChanged(object sender, TextChangedEventArgs e) { if (int.Parse(yTxt.Text) > 180) { yTxt.Text = "180"; } else if (int.Parse(yTxt.Text) < 0) { yTxt.Text = "0"; } } } }
MainWindow.xaml
<Window x:Class="ComTest.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:local="clr-namespace:ComTest" mc:Ignorable="d" Title="MainWindow" Height="350" Width="525"> <Grid> <TextBox x:Name="PortNameTxt" Margin="59,84,0,0" TextWrapping="Wrap" Text="COM1" HorizontalAlignment="Left" Width="85" Height="23" VerticalAlignment="Top"/> <Label x:Name="PortNameLabel" Content="串口号" Margin="75,52,0,0" HorizontalAlignment="Left" Width="46" Height="26" VerticalAlignment="Top"/> <Label x:Name="baudRateLabel" Content="波特率" Margin="190,51,0,0" HorizontalAlignment="Left" Width="46" Height="26" VerticalAlignment="Top"/> <TextBox x:Name="baudRateTxt" Margin="174,84,0,0" TextWrapping="Wrap" Text="9600" HorizontalAlignment="Left" Width="82" Height="23" VerticalAlignment="Top"/> <Button x:Name="setBtn" Content="确定设置" Margin="238,163,0,0" Click="setBtn_Click" HorizontalAlignment="Left" Width="75" Height="22" VerticalAlignment="Top"/> <Label x:Name="xLabel_" Content="X轴" Margin="39,202,0,0" HorizontalAlignment="Left" Width="30" Height="26" VerticalAlignment="Top"/> <TextBox x:Name="xTxt" Margin="20,234,0,0" TextWrapping="Wrap" Text="123" HorizontalAlignment="Left" Width="69" Height="23" VerticalAlignment="Top" PreviewTextInput="xTxt_PreviewTextInput" TextChanged="xTxt_TextChanged"/> <Label x:Name="yLabel" Content="Y轴" Margin="127,203,0,0" HorizontalAlignment="Left" Width="29" Height="26" VerticalAlignment="Top"/> <TextBox x:Name="yTxt" Margin="106,235,0,0" TextWrapping="Wrap" Text="321" HorizontalAlignment="Left" Width="69" Height="23" VerticalAlignment="Top" PreviewTextInput="yTxt_PreviewTextInput" TextChanged="yTxt_TextChanged"/> <Button x:Name="sendBtn" Content="发送" Margin="59,278,0,0" Click="sendBtn_Click" HorizontalAlignment="Left" Width="75" Height="22" VerticalAlignment="Top"/> <Label x:Name="checkBitLabel" Content="校验位" Margin="301,50,0,0" HorizontalAlignment="Left" Width="46" Height="26" VerticalAlignment="Top"/> <TextBox x:Name="checkBitTxt" Margin="286,84,0,0" TextWrapping="Wrap" Text="None" HorizontalAlignment="Left" Width="82" Height="23" VerticalAlignment="Top"/> <Label x:Name="dataBitsLabel" Content="数据位" Margin="408,51,0,0" HorizontalAlignment="Left" Width="46" Height="26" VerticalAlignment="Top"/> <TextBox x:Name="dataBitsTxt" Margin="389,84,0,0" TextWrapping="Wrap" Text="8" HorizontalAlignment="Left" Width="82" Height="23" VerticalAlignment="Top"/> <Label x:Name="stopBitLabel" Content="停止位" Margin="98,133,0,0" HorizontalAlignment="Left" Width="46" Height="26" VerticalAlignment="Top"/> <TextBox x:Name="stopBitTxt" Margin="78,164,0,0" TextWrapping="Wrap" Text="1" Height="23" VerticalAlignment="Top" HorizontalAlignment="Left" Width="82"/> <Label x:Name="labelX" Content="收到X:" HorizontalAlignment="Left" Margin="286,214,0,0" VerticalAlignment="Top" Width="141"/> <Label x:Name="labelY" Content="收到Y:" HorizontalAlignment="Left" Margin="286,256,0,0" VerticalAlignment="Top" Width="141"/> </Grid> </Window>
没啥想说的，先这样吧，以后有什么代码再接着往上贴