基本信息
源码名称：C#串口介绍以及简单串口通信程序设计和实现
源码大小：0.16M
文件格式：.zip
开发语言：C#
更新时间：2017-11-11
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源码介绍
/*****************************************************
* ProjectName: BXHSerialPort
* Description:
* ClassName: Class1
* CLRVersion: 4.0.30319.42000
* Author: JiYF
* NameSpace: BXHSerialPort
* MachineName: JIYF_PC
* CreateTime: 2017/3/25 16:46:14
* UpdatedTime: 2017/3/25 16:46:14
*****************************************************/
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.Windows.Forms;
namespace BXHSerialPort
{
public partial class frmSerialPort : Form
{
private SerialPort ComDevice = new SerialPort();
public frmSerialPort()
{
InitializeComponent();
this.init();
}
public void init()
{
btnSend.Enabled = false;
cbbComList.Items.AddRange(SerialPort.GetPortNames());
if (cbbComList.Items.Count > 0)
{
cbbComList.SelectedIndex = 0;
}
cbbBaudRate.SelectedIndex = 5;
cbbDataBits.SelectedIndex = 0;
cbbParity.SelectedIndex = 0;
cbbStopBits.SelectedIndex = 0;
pictureBox1.BackgroundImage = Properties.Resources.red;
ComDevice.DataReceived = new SerialDataReceivedEventHandler(Com_DataReceived);//绑定事件
}
/// <summary>
/// 打开串口
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnOpen_Click(object sender, EventArgs e)
{
if (cbbComList.Items.Count <= 0)
{
MessageBox.Show("没有发现串口,请检查线路！");
return;
}
if (ComDevice.IsOpen == false)
{
ComDevice.PortName = cbbComList.SelectedItem.ToString();
ComDevice.BaudRate = Convert.ToInt32(cbbBaudRate.SelectedItem.ToString());
ComDevice.Parity = (Parity)Convert.ToInt32(cbbParity.SelectedIndex.ToString());
ComDevice.DataBits = Convert.ToInt32(cbbDataBits.SelectedItem.ToString());
ComDevice.StopBits = (StopBits)Convert.ToInt32(cbbStopBits.SelectedItem.ToString());
try
{
ComDevice.Open();
btnSend.Enabled = true;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
btnOpen.Text = "关闭串口";
pictureBox1.BackgroundImage = Properties.Resources.green;
}
else
{
try
{
ComDevice.Close();
btnSend.Enabled = false;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
btnOpen.Text = "打开串口";
pictureBox1.BackgroundImage = Properties.Resources.red;
}
cbbComList.Enabled = !ComDevice.IsOpen;
cbbBaudRate.Enabled = !ComDevice.IsOpen;
cbbParity.Enabled = !ComDevice.IsOpen;
cbbDataBits.Enabled = !ComDevice.IsOpen;
cbbStopBits.Enabled = !ComDevice.IsOpen;
}
/// <summary>
/// 关闭串口
/// </summary>
public void ClearSelf()
{
if (ComDevice.IsOpen)
{
ComDevice.Close();
}
}
/// <summary>
/// 发送数据
/// </summary>
/// <param name="sender"></param>
/// <param name="data"></param>
public bool SendData(byte[] data)
{
if (ComDevice.IsOpen)
{
try
{
ComDevice.Write(data, 0, data.Length);//发送数据
return true;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
else
{
MessageBox.Show("串口未打开", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
return false;
}
/// <summary>
/// 发送数据button事件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnSend_Click(object sender, EventArgs e)
{
byte[] sendData = null;
if (rbtnSendHex.Checked)
{
sendData = strToHexByte(txtSendData.Text.Trim());
}
else if (rbtnSendASCII.Checked)
{
sendData = Encoding.ASCII.GetBytes(txtSendData.Text.Trim());
}
else if (rbtnSendUTF8.Checked)
{
sendData = Encoding.UTF8.GetBytes(txtSendData.Text.Trim());
}
else if (rbtnSendUnicode.Checked)
{
sendData = Encoding.Unicode.GetBytes(txtSendData.Text.Trim());
}
else
{
sendData = Encoding.ASCII.GetBytes(txtSendData.Text.Trim());
}
if (this.SendData(sendData))//发送数据成功计数
{
lblSendCount.Invoke(new MethodInvoker(delegate
{
lblSendCount.Text = (int.Parse(lblSendCount.Text) txtSendData.Text.Length).ToString();
}));
}
else
{
}
}
/// <summary>
/// 字符串转换16进制字节数组
/// </summary>
/// <param name="hexString"></param>
/// <returns></returns>
private byte[] strToHexByte(string hexString)
{
hexString = hexString.Replace(" ", "");
if ((hexString.Length % 2) != 0) hexString = " ";
byte[] returnBytes = new byte[hexString.Length / 2];
for (int i = 0; i < returnBytes.Length; i )
returnBytes[i] = Convert.ToByte(hexString.Substring(i * 2, 2).Replace(" ",""), 16);
return returnBytes;
}
/// <summary>
/// 接收数据
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Com_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
byte[] ReDatas = new byte[ComDevice.BytesToRead];
ComDevice.Read(ReDatas, 0, ReDatas.Length);//读取数据
this.AddData(ReDatas);//输出数据
}
/// <summary>
/// 添加数据
/// </summary>
/// <param name="data">字节数组</param>
public void AddData(byte[] data)
{
if (rbtnHex.Checked)
{
StringBuilder sb = new StringBuilder();
for (int i = 0; i < data.Length; i )
{
sb.AppendFormat("{0:x2}" " ", data[i]);
}
AddContent(sb.ToString().ToUpper());
}
else if (rbtnASCII.Checked)
{
AddContent(new ASCIIEncoding().GetString(data));
}
else if (rbtnUTF8.Checked)
{
AddContent(new UTF8Encoding().GetString(data));
}
else if (rbtnUnicode.Checked)
{
AddContent(new UnicodeEncoding().GetString(data));
}
else
{}
lblRevCount.Invoke(new MethodInvoker(delegate
{
lblRevCount.Text = (int.Parse(lblRevCount.Text) data.Length).ToString();
}));
}
/// <summary>
/// 输入到显示区域
/// </summary>
/// <param name="content"></param>
private void AddContent(string content)
{
this.BeginInvoke(new MethodInvoker(delegate
{
if(chkAutoLine.Checked && txtShowData.Text.Length>0)
{
txtShowData.AppendText("\r\n");
}
txtShowData.AppendText(content);
}));
}
/// <summary>
/// 清空接收区
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnClearRev_Click(object sender, EventArgs e)
{
txtShowData.Clear();
}
/// <summary>
/// 清空发送区
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnClearSend_Click(object sender, EventArgs e)
{
txtSendData.Clear();
}
}
}