C#窗体串口通讯界面编程.zip

using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; using System.IO.Ports; using System.Text.RegularExpressions; namespace 串口 { public partial class Form1 : Form { SerialPort sp1 = new SerialPort(); public Form1() { InitializeComponent(); } private void zedGraphControl1_Load(object sender, EventArgs e) { } private void Form1_Load(object sender, EventArgs e) { Control.CheckForIllegalCrossThreadCalls = false; sp1.DataReceived += new SerialDataReceivedEventHandler(sp1_DataReceived); string[] str = SerialPort.GetPortNames(); //检查是否有串口 if (str == null) { MessageBox.Show("本机没有串口！", "Error"); return; } foreach (string s in System.IO.Ports.SerialPort.GetPortNames()) { cbSerial.Items.Add(s); //添加串口 } cbSerial.SelectedIndex = 0; //各默认选择项 cbBaudRate.SelectedIndex = 3; cbDataBits.SelectedIndex = 3; cbStop.SelectedIndex = 0; cbParity.SelectedIndex = 0; rdbSend.Checked = true; //发送接收默认选择16进制 rdbRcv.Checked = true; } private void button1_Click(object sender, EventArgs e) { if (!sp1.IsOpen) //如果没有打开 { try { string serialName = cbSerial.SelectedItem.ToString(); sp1.PortName = serialName; //设置各串口号 string strBaudRate = cbBaudRate.Text; //串口设置 string strDateBits = cbDataBits.Text; string strStopBits = cbStop.Text; Int32 iBaudRate = Convert.ToInt32(strBaudRate); Int32 iDateBits = Convert.ToInt32(strDateBits); sp1.BaudRate = iBaudRate; //波特率 sp1.DataBits = iDateBits; //数据位 switch (cbStop.Text) //停止位 { case "1": sp1.StopBits = StopBits.One; break; case "1.5": sp1.StopBits = StopBits.OnePointFive; break; case "2": sp1.StopBits = StopBits.Two; break; default: MessageBox.Show("Error:参数不正确！", "Error"); break; } switch (cbParity.Text) //校验位 { case "无": sp1.Parity = Parity.None; break; case "奇校验": sp1.Parity = Parity.Odd; break; case "偶校验": sp1.Parity = Parity.Even; break; default: MessageBox.Show("Error:参数不正确！", "Error"); break; } if (sp1.IsOpen == true) { sp1.Close(); } //状态栏设置 tsSpNum.Text = "串口号：" + sp1.PortName + "|"; tsBaudRate.Text = "波特率：" + sp1.BaudRate + "|"; tsDataBits.Text = "数据位：" + sp1.DataBits + "|"; tsStopBits.Text = "停止位：" + sp1.StopBits + "|"; tsParity.Text = "校验位：" + sp1.Parity + "|"; //设置必要控件不可用 cbSerial.Enabled = false; cbBaudRate.Enabled = false; cbDataBits.Enabled = false; cbStop.Enabled = false; cbParity.Enabled = false; sp1.Open(); button1.Text = "关闭串口"; } catch (System.Exception ex) { MessageBox.Show("Error:" + ex.Message, "Error"); return; } } else { //状态栏设置（串口关闭的情况下） tsSpNum.Text = "串口号：未指定|"; tsBaudRate.Text = "波特率：未指定|"; tsDataBits.Text = "数据位：未指定|"; tsStopBits.Text = "停止位：未指定|"; tsParity.Text = "校验位：未指定|"; //恢复控件功能 cbSerial.Enabled = true; cbBaudRate.Enabled = true; cbDataBits.Enabled = true; cbStop.Enabled = true; cbParity.Enabled = true; sp1.Close(); button1.Text = "打开串口"; } } private void btnSend_Click(object sender, EventArgs e) { if (!sp1.IsOpen) //如果没有打开 { MessageBox.Show("清先打开串口！", "Error"); return; } string strSend = txtSend.Text; if (rdbSend.Checked == true) { string sendBuf = strSend; //发送缓冲 string sendnoNull = sendBuf.Trim(); //去除前后空白字符 string sendnoCommaE=sendnoNull.Replace(',',' '); //去掉英文逗号 string sendnoCommaC=sendnoCommaE.Replace('，',' ');//去掉中文逗号 string sendnoStr1=sendnoCommaC.Replace("0x",""); string sendnoStr2=sendnoStr1.Replace ("0X",""); string[] strArray = sendnoStr2.Split(' '); int byteBufferLength = strArray.Length; for (int i = 0; i<strArray.Length;i++ ) ////去掉数组中的空字符元素 { if (strArray[i] == "") { byteBufferLength--; } } byte[] byteBuffer=new byte[byteBufferLength]; //定义除去空字符后的新发送缓冲数组 int ii=0; for(int i=0;i<strArray.Length;i++) { Byte[] bytesOfStr=Encoding.Default.GetBytes(strArray[i]);/////////???将每个字符元素编码为一个字节 int decNum=0; if(strArray[i]=="") { continue ; } else { decNum=Convert.ToInt32(strArray[i],16); //将空字符以外的字符元素转换成32位有符号整形 } try //保证发送文本框中只能输入一个字节的字符即eb 90等 { byteBuffer[ii]=Convert.ToByte(decNum); } catch (System .Exception ex) { MessageBox.Show ("字节越界，请逐个字节输入！","Error"); return; } ii++; } sp1.Write(byteBuffer,0,byteBuffer.Length); } else //以字符串形式发送 { sp1.WriteLine(txtSend.Text); } } void sp1_DataReceived(object sender, SerialDataRe