mainfrm.cs

Microsoft .net Framework Compact 下串口通讯范例

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

namespace RFConfigTool
{
    public partial class MainFrm : Form
    {
        private string  PortName = "COM1";

        public MainFrm()
        {
            InitializeComponent();
        }


        /// <summary>
        /// MAC地址校验
        /// </summary>
        /// <returns></returns>
        private bool MacValidate()
        {
            if (isEmptyString(this.tbMacAddr.Text.Trim()))
            {

                MessageBox.Show("地址不能为空！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Asterisk, MessageBoxDefaultButton.Button1);

                this.tbMacAddr.Focus();

                return false;
            }

            if (this.tbMacAddr.Text.Trim().Length != 6)
            {

                MessageBox.Show("地址必须是16进制字符串！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Asterisk, MessageBoxDefaultButton.Button1);


                this.tbMacAddr.Focus();

                return false;
            }

            uint macAddr;

            try
            {
                macAddr = Convert.ToUInt32(this.tbMacAddr.Text.Trim(), 16);
            }
            catch (FormatException err)
            {

                MessageBox.Show("地址必须是16进制字符串！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Asterisk, MessageBoxDefaultButton.Button1);


                this.tbMacAddr.Focus();

                return false;
            }


            return true;
        }

        /// <summary>
        /// 域名信息校验
        /// </summary>
        /// <returns></returns>
        private bool DomainValidate()
        {
            if (isEmptyString(this.tbDomain.Text.Trim()))
            {
                MessageBox.Show("域名不能为空！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Asterisk, MessageBoxDefaultButton.Button1);

                this.tbDomain.Focus();

                return false;
            }

            if (isEmptyString(this.tbPort.Text))
            {
                MessageBox.Show("端口不能为空！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Asterisk, MessageBoxDefaultButton.Button1);

                this.tbPort.Focus();

                return false;
            }


            if (!NumberUtil.IsNonZeroPositiveInteger(this.tbPort.Text.Trim()))
            {
                MessageBox.Show("端口必需是数字！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Asterisk, MessageBoxDefaultButton.Button1);

                this.tbPort.Focus();

                return false;
            }


            return true;
        }


        /// <summary>
        /// 将三个字节的小尾数据转换成一个uint地址
        /// </summary>
        /// <param name="value"></param>
        public static uint ToLittleUint(byte[] value, int pos)
        {
            uint macAddr = 0;

            if (value == null || (value.Length - pos) < 3) return macAddr;

            byte[] tmp = new byte[4];

            tmp[0] = value[pos + 2];

            tmp[1] = value[pos + 1];

            tmp[2] = value[pos];

            tmp[3] = 0x00;


            macAddr = BitConverter.ToUInt32(tmp, 0x00);

            return macAddr;

        }

        public static byte[] ToLittleBytes(uint macAddr)
        {
            byte[] value = new byte[3];

            byte[] tmp = BitConverter.GetBytes(macAddr);

            value[0] = tmp[2];

            value[1] = tmp[1];

            value[2] = tmp[0];


            return value;


        }

        /// <summary>
        /// 返回一个整数的１６进制表示，小尾表示方法
        /// </summary>
        /// <param name="value"></param>
        /// <param name="isAddr">如果是转换成Ｍａｃ地址则只取后面的６位</param>
        /// <returns></returns>
        public static string InttoHexString(uint value, bool isAddr)
        {

            try
            {
                byte[] bs = BitConverter.GetBytes(value);


                if (bs == null || bs.Length == 0)
                {
                    return null;
                }

                StringBuilder sb = new StringBuilder(10);

                String s = null;

                for (int i = bs.Length - 1; i >= 0; i--)
                {
                    s = bs[i].ToString("X2");

                    sb.Append(s);
                }

                if (isAddr)
                {
                    return sb.ToString().Substring(2);
                }
                else
                {

                    return sb.ToString();
                }
            }
            catch (Exception e)
            {
                //Console.WriteLine(e.Message);
                return null;
            }
        }


        /// <remarks>判断一个字符串是否是空（null或者“”）</remarks>
        public static bool isEmptyString(string str)
        {
            if (str == null || str == "")
            {
                return true;
            }
            else
            {
                return false;
            }
        }



        /// <summary>
        /// 获取校验和
        /// </summary>
        /// <param name="data"></param>
        /// <param name="start">起始位置</param>
        /// <param name="offset">偏移量</param>
        /// <returns>校验和</returns>
        private byte CS(byte[] data, int start, int offset)
        {

            if (data == null || data.Length < start + offset) return 0x00;

            uint check = 0;

            for (int i = start; i < start + offset; i++)
            {
                check += data[i];
            }

            if (check > 0xff)
            {
                check = check & (uint)0xff;
            }

            return (byte)check;


        }

        private void MainFrm_Load(object sender, EventArgs e)
        {
            this.cbComPort.SelectedIndex = 0;

            this.serialPort1.BaudRate = 2400;

            this.serialPort1.DataBits = 8;

            this.serialPort1.Handshake = Handshake.None;

            this.serialPort1.Parity = Parity.Even;

            this.serialPort1.StopBits = StopBits.One;

            this.serialPort1.ReadTimeout = 10000;

        }

        /// <summary>
        /// 保存端口设置
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btSave_Click(object sender, EventArgs e)
        {
            PortName = string.Format("COM{0}", this.cbComPort.SelectedIndex + 1);
        }

        /// <summary>
        /// 写域名
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void DomainWrite_Click(object sender, EventArgs e)
        {
            if (DomainValidate())
            {
                try
                {
          
                    this.serialPort1.PortName = this.PortName;

                    if (this.serialPort1.IsOpen) this.serialPort1.Close();

                    this.serialPort1.Open();


                    byte[] send = new byte[32];