using Microsoft.Win32; using System; using System.Drawing; using System.Windows.Forms; namespace C_Windows_1 { public partial class PortSetting : Form { public PortSetting() { InitializeComponent(); } private void PortSetting_Load(object sender, EventArgs e) { string[] ports = System.IO.Ports.SerialPort.GetPortNames();//获得有效端口号 PortNum.Items.AddRange(ports); CodePort1.Items.AddRange(ports); Baudrate.SelectedIndex = 0; Read(); if (Form1.f1.CH1.IsOpen()) { label6.Text = "已连接"; label6.ForeColor = Color.Green; label5.Text = "已连接"; label5.ForeColor = Color.Green; Form1.f1.label6.Text = "已连接"; BtnCon1.Enabled = false; PortNum.Enabled = false; Baudrate.Enabled = false; } else { label6.Text = "未连接"; label6.ForeColor = Color.Red; label5.Text = "未连接"; label5.ForeColor = Color.Red; Form1.f1.label6.Text = "未连接"; BtnCon1.Enabled = true; PortNum.Enabled = true; Baudrate.Enabled = true; } if (Form1.f1.SerialPort1.IsOpen) { CodeIsComm1.Text = "已连接"; CodeIsComm1.ForeColor = Color.Green; PortBtnCon1.Enabled = false; } else { CodeIsComm1.Text = "未连接"; CodeIsComm1.ForeColor = Color.Red; PortBtnCon1.Enabled = true; } } private void BtnCon1_Click(object sender, EventArgs e) { try { if (Form1.f1.CH1.IsOpen()) { Form1.f1.CH1.Close(); } Form1.f1.ModbusRtuint(Form1.f1.CH1, Convert.ToByte(Form1.f1.Station.Text), PortNum.Text, Convert.ToInt32(Baudrate.Text), 8, System.IO.Ports.StopBits.One, System.IO.Ports.Parity.None); if (Form1.f1.CH1.IsOpen()) { Form1.f1.label6.Text = "已连接"; Form1.f1.BtnCon1.Enabled = false; Form1.f1.label6.ForeColor = Color.Green; label6.Text = "已连接"; label6.ForeColor = Color.Green; label5.Text = "已连接"; label5.ForeColor = Color.Green; BtnCon1.Enabled = false; PortNum.Enabled = false; Baudrate.Enabled = false; SetPort(); Form1.f1.PortNum.Text = PortNum.Text; } else { MessageBox.Show("连接失败,请检查端口占用情况"); } } catch (Exception ex) { MessageBox.Show(ex.Message); } } private void BtnRefresh_Click(object sender, EventArgs e) { PortNum.Items.Clear(); string[] ports = System.IO.Ports.SerialPort.GetPortNames(); PortNum.Items.AddRange(ports); } private void BtnBreak_Click(object sender, EventArgs e) { try { if (Form1.f1.CH1.IsOpen()) { Form1.f1.CH1.Close(); if (Form1.f1.CH1.IsOpen() is false) { label6.Text = "未连接"; label6.ForeColor = Color.Red; label5.Text = "未连接"; label5.ForeColor = Color.Red; Form1.f1.label6.Text = "未连接"; Form1.f1.label6.ForeColor = Color.Red; BtnCon1.Enabled = true; PortNum.Enabled = true; Baudrate.Enabled = true; Form1.f1.BtnCon1.Enabled = true; } } //else //{ // ////读取启动信号需停止 // //Form1.f1.Timer1.Stop(); // //Form1.f1.Timer1.Dispose(); // //if (Form1.f1.Timer1.Enabled is true) // //{ // // Form1.f1.Timer1.Stop(); // //} // Form1.f1.SerialPort1.Close(); // if (Form1.f1.SerialPort1.IsOpen is false) // { // label6.Text = "未连接"; // label6.ForeColor = Color.Red; // BtnCon1.Enabled = true; // label5.Text = "未连接"; // label5.ForeColor = Color.Red; // Form1.f1.label6.Text = "未连接"; // PortNum.Enabled = true; // Baudrate.Enabled = true; // } //} } catch (Exception ex) { MessageBox.Show(ex.Message); } } //发送过程 private void Send() { try { //将CRC冗余码添加进指令中 String str = Form1.f1.Station.Text + "0300190001"; byte[] byt = StrtoHexbyte(str); int str2; str2 = Crc16_Modbus(byt, byt.Length); string str3; str3 = Convert.ToString((str2 >> 8) & 0xff, 16); string str4; str4 = Convert.ToString(str2 & 0xff, 16); if (str3.Length == 1) { str3 = "0" + str3; } if (str4.Length == 1) { str4 = "0" + str4; } SendText.Text = str + str4 + str3; String str5 = SendText.Text; if (str5.Length > 0) { byte[] byt2 = StrtoHexbyte(str5); TestPort1.Write(byt2, 0, byt2.Length);//发送数据 } } catch (Exception ex) { MessageBox.Show(ex.Message); } } //计算CRC冗余码 private int Crc16_Modbus(byte[] modbusdata, int length) { int i, j; int crc = 0xffff;//0xffff or 0 for (i = 0; i < length; i++) { crc ^= modbusdata[i] & 0xff; for (j = 0; j < 8; j++) { if ((crc & 0x01) == 1) { crc = (crc >> 1) ^ 0xa001; } else { crc >>= 1; } } } return crc; } //将发送数据转为十六进制数据 private static byte[] StrtoHexbyte(String hexstring) { int i; hexstring = hexstring.Replace(" ", ""); byte[] returnBytes = new byte[(hexstring.Length) / 2]; try { for (i = 0; i < returnBytes.Length; i++) { returnBytes[i] = Convert.ToByte(hexstring.Substring(i * 2, 2), 16); } } catch (Exception ex) { MessageBox.Show(ex.Message); return null; } return returnBytes; } //接收数据 private void TestPort1_DataReceived(object sender, System.IO.Ports.SerialDataReceivedEventArgs e) { try { System.Threading.Thread.Sleep(100); int len = TestPort1.BytesToRead;//获取可以读取的字节数 if (len > 1) { byte[] buff = new byte[len];//创建缓存数据数组 TestPort1.Read(buff, 0, len);//把数据读取到buff数组 //string str = Encoding.Default.GetString(buff); Invoke((new System.Action(() => //串口接收事件会自动创建线程 { ReceiveText.Clear(); ReceiveText.Text = ByteToHexStr(buff); TestPort1.DiscardInBuffer(); } ))); } } catch (Exception ex) { MessageBox.Show(ex.Message); } } private void ReceiveText_TextChanged(object sender, EventArgs e) { //if (ReceiveText.Text.Length > 0) //{ // timer1.Interval = 200; // timer1.Start(); //} } private void Stagenum() { string testresult = ReceiveText.Text.Replace(" ", ""); if (testresult.Length > 10 && testresult.Substring(2, 2) == "03") { //设置端口的参数，包括波特率等 Form1.f1.SerialPort1.BaudRate = int.Parse(Baudrate.Text); Form1.f1.SerialPort1.PortName = PortNum.Text; Form1.f1.SerialPort1.DataBits = 8; Form1.f1.SerialPort1.StopBits = System.IO.Ports.StopBits.One; Form1.f1.SerialPort1.Parity = System.IO.Ports.Parity.None; Form1.f1.SerialPort1.Open(); if (Form1.f1.SerialPort1.IsOpen) { label5.Text = "已连接"; label5.ForeColor = Color.Green; Form1.f1.label6.Text = "已连接"; Form1.f1.label6.ForeColor = Color.Green; Form1.f1.PortNum.Text = Form1.f1.SerialPort1.PortName; Form1.f1.Timer1.Interval = 800; Form1.f1.Timer1.Start(); Form1.f1.stage = 1; Form1.f1.BtnCon1.Enabled = false; //stage = 1; SetPort(); } } } //十六进制接收 public static string ByteToHexStr(byte[] bytes) { string returnStr = ""; try { if (bytes != null) { for (int i = 0; i < bytes.Length; i++) { returnStr += bytes[i].ToString("X2");//每个字节转换成两位十六进制 returnStr += " ";//两个16进制用空格隔开,方便看数据 } } return returnStr; } catch (Exception) { return returnStr; } } //端口写入 private void SetPort() { RegistryKey regName; regName = Registry.CurrentUser.OpenSubKey("SOFTWARE\\Microsoft\\PMD\\1.0\\User-LL18-Set", true); if (regName is null) { regName = Registry.CurrentUser.CreateSubKey("SOFTWARE\\Microsoft\\PMD\\1.0\\User-LL18-Set"); } regName.SetValue("port", PortNum.Text); regName.SetValue("Baudrate", Baudrate.Text); regName.Close(); } private void SetcodePort() { RegistryKey regName; regName = Registry.CurrentUser.OpenSubKey("SOFTWARE\\Microsoft\\PMD\\1.0\\User-LL18-Set", true); if (regName is null) { regName = Registry.CurrentUser.CreateSubKey("SOFTWARE\\Microsoft\\PMD\\1.0\\User-LL18-Set"); } regName.SetValue("codeport", CodePort1.Text); regName.SetValue("codeBaudrate", CodeBaud1.Text); regName.Close(); } private void Read() { RegistryKey regName; regName = Registry.CurrentUser.OpenSubKey("SOFTWARE\\Microsoft\\PMD\\1.0\\User-LL18-Set", true); if (regName is null) { regName = Registry.CurrentUser.CreateSubKey("SOFTWARE\\Microsoft\\PMD\\1.0\\User-LL18-Set"); } regName.OpenSubKey("User"); if (regName.GetValue("port") is null) { PortNum.Text = ""; } else { PortNum.Text = regName.GetValue("port").ToString(); } if (regName.GetValue("Baudrate") is null) { Baudrate.Text = "9600"; } else { Baudrate.Text = regName.GetValue("Baudrate").ToString(); } if (regName.GetValue("codeport") is null) { CodePort1.Text = "COM8"; } else { CodePort1.Text = regName.GetValue("codeport").ToString(); } CodeBaud1.Text = "9600"; regName.Close(); } private void timer1_Tick(object sender, EventArgs e) { //try //{ // timer1.Stop(); // TestPort1.Close(); // Stagenum(); //} //catch (Exception ex) //{ // timer1.Stop(); //} } private void PortBtnCon1_Click(object sender, EventArgs e) { try { Form1.f1.CodePort1.Close(); //设置端口的参数，包括波特率等 Form1.f1.CodePort1.BaudRate = int.Parse(CodeBaud1.Text); Form1.f1.CodePort1.PortName = CodePort1.Text; Form1.f1.CodePort1.DataBits = 8; Form1.f1.CodePort1.StopBits = System.IO.Ports.StopBits.One; Form1.f1.CodePort1.Parity = System.IO.Ports.Parity.None; Form1.f1.CodePort1.Open(); if (Form1.f1.CodePort1.IsOpen) { CodeIsComm1.Text = "已连接"; CodeIsComm1.ForeColor = Color.Green; CodePort1.Enabled = false; PortBtnCon1.Enabled = false; CodeBaud1.Enabled = false; SetcodePort(); } } catch (Exception ex) { //MessageBox.Show(ex.Message); MessageBox.Show(ex.StackTrace); } } private void PortBtnRefresh_Click(object sender, EventArgs e) { CodePort1.Items.Clear(); string[] ports = System.IO.Ports.SerialPort.GetPortNames(); CodePort1.Items.AddRange(ports); } private void PortBtnBreak_Click(object sender, EventArgs e) { Form1.f1.CodePort1.Close(); if (!Form1.f1.CodePort1.IsOpen) { CodeIsComm1.Text = "未连接"; CodeIsComm1.ForeColor = Color.Red; CodePort1.Enabled = true; PortBtnCon1.Enabled = true; CodeBaud1.Enabled = true; } } } }