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SerialPortHelper.cs
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SerialPortHelper.cs
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/*
* 作用:串口通信
* 联系:QQ 100101392
* 来源:https://github.com/snipen/Helper.Core.Library
*
* */
using System;
using System.Collections.Generic;
using System.IO.Ports;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Helper.Core.Library
{
public class SerialPortHelper
{
#region 私有属性常量
private SerialPort serialPort;
private string receivedTranslateType;
private string receivedEncoding;
private Action<string> receivedCallback;
#endregion
#region 构造函数
public SerialPortHelper(string portName, int readTimeOut = -1, bool rtsEnable = true)
{
this.serialPort = new SerialPort(portName);
this.serialPort.RtsEnable = rtsEnable;
this.serialPort.ReadTimeout = readTimeOut;
}
#region 设置串口波特率
public SerialPortHelper SetBaudRate(int baudRate)
{
this.serialPort.BaudRate = baudRate;
return this;
}
#endregion
#region 设置数据位
public SerialPortHelper SetDataBits(int dataBits)
{
this.serialPort.DataBits = dataBits;
return this;
}
#endregion
#region 设置停止位
/// <summary>
/// 设置停止位
/// </summary>
/// <param name="bits"></param>
/// <returns></returns>
public SerialPortHelper SetStopBits(StopBits bits)
{
this.serialPort.StopBits = bits;
return this;
}
/// <summary>
/// 设置停止位
/// </summary>
/// <param name="bits">0:None,1|1.0:One,1.5:OnePointFive,2|2.0:Two</param>
/// <returns></returns>
public SerialPortHelper SetStopBits(string bits)
{
if (bits == "0" || bits == "0.0")
{
return this.SetStopBits(StopBits.None);
}
else if (bits == "1" || bits == "1.0")
{
return this.SetStopBits(StopBits.One);
}
else if (bits == "1.5")
{
return this.SetStopBits(StopBits.OnePointFive);
}
else if (bits == "2" || bits == "2.0")
{
return this.SetStopBits(StopBits.Two);
}
else
{
return this.SetStopBits(StopBits.One);
}
}
#endregion
#region 设置奇偶校验
/// <summary>
/// 设置奇偶校验
/// </summary>
/// <param name="parity"></param>
/// <returns></returns>
public SerialPortHelper SetParity(Parity parity)
{
this.serialPort.Parity = parity;
return this;
}
/// <summary>
/// 设置奇偶校验
/// </summary>
/// <param name="parity">0:None,1:奇校验,2:偶校验</param>
/// <returns></returns>
public SerialPortHelper SetParity(int parity)
{
if (parity == 0)
{
return this.SetParity(Parity.None);
}
else if (parity == 1)
{
return this.SetParity(Parity.Odd);
}
else if (parity == 2)
{
return this.SetParity(Parity.Even);
}
else
{
return this.SetParity(Parity.None);
}
}
#endregion
#endregion
#region 对外公开方法
/// <summary>
/// 接收数据
/// </summary>
/// <param name="translateType">转换格式</param>
/// <param name="callback">接收回调函数</param>
/// <param name="encoding">接收数据编码格式</param>
public void Received(Action<string> callback, string translateType = SerialPortTranslateTypeEnum.Encoding, string encoding = "utf-8")
{
this.receivedTranslateType = translateType;
this.receivedCallback = callback;
this.receivedEncoding = encoding;
this.serialPort.DataReceived += new SerialDataReceivedEventHandler(this.OnDataReceivedHandler);
this.serialPort.Open();
}
/// <summary>
/// 发送数据
/// </summary>
/// <param name="data">数据</param>
/// <param name="sendType">发送类别</param>
/// <param name="encoding">发送数据编码格式</param>
/// <param name="bufferSize">发送包大小</param>
public void Send(string data, string sendType = SerialPortSendTypeEnum.WriteLine, string encoding = "utf-8", int bufferSize = 1024)
{
// 如果串口未打开
if (!this.serialPort.IsOpen) this.serialPort.Open();
if (sendType == SerialPortSendTypeEnum.WriteLine)
{
this.serialPort.WriteLine(data);
}
else if (sendType == SerialPortSendTypeEnum.Write)
{
this.serialPort.Write(data);
}
else
{
byte[] bytes = Encoding.GetEncoding(encoding).GetBytes(data);
if (bytes.Length < bufferSize)
{
this.serialPort.Write(bytes, 0, bytes.Length);
}
else
{
this.Send(bytes, bufferSize);
}
}
}
/// <summary>
/// 发送数据
/// </summary>
/// <param name="data">数据</param>
/// <param name="bufferSize">发送包大小</param>
public void Send(byte[] data, int bufferSize = 1024)
{
// 如果串口未打开
if (!this.serialPort.IsOpen) this.serialPort.Open();
int sendLength = 0;
while (sendLength < data.Length)
{
byte[] sendBytes = null;
if (sendLength + bufferSize > data.Length)
{
sendBytes = new byte[data.Length - sendLength];
Array.Copy(data, sendLength == 0 ? 0 : sendLength - 1, sendBytes, 0, sendBytes.Length);
sendLength = data.Length;
}
else
{
sendBytes = new byte[bufferSize];
Array.Copy(data, sendLength == 0 ? 0 : sendLength - 1, sendBytes, 0, sendBytes.Length);
sendLength += bufferSize;
}
this.serialPort.Write(sendBytes, 0, sendBytes.Length);
}
}
/// <summary>
/// 关闭串口
/// </summary>
public void Close()
{
if (this.serialPort != null && this.serialPort.IsOpen)
{
this.serialPort.Close();
this.serialPort.Dispose();
}
}
#endregion
#region 逻辑处理私有函数
private void OnDataReceivedHandler(object sender, EventArgs e)
{
try
{
byte[] bytes = new byte[this.serialPort.BytesToRead];
this.serialPort.Read(bytes, 0, bytes.Length);
if (receivedTranslateType == SerialPortTranslateTypeEnum.Encoding)
{
if (this.receivedCallback != null) this.receivedCallback(System.Text.Encoding.GetEncoding(this.receivedEncoding).GetString(bytes));
}
else
{
StringBuilder stringBuilder = new StringBuilder();
for (int index = 0; index < bytes.Length; index++)
{
if (receivedTranslateType == SerialPortTranslateTypeEnum.HEX)
{
stringBuilder.Append(bytes[index].ToString("X2"));
if (index != bytes.Length)
{
stringBuilder.Append(" ");
}
}
else
{
stringBuilder.Append((char)bytes[index]);
}
}
if (this.receivedCallback != null) this.receivedCallback(stringBuilder.ToString());
}
}
catch
{
throw;
}
finally
{
// 丢弃接收缓存数据
this.serialPort.DiscardInBuffer();
}
}
#endregion
}
#region 逻辑处理辅助枚举
public class SerialPortTranslateTypeEnum
{
/// <summary>
/// Encoding,utf-8|gb2312
/// </summary>
public const string Encoding = "Encoding";
/// <summary>
/// 十六进制
/// </summary>
public const string HEX = "HEX";
/// <summary>
/// ASCII
/// </summary>
public const string ASCII = "Ascii";
}
public class SerialPortSendTypeEnum
{
/// <summary>
/// 写数据,添加换行符
/// </summary>
public const string WriteLine = "WriteLine";
/// <summary>
/// 写数据
/// </summary>
public const string Write = "Write";
/// <summary>
/// 写数据,按字节
/// </summary>
public const string Bytes = "Bytes";
}
#endregion
}