串口助手程序

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO.Ports;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Text.RegularExpressions;
namespace USART003
{

    public partial class Form1 : Form
    {
        private const int V = 0x00;
        string msgShowStr = "";
        int timerCount = 0;
        int beefCount = 0;
        //Boolean enterBeeflag = false;
       
        public Form1()
        {
            InitializeComponent();
            System.Windows.Forms.Control.CheckForIllegalCrossThreadCalls = false;//设置该属性 为false
        }

        private void button1_Click(object sender, EventArgs e)
        {
            Boolean isCanSend = true;//判断是否需要发送串口数据




            //2. 准备要发送的数据,将其转成byte数组数据

            byte[] buffer = new byte[8];
            //2.1 判断要发送的数据类型是数值还是字符
            if (serialPort1.IsOpen)//判断串口是否打开
            {
                if ("".Equals(input.Text) == false)
                {
                    if (numModeOfSend.Checked)//数值模式
                    {


                        //MessageBox.Show("数值");
                        //将用户输入的字符串转成byte数组数据
                        int temp = 0;

                        string userInput = input.Text.Trim();//"00 00 00 00 00 00 00 00"
                        if (userInput.Length % 2 != 0)
                        {
                            MessageBox.Show("发送失败，请检查数据格式,发送数据个数必须是偶数");
                            isCanSend = false;
                        }
                        int j = 0;
                        if (userInput.Length == 1)//假设用户输入1，则改成01,否则下面的for循环进不去
                        {
                            userInput = "0" + userInput;
                        }
                        /*else if (userInput.Length == 0)
                        {
                            MessageBox.Show("请输入您要发送的数据");
                            isCanSend = false;
                        }*/
                        for (int i = 0; i < userInput.Length / 2; i++, j += 2)
                        {
                            string data = userInput.Substring(0 + j, 2);
                            int tempInt = Convert.ToInt32(data);
                            byte tempBtye = Convert.ToByte(tempInt);

                            buffer[i] = Convert.ToByte(data, 10);//将字符串转成16进制的byte数据

                        }



                        //buffer = BitConverter.GetBytes(temp);//
                        //Convert.ToByte(buffer[0], 16);
                        //buffer = System.Text.Encoding.Default.GetBytes(userInput);
                    }
                    else if (charModeOfSend.Checked)//
                    {
                        MessageBox.Show("字符");

                    }
                    if (isCanSend)
                    {
                        sendMsg(buffer);//发送串口数据
                    }


                }
                else
                {
                    MessageBox.Show("请输入您要发送的数据");
                }

            }
            else
            {
                MessageBox.Show("请先打开串口再发送");
            }





        }

        private void radioButton1_CheckedChanged(object sender, EventArgs e)
        {

        }
        /**
         @brief 程序启动加载程序
          
        */
        private void Form1_Load(object sender, EventArgs e)
        {
            /*  1. 初始化端口选择下拉框
             *  2. 初始化波特率选择下拉框
             */
            int i;
            //1. 端口初始化
            for (i = 0; i < 20; i++)
            {
                portSelect.Items.Add("COM" + i);
            }
            portSelect.Text = "COM9";

            //2. 波特率初始化
            baudSelect.Text = "115200";
            serialPort1.DataReceived += new System.IO.Ports.SerialDataReceivedEventHandler(port_DataReceive);
           // msgShowBox.Text += "你好";

        }

        private void port_DataReceive(object sender, SerialDataReceivedEventArgs e)
        {
            if (serialPort1.IsOpen)
            {
                if (charModeOfReceive.Checked)//字符模式
                {
                    string str = serialPort1.ReadExisting();
                    msgShowBox.AppendText(str+" ");
                    if ("LED1 ON".Equals(str) || "KEY1 ".Equals(str))
                    {
                        LED1_STATE.BackColor = Color.Red;
                    }else if ("LED1 OFF".Equals(str) || "KEY2 ".Equals(str))
                    {
                        LED1_STATE.BackColor = Color.White;
                    }
                    if ("LED2 ON".Equals(str))
                    {
                        LED2.BackColor = Color.Red;
                    }
                    else if ("LED2 OFF".Equals(str))
                    {
                        LED2.BackColor = Color.White;
                    }
                    else if ("BUZZER".Equals(str))//BUZZER
                    {
                        beef.BackColor = Color.Red;
                        beef.BackColor = Color.Red;
                        beef.BackColor = Color.Red;
                        beef.BackColor = Color.Red;
                        beef.BackColor = Color.Red;
                        beef.BackColor = Color.Red;
                        beefCount = 0;
                    }else if (str.Contains("VCC"))//收到了报文1
                    {
                        //MessageBox.Show(str);
                        textBox1.Text = str;
                        //将D0~D7解析出来
                        //如：D0:238
                        //string[] strArr = str.Split("MSG1");//MSG1:1:2:3:4:5:6:7:8
                        string[] sarr1 = Regex.Split(str, "}", RegexOptions.IgnoreCase);

                        string[] sarr2 = Regex.Split(str, ":", RegexOptions.IgnoreCase);//MSG1:1:2:3:4:5:6:7:8
                        //MessageBox.Show(sarr1[0]);
#if false
                        for (int i=1;i<strArr.Length;i++)
                        {
                            try {
                                //arr[i] = Convert.ToInt32(strArr[i]);
                                textBox1.Text += strArr[i] + "  ";
                            }
                            catch
                            {
                                MessageBox.Show("报文解析错误");

                            }
                            
                            VCC.Text += strArr[i]+"  ";
                        }
#endif
                        
                        
                    }
                    //msgShowBox.Text += "";
                    msgShowStr += str;
                }
                else if (numModeOfReceive.Checked)//数值模式接收
                {
                    byte data;
                    data = (byte)serialPort1.ReadByte();
                    string str = Convert.ToString(data, 16).ToUpper();
                    //msgShowStr += str;
                    msgShowBox.AppendText("0x" + (str.Length == 0 ? "0" + str : str));
                    //msgShowBox.Text += "0x";
                    //msgShowBox.Text += str.Length == 1 ? "0" + str : str;


                }
            }
            //add(msgShowStr);


            //throw new NotImplementedException();
        }

        private void add(string str)
        {
            msgShowBox.Text += str;
        }



        private void baudSelect_SelectedIndexChanged(object sender, EventArgs e)
        {

        }

        private void input_TextChanged(object sender, EventArgs e)
        {

        }

        private void sendMsg(byte[] buffer)
        {

            //2. 写入数据
            try
            {
                serialPort1.Write(buffer, 0, 1);
            }
            catch
            {
                MessageBox.Show("串口写入数据出错");
                serialPort1.Close();
                openPortButton.Enabled = true;
                closePortButton.Enabled = false;
            }




        }

        private void openPortButton_Click(object sender, EventArgs e)
        {
            try
            {
                //1. 打开串口
                serialPort1.PortName = portSelect.Text;
                serialPort1.BaudRate = Convert.ToInt32(baudSelect.Text);
                serialPort1.Open();
                openPortButton.Enabled = false;
                closePortButton.Enabled = true;
            }
            catch
            {
                if (serialPort1.IsOpen)//判断端口是否已经打开
                {
                    serialPort1.Close();//已经打开了，除了问题，一定要先将端口关闭
                }
                MessageBox.Show("端口错误");
            }

        }

        private void closePortButton_Click(object sender, EventArgs e)
        {
            try
            {
                serialPort1.Close();
                openPortButton.Enabled = true;
                closePortButton.Enabled = false;
            }
            catch
            {
                MessageBox.Show("关闭失败");
            }


        }

        private void portSelect_SelectedIndexChanged(object sender, EventArgs e)
        {
            //MessageBox.Show("你好");

        }

        private void label6_Click(object sender, EventArgs e)
        {

        }

        private void panel4_Paint(object sender, PaintEventArgs e)
        {

        }
        int btemp = 0;
        private void button3_Click(object sender, EventArgs e)
        {
            
            byte[] buffer = new byte[1];
            buffer[0] = btemp == 0 ? (byte)0x00 : (byte)0x01;
            btemp = 1 - btemp;
            
            sendMsg(buffer);
        }
        int btemp2 = 0;
        private void button2_Click(object sender, EventArgs e)
        {
            byte[] buffer = new byte[1];
            buffer[0] = btemp2 == 0 ? (byte)0x03 : (byte)0x04;
            btemp2 = 1 - btemp2;

            sendMsg(buffer);
        }

        private void button4_Click(object sender, EventArgs e)
        {
            byte[] buffer = new byte[1];
            buffer[0] = 0x02;
            

            sendMsg(buffer);
        }

        private void beef_Click(object sender, EventArgs e)
        {

        }
        int countemp = 0;
        Boolean flag1 = true;
        private void timer1_Tick(object sender, EventArgs e)
        {
            timerCount++;
            beefCount++;
            

            if (beefCount >= 3)
            {
                beef.BackColor = Color.White;
            }
            
        }

        private void beefCnt_Click(object sender, EventArgs e)
        {

        }

        private void LED2_Click(object sender, EventArgs e)
        {

        }

        private void startAllPowerBtn_Click(object sender, EventArgs e)
        {
            byte[] buffer = new byte[1];
            buffer[0] = 0x05;
            sendMsg(buffer);
        }

        private void button1_Click_1(object sender, EventArgs e)
        {
            byte[] buffer = new byte[1];
            buffer[0] = 0x06;
            sendMsg(buffer);
        }

        private void button5_Click(object sender, EventArgs e)
        {
            msgShowBox.Text = "";
        }
    }
}