串口调试助手源码(接收数据/发送数据)

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;namespace WindowsFormsApplication1{ public partial class Form1 : Form { SerialPort sp =null; bool isOpen = false; bool isSetProperty = false; bool isHex = false; public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { this.MaximumSize = this.Size; this.MinimumSize = this.Size; this.MaximizeBox = false; for(int i=0;i<10;i ) { cbxCOMPort.Items.Add("COM" (i 1).ToString()); } cbxCOMPort.SelectedIndex = 0; cbxBaudRate.Items.Add("1200"); cbxBaudRate.Items.Add("2400"); cbxBaudRate.Items.Add("4800"); cbxBaudRate.Items.Add("9600"); cbxBaudRate.Items.Add("19200"); cbxBaudRate.Items.Add("38400"); cbxBaudRate.Items.Add("43000"); cbxBaudRate.Items.Add("56000"); cbxBaudRate.Items.Add("57600"); cbxBaudRate.Items.Add("115200"); cbxBaudRate.SelectedIndex = 5; cbxStopBits.Items.Add("0"); cbxStopBits.Items.Add("1"); cbxStopBits.Items.Add("1.5"); cbxStopBits.Items.Add("2"); cbxStopBits.SelectedIndex = 0; cbxDataBits.Items.Add("8"); cbxDataBits.Items.Add("7"); cbxDataBits.Items.Add("6"); cbxDataBits.Items.Add("5"); cbxDataBits.SelectedIndex = 0; cbxParitv.Items.Add("无"); cbxParitv.Items.Add("奇校验"); cbxParitv.Items.Add("偶校验"); cbxParitv.SelectedIndex = 0; rbnChar.Checked = true; } private void btnCheckCOM_Click(object sender, EventArgs e) { bool comExistence = false; cbxCOMPort.Items.Clear(); for(int i=0;i<10;i ) { try { SerialPort sp = new SerialPort("COM" (i 1).ToString()); sp.Open(); sp.Close(); cbxCOMPort.Items .Add("COM" (i 1).ToString()); comExistence = true; } catch(Exception) { continue; } } if (comExistence) { cbxCOMPort.SelectedIndex = 0; } else { MessageBox.Show("没有找到可用串口", "错我提示"); } } private bool CheckPortSetting() { if (cbxCOMPort.Text.Trim() == "") return false; if (cbxBaudRate.Text.Trim() == "") return false; if (cbxDataBits.Text.Trim() == "") return false; if (cbxParitv.Text.Trim() == "") return false; if (cbxStopBits.Text.Trim ()== "") return false; return true; } private bool CheckSendData() { if (tbxSendData.Text.Trim() == "") return false; return true; } /* private bool SetPortProperty() { sp = new SerialPort(); sp.PortName = cbxCOMPort.Text.Trim(); sp.BaudRate = Convert.Tolnt32(cbxBaudRate.Text.Trim()); float f = Convert.ToSingle(cbxStopBits.Text.Trim()); if(f==0) { sp.StopBits = StopBits.None; } else if(f==1.5) { sp.StopBits = StopBits.OnePointFive; } else if (f == 2) { sp.StopBits = StopBits.Two; } else { sp.StopBits = StopBits.One; } sp.DataBits = Convert.Tolnt16(cbxDataBits.Text.Trim()); string s = cbxParitv.Text.Trim(); if(s.CompareTo("无")==0) { sp.Parity = Parity.None; } else if(s.CompareTo("奇校验")==0) { sp.Parity = Parity.Odd; } else if (s.CompareTo("偶校验") == 0) { sp.Parity = Parity.Even; } else { sp.Parity = Parity.None; } sp.ReadTimeout = -1; sp.RtsEnable = true; sp.DataReceived = new SerialDataReceivedEventHandler(sp_DataReceived); if(rbnHex.Checked) { isHex = true; } else { isHex = false; } }*/ private void btnSend_Click(object sender, EventArgs e) { if(isOpen) { try { sp.WriteLine(tbxSendData.Text); } catch(Exception) { MessageBox.Show("发送数据时发生错误", "错误提示"); return; } } else { MessageBox.Show("串口未打开！", "错误提示"); return; } if(!CheckSendData()) { MessageBox.Show("请输入要发送的数据！", "错误提示"); return; } } private void btnOpenCom_Click(object sender, EventArgs e) { if(isOpen==false) { if(!CheckPortSetting()) { MessageBox.Show("串口未设置", "错误提示"); return; } if(!isSetProperty) { //SetPortProperty(); isSetProperty = true; } try { sp.Open(); isOpen = true; btnOpenCom.Text = "关闭串口"; cbxCOMPort.Enabled = false; cbxBaudRate.Enabled = false; cbxDataBits.Enabled = false; cbxParitv.Enabled = false; cbxStopBits.Enabled = false; rbnChar.Enabled = false; rbnHex.Enabled = false; } catch (Exception) { isSetProperty = false; isOpen = false; MessageBox.Show("串口无效或已被占用", "错误提示"); } } else { try { sp.Close(); isOpen = false; isSetProperty = false; btnOpenCom.Text = "打开串口"; cbxCOMPort.Enabled = true; cbxBaudRate.Enabled = true; cbxDataBits.Enabled = true; cbxParitv.Enabled = true; cbxStopBits.Enabled = true; rbnChar.Enabled = true; rbnHex.Enabled = true; } catch { } } } /* private void sp_DataRcceived(object sender, SerialDataReceivedEventArgs e) { System.Threading.Thread.Sleep(100); // this Inovke((EventHandler)(delegate { if (isHex == false) { tbxRecvData.Text = sp.ReadLine(); } else { Byte[] ReceivedData = new Byte[sp.BytesToRead]; sp.Read(ReceivedData, 0, ReceivedData.Length); String RecvDataText = null; for (int i = 0; i < ReceivedData.Length - 1; i ) { RecvDataText = ("0x" ReceivedData[i].ToString("X2") " "); } tbxRecvData.Text = RecvDataText; } sp.DiscardInBuffer(); })); }*/ private void btnCleanData_Click(object sender, EventArgs e) { tbxRecvData.Text = ""; tbxSendData.Text = ""; } private void label4_Click(object sender, EventArgs e) { } }}