form1.cs

该程序为PC机与单片机通过RS-232串行口通信的PC端程序

            this.t_stopbyte.Size = new System.Drawing.Size(80, 21);
            this.t_stopbyte.TabIndex = 2;
            this.t_stopbyte.Text = "1";
            // 
            // labParitybit
            // 
            this.labParitybit.Location = new System.Drawing.Point(16, 157);
            this.labParitybit.Name = "labParitybit";
            this.labParitybit.Size = new System.Drawing.Size(56, 16);
            this.labParitybit.TabIndex = 1;
            this.labParitybit.Text = "校验位：";
            // 
            // t_parity
            // 
            this.t_parity.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
            this.t_parity.Enabled = false;
            this.t_parity.Location = new System.Drawing.Point(80, 152);
            this.t_parity.Name = "t_parity";
            this.t_parity.Size = new System.Drawing.Size(80, 21);
            this.t_parity.TabIndex = 2;
            this.t_parity.Text = "0";
            // 
            // btnClear
            // 
            this.btnClear.Location = new System.Drawing.Point(12, 272);
            this.btnClear.Name = "btnClear";
            this.btnClear.Size = new System.Drawing.Size(40, 23);
            this.btnClear.TabIndex = 3;
            this.btnClear.Text = "清空";
            this.btnClear.Click += new System.EventHandler(this.btnClear_Click);
            // 
            // btnInit
            // 
            this.btnInit.FlatStyle = System.Windows.Forms.FlatStyle.Popup;
            this.btnInit.Location = new System.Drawing.Point(165, 429);
            this.btnInit.Name = "btnInit";
            this.btnInit.Size = new System.Drawing.Size(72, 23);
            this.btnInit.TabIndex = 6;
            this.btnInit.Text = "初始化";
            // 
            // textBox8
            // 
            this.textBox8.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
            this.textBox8.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(255)))), ((int)(((byte)(128)))), ((int)(((byte)(0)))));
            this.textBox8.Location = new System.Drawing.Point(12, 432);
            this.textBox8.Name = "textBox8";
            this.textBox8.Size = new System.Drawing.Size(136, 21);
            this.textBox8.TabIndex = 7;
            // 
            // labLocalAddr
            // 
            this.labLocalAddr.Location = new System.Drawing.Point(10, 397);
            this.labLocalAddr.Name = "labLocalAddr";
            this.labLocalAddr.Size = new System.Drawing.Size(100, 16);
            this.labLocalAddr.TabIndex = 8;
            this.labLocalAddr.Text = "本机地址设置：";
            // 
            // btnShut
            // 
            this.btnShut.FlatStyle = System.Windows.Forms.FlatStyle.Popup;
            this.btnShut.Location = new System.Drawing.Point(12, 489);
            this.btnShut.Name = "btnShut";
            this.btnShut.Size = new System.Drawing.Size(64, 23);
            this.btnShut.TabIndex = 9;
            this.btnShut.Text = "关闭串口";
            this.btnShut.Click += new System.EventHandler(this.btnShut_Click);
            // 
            // Form1
            // 
            this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
            this.ClientSize = new System.Drawing.Size(512, 533);
            this.Controls.Add(this.btnShut);
            this.Controls.Add(this.textBox8);
            this.Controls.Add(this.labLocalAddr);
            this.Controls.Add(this.btnInit);
            this.Controls.Add(this.grpBoxPara);
            this.Controls.Add(this.btnSend);
            this.Controls.Add(this.t_send);
            this.Controls.Add(this.msg);
            this.Controls.Add(this.labDataPkg);
            this.Controls.Add(this.btnClear);
            this.Name = "Form1";
            this.Text = "串口通讯PC端";
            this.Closing += new System.ComponentModel.CancelEventHandler(this.Form1_Closing);
            this.Load += new System.EventHandler(this.Form1_Load);
            this.grpBoxPara.ResumeLayout(false);
            this.grpBoxPara.PerformLayout();
            this.ResumeLayout(false);
            this.PerformLayout();

        }
        #endregion

        /// <summary>
        /// 应用程序的主入口点。
        /// </summary>
        [STAThread]
        static void Main()
        {
            Application.Run(new Form1());
        }
        //程序开启，串口初始化
        private void Form1_Load(object sender, System.EventArgs e)
        {
            PCSerialCom1.PortNum = iPort;
            PCSerialCom1.BaudRate = iRate;
            PCSerialCom1.ByteSize = bSize;
            PCSerialCom1.Parity = bParity;
            PCSerialCom1.StopBits = bStopBits;
            PCSerialCom1.ReadTimeout = iTimeout;
            if (this.OpenCom())
                msg.AppendText("串口初始化成功……\r\n");
            else
                msg.AppendText("串口初始化失败！\r\n");
        }
        //显示包信息
        public string dis_package(byte[] reb)
        {
            string temp = "";
            foreach (byte b in reb)
                temp += b.ToString("X2") + " ";
            return temp;
        }
        //开串口
        public bool OpenCom()
        {
            try
            {
                if (PCSerialCom1.Opened)
                {
                    PCSerialCom1.Close();
                    PCSerialCom1.Open(); //打开串口
                }
                else
                {
                    PCSerialCom1.Open();//打开串口
                }
                return true;
            }
            catch (Exception e)
            {
                MessageBox.Show("错误：" + e.Message);
                return false;
            }

        }
        //发送按钮
        private void btnSend_Click(object sender, System.EventArgs e)
        {
            if (t_send.Text == "")
            { MessageBox.Show("发送数据为空！"); return; }
            byte[] temp1 = mysendb();
            int sendnumb = 0;
            try
            {
                sendnumb = PCSerialCom1.Write(temp1);
                msg.AppendText("\r\n发送数据(" + sendnumb + ")：" + dis_package(temp1));
                recb = PCSerialCom1.Read(50);
                //if(recb.Length!=0)
                msg.AppendText("\r\n接收到数据包：" + dis_package(recb));
            }
            catch
            { msg.AppendText("\r\n发送失败！"); return; }

            //OpenCom();
        }
        //去掉发送数组中的空格
        public string delspace(string putin)
        {
            string putout = "";
            for (int i = 0; i < putin.Length; i++)
            {
                if (putin[i] != ' ')
                    putout += putin[i];
            }
            return putout;
        }
        //提取数据包
        public byte[] mysendb()
        {
            string temps = delspace(t_send.Text);
            byte[] tempb = new byte[50];
            int j = 0;
            for (int i = 0; i < temps.Length; i = i + 2, j++)
                tempb[j] = Convert.ToByte(temps.Substring(i, 2), 16);
            byte[] send = new byte[j];
            Array.Copy(tempb, send, j);
            return send;
        }
        //清空按钮
        private void btnClear_Click(object sender, System.EventArgs e)
        {
            t_send.Text = string.Empty;
            msg.Text = string.Empty;
        }

        //参数设置
        private void btnApply_Click(object sender, System.EventArgs e)
        {
            PCSerialCom1.PortNum = Convert.ToInt16(t_port.Text); //1,2,3,4
            PCSerialCom1.BaudRate = Convert.ToInt16(t_rate.Text); //1200,2400,4800,9600
            PCSerialCom1.ByteSize = Convert.ToByte(t_bytesize.Text, 10); //8 bits
            PCSerialCom1.Parity = Convert.ToByte(t_parity.Text, 10); // 0-4=no,odd,even,mark,space
            PCSerialCom1.StopBits = Convert.ToByte(t_stopbyte.Text, 10); // 0,1,2 = 1, 1.5, 2 
            //iTimeout=3;
            if (this.OpenCom())
                msg.AppendText("串口初始化成功……\r\n");
            else
                msg.AppendText("串口初始化失败！\r\n");
        }
        //程序关闭，结束串口
        private void Form1_Closing(object sender, System.ComponentModel.CancelEventArgs e)
        {
            PCSerialCom1.Close();
        }

        private void btnShut_Click(object sender, System.EventArgs e)
        {
            if (PCSerialCom1.Opened)
            {
                PCSerialCom1.Close();
                btnShut.Text = "开启串口";
                msg.AppendText("\r\n串口被关闭……");
            }
            else
            {
                PCSerialCom1.Open();
                btnShut.Text = "关闭串口";
                msg.AppendText("\r\n串口成功开启……");
            }
        }
    }
}