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   源码介绍

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c# 写的串口调试助手

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 MySerialPorts
{
    public partial class MainForm : Form
    {
        public bool OpenButton = true;
        public int ireadDataBox = 0;
        public MainForm()
        {
            InitializeComponent();
        }

        private void MainForm_Load(object sender, EventArgs e)
        {
            PortCom.DropDownStyle = ComboBoxStyle.DropDownList;
            string[] portlist = SerialPort.GetPortNames();
            foreach(string port in portlist)
            {
                PortCom.Items.Add(port);
            }
            if (PortCom.Items.Count != 0)
            {
                PortCom.SelectedIndex = 0;
            }
            baudBox.DropDownStyle = ComboBoxStyle.DropDownList;
            baudBox.SelectedIndex = 4;
            stopBitBox.DropDownStyle = ComboBoxStyle.DropDownList;
            stopBitBox.SelectedIndex = 0;
            dataBitBox.DropDownStyle = ComboBoxStyle.DropDownList;
            dataBitBox.SelectedIndex = 3;
            parityBox.DropDownStyle = ComboBoxStyle.DropDownList;
            parityBox.SelectedIndex = 0;
        }
        public void PortSet()
        {
            if (serialPort1.IsOpen == false)
            {
                serialPort1.PortName = PortCom.Text;
            }
            serialPort1.BaudRate = int.Parse(baudBox.Text);
            serialPort1.DataBits = int.Parse(dataBitBox.Text);
            switch (stopBitBox.Text)
            {
                case "1":
                    serialPort1.StopBits = StopBits.One;
                    break;
                case "1.5":
                    serialPort1.StopBits = StopBits.OnePointFive;
                    break;
                case "2":
                    serialPort1.StopBits = StopBits.Two;
                    break;
                default:
                    break;
            }
            switch (parityBox.Text)
            {
                case "无":
                    serialPort1.Parity = Parity.None;
                    break;
                case "奇校验":
                    serialPort1.Parity = Parity.Odd;
                    break;
                case "偶校验":
                    serialPort1.Parity = Parity.Even;
                    break;
                default:
                    break;
            }
        }
        public void btnComConnet_Click(object sender, EventArgs e)
        {
            if (PortCom.Items.Count != 0)
            {
                if (serialPort1.IsOpen == false)
                {
                    PortSet();
                    try
                    {
                        serialPort1.Open();
                        serialPort1.ReadTimeout = 1000;
                        serialPort1.WriteTimeout = 1000;
                        PortCom.Enabled = false;
                        btnComConnet.Text = "关闭串口";
                    }
                    catch
                    {
                        MessageBox.Show("打开串口失败");
                    }

                }
                else
                {
                    try
                    {
                        serialPort1.Close();
                        PortCom.Enabled = true;
                        btnComConnet.Text = "打开串口";
                    }
                    catch
                    {
                        MessageBox.Show("串口关闭失败");
                    }
                }
            }
            else
            {
                MessageBox.Show("没有串口，请检查电脑");
            }
        }

        private void btnSendData_Click(object sender, EventArgs e)
        {
            if (serialPort1.IsOpen)
            {
                byte[] data = Encoding.Default.GetBytes(SendDataBox.Text);
                if (selectHexBox.Checked == true)
                {
                    for(int i=0; i<data.Length; i )
                    {
                        byte temp = data[i];
                        string tempHex = temp.ToString("X2") "";
                        serialPort1.Write(tempHex);
                    }
                }
                else
                {
                    serialPort1.Write(data, 0, data.Length);
                }
            }
            else
            {
                MessageBox.Show("请先打开串口");
            }
        }

        private void MainForm_Activated(object sender, EventArgs e)
        {
            if(serialPort1.IsOpen)
            {
                try
                {
                    string message = serialPort1.ReadLine();
                    readDataBox.Text = message;
                }
                catch
                {

                }
            }
        }

        private void btnClearData_Click(object sender, EventArgs e)
        {
            SendDataBox.Clear();
        }

        private void selectHexBox_CheckedChanged(object sender, EventArgs e)
        {
            //if (serialPort1.IsOpen)
            //{
               
            //}
            //else
            //{
            //    MessageBox.Show("请先打开串口");
            //}
        }
        public delegate void DeleUpdateTextbox(string dataRe);
        private void serialPort1_DataReceived(object sender, SerialDataReceivedEventArgs e)
        {
            string dataRe;
            byte[] byteRead = new byte[serialPort1.BytesToRead];
            DeleUpdateTextbox deleupdatetextbox = new DeleUpdateTextbox(UpdateTextBox);
            serialPort1.Read(byteRead, 0, byteRead.Length);
            if (DisplayHex.Checked == true)
            {
                for (int i = 0; i < byteRead.Length; i )
                {
                    byte temp = byteRead[i];
                    dataRe = temp.ToString("X2") "";
                    readDataBox.Invoke(deleupdatetextbox, dataRe);
                }
            }
            else
            {
                dataRe = Encoding.Default.GetString(byteRead);
                readDataBox.Invoke(deleupdatetextbox, dataRe);
            }
        }

        private void UpdateTextBox(string dataRe)
        {
            if(ireadDataBox == 0)
            {
                this.readDataBox.Text = dataRe;
                ireadDataBox ;
            }
            else
            {
                readDataBox.AppendText(dataRe);
            }

        }

        private void DisplayHex_CheckedChanged(object sender, EventArgs e)
        {
            //if (serialPort1.IsOpen)
            //{
            //}
            //else
            //{
            //    MessageBox.Show("请先打开串口");
            //}
        }

        private void ClearRead_Click(object sender, EventArgs e)
        {
            readDataBox.Clear();
        }

        private void PortSetValueChange(object sender, EventArgs e)
        {
            if (serialPort1.IsOpen == true)
            {
                PortSet();
            }
        }

        private void PortCom_DropDown(object sender, EventArgs e)
        {
            timer1.Enabled = false;
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            int num = PortCom.SelectedIndex;
            PortCom.Items.Clear();
            string[] portlist = SerialPort.GetPortNames();
            PortCom.DropDownStyle = ComboBoxStyle.DropDownList;
            PortCom.Items.AddRange(portlist);
            if (PortCom.Items.Count != 0)
            {
                if ((PortCom.Items.Count-1) < num)
                {
                    PortCom.SelectedIndex = (PortCom.Items.Count-1);
                }
                else
                {
                    PortCom.SelectedIndex = num;
                }
            }
        }

        private void PortCom_DropDownClosed(object sender, EventArgs e)
        {
            timer1.Enabled = true;
        }
    }
}