串口操作类
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO.Ports;
namespace communicationComm
{
/********************************************************************************
//打开串口(打开串口后不能修改端口名,波特率等参数,修改参数要在串口关闭后修改)
*********************************************************************************/
public class ToCom
{
private System.IO.Ports.SerialPort serialPort1 = new SerialPort();
public delegate byte[] getDate(byte[] bts);
private getDate mygetDate;
private string com;
/// <summary>
/// 构造函数
/// </summary>
/// <param name="com"></param>
public ToCom(string com)
{
//初始化通讯所用参数
this.com = com;
serialPort1.PortName = com; //端口号//com1 com2 com3 .... comN
serialPort1.BaudRate = 9600; //比特率
serialPort1.Parity = Parity.None;//奇偶校验
serialPort1.StopBits = StopBits.One;//停止位
serialPort1.ReadTimeout = 1000; //读超时，即在1000内未读到数据就引起超时异常
}
#region 发送接收数据 public void SendMsg(string senStr)
/// <summary>
/// 发送接收数据
/// </summary>
/// <param name="senStr">发送数据的内容</param>
public void SendMsg(string senStr)
{
//打开串口(打开串口后不能修改端口名,波特率等参数,修改参数要在串口关闭后修改)
serialPort1.Open();
byte[] myByte = StringToByte_2(senStr);
//发送数据
serialPort1.Write(myByte, 0, myByte.Length);
//关闭串口
serialPort1.Close();
}
/// <summary>
/// 数据读取
/// </summary>
/// <returns></returns>
public string ReadMsg()
{
//打开串口(打开串口后不能修改端口名,波特率等参数,修改参数要在串口关闭后修改)
serialPort1.Open();
string rd = "null ";
#region 读数据老方法
////------------mothed1----
//int i = serialPort1.ReadBufferSize;
// byte[] data = Convert.FromBase64String(serialPort1.ReadLine());
// rd = Encoding.Unicode.GetString(data);
// // mothed2
//int DataLength = serialPort1.BytesToRead;
//int i = 0;
//StringBuilder sb = new StringBuilder();
//while (i < DataLength)
//{
// byte[] ds = new byte[1024];
// int len = serialPort1.Read(ds, 0, 1024);
// // sb.Append(Encoding.ASCII.GetString(ds, 0, len));
// sb.Append(ByteToString(ds));
// i += len;
//}
// // mothed2
//byte[] data= new byte[serialPort1.BytesToRead];
//int i = serialPort1.Read(data, 0, serialPort1.BytesToRead);
//rd = ByteToString(data);
#endregion
// mothed3 返回所有数据长度数组定义
byte[] data = new byte[serialPort1.BytesToRead];
//数据读取
int i = serialPort1.Read(data, 0, serialPort1.BytesToRead);
//接收后数据转化
rd = ByteToString(data);
//取得数据返回
return rd;
}
// string getdate(byte[])
public void Sp_DataReceived(object sender, System.IO.Ports.SerialDataReceivedEventArgs e)
{
byte[] readBuffer = new byte[serialPort1.ReadBufferSize];
serialPort1.Read(readBuffer, 0, readBuffer.Length);
//this.Invoke(interfaceUpdataHandle, new string[] { Encoding.UTF8.GetString(readBuffer) });
// this.Invoke(interfaceUpdataHandle, new string[] { ToCom.ByteToString(readBuffer) });
string s = ToCom.ByteToString(readBuffer);
}
#endregion
#region public int ReadComm(out Byte[] readBuf, int bufRoom, int HowTime, int ByteTime) 串口读(非阻塞方式读串口，直到串口缓冲区中没有数据
/// <summary>
/// 串口读(非阻塞方式读串口，直到串口缓冲区中没有数据
/// </summary>
/// <param name="readBuf">串口数据缓冲 </param>
/// <param name="bufRoom">串口数据缓冲空间大小 </param>
/// <param name="HowTime">设置串口读放弃时间 </param>
/// <param name="ByteTime">字节间隔最大时间 </param>
/// <returns>串口实际读入数据个数 </returns>
public int ReadComm(out Byte[] readBuf, int bufRoom, int HowTime, int ByteTime)
{
//throw new System.NotImplementedException();
readBuf = new Byte[64];
Array.Clear(readBuf, 0, readBuf.Length);
int nReadLen, nBytelen;
if (serialPort1.IsOpen == false)
return -1;
nBytelen = 0;
serialPort1.ReadTimeout = HowTime;
try
{
readBuf[nBytelen] = (byte)serialPort1.ReadByte();
byte[] bTmp = new byte[1023];
Array.Clear(bTmp, 0, bTmp.Length);
nReadLen = ReadBlock(out bTmp, bufRoom - 1, ByteTime);
if (nReadLen > 0)
{
Array.Copy(bTmp, 0, readBuf, 1, nReadLen);
nBytelen = 1 + nReadLen;
}
else if (nReadLen == 0)
nBytelen = 1;
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
return nBytelen;
}
#endregion
#region public int ReadBlock(out byte[] ReadBuf, int ReadRoom, int ByteTime) 串口同步读(阻塞方式读串口，直到串口缓冲区中没有数据,靠字符间间隔超时确定没有数据)
/// <summary>
/// 串口同步读(阻塞方式读串口，直到串口缓冲区中没有数据,靠字符间间隔超时确定没有数据)
/// </summary>
/// <param name="ReadBuf">串口数据缓冲 </param>
/// <param name="ReadRoom">串口数据缓冲空间大小 </param>
/// <param name="ByteTime">字节间隔最大时间 </param>
/// <returns>从串口实际读入的字节个数 </returns>
public int ReadBlock(out byte[] ReadBuf, int ReadRoom, int ByteTime)
{
//throw new System.NotImplementedException();
ReadBuf = new byte[1024];
Array.Clear(ReadBuf, 0, ReadBuf.Length);
sbyte nBytelen;
//long nByteRead;
if (serialPort1.IsOpen == false)
return 0;
nBytelen = 0;
serialPort1.ReadTimeout = ByteTime;
while (nBytelen < (ReadRoom - 1))
{
try
{
ReadBuf[nBytelen] = (byte)serialPort1.ReadByte();
nBytelen++; // add one
}
catch (Exception ex)
{
throw new Exception(ex.Message);
break;
}
}
ReadBuf[nBytelen] = 0x00;
return nBytelen;
}
#endregion
#region public static string ByteToString(byte[] InBytes) 字符数组转字符串16进制
/// <summary>
/// 字符数组转字符串16进制
/// </summary>
/// <param name="InBytes"> 二进制字节 </param>
/// <returns>类似"01 02 0F" </returns>
public static string ByteToString(byte[] InBytes)
{
string StringOut = "";
foreach (byte InByte in InBytes)
{
StringOut = StringOut + String.Format("{0:X2}", InByte) + " ";
}
return StringOut.Trim();
}
#endregion
#region public static byte[] StringToByte(string InString) strhex 转字节数组
/// <summary>
/// strhex 转字节数组
/// </summary>
/// <param name="InString">类似"01 02 0F" 用空格分开的 </param>
/// <returns> </returns>
public static byte[] StringToByte(string InString)
{
string[] ByteStrings;
ByteStrings = InString.Split(" ".ToCharArray());
byte[] ByteOut;
ByteOut = new byte[ByteStrings.Length];
for (int i = 0; i <= ByteStrings.Length - 1; i++)
{
ByteOut[i] = byte.Parse(ByteStrings[i], System.Globalization.NumberStyles.HexNumber);
}
return ByteOut;
}
#endregion
#region ublic static byte[] StringToByte_2(string InString) strhex 转字节数组
/// <summary>
/// strhex 转字节数组
/// </summary>
/// <param name="InString">类似"01 02 0F" 中间无空格 </param>
/// <returns> </returns>
public static byte[] StringToByte_2(string InString)
{
byte[] ByteOut;
InString = InString.Replace(" ", "");
try
{
string[] ByteStrings = new string[InString.Length / 2];
int j = 0;
for (int i = 0; i < ByteStrings.Length; i++)
{
ByteStrings[i] = InString.Substring(j, 2);
j += 2;
}
ByteOut = new byte[ByteStrings.Length];
for (int i = 0; i <= ByteStrings.Length - 1; i++)
{
ByteOut[i] = byte.Parse(ByteStrings[i], System.Globalization.NumberStyles.HexNumber);
}
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
return ByteOut;
}
#endregion
#region public static string Str_To_0X(string InString) 字符串 转16进制字符串
/// <summary>
/// 字符串 转16进制字符串
/// </summary>
/// <param name="InString">unico </param>
/// <returns>类似“01 0f” </returns>
public static string Str_To_0X(string InString)
{
return ByteToString(UnicodeEncoding.Default.GetBytes(InString));
}
#endregion
}
}
