c# 串口SerialPort
创建SerialPortFun类
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO.Ports;
using System.Threading;
using LogSpace;
namespace SerialPortSpace
{
public class SerialPortFun
{
/// <summary>
/// 串口及串口缓存数据
/// </summary>
public static List<ComPort> LstComPort = new List<ComPort>();
/// <summary>
/// 是否在进行串口结束操作
/// </summary>
public static bool PortIsCloseing = false;
/// <summary>
/// 初始化串口,并返回当前串口的结构
/// </summary>
/// <param name="Port"></param>
/// <param name="PortNo"></param>
/// <param name="BaudRate"></param>
/// <param name="ReciveData"></param>
public static ComPort InitSerialPort(SerialPort Port, string PortNo, int BaudRate, BagStruct CurBagStruct, string StartStr, string EndStr, string PortNameDesc, string PortRemark)
{
Port.PortName = PortNo;
Port.BaudRate = BaudRate;
Port.DataBits = 8;
Port.Parity = Parity.None;
Port.StopBits = StopBits.One;
Port.NewLine = "\r\n";
Port.WriteTimeout = 5000;
Port.ReadTimeout = 5000;
Port.Handshake = Handshake.None;
Port.ReceivedBytesThreshold = 1;
Port.RtsEnable = true;
Port.DataReceived += Port_DataReceived;//定义接收数据事件
ComPort PortItem = new ComPort();
PortItem.Port = Port;
PortItem.PortRealName = PortNameDesc;
PortItem.PortDesc = PortRemark;
PortItem.PortIsRcving = false;
PortItem.LastRebackTime = DateTime.Now;
PortItem.RcvBag = CurBagStruct;
PortItem.StartStr = StartStr;
PortItem.EndStr = EndStr;
PortItem.SendOrder = new List<string>();
PortItem.RcvData = string.Empty;
PortItem.RcvLst = new List<PortReciveDataItem>();
if (LstComPort.Count(c => c.Port == Port) > 0)
{
LstComPort.RemoveAll(c => c.Port == Port);
}
LstComPort.Add(PortItem);
return PortItem;
}
/// <summary>
/// 定义数据包中每项的开始位置及所占字节数
/// </summary>
/// <param name="StartPosition"></param>
/// <param name="Length"></param>
/// <returns></returns>
public static BagItemPosition SetBagItemPosition(int StartPosition, int Length)
{
BagItemPosition Item = new BagItemPosition();
Item.StartPosition = StartPosition;
Item.Length = Length;
return Item;
}
/// <summary>
/// 定义返回数据包结构
/// </summary>
/// <param name="ByteOrder">字节顺序约定 0--高字节在前，低字节在后，1--高字节在后，低字节在前</param>
/// <param name="HeadItem">包头所占字节数</param>
/// <param name="HeadItem">命令所占字节数</param>
/// <param name="OthItem">其他位总共占字节数</param>
/// <param name="DataLenItem">数据长度位所占字节数</param>
/// <param name="VerItem">校验位所占字节数</param>
/// <param name="EndItem">包尾所占字节数</param>
/// <returns></returns>
public static BagStruct SetBagStruct(int ByteOrder, BagItemPosition HeadItem, BagItemPosition CmdItem, BagItemPosition OthItem, BagItemPosition DataLenItem, int RealDataItem, int VerItem, int EndItem)
{
BagStruct CurRcvBagStruct = new BagStruct();
CurRcvBagStruct.ByteOrder = ByteOrder;
CurRcvBagStruct.Head = HeadItem;
CurRcvBagStruct.Cmd = CmdItem;
CurRcvBagStruct.Other = OthItem;
CurRcvBagStruct.DataLen = DataLenItem;
CurRcvBagStruct.RealDataPos = RealDataItem;
CurRcvBagStruct.VerifyLen = VerItem;
CurRcvBagStruct.EndLen = EndItem;
return CurRcvBagStruct;
}
/// <summary>
/// 打开串口
/// </summary>
/// <param name="PortName"></param>
public static void OpenSerialPort(SerialPort Port)
{
if (!Port.IsOpen)
{
Port.Open();
}
}
/// <summary>
/// 发送串口数据
/// </summary>
/// <param name="Port"></param>
/// <param name="Data"></param>
public static bool SetPortData(SerialPort Port, string Data)
{
bool CurSendFlag = false;
if (Port.IsOpen)
{
byte[] buf = strToHexByte(Data);
Port.Write(buf, 0, buf.Length);
CurSendFlag = true;
}
return CurSendFlag;
}
#region 接收串口应答包
/// <summary>
/// 接收串口应答包
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
public static void Port_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
if (PortIsCloseing)
{
return;
}
SerialPort port = sender as SerialPort;
DateTime CurTime = DateTime.Now;
string RcvData = string.Empty;
if (LstComPort != null)
{
if (LstComPort.Count(c => c.Port.PortName == port.PortName) > 0)
{
ComPort comPort = LstComPort.Find(c => c.Port.PortName == port.PortName);
try
{
Log.WriteLogToLocal(CurTime + "接收前" + comPort.PortRealName + "数据包临时数据：\r\n" + comPort.RcvData + "\r\n------------------------\r\n", "Log\\IBO_LOG", comPort.PortDesc + "_Receive");
RcvData = comPort.RcvData;
comPort.PortIsRcving = true;//正在接收串口数据
StringBuilder CurRcvData = new StringBuilder();
if (port.IsOpen && port.BytesToRead != 0)
{
while (port.BytesToRead != 0)
{
byte[] recvBytes = new byte[port.BytesToRead];
int bytes = port.Read(recvBytes, 0, recvBytes.Length);
if (recvBytes.Length != 0)
{
foreach (byte b in recvBytes)
{
CurRcvData.Append(b.ToString("X2") + " ");
}
}
//Thread.Sleep(20);
}
Log.WriteLogToLocal(CurTime + "接收" + comPort.PortRealName + "原始数据：\r\n" + CurRcvData + "\r\n------------------------\r\n", "Log\\IBO_LOG", comPort.PortDesc + "_Receive");
RcvData += CurRcvData;
CurRcvData.Clear();
//接收到的数据进行处理，并存储在串口对应的接收队列中
//SerialPortFun.DealPortData(comPort, RcvData, CurTime);
SerialPortFun.ConcatFullBag(comPort, comPort.RcvBag, RcvData, CurTime);
comPort.LastRebackTime = CurTime;
}
}
catch (Exception ex)
{
Log.WriteLogToLocal(CurTime + "接收" + comPort.PortRealName + "串口数据(" + RcvData + ")错误：(" + ex.Message+")"+ex.StackTrace + "\r\n", "Log\\IBO_LOG\\ErrorLog", comPort.PortDesc + "_Receive");
}
finally
{
comPort.PortIsRcving = false;//接收串口数据完毕
}
}
}
}
#endregion
/// <summary>
/// 接收到的数据进行处理，并存储在串口对应的接收队列中
/// </summary>
/// <param name="port"></param>
/// <param name="Struct"></param>
/// <param name="CurRcvData"></param>
/// <param name="CurTime"></param>
public static void ConcatFullBag(ComPort port, BagStruct Struct, string CurRcvData, DateTime CurTime)
{
Log.WriteLogToLocal(CurTime + "数据包处理" + port.PortRealName + "原始数据：\r\n" + CurRcvData + "\r\n------------------------\r\n", "Log\\IBO_LOG", port.PortDesc + "_Receive");
string temp = CurRcvData;
while (true)
{
//校验包头，包尾
if (!temp.StartsWith(port.StartStr))
{
int index = temp.IndexOf(port.StartStr);
if (index == -1)
temp = "";
else
temp = temp.Remove(0, index);
}
if (temp.Length > 0)
{
int NoDataBagLen = Struct.Head.Length + Struct.Cmd.Length + Struct.Other.Length + Struct.DataLen.Length + Struct.VerifyLen + Struct.EndLen;
int BagDataLen = 0;
if (temp.Length > (Struct.DataLen.StartPosition * 3 + Struct.DataLen.Length * 3))
{
#region 获取数据包的业务数据长度
BagDataLen = GetBagDataLen(Struct, temp);
//string CurDataLen = "";
//string CurDataLenOrg = temp.Substring(Struct.DataLen.StartPosition * 3, Struct.DataLen.Length * 3);
//if (Struct.ByteOrder == 1)//高字节在后，低字节在前
//{
// CurDataLen = ReverseStr(CurDataLenOrg, 2);
// BagDataLen = Convert.ToInt32(CurDataLen, 16);//16进制
//}
//else
//{
// CurDataLen = CurDataLenOrg;
// BagDataLen = Convert.ToInt32(CurDataLen, 10);//华气特殊 10进制
//}
#endregion
}
if (BagDataLen > 0 && temp.Length / 3 >= NoDataBagLen + BagDataLen)
{
string FullBag = temp.Substring(0, (NoDataBagLen + BagDataLen) * 3);
BagItemContent CurBagItem = new BagItemContent();
CurBagItem.Head = FullBag.Substring(Struct.Head.StartPosition * 3, Struct.Head.Length * 3).Replace(" ", "");
CurBagItem.Cmd = FullBag.Substring(Struct.Cmd.StartPosition * 3, Struct.Cmd.Length * 3).Replace(" ", "");
CurBagItem.Other = FullBag.Substring(Struct.Other.StartPosition * 3, Struct.Other.Length * 3).Replace(" ", "");
CurBagItem.DataLen = FullBag.Substring(Struct.DataLen.StartPosition * 3, Struct.DataLen.Length * 3).Replace(" ", "");
CurBagItem.RealData = FullBag.Substring(Struct.RealDataPos * 3, BagDataLen * 3);
CurBagItem.Verify = FullBag.Substring(FullBag.Length - (Struct.VerifyLen + Struct.EndLen) * 3, Struct.VerifyLen * 3).Replace(" ", "");
CurBagItem.End = FullBag.Substring(FullBag.Length - Struct.EndLen * 3, Struct.EndLen * 3).Replace(" ", "");
if (Struct.ByteOrder == 1)//高字节在后，低字节在前
{
CurBagItem.Head = Struct.Head.Length <= 1 ? CurBagItem.Head : ReverseStr(CurBagItem.Head, 2);
CurBagItem.Cmd = (Struct.Cmd.Length <= 1 ? CurBagItem.Cmd : ReverseStr(CurBagItem.Cmd, 2));
CurBagItem.DataLen = Struct.DataLen.Length <= 1 ? CurBagItem.DataLen : ReverseStr(CurBagItem.DataLen, 2);
//CurBagItem.RealData,CurBagItem.Other需根据具体情况解析暂不反转
//CurBagItem.RealData = RealDataLen <= 1 ? CurBagItem.RealData : ReverseStr(CurBagItem.RealData, 2);
//CurBagItem.Other = Struct.Other.Length <= 1 ? CurBagItem.Other : ReverseStr(CurBagItem.Other, 2);
CurBagItem.Verify = Struct.VerifyLen <= 1 ? CurBagItem.Verify : ReverseStr(CurBagItem.Verify, 2);
CurBagItem.End = Struct.EndLen <= 1 ? CurBagItem.End : ReverseStr(CurBagItem.End, 2);
}
PortReciveDataItem NewItem = new PortReciveDataItem();
NewItem.ReciveTime = CurTime;
NewItem.ReciveDataItem = CurBagItem;
NewItem.ReciveDataStr = FullBag;
port.RcvLst.Add(NewItem);
Log.WriteLogToLocal(CurTime + "加入" + port.PortRealName + "完整数据包：\r\n" + FullBag + "\r\n------------------------\r\n", "Log\\IBO_LOG", port.PortDesc + "_Receive");
temp = temp.Remove(0, FullBag.Length);
if (temp.Length <= 0)
{
port.RcvData = "";
break;
}
// port.RcvData = temp.Substring((NoDataBagLen + BagDataLen) * 3);//剩余字符放入下个数据包
}
else
{
port.RcvData = CurRcvData;//不是完整包，等待完整数据
break;
}
}
else
{
//丢弃不符合的串口数据
port.RcvData = "";
Log.WriteLogToLocal(CurTime + "丢弃" + port.PortRealName + "原始数据：\r\n" + CurRcvData + "\r\n------------------------\r\n", "Log\\IBO_LOG", port.PortDesc + "_Receive");
break;
}
}
}
/// <summary>
/// 获取包长度
/// </summary>
/// <param name="Struct"></param>
/// <param name="AllBagData"></param>
/// <returns></returns>
public static int GetBagDataLen(BagStruct Struct, string AllBagData)
{
int BagDataLen = 0;
string CurDataLen = "";
AllBagData = AllBagData.Replace(" ", "");
string CurDataLenOrg = AllBagData.Substring(Struct.DataLen.StartPosition * 2, Struct.DataLen.Length * 2);
if (Struct.ByteOrder == 1)//高字节在后，低字节在前
{
CurDataLen = ReverseStr(CurDataLenOrg, 2);
BagDataLen = Convert.ToInt32(CurDataLen, 16);//16进制 需改成通用
}
else
{
CurDataLen = CurDataLenOrg;
BagDataLen = Convert.ToInt32(CurDataLen, 10);//华气特殊 10进制
}
return BagDataLen;
}
/// <summary>
/// 校验数据包
/// </summary>
/// <param name="BagStr"></param>
/// <returns></returns>
public static bool CheckBag(string BagHead, string BagEnd, BagStruct Struct, string BagStr, out int RealDataLen)
{
bool IsRight = true;
RealDataLen = 0;
BagStr = BagStr.Replace(" ", "");
//校验包头，包尾
if (!(BagStr.StartsWith(BagHead) && BagStr.EndsWith(BagEnd)))
{
IsRight = IsRight && false;
}
#region 校验包总长度
int CurTotalBagLen = Struct.Head.Length + Struct.Cmd.Length + Struct.Other.Length + Struct.DataLen.Length + Struct.VerifyLen + Struct.EndLen;
if (BagStr.Length < Struct.DataLen.StartPosition + Struct.DataLen.Length)
{
IsRight = IsRight && false;
}
else
{
string CurDataLen = "";
string CurDataLenOrg = BagStr.Substring(Struct.DataLen.StartPosition * 2, Struct.DataLen.Length * 2);
if (Struct.ByteOrder == 1)//高字节在后，低字节在前
{
CurDataLen = ReverseStr(CurDataLenOrg, 2);
//for (int i = Struct.DataLen.Length; i > 0; i--)
//{
// CurDataLen += CurDataLenOrg.Substring((i - 1) * 2, 2);
//}
RealDataLen = Convert.ToInt32(CurDataLen, 16);
}
else
{
CurDataLen = CurDataLenOrg;
RealDataLen = Convert.ToInt32(CurDataLen, 10);//华气特殊
}
CurTotalBagLen += RealDataLen;
if (BagStr.Length / 2 != CurTotalBagLen)
{
IsRight = IsRight && false;
}
}
#endregion
return IsRight;
}
/// <summary>
/// 反转字符串
/// </summary>
/// <param name="Str"></param>
/// <param name="Len"></param>
/// <returns></returns>
public static string ReverseStr(string Str, int Len)
{
Str = Str.Replace(" ", "");
string NewStr = "";
List<string> ls = new List<string>();
for (int i = 0; i < Str.Length; i += Len)
{
ls.Add(Str.Substring(i, Len)); // 两两截取
}
ls.Reverse();// 两两反转
foreach (string item in ls)
{
NewStr += item;
}
return NewStr;
}
/// <summary>
/// 16进制字符串转字节数组
/// </summary>
/// <param name="hexString"></param>
/// <returns></returns>
public static 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).Trim(), 16);
return returnBytes;
}
}
}
创建数据接收
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO.Ports;
namespace SerialPortSpace
{
/// <summary>
/// 接收数据类
/// </summary>
public class PortReciveDataItem
{
public BagItemContent ReciveDataItem { get; set; }
public DateTime ReciveTime { get; set; }
public string ReciveDataStr { get; set; }
}
/// <summary>
/// 串口缓存数据
/// </summary>
public class ComPort
{
/// <summary>
/// 串口
/// </summary>
public SerialPort Port
{
set;
get;
}
/// <summary>
/// 当前串口名称
/// </summary>
public string PortRealName
{
set;
get;
}
/// <summary>
/// 当前串口描述
/// </summary>
public string PortDesc
{
set;
get;
}
/// <summary>
/// 当前串口是否正在接收数据---关闭串口判断
/// </summary>
public bool PortIsRcving
{
set;
get;
}
/// <summary>
/// 最近返回数据时间
/// </summary>
public DateTime LastRebackTime
{
get;
set;
}
/// <summary>
/// 定义接收包结构
/// </summary>
public BagStruct RcvBag
{
get;
set;
}
/// <summary>
/// 开始字符
/// </summary>
public string StartStr
{
set;
get;
}
/// <summary>
/// 结束字符
/// </summary>
public string EndStr
{
set;
get;
}
/// <summary>
/// 串口发送是指令集合
/// </summary>
public List<string> SendOrder
{
set;
get;
}
/// <summary>
/// 存储不完整包 临时数据
/// </summary>
public string RcvData
{
set;
get;
}
/// <summary>
/// 接收到的串口数据--完整包，临时存放
/// </summary>
public List<PortReciveDataItem> RcvLst
{
set;
get;
}
}
/// <summary>
/// 接收包的结构定义
/// </summary>
public class BagStruct
{
/// <summary>
/// 字节顺序约定 0--高字节在前，低字节在后，1--高字节在后，低字节在前
/// </summary>
public int ByteOrder
{
set;
get;
}
/// <summary>
/// 包头所占字节数
/// </summary>
public BagItemPosition Head
{
set;
get;
}
/// <summary>
/// 命令字段所占字节数
/// </summary>
public BagItemPosition Cmd
{
set;
get;
}
/// <summary>
/// 除实际数据包中数据长度及实际数据以外的其他数据项所占字节数
/// </summary>
public BagItemPosition Other
{
set;
get;
}
/// <summary>
/// 数据字段长度项所占字节数
/// </summary>
public BagItemPosition DataLen
{
set;
get;
}
/// <summary>
/// 实际数据所占字节数---可变的，可以根据实际数据包由DataLen计算所得
/// </summary>
public int RealDataPos//开始位置
{
set;
get;
}
/// <summary>
/// 校验位所占字节数
/// </summary>
public int VerifyLen
{
set;
get;
}
/// <summary>
/// 包尾所占字节数
/// </summary>
public int EndLen
{
set;
get;
}
}
/// <summary>
/// 定义数据包中每项的开始位置及所占字节数
/// </summary>
public class BagItemPosition
{
/// <summary>
/// 开始位置
/// </summary>
public int StartPosition
{
set;
get;
}
/// <summary>
/// 所占字节数
/// </summary>
public int Length
{
set;
get;
}
}
/// <summary>
/// 接收包的结构内容
/// </summary>
public class BagItemContent
{
/// <summary>
/// 包头
/// </summary>
public string Head
{
set;
get;
}
/// <summary>
/// 命令字段
/// </summary>
public string Cmd
{
set;
get;
}
/// <summary>
/// 除实际数据包中数据长度及实际数据以外的其他数据项
/// </summary>
public string Other
{
set;
get;
}
/// <summary>
/// 数据字段长度项
/// </summary>
public string DataLen
{
set;
get;
}
/// <summary>
/// 实际数据
/// </summary>
public string RealData
{
set;
get;
}
/// <summary>
/// 校验位
/// </summary>
public string Verify
{
set;
get;
}
/// <summary>
/// 包尾
/// </summary>
public string End
{
set;
get;
}
}
}
