SerialTool.cs
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/********************************************************************************
** 类名称： CpuTool
** 描述 ： 用于串口操作的处理类
** 作者 ： 丁书杰
** 创建时间：2019/03/26
** 版权所有 (C) :中科视语（北京）科技有限公司
*********************************************************************************/
using System;
using System.Collections.Generic;
using System.IO.Ports;
namespace OS.Spin.Common.Machine
{
public class SerialTool
{
SerialPort _serialPort = null;
//定义委托
public delegate void SerialPortDataReceiveEventArgs(object sender, SerialDataReceivedEventArgs e, byte[] bits);
//定义接收数据事件
public event SerialPortDataReceiveEventArgs DataReceived;
//默认构造函数1，操作COM1，速度为9600，没有奇偶校验，8位字节，停止位为1
public SerialTool()
{
_serialPort = new SerialPort("COM1", 9600, Parity.None, 8, StopBits.One);
setSerialPort();
}
// 构造函数2
public SerialTool(string comPortName)
{
_serialPort = new SerialPort(comPortName);
setSerialPort();
}
// 构造函数3,可以自定义串口的初始化参数
// </summary>
// <param name="comPortName">需要操作的COM口名称</param>
// <param name="baudRate">COM的速度</param>
// <param name="parity">奇偶校验位</param>
// <param name="dataBits">数据长度</param>
// <param name="stopBits">停止位</param>
public SerialTool(string comPortName, int baudRate, Parity parity, int dataBits, StopBits stopBits)
{
_serialPort = new SerialPort(comPortName, baudRate, parity, dataBits, stopBits);
setSerialPort();
}
// 设置串口资源,还需重载多个设置串口的函数
private void setSerialPort()
{
if (_serialPort != null)
{
//设置触发DataReceived事件的字节数为1
_serialPort.ReceivedBytesThreshold = 1;
//接收到一个字节时，也会触发DataReceived事件
_serialPort.DataReceived += new SerialDataReceivedEventHandler(_serialPort_DataReceived);
//接收数据出错,触发事件
_serialPort.ErrorReceived += new SerialErrorReceivedEventHandler(_serialPort_ErrorReceived);
//打开串口
openPort();
}
}
//打开串口资源
private bool openPort()
{
bool ok = false;
//如果串口是打开的，先关闭
if (_serialPort.IsOpen)
_serialPort.Close();
try
{
//打开串口
_serialPort.Open();
ok = true;
}
catch (Exception Ex)
{
LogisTrac.WriteLog(string.Format("openPort:{0}", Ex.Message));
}
return ok;
}
// 关闭串口资源,操作完成后,一定要关闭串口
public void closePort()
{
//如果串口处于打开状态,则关闭
if (_serialPort.IsOpen)
_serialPort.Close();
}
// 接收串口数据事件
void _serialPort_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
if (DataReceived != null)
{
byte[] _data = new byte[_serialPort.BytesToRead];
_serialPort.Read(_data, 0, _data.Length);
DataReceived(sender, e, _data);
}
}
// 接收数据出错事件
void _serialPort_ErrorReceived(object sender, SerialErrorReceivedEventArgs e)
{
}
public void writeData(string dataStr)
{
//发送数据,并加加车符
_serialPort.Write(dataStr + "\r");
}
// 获取所有已连接短信猫设备的串口
public string[] serialsIsConnected()
{
List<string> lists = new List<string>();
string[] seriallist = getSerials();
foreach (string s in seriallist)
{
}
return lists.ToArray();
}
/// <summary>
/// 获得当前电脑上的所有串口资源
/// </summary>
/// <returns>串口资源List</returns>
public string[] getSerials()
{
return SerialPort.GetPortNames();
}
/// <summary>
/// 把字节型转换成十六进制字符串
/// </summary>
/// <param name="InBytes">字节数组</param>
/// <returns>十六进制的字符串</returns>
public static string ByteToString(byte[] InBytes)
{
string StringOut = "";
foreach (byte InByte in InBytes)
{
StringOut = StringOut + String.Format("{0:X2} ", InByte);
}
return StringOut;
}
/// <summary>
/// 把十六进制字符串转换成字节型
/// </summary>
/// <param name="InString">十六进制的字符串</param>
/// <returns>字节数组</returns>
public static byte[] StringToByte(string InString)
{
string[] ByteStrings;
ByteStrings = InString.Split(" ".ToCharArray());
byte[] ByteOut;
ByteOut = new byte[ByteStrings.Length - 1];
for (int i = 0; i == ByteStrings.Length - 1; i++)
{
ByteOut[i] = Convert.ToByte(("0x" + ByteStrings[i]));
}
return ByteOut;
}
}
}