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

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace PCSerialCom
{
    /// <summary>
    /// Form1 的摘要说明。
    /// </summary>
    public partial class Form1 : System.Windows.Forms.Form
    {
        private System.Windows.Forms.Label labPort;
        private System.Windows.Forms.Label labDataPkg;
        private System.Windows.Forms.Button btnSend;
        private System.Windows.Forms.GroupBox grpBoxPara;
        private System.Windows.Forms.Label labBaudrate;
        private System.Windows.Forms.Label labDatabit;
        private System.Windows.Forms.Label labStopbit;
        private System.Windows.Forms.Label labParitybit;
        private System.Windows.Forms.Button btnApply;
        private System.Windows.Forms.Button btnClear;
        private System.Windows.Forms.Button btnInit;
        private System.Windows.Forms.TextBox textBox8;
        private System.Windows.Forms.Label labLocalAddr;

        public int iPort = 1; //1,2,3,4
        public int iRate = 9600; //1200,2400,4800,9600
        public byte bSize = 8; //8 bits
        public byte bParity = 0; // 0-4=no,odd,even,mark,space 
        public byte bStopBits = 1; // 0,1,2 = 1, 1.5, 2 
        public int iTimeout = 1000;
        public PCSerialCom PCSerialCom1 = new PCSerialCom();
        public byte[] recb;

        private System.Windows.Forms.TextBox msg;
        private System.Windows.Forms.TextBox t_port;
        private System.Windows.Forms.TextBox t_rate;
        private System.Windows.Forms.TextBox t_bytesize;
        private System.Windows.Forms.TextBox t_stopbyte;
        private System.Windows.Forms.TextBox t_parity;
        private System.Windows.Forms.TextBox t_send;
        private System.Windows.Forms.Button btnShut; //readTimeOut
        /// <summary>
        /// 必需的设计器变量。
        /// </summary>
        private System.ComponentModel.Container components = null;

        public Form1()
        {
            InitializeComponent();
        }

        /// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        protected override void Dispose(bool disposing)
        {
            if (disposing)
            {
                if (components != null)
                {
                    components.Dispose();
                }
            }
            base.Dispose(disposing);
        }

        #region Windows 窗体设计器生成的代码
        /// <summary>
        /// 设计器支持所需的方法 - 不要使用代码编辑器修改
        /// 此方法的内容。
        /// </summary>
        private void InitializeComponent()
        {
            this.msg = new System.Windows.Forms.TextBox();
            this.labPort = new System.Windows.Forms.Label();
            this.labDataPkg = new System.Windows.Forms.Label();
            this.t_send = new System.Windows.Forms.TextBox();
            this.btnSend = new System.Windows.Forms.Button();
            this.grpBoxPara = new System.Windows.Forms.GroupBox();
            this.btnApply = new System.Windows.Forms.Button();
            this.t_port = new System.Windows.Forms.TextBox();
            this.labBaudrate = new System.Windows.Forms.Label();
            this.t_rate = new System.Windows.Forms.TextBox();
            this.labDatabit = new System.Windows.Forms.Label();
            this.t_bytesize = new System.Windows.Forms.TextBox();
            this.labStopbit = new System.Windows.Forms.Label();
            this.t_stopbyte = new System.Windows.Forms.TextBox();
            this.labParitybit = new System.Windows.Forms.Label();
            this.t_parity = new System.Windows.Forms.TextBox();
            this.btnClear = new System.Windows.Forms.Button();
            this.btnInit = new System.Windows.Forms.Button();
            this.textBox8 = new System.Windows.Forms.TextBox();
            this.labLocalAddr = new System.Windows.Forms.Label();
            this.btnShut = new System.Windows.Forms.Button();
            this.grpBoxPara.SuspendLayout();
            this.SuspendLayout();
            // 
            // msg
            // 
            this.msg.ForeColor = System.Drawing.Color.Green;
            this.msg.Location = new System.Drawing.Point(0, 0);
            this.msg.Multiline = true;
            this.msg.Name = "msg";
            this.msg.ScrollBars = System.Windows.Forms.ScrollBars.Vertical;
            this.msg.Size = new System.Drawing.Size(512, 264);
            this.msg.TabIndex = 0;
            // 
            // labPort
            // 
            this.labPort.Location = new System.Drawing.Point(16, 24);
            this.labPort.Name = "labPort";
            this.labPort.Size = new System.Drawing.Size(56, 16);
            this.labPort.TabIndex = 1;
            this.labPort.Text = "端口号：";
            // 
            // labDataPkg
            // 
            this.labDataPkg.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(192)))), ((int)(((byte)(64)))), ((int)(((byte)(0)))));
            this.labDataPkg.Location = new System.Drawing.Point(8, 323);
            this.labDataPkg.Name = "labDataPkg";
            this.labDataPkg.Size = new System.Drawing.Size(80, 16);
            this.labDataPkg.TabIndex = 1;
            this.labDataPkg.Text = "数据包设置：";
            // 
            // t_send
            // 
            this.t_send.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
            this.t_send.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(255)))), ((int)(((byte)(128)))), ((int)(((byte)(0)))));
            this.t_send.Location = new System.Drawing.Point(10, 348);
            this.t_send.Name = "t_send";
            this.t_send.Size = new System.Drawing.Size(138, 21);
            this.t_send.TabIndex = 2;
            // 
            // btnSend
            // 
            this.btnSend.Location = new System.Drawing.Point(177, 349);
            this.btnSend.Name = "btnSend";
            this.btnSend.Size = new System.Drawing.Size(40, 23);
            this.btnSend.TabIndex = 3;
            this.btnSend.Text = "发送";
            this.btnSend.Click += new System.EventHandler(this.btnSend_Click);
            // 
            // grpBoxPara
            // 
            this.grpBoxPara.Controls.Add(this.btnApply);
            this.grpBoxPara.Controls.Add(this.t_port);
            this.grpBoxPara.Controls.Add(this.labPort);
            this.grpBoxPara.Controls.Add(this.labBaudrate);
            this.grpBoxPara.Controls.Add(this.t_rate);
            this.grpBoxPara.Controls.Add(this.labDatabit);
            this.grpBoxPara.Controls.Add(this.t_bytesize);
            this.grpBoxPara.Controls.Add(this.labStopbit);
            this.grpBoxPara.Controls.Add(this.t_stopbyte);
            this.grpBoxPara.Controls.Add(this.labParitybit);
            this.grpBoxPara.Controls.Add(this.t_parity);
            this.grpBoxPara.ForeColor = System.Drawing.Color.FromArgb(((int)(((byte)(192)))), ((int)(((byte)(64)))), ((int)(((byte)(0)))));
            this.grpBoxPara.Location = new System.Drawing.Point(305, 289);
            this.grpBoxPara.Name = "grpBoxPara";
            this.grpBoxPara.Size = new System.Drawing.Size(176, 223);
            this.grpBoxPara.TabIndex = 4;
            this.grpBoxPara.TabStop = false;
            this.grpBoxPara.Text = "参数设置";
            // 
            // btnApply
            // 
            this.btnApply.FlatStyle = System.Windows.Forms.FlatStyle.Popup;
            this.btnApply.Location = new System.Drawing.Point(45, 194);
            this.btnApply.Name = "btnApply";
            this.btnApply.Size = new System.Drawing.Size(75, 23);
            this.btnApply.TabIndex = 3;
            this.btnApply.Text = "应用";
            this.btnApply.Click += new System.EventHandler(this.btnApply_Click);
            // 
            // t_port
            // 
            this.t_port.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
            this.t_port.Location = new System.Drawing.Point(80, 16);
            this.t_port.Name = "t_port";
            this.t_port.Size = new System.Drawing.Size(80, 21);
            this.t_port.TabIndex = 2;
            this.t_port.Text = "1";
            // 
            // labBaudrate
            // 
            this.labBaudrate.Location = new System.Drawing.Point(16, 58);
            this.labBaudrate.Name = "labBaudrate";
            this.labBaudrate.Size = new System.Drawing.Size(56, 16);
            this.labBaudrate.TabIndex = 1;
            this.labBaudrate.Text = "波特率：";
            // 
            // t_rate
            // 
            this.t_rate.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
            this.t_rate.Location = new System.Drawing.Point(80, 50);
            this.t_rate.Name = "t_rate";
            this.t_rate.Size = new System.Drawing.Size(80, 21);
            this.t_rate.TabIndex = 2;
            this.t_rate.Text = "9600";
            // 
            // labDatabit
            // 
            this.labDatabit.Location = new System.Drawing.Point(16, 92);
            this.labDatabit.Name = "labDatabit";
            this.labDatabit.Size = new System.Drawing.Size(56, 16);
            this.labDatabit.TabIndex = 1;
            this.labDatabit.Text = "数据位：";
            // 
            // t_bytesize
            // 
            this.t_bytesize.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
            this.t_bytesize.Location = new System.Drawing.Point(80, 84);
            this.t_bytesize.Name = "t_bytesize";
            this.t_bytesize.Size = new System.Drawing.Size(80, 21);
            this.t_bytesize.TabIndex = 2;
            this.t_bytesize.Text = "8";
            // 
            // labStopbit
            // 
            this.labStopbit.Location = new System.Drawing.Point(18, 123);
            this.labStopbit.Name = "labStopbit";
            this.labStopbit.Size = new System.Drawing.Size(56, 16);
            this.labStopbit.TabIndex = 1;
            this.labStopbit.Text = "停止位：";
            // 
            // t_stopbyte
            // 
            this.t_stopbyte.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
            this.t_stopbyte.Location = new System.Drawing.Point(80, 118);
            this.t_stopbyte.Name = "t_stopbyte";