diff --git a/baseConnection.cpp b/baseConnection.cpp
new file mode 100644
index 0000000..7014443
--- /dev/null
+++ b/baseConnection.cpp
@@ -0,0 +1,30 @@
+
+#include "baseConnection.h"
+
+BaseConnection::BaseConnection(QObject *parent)
+    : QObject{parent}
+{
+
+}
+
+void BaseConnection::setting(QMap<QString, QString> &map)
+{
+    paras = map;
+}
+
+QString BaseConnection::getProtocol()
+{
+    return protocol;
+}
+
+QMap<QString, QString> BaseConnection::getParas()
+{
+    return paras;
+}
+
+QString BaseConnection::getConnectionName()
+{
+    return connectionName;
+}
+
+
diff --git a/baseConnection.h b/baseConnection.h
new file mode 100644
index 0000000..8254334
--- /dev/null
+++ b/baseConnection.h
@@ -0,0 +1,34 @@
+
+#ifndef BASECONNECTION_H
+#define BASECONNECTION_H
+
+
+#include <QObject>
+#include <QMap>
+
+class BaseConnection : public QObject
+{
+    Q_OBJECT
+public:
+    explicit BaseConnection(QObject *parent = nullptr);
+    QString getProtocol();
+    QMap<QString,QString> getParas();
+    QString getConnectionName();
+    virtual void setting(QMap<QString,QString> &map);
+    virtual bool isConnected() = 0;
+    virtual bool open() = 0;
+    virtual bool close() = 0;
+    virtual int sendData(const QByteArray &data) = 0;
+
+signals:
+    void recvDataSignal(const QByteArray &data);
+    void recvUserSendDataSignal(const QByteArray &data);
+    void connectionStatusChangeSignal(bool bconnected);
+
+protected:
+    QString protocol;
+    QMap<QString,QString> paras;
+    QString connectionName;
+};
+
+#endif // BASECONNECTION_H
diff --git a/connectionManager.cpp b/connectionManager.cpp
new file mode 100644
index 0000000..e8f7a7f
--- /dev/null
+++ b/connectionManager.cpp
@@ -0,0 +1,92 @@
+
+#include "connectionManager.h"
+#include <QDebug>
+
+ConnectionManager::ConnectionManager(QObject *parent): QObject{parent}
+{
+
+}
+
+ConnectionManager::~ConnectionManager()
+{
+
+}
+
+void ConnectionManager::insert(std::shared_ptr<BaseConnection> conn)
+{
+    if(conn){
+        bool same = false;
+        for(int i=0;i<connectionVec.size();i++){
+            if(conn==connectionVec[i]){
+                same = true;
+                break;
+            }
+        }
+        if(!same){
+            connectionVec.append(conn);
+            emit connectionAddedSignal(conn);
+        }else{
+            emit connectionChangeSignal(conn);
+        }
+    }
+
+}
+
+void ConnectionManager::remove(int idx)
+{
+    if(idx>=0 && idx<=connectionVec.length()){
+        if(connectionVec[idx]->isConnected()){
+            connectionVec[idx]->close();
+        }
+        QString name = connectionVec[idx]->getConnectionName();
+        connectionVec[idx]->disconnect();
+        std::shared_ptr<BaseConnection> connPtr = connectionVec[idx];
+        connectionVec.remove(idx);
+        emit connectionRemovedSignal(connPtr);
+    }
+}
+
+void ConnectionManager::remove(std::shared_ptr<BaseConnection> conn)
+{
+    int idx = -1;
+    for(int i=0;i<connectionVec.size();i++){
+        if(connectionVec[i] == conn){
+            if(conn->isConnected()){
+                conn->close();
+            }
+            idx = i;
+            break;
+        }
+    }
+    if(idx>=0){
+        QString name = connectionVec[idx]->getConnectionName();
+        connectionVec[idx]->disconnect();
+        connectionVec.remove(idx);
+        emit connectionRemovedSignal(conn);
+    }
+}
+
+int ConnectionManager::getConnectionCounts()
+{
+    return connectionVec.length();
+}
+
+std::shared_ptr<BaseConnection> ConnectionManager::getConnection(int idx)
+{
+    std::shared_ptr<BaseConnection> conn = nullptr;
+    if(idx>=0 && idx<=connectionVec.length()){
+        conn = connectionVec[idx];
+    }
+    return conn;
+}
+
+std::shared_ptr<BaseConnection> ConnectionManager::getConnection(const QString &connectionName)
+{
+    std::shared_ptr<BaseConnection> conn = nullptr;
+    for(int i=0;i<connectionVec.size();i++){
+        if(connectionName==connectionVec[i]->getConnectionName()){
+            conn = connectionVec[i];
+        }
+    }
+    return conn;
+}
diff --git a/connectionManager.h b/connectionManager.h
new file mode 100644
index 0000000..d880599
--- /dev/null
+++ b/connectionManager.h
@@ -0,0 +1,37 @@
+
+#ifndef CONNECTIONMANAGER_H
+#define CONNECTIONMANAGER_H
+
+#include <QObject>
+#include <QVector>
+#include "baseConnection.h"
+#include <memory>
+
+class ConnectionManager:public QObject
+{
+    Q_OBJECT
+public:
+    static ConnectionManager& getInstance()
+    {
+        static ConnectionManager instance;
+        return instance;
+    }
+    void insert(std::shared_ptr<BaseConnection> conn);
+    void remove(int idx);
+    void remove(std::shared_ptr<BaseConnection> conn);
+    int getConnectionCounts();
+    std::shared_ptr<BaseConnection> getConnection(int idx);
+    std::shared_ptr<BaseConnection> getConnection(const QString &connectionName);
+
+signals:
+    void connectionAddedSignal(std::shared_ptr<BaseConnection> connPtr);
+    void connectionRemovedSignal(std::shared_ptr<BaseConnection> connPtr);
+    void connectionChangeSignal(std::shared_ptr<BaseConnection> connPtr);
+
+private:
+    ConnectionManager(QObject *parent = nullptr);
+    ~ConnectionManager();
+    QVector<std::shared_ptr<BaseConnection>> connectionVec;
+};
+
+#endif // CONNECTIONMANAGER_H
diff --git a/connectionSettingWidget.cpp b/connectionSettingWidget.cpp
new file mode 100644
index 0000000..eb19972
--- /dev/null
+++ b/connectionSettingWidget.cpp
@@ -0,0 +1,157 @@
+#include "connectionSettingWidget.h"
+#include "ui_connectionSettingWidget.h"
+#include "connectionManager.h"
+
+#include <QSerialPortInfo>
+#include <QDebug>
+
+ConnectionSettingWidget::ConnectionSettingWidget(QWidget *parent) :
+    QWidget(parent),
+    ui(new Ui::ConnectionSettingWidget)
+{
+    ui->setupUi(this);
+    refreshComList();
+    ui->toolBtnConnectSerial->setText(tr("连接"));
+    ui->toolBtnConnectTcp->setText(tr("连接"));
+    serialConnection = std::make_shared<SerialConnection>();
+}
+
+ConnectionSettingWidget::ConnectionSettingWidget(const QString &proto, QWidget *parent):
+    QWidget(parent),
+    ui(new Ui::ConnectionSettingWidget)
+{
+    ui->setupUi(this);
+    setProtocol(proto);
+    refreshComList();
+    ui->toolBtnConnectSerial->setText(tr("连接"));
+    ui->toolBtnConnectTcp->setText(tr("连接"));
+    serialConnection = std::make_shared<SerialConnection>();
+}
+
+ConnectionSettingWidget::~ConnectionSettingWidget()
+{
+    if(serialConnection->isConnected()){
+        serialConnection->close();
+    }
+    ConnectionManager::getInstance().remove(serialConnection);
+    delete ui;
+}
+
+void ConnectionSettingWidget::setProtocol(const QString &proto)
+{
+    protocol = proto;
+    if(protocol=="TCP"){
+        ui->gpbTcp->setVisible(true);
+        ui->gpbSerial->setVisible(false);
+    }else{
+        ui->gpbTcp->setVisible(false);
+        ui->gpbSerial->setVisible(true);
+    }
+}
+
+void ConnectionSettingWidget::setParam(const QMap<QString, QString> &para)
+{
+    QString proto = para.value("protocol","");
+    if(proto=="SERIAL"){
+        QString serialCom = para.value("serialCom","");
+        QString baud = para.value("baud","");
+        if(serialCom.isEmpty() || baud.isEmpty()){
+            return;
+        }
+        ui->cmbCom->setCurrentText(serialCom);
+        if(ui->cmbCom->currentText()!=serialCom){
+            ui->cmbCom->addItem(serialCom);
+            ui->cmbCom->setCurrentText(serialCom);
+        }
+        ui->cmbBaud->setCurrentText(baud);
+        if(ui->cmbBaud->currentText()!=baud){
+            ui->cmbBaud->addItem(baud);
+            ui->cmbBaud->setCurrentText(baud);
+        }
+    }
+    setProtocol(proto);
+}
+
+bool ConnectionSettingWidget::isConnected()
+{
+    if(protocol=="SERIAL"){
+        return bSerialConnected;
+    }
+    return false;
+}
+
+std::shared_ptr<SerialConnection> ConnectionSettingWidget::getConnection()
+{
+    return serialConnection;
+}
+
+QMap<QString, QString> ConnectionSettingWidget::getParam()
+{
+    QMap<QString,QString> paras;
+    paras["protocol"] = protocol;
+    if(protocol=="SERIAL"){
+        paras["serialCom"] = ui->cmbCom->currentText();
+        paras["baud"] = ui->cmbBaud->currentText();
+    }
+    return paras;
+}
+
+void ConnectionSettingWidget::on_cmbCom_clicked()
+{
+    refreshComList();
+}
+
+void ConnectionSettingWidget::on_toolBtnConnectSerial_clicked()
+{
+    if(!bSerialConnected){
+        if(serialConnection->isConnected()){
+            serialConnection->close();
+        }
+        QMap<QString,QString> paras;
+        paras["serialCom"] = ui->cmbCom->currentText();
+        paras["baud"] = ui->cmbBaud->currentText();
+        serialConnection->setting(paras);
+        bSerialConnected = serialConnection->open();
+        if(bSerialConnected){
+            ui->toolBtnConnectSerial->setText(tr("断开"));
+            ui->toolBtnConnectSerial->setStyleSheet("color:red");
+            ui->cmbCom->setEnabled(false);
+            ui->cmbBaud->setEnabled(false);
+            ConnectionManager::getInstance().insert(serialConnection);
+        }
+    }else{
+        serialConnection->close();
+        bSerialConnected = false;
+        QMap<QString,QString> paras;
+        paras["serialCom"] = "";
+        paras["baud"] = ui->cmbBaud->currentText();
+        serialConnection->setting(paras);
+        ConnectionManager::getInstance().insert(serialConnection);
+        ui->toolBtnConnectSerial->setText(tr("连接"));
+        ui->toolBtnConnectSerial->setStyleSheet("color:green");
+        ui->cmbCom->setEnabled(true);
+        ui->cmbBaud->setEnabled(true);
+    }
+}
+
+void ConnectionSettingWidget::refreshComList()
+{
+    QString currentTxt = ui->cmbCom->currentText();
+    QStringList nameList;
+    foreach(const QSerialPortInfo &info,QSerialPortInfo::availablePorts())
+    {
+        nameList.append(info.portName());
+    }
+    std::sort(nameList.begin(), nameList.end(), [&](QString &s1, QString &s2){
+        if(s1.size()==s2.size()){
+            return s1<s2;
+        }else{
+            return s1.size()<s2.size();
+    } });
+    ui->cmbCom->clear();
+    ui->cmbCom->addItems(nameList);
+    if(!currentTxt.isEmpty()){
+        ui->cmbCom->setCurrentText(currentTxt);
+    }
+}
+
diff --git a/connectionSettingWidget.h b/connectionSettingWidget.h
new file mode 100644
index 0000000..472a213
--- /dev/null
+++ b/connectionSettingWidget.h
@@ -0,0 +1,38 @@
+#ifndef CONNECTIONSETTINGWIDGET_H
+#define CONNECTIONSETTINGWIDGET_H
+
+#include <QWidget>
+#include "serialConnection.h"
+
+namespace Ui {
+class ConnectionSettingWidget;
+}
+
+class ConnectionSettingWidget : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit ConnectionSettingWidget(QWidget *parent = nullptr);
+    explicit ConnectionSettingWidget(const QString &proto,QWidget *parent = nullptr);
+    ~ConnectionSettingWidget();
+    void setProtocol(const QString &proto);
+    void setParam(const QMap<QString,QString> &para);
+    bool isConnected();
+    std::shared_ptr<SerialConnection> getConnection();
+    QMap<QString,QString> getParam();
+signals:
+
+public slots:
+    void on_cmbCom_clicked();
+    void on_toolBtnConnectSerial_clicked();
+
+private:
+    Ui::ConnectionSettingWidget *ui;
+    QString protocol;
+    void refreshComList();
+    bool bSerialConnected = false;
+    std::shared_ptr<SerialConnection> serialConnection;
+};
+
+#endif // CONNECTIONSETTINGWIDGET_H
diff --git a/connectionSettingWidget.ui b/connectionSettingWidget.ui
new file mode 100644
index 0000000..d5f6dcf
--- /dev/null
+++ b/connectionSettingWidget.ui
@@ -0,0 +1,218 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>ConnectionSettingWidget</class>
+ <widget class="QWidget" name="ConnectionSettingWidget">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>272</width>
+    <height>48</height>
+   </rect>
+  </property>
+  <property name="sizePolicy">
+   <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+    <horstretch>0</horstretch>
+    <verstretch>0</verstretch>
+   </sizepolicy>
+  </property>
+  <property name="windowTitle">
+   <string>Form</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <property name="spacing">
+    <number>0</number>
+   </property>
+   <property name="sizeConstraint">
+    <enum>QLayout::SetNoConstraint</enum>
+   </property>
+   <property name="leftMargin">
+    <number>0</number>
+   </property>
+   <property name="topMargin">
+    <number>0</number>
+   </property>
+   <property name="rightMargin">
+    <number>0</number>
+   </property>
+   <property name="bottomMargin">
+    <number>0</number>
+   </property>
+   <item>
+    <widget class="QGroupBox" name="gpbSerial">
+     <property name="styleSheet">
+      <string notr="true">QGroupBox{border:none}</string>
+     </property>
+     <property name="title">
+      <string/>
+     </property>
+     <layout class="QGridLayout" name="gridLayout_2">
+      <property name="leftMargin">
+       <number>0</number>
+      </property>
+      <property name="topMargin">
+       <number>0</number>
+      </property>
+      <property name="rightMargin">
+       <number>0</number>
+      </property>
+      <property name="bottomMargin">
+       <number>0</number>
+      </property>
+      <item row="0" column="1">
+       <widget class="QComboBox" name="cmbBaud">
+        <property name="sizePolicy">
+         <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+          <horstretch>1</horstretch>
+          <verstretch>0</verstretch>
+         </sizepolicy>
+        </property>
+        <property name="editable">
+         <bool>true</bool>
+        </property>
+        <property name="currentIndex">
+         <number>1</number>
+        </property>
+        <item>
+         <property name="text">
+          <string>9600</string>
+         </property>
+        </item>
+        <item>
+         <property name="text">
+          <string>115200</string>
+         </property>
+        </item>
+        <item>
+         <property name="text">
+          <string>230400</string>
+         </property>
+        </item>
+        <item>
+         <property name="text">
+          <string>460800</string>
+         </property>
+        </item>
+        <item>
+         <property name="text">
+          <string>921600</string>
+         </property>
+        </item>
+       </widget>
+      </item>
+      <item row="0" column="0">
+       <widget class="MyComboBox" name="cmbCom">
+        <property name="sizePolicy">
+         <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+          <horstretch>1</horstretch>
+          <verstretch>0</verstretch>
+         </sizepolicy>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="3">
+       <widget class="QToolButton" name="toolBtnConnectSerial">
+        <property name="sizePolicy">
+         <sizepolicy hsizetype="Fixed" vsizetype="Preferred">
+          <horstretch>0</horstretch>
+          <verstretch>0</verstretch>
+         </sizepolicy>
+        </property>
+        <property name="minimumSize">
+         <size>
+          <width>0</width>
+          <height>0</height>
+         </size>
+        </property>
+        <property name="styleSheet">
+         <string notr="true">color:green</string>
+        </property>
+        <property name="text">
+         <string>连接</string>
+        </property>
+        <property name="iconSize">
+         <size>
+          <width>16</width>
+          <height>16</height>
+         </size>
+        </property>
+        <property name="checkable">
+         <bool>false</bool>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item>
+    <widget class="QGroupBox" name="gpbTcp">
+     <property name="styleSheet">
+      <string notr="true">QGroupBox{border:none}</string>
+     </property>
+     <property name="title">
+      <string/>
+     </property>
+     <layout class="QGridLayout" name="gridLayout_3">
+      <property name="leftMargin">
+       <number>0</number>
+      </property>
+      <property name="topMargin">
+       <number>0</number>
+      </property>
+      <property name="rightMargin">
+       <number>0</number>
+      </property>
+      <property name="bottomMargin">
+       <number>0</number>
+      </property>
+      <item row="0" column="0">
+       <widget class="QLineEdit" name="leIP">
+        <property name="sizePolicy">
+         <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+          <horstretch>0</horstretch>
+          <verstretch>0</verstretch>
+         </sizepolicy>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="1">
+       <widget class="QLineEdit" name="lePort">
+        <property name="sizePolicy">
+         <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+          <horstretch>0</horstretch>
+          <verstretch>0</verstretch>
+         </sizepolicy>
+        </property>
+       </widget>
+      </item>
+      <item row="0" column="2">
+       <widget class="QToolButton" name="toolBtnConnectTcp">
+        <property name="sizePolicy">
+         <sizepolicy hsizetype="Fixed" vsizetype="Preferred">
+          <horstretch>0</horstretch>
+          <verstretch>0</verstretch>
+         </sizepolicy>
+        </property>
+        <property name="styleSheet">
+         <string notr="true">color:green</string>
+        </property>
+        <property name="text">
+         <string>连接</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <customwidgets>
+  <customwidget>
+   <class>MyComboBox</class>
+   <extends>QComboBox</extends>
+   <header location="global">myComboBox.h</header>
+  </customwidget>
+ </customwidgets>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/images/add.png b/images/add.png
new file mode 100644
index 0000000..a0e8613
Binary files /dev/null and b/images/add.png differ
diff --git a/images/add_hover.png b/images/add_hover.png
new file mode 100644
index 0000000..196310a
Binary files /dev/null and b/images/add_hover.png differ
diff --git a/img.qrc b/img.qrc
index 09f45bd..4278a53 100644
--- a/img.qrc
+++ b/img.qrc
@@ -1,8 +1,10 @@
-<RCC>
-    <qresource prefix="/images">
-        <file>images/right_arrow_green.png</file>
-        <file>images/left_arrow_green.png</file>
-        <file>images/right_arrow_gray.png</file>
-        <file>images/left_arrow_gray.png</file>
-    </qresource>
-</RCC>
+<RCC>
+    <qresource prefix="/images">
+        <file>images/right_arrow_green.png</file>
+        <file>images/left_arrow_green.png</file>
+        <file>images/right_arrow_gray.png</file>
+        <file>images/left_arrow_gray.png</file>
+        <file>images/add.png</file>
+        <file>images/add_hover.png</file>
+    </qresource>
+</RCC>
diff --git a/main.cpp b/main.cpp
index d871ca9..b2de7ab 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,13 +1,13 @@
-
-#include "mainwindow.h"
-
-#include <QApplication>
-
-
-int main(int argc, char *argv[])
-{
-    QApplication a(argc, argv);
-    MainWindow w;
-    w.show();
-    return a.exec();
-}
+
+#include "mainwindow.h"
+
+#include <QApplication>
+
+
+int main(int argc, char *argv[])
+{
+    QApplication a(argc, argv);
+    MainWindow w;
+    w.show();
+    return a.exec();
+}
diff --git a/mainwindow.cpp b/mainwindow.cpp
index b38b9ce..43faf12 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -1,22 +1,25 @@
-
-#include "mainwindow.h"
-#include "ui_mainwindow.h"
-#include "serialConfigWidget.h"
-
-MainWindow::MainWindow(QWidget *parent)
-    : QMainWindow(parent)
-    , ui(new Ui::MainWindow)
-{
-    ui->setupUi(this);
-    this->setWindowTitle("串口转发工具V1.0");
-
-    QWidget *wdg = new SerialConfigWidget();
-    ui->verticalLayout->addWidget(wdg);
-}
-
-MainWindow::~MainWindow()
-{
-    delete ui;
-}
-
-
+
+#include "mainwindow.h"
+#include "ui_mainwindow.h"
+#include "serialConfigWidget.h"
+#include "mutilSerialConfigWidget.h"
+
+MainWindow::MainWindow(QWidget *parent)
+    : QMainWindow(parent)
+    , ui(new Ui::MainWindow)
+{
+    ui->setupUi(this);
+    this->setWindowTitle("串口转发工具V1.2");
+
+    //QWidget *wdg = new SerialConfigWidget();
+    //ui->verticalLayout->addWidget(wdg);
+    QWidget *wdg = new MutilSerialConfigWidget();
+    ui->verticalLayout->addWidget(wdg);
+}
+
+MainWindow::~MainWindow()
+{
+    delete ui;
+}
+
+
diff --git a/mainwindow.h b/mainwindow.h
index 1cafe77..0d6ffbf 100644
--- a/mainwindow.h
+++ b/mainwindow.h
@@ -1,26 +1,26 @@
-
-#ifndef MAINWINDOW_H
-#define MAINWINDOW_H
-
-#include <QMainWindow>
-
-
-
-QT_BEGIN_NAMESPACE
-namespace Ui { class MainWindow; }
-QT_END_NAMESPACE
-
-class MainWindow : public QMainWindow
-
-{
-    Q_OBJECT
-
-public:
-    MainWindow(QWidget *parent = nullptr);
-    ~MainWindow();
-
-private:
-    Ui::MainWindow *ui;
-};
-
-#endif // MAINWINDOW_H
+
+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include <QMainWindow>
+
+
+
+QT_BEGIN_NAMESPACE
+namespace Ui { class MainWindow; }
+QT_END_NAMESPACE
+
+class MainWindow : public QMainWindow
+
+{
+    Q_OBJECT
+
+public:
+    MainWindow(QWidget *parent = nullptr);
+    ~MainWindow();
+
+private:
+    Ui::MainWindow *ui;
+};
+
+#endif // MAINWINDOW_H
diff --git a/mainwindow.ui b/mainwindow.ui
index 71b774f..18f9947 100644
--- a/mainwindow.ui
+++ b/mainwindow.ui
@@ -1,42 +1,41 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<ui version="4.0">
- <class>MainWindow</class>
- <widget class="QMainWindow" name="MainWindow">
-  <property name="geometry">
-   <rect>
-    <x>0</x>
-    <y>0</y>
-    <width>555</width>
-    <height>500</height>
-   </rect>
-  </property>
-  <property name="windowTitle">
-   <string>MainWindow</string>
-  </property>
-  <widget class="QWidget" name="centralwidget">
-   <layout class="QVBoxLayout" name="verticalLayout_2">
-    <property name="spacing">
-     <number>0</number>
-    </property>
-    <property name="leftMargin">
-     <number>0</number>
-    </property>
-    <property name="topMargin">
-     <number>0</number>
-    </property>
-    <property name="rightMargin">
-     <number>0</number>
-    </property>
-    <property name="bottomMargin">
-     <number>0</number>
-    </property>
-    <item>
-     <layout class="QVBoxLayout" name="verticalLayout"/>
-    </item>
-   </layout>
-  </widget>
-  <widget class="QStatusBar" name="statusBar"/>
- </widget>
- <resources/>
- <connections/>
-</ui>
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>MainWindow</class>
+ <widget class="QMainWindow" name="MainWindow">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>456</width>
+    <height>393</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>MainWindow</string>
+  </property>
+  <widget class="QWidget" name="centralwidget">
+   <layout class="QVBoxLayout" name="verticalLayout_2">
+    <property name="spacing">
+     <number>0</number>
+    </property>
+    <property name="leftMargin">
+     <number>0</number>
+    </property>
+    <property name="topMargin">
+     <number>0</number>
+    </property>
+    <property name="rightMargin">
+     <number>0</number>
+    </property>
+    <property name="bottomMargin">
+     <number>0</number>
+    </property>
+    <item>
+     <layout class="QVBoxLayout" name="verticalLayout"/>
+    </item>
+   </layout>
+  </widget>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/mutilSerialConfigWidget.cpp b/mutilSerialConfigWidget.cpp
new file mode 100644
index 0000000..f7d4e45
--- /dev/null
+++ b/mutilSerialConfigWidget.cpp
@@ -0,0 +1,152 @@
+#include "mutilSerialConfigWidget.h"
+#include "ui_mutilSerialConfigWidget.h"
+#include "serialConnection.h"
+#include <QDateTime>
+#include <QMenu>
+#include <QAction>
+#include <QScrollBar>
+#include <QDebug>
+
+MutilSerialConfigWidget::MutilSerialConfigWidget(QWidget *parent) :
+    QWidget(parent),
+    ui(new Ui::MutilSerialConfigWidget)
+{
+    ui->setupUi(this);
+    on_toolBtnAddLeft_clicked();
+    on_toolBtnAddRight_clicked();
+}
+
+MutilSerialConfigWidget::~MutilSerialConfigWidget()
+{
+    delete ui;
+}
+
+void MutilSerialConfigWidget::receiverDataHandle(const QByteArray &data)
+{
+    QDateTime current = QDateTime::currentDateTime();
+    SerialConnection *conn = qobject_cast<SerialConnection *>(sender());
+    bool left=false,right=false;
+    for(ConnectionSettingWidget* wdg:wdgLeftMap.keys()){
+        if(wdg->getConnection().get()==conn){
+            left = true;
+            break;
+        }
+    }
+    if(!left){
+        for(ConnectionSettingWidget* wdg:wdgRightMap.keys()){
+            if(wdg->getConnection().get()==conn){
+                right = true;
+                break;
+            }
+        }
+    }
+    if(left){
+        for(ConnectionSettingWidget* wdg:wdgRightMap.keys()){
+            SerialConnection *serial = qobject_cast<SerialConnection *>(wdg->getConnection().get());
+            serial->sendData(data);
+        }
+    }else if(right){
+        for(ConnectionSettingWidget* wdg:wdgLeftMap.keys()){
+            SerialConnection *serial = qobject_cast<SerialConnection *>(wdg->getConnection().get());
+            serial->sendData(data);
+        }
+    }
+
+    if(bStop){
+        return;
+    }
+    QString txt;
+    if(!bdisplayHex){
+        txt = QString::fromLocal8Bit(data);
+    }else{
+        foreach (const unsigned char byte, data) {
+            txt += QString("%1").arg(byte,2,16,QChar('0')).toUpper() + " ";
+        }
+    }
+
+    ui->plainTextEdit->appendPlainText(QString("[%1]%2:%3").arg(current.toString("hh:mm:ss.zzz")).arg(conn->getConnectionName()).arg(txt));
+}
+
+void MutilSerialConfigWidget::displayHexHandle()
+{
+    bdisplayHex = true;
+}
+
+void MutilSerialConfigWidget::displayAsciiHandle()
+{
+    bdisplayHex = false;
+}
+
+void MutilSerialConfigWidget::displayClearHandle()
+{
+    ui->plainTextEdit->clear();
+}
+
+void MutilSerialConfigWidget::displayStopHandle()
+{
+    bStop = !bStop;
+    if(!bStop){
+        QScrollBar *vScrollBar = ui->plainTextEdit->verticalScrollBar();
+        vScrollBar->setValue(vScrollBar->maximum());
+    }
+}
+
+void MutilSerialConfigWidget::on_toolBtnAddLeft_clicked()
+{
+    QString protocol = "SERIAL";;
+
+    ConnectionSettingWidget *wdg = new ConnectionSettingWidget(protocol);
+    int row = ui->gridLayoutSerialLeft->rowCount();
+    ui->gridLayoutSerialLeft->addWidget(wdg,row,0);
+    wdgLeftMap[wdg] = QPair<int,int>(row,0);
+    connect(wdg->getConnection().get(),SIGNAL(recvDataSignal(QByteArray)),this,SLOT(receiverDataHandle(QByteArray)),Qt::QueuedConnection);
+}
+
+
+void MutilSerialConfigWidget::on_toolBtnAddRight_clicked()
+{
+    QString protocol = "SERIAL";;
+    ConnectionSettingWidget *wdg = new ConnectionSettingWidget(protocol);
+    int row = ui->gridLayoutSerialRight->rowCount();
+    ui->gridLayoutSerialRight->addWidget(wdg,row,0);
+    wdgRightMap[wdg] = QPair<int,int>(row,0);
+    connect(wdg->getConnection().get(),SIGNAL(recvDataSignal(QByteArray)),this,SLOT(receiverDataHandle(QByteArray)),Qt::QueuedConnection);
+}
+
+
+void MutilSerialConfigWidget::on_plainTextEdit_customContextMenuRequested(const QPoint &pos)
+{
+    //Q_UNUSED(pos);
+    QMenu *menu = new QMenu(this);
+    QAction *displayHex = new QAction(tr("HEX显示"),this);
+    QAction *displayAscii = new QAction(tr("ASCII显示"),this);
+    QAction *displayStop = nullptr;
+    QAction *displayClear = new QAction(tr("清空"),this);
+    if(bdisplayHex){
+        displayHex->setCheckable(true);
+        displayHex->setChecked(true);
+    }else{
+        displayAscii->setCheckable(true);
+        displayAscii->setChecked(true);
+    }
+    if(bStop){
+        displayStop = new QAction(tr("继续"),this);
+    }else{
+        displayStop = new QAction(tr("暂停"),this);
+    }
+
+    menu->addAction(displayHex);
+    menu->addAction(displayAscii);
+    menu->addAction(displayStop);
+    menu->addAction(displayClear);
+
+    connect(displayHex,SIGNAL(triggered(bool)),this,SLOT(displayHexHandle()));
+    connect(displayAscii,SIGNAL(triggered(bool)),this,SLOT(displayAsciiHandle()));
+    connect(displayClear,SIGNAL(triggered(bool)),this,SLOT(displayClearHandle()));
+    connect(displayStop,SIGNAL(triggered(bool)),this,SLOT(displayStopHandle()));
+
+    //让菜单移动鼠标位置并显示
+    //menu->exec(QCursor::pos());
+    menu->exec(ui->plainTextEdit->mapToGlobal(pos));
+}
+
diff --git a/mutilSerialConfigWidget.h b/mutilSerialConfigWidget.h
new file mode 100644
index 0000000..a7d9faf
--- /dev/null
+++ b/mutilSerialConfigWidget.h
@@ -0,0 +1,38 @@
+#ifndef MUTILSERIALCONFIGWIDGET_H
+#define MUTILSERIALCONFIGWIDGET_H
+
+#include <QWidget>
+#include <QMap>
+#include "connectionSettingWidget.h"
+
+namespace Ui {
+class MutilSerialConfigWidget;
+}
+
+class MutilSerialConfigWidget : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit MutilSerialConfigWidget(QWidget *parent = nullptr);
+    ~MutilSerialConfigWidget();
+
+private slots:
+    void receiverDataHandle(const QByteArray &data);
+    void displayHexHandle();
+    void displayAsciiHandle();
+    void displayClearHandle();
+    void displayStopHandle();
+    void on_toolBtnAddLeft_clicked();
+    void on_toolBtnAddRight_clicked();
+    void on_plainTextEdit_customContextMenuRequested(const QPoint &pos);
+
+private:
+    Ui::MutilSerialConfigWidget *ui;
+    QMap<ConnectionSettingWidget*,QPair<int,int>> wdgLeftMap;
+    QMap<ConnectionSettingWidget*,QPair<int,int>> wdgRightMap;
+    bool bdisplayHex=false;
+    bool bStop=false;
+};
+
+#endif // MUTILSERIALCONFIGWIDGET_H
diff --git a/mutilSerialConfigWidget.ui b/mutilSerialConfigWidget.ui
new file mode 100644
index 0000000..3975824
--- /dev/null
+++ b/mutilSerialConfigWidget.ui
@@ -0,0 +1,361 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>MutilSerialConfigWidget</class>
+ <widget class="QWidget" name="MutilSerialConfigWidget">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>617</width>
+    <height>420</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Form</string>
+  </property>
+  <layout class="QGridLayout" name="gridLayout_5" rowstretch="0,1" columnstretch="1,0,1">
+   <item row="0" column="0">
+    <widget class="QGroupBox" name="gpbSerialLeft">
+     <property name="title">
+      <string/>
+     </property>
+     <layout class="QGridLayout" name="gridLayout_3">
+      <item row="0" column="0" rowspan="3">
+       <layout class="QGridLayout" name="gridLayoutSerialLeft"/>
+      </item>
+      <item row="3" column="0">
+       <spacer name="verticalSpacer_3">
+        <property name="orientation">
+         <enum>Qt::Vertical</enum>
+        </property>
+        <property name="sizeType">
+         <enum>QSizePolicy::Expanding</enum>
+        </property>
+        <property name="sizeHint" stdset="0">
+         <size>
+          <width>20</width>
+          <height>0</height>
+         </size>
+        </property>
+       </spacer>
+      </item>
+      <item row="0" column="1" rowspan="4">
+       <widget class="QGroupBox" name="groupBox">
+        <property name="sizePolicy">
+         <sizepolicy hsizetype="Fixed" vsizetype="Preferred">
+          <horstretch>0</horstretch>
+          <verstretch>0</verstretch>
+         </sizepolicy>
+        </property>
+        <property name="styleSheet">
+         <string notr="true">QGroupBox{border:none}</string>
+        </property>
+        <property name="title">
+         <string/>
+        </property>
+        <layout class="QGridLayout" name="gridLayout_2">
+         <property name="leftMargin">
+          <number>0</number>
+         </property>
+         <property name="topMargin">
+          <number>0</number>
+         </property>
+         <property name="rightMargin">
+          <number>0</number>
+         </property>
+         <property name="bottomMargin">
+          <number>0</number>
+         </property>
+         <property name="spacing">
+          <number>0</number>
+         </property>
+         <item row="0" column="0">
+          <widget class="QToolButton" name="toolBtnAddLeft">
+           <property name="cursor">
+            <cursorShape>ArrowCursor</cursorShape>
+           </property>
+           <property name="styleSheet">
+            <string notr="true">QToolButton{
+border:none;
+background:transparent;
+image:url(:/images/images/add.png);
+}
+QToolButton::hover{
+border:none;
+background:transparent;
+image:url(:/images/images/add_hover.png);
+}</string>
+           </property>
+           <property name="text">
+            <string/>
+           </property>
+           <property name="iconSize">
+            <size>
+             <width>16</width>
+             <height>16</height>
+            </size>
+           </property>
+           <property name="toolButtonStyle">
+            <enum>Qt::ToolButtonIconOnly</enum>
+           </property>
+           <property name="autoRaise">
+            <bool>false</bool>
+           </property>
+           <property name="arrowType">
+            <enum>Qt::NoArrow</enum>
+           </property>
+          </widget>
+         </item>
+         <item row="1" column="0">
+          <spacer name="verticalSpacer_5">
+           <property name="orientation">
+            <enum>Qt::Vertical</enum>
+           </property>
+           <property name="sizeHint" stdset="0">
+            <size>
+             <width>20</width>
+             <height>0</height>
+            </size>
+           </property>
+          </spacer>
+         </item>
+        </layout>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item row="0" column="1">
+    <widget class="QGroupBox" name="groupBox_3">
+     <property name="styleSheet">
+      <string notr="true">QGroupBox{border:none}</string>
+     </property>
+     <property name="title">
+      <string/>
+     </property>
+     <property name="flat">
+      <bool>false</bool>
+     </property>
+     <layout class="QVBoxLayout" name="verticalLayout">
+      <property name="spacing">
+       <number>0</number>
+      </property>
+      <item>
+       <spacer name="verticalSpacer">
+        <property name="orientation">
+         <enum>Qt::Vertical</enum>
+        </property>
+        <property name="sizeHint" stdset="0">
+         <size>
+          <width>20</width>
+          <height>0</height>
+         </size>
+        </property>
+       </spacer>
+      </item>
+      <item>
+       <widget class="QLabel" name="lbArrow1">
+        <property name="sizePolicy">
+         <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
+          <horstretch>0</horstretch>
+          <verstretch>0</verstretch>
+         </sizepolicy>
+        </property>
+        <property name="minimumSize">
+         <size>
+          <width>40</width>
+          <height>12</height>
+         </size>
+        </property>
+        <property name="maximumSize">
+         <size>
+          <width>40</width>
+          <height>12</height>
+         </size>
+        </property>
+        <property name="autoFillBackground">
+         <bool>false</bool>
+        </property>
+        <property name="text">
+         <string/>
+        </property>
+        <property name="pixmap">
+         <pixmap resource="img.qrc">:/images/images/left_arrow_gray.png</pixmap>
+        </property>
+        <property name="scaledContents">
+         <bool>true</bool>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QLabel" name="lbArrow2">
+        <property name="sizePolicy">
+         <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
+          <horstretch>0</horstretch>
+          <verstretch>0</verstretch>
+         </sizepolicy>
+        </property>
+        <property name="minimumSize">
+         <size>
+          <width>40</width>
+          <height>12</height>
+         </size>
+        </property>
+        <property name="maximumSize">
+         <size>
+          <width>40</width>
+          <height>12</height>
+         </size>
+        </property>
+        <property name="text">
+         <string/>
+        </property>
+        <property name="pixmap">
+         <pixmap resource="img.qrc">:/images/images/right_arrow_gray.png</pixmap>
+        </property>
+        <property name="scaledContents">
+         <bool>true</bool>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <spacer name="verticalSpacer_2">
+        <property name="orientation">
+         <enum>Qt::Vertical</enum>
+        </property>
+        <property name="sizeHint" stdset="0">
+         <size>
+          <width>20</width>
+          <height>0</height>
+         </size>
+        </property>
+       </spacer>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item row="0" column="2">
+    <widget class="QGroupBox" name="gpbSerialRight">
+     <property name="title">
+      <string/>
+     </property>
+     <layout class="QGridLayout" name="gridLayout">
+      <item row="2" column="0">
+       <spacer name="verticalSpacer_4">
+        <property name="orientation">
+         <enum>Qt::Vertical</enum>
+        </property>
+        <property name="sizeHint" stdset="0">
+         <size>
+          <width>20</width>
+          <height>0</height>
+         </size>
+        </property>
+       </spacer>
+      </item>
+      <item row="0" column="0" rowspan="2">
+       <layout class="QGridLayout" name="gridLayoutSerialRight"/>
+      </item>
+      <item row="0" column="1" rowspan="3">
+       <widget class="QGroupBox" name="groupBox_2">
+        <property name="sizePolicy">
+         <sizepolicy hsizetype="Fixed" vsizetype="Preferred">
+          <horstretch>0</horstretch>
+          <verstretch>0</verstretch>
+         </sizepolicy>
+        </property>
+        <property name="styleSheet">
+         <string notr="true">QGroupBox{border:none}</string>
+        </property>
+        <property name="title">
+         <string/>
+        </property>
+        <layout class="QGridLayout" name="gridLayout_4">
+         <property name="leftMargin">
+          <number>0</number>
+         </property>
+         <property name="topMargin">
+          <number>0</number>
+         </property>
+         <property name="rightMargin">
+          <number>0</number>
+         </property>
+         <property name="bottomMargin">
+          <number>0</number>
+         </property>
+         <property name="spacing">
+          <number>0</number>
+         </property>
+         <item row="0" column="0">
+          <widget class="QToolButton" name="toolBtnAddRight">
+           <property name="cursor">
+            <cursorShape>ArrowCursor</cursorShape>
+           </property>
+           <property name="styleSheet">
+            <string notr="true">QToolButton{
+border:none;
+background:transparent;
+image:url(:/images/images/add.png);
+}
+QToolButton::hover{
+border:none;
+background:transparent;
+image:url(:/images/images/add_hover.png);
+}</string>
+           </property>
+           <property name="text">
+            <string/>
+           </property>
+           <property name="iconSize">
+            <size>
+             <width>16</width>
+             <height>16</height>
+            </size>
+           </property>
+           <property name="toolButtonStyle">
+            <enum>Qt::ToolButtonIconOnly</enum>
+           </property>
+           <property name="autoRaise">
+            <bool>false</bool>
+           </property>
+           <property name="arrowType">
+            <enum>Qt::NoArrow</enum>
+           </property>
+          </widget>
+         </item>
+         <item row="1" column="0">
+          <spacer name="verticalSpacer_6">
+           <property name="orientation">
+            <enum>Qt::Vertical</enum>
+           </property>
+           <property name="sizeHint" stdset="0">
+            <size>
+             <width>20</width>
+             <height>0</height>
+            </size>
+           </property>
+          </spacer>
+         </item>
+        </layout>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item row="1" column="0" colspan="3">
+    <widget class="QPlainTextEdit" name="plainTextEdit">
+     <property name="contextMenuPolicy">
+      <enum>Qt::CustomContextMenu</enum>
+     </property>
+     <property name="maximumBlockCount">
+      <number>100000</number>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources>
+  <include location="img.qrc"/>
+ </resources>
+ <connections/>
+</ui>
diff --git a/myComboBox.cpp b/myComboBox.cpp
new file mode 100644
index 0000000..3d2fc28
--- /dev/null
+++ b/myComboBox.cpp
@@ -0,0 +1,20 @@
+
+#include "myComboBox.h"
+#include <QMouseEvent>
+
+MyComboBox::MyComboBox(QWidget *parent)
+    : QComboBox{parent}
+{
+
+}
+
+void MyComboBox::mousePressEvent(QMouseEvent *event)
+{
+    if(event->button() == Qt::LeftButton)//如果点击左键
+    {
+        emit clicked();//发出clicked信号
+    }
+
+    QComboBox::mousePressEvent(event);//将该事件传给父类处理，这句话很重要，如果没有，父类无法处理本来的点击事件
+}
+
diff --git a/myComboBox.h b/myComboBox.h
new file mode 100644
index 0000000..9dc27f9
--- /dev/null
+++ b/myComboBox.h
@@ -0,0 +1,17 @@
+
+#ifndef MYCOMBOBOX_H
+#define MYCOMBOBOX_H
+
+#include <QComboBox>
+
+class MyComboBox : public QComboBox
+{
+    Q_OBJECT
+public:
+    explicit MyComboBox(QWidget *parent = nullptr);
+    void mousePressEvent(QMouseEvent *event) override;
+signals:
+    void clicked();
+};
+
+#endif // MYCOMBOBOX_H
diff --git a/serialConfigWidget.cpp b/serialConfigWidget.cpp
index 46bc72f..501355f 100644
--- a/serialConfigWidget.cpp
+++ b/serialConfigWidget.cpp
@@ -1,169 +1,168 @@
-#include "serialConfigWidget.h"
-#include "ui_serialConfigWidget.h"
-#include <QSerialPortInfo>
-#include <QMessageBox>
-#include <QByteArray>
-#include <QThread>
-#include <QMutexLocker>
-#include <QDebug>
-
-SerialConfigWidget::SerialConfigWidget(QWidget *parent) :
-    QWidget(parent),
-    ui(new Ui::SerialConfigWidget)
-{
-    ui->setupUi(this);
-    m_SerialPort1.connectReadEvent(this);
-    m_SerialPort2.connectReadEvent(this);
-    refreshCom();
-    connect(this,SIGNAL(displayTextSignal(QString)),this,SLOT(displayText(QString)),Qt::QueuedConnection);
-}
-
-SerialConfigWidget::~SerialConfigWidget()
-{
-    delete ui;
-}
-
-void SerialConfigWidget::refreshCom()
-{
-    QString currentTxt1 = ui->cmbCom1->currentText();
-    QString currentTxt2 = ui->cmbCom2->currentText();
-    QStringList nameList;
-    foreach(const QSerialPortInfo &info,QSerialPortInfo::availablePorts())
-    {
-        nameList.append(info.portName());
-    }
-    std::sort(nameList.begin(), nameList.end(), [&](QString &s1, QString &s2){
-        if(s1.size()==s2.size()){
-            return s1<s2;
-        }else{
-            return s1.size()<s2.size();
-        } });
-    ui->cmbCom1->clear();
-    ui->cmbCom1->addItems(nameList);
-    if(!currentTxt1.isEmpty()){
-        ui->cmbCom1->setCurrentText(currentTxt1);
-    }
-
-    ui->cmbCom2->clear();
-    ui->cmbCom2->addItems(nameList);
-    if(!currentTxt2.isEmpty()){
-        ui->cmbCom2->setCurrentText(currentTxt2);
-    }
-}
-
-void SerialConfigWidget::on_toolBtnRefresh_clicked()
-{
-    refreshCom();
-}
-
-
-void SerialConfigWidget::on_toolBtnOk_clicked()
-{
-    if(ui->toolBtnOk->isChecked()){
-        QString portName1 = ui->cmbCom1->currentText();
-        QString baud1 = ui->cmbBaud1->currentText();
-
-        m_SerialPort1.init(portName1.toStdString().c_str(),baud1.toInt(),
-                           itas109::Parity::ParityNone,itas109::DataBits::DataBits8,
-                           itas109::StopBits::StopOne);
-        m_SerialPort1.setReadIntervalTimeout(readIntervalTimeoutMS);
-        if(!m_SerialPort1.open()){
-            QMessageBox::warning(NULL,tr("警告"),portName1 + tr("打开错误") + QString("\n\ncode: %1\nmessage: %2").arg(
-                m_SerialPort1.getLastError()).arg(m_SerialPort1.getLastErrorMsg()));
-            ui->toolBtnOk->setChecked(false);
-            return ;
-        }
-
-        QString portName2 = ui->cmbCom2->currentText();
-        QString baud2 = ui->cmbBaud2->currentText();
-
-        m_SerialPort2.init(portName2.toStdString().c_str(),baud2.toInt(),
-                           itas109::Parity::ParityNone,itas109::DataBits::DataBits8,
-                           itas109::StopBits::StopOne);
-        m_SerialPort2.setReadIntervalTimeout(readIntervalTimeoutMS);
-        if(!m_SerialPort2.open()){
-            QMessageBox::warning(NULL,tr("警告"),portName2 + tr("打开错误") + QString("\n\ncode: %1\nmessage: %2").arg(
-                m_SerialPort2.getLastError()).arg(m_SerialPort2.getLastErrorMsg()));
-            m_SerialPort1.close();
-            ui->toolBtnOk->setChecked(false);
-            return ;
-        }
-
-        ui->toolBtnOk->setStyleSheet("color:green");
-        ui->cmbCom1->setDisabled(true);
-        ui->cmbBaud1->setDisabled(true);
-        ui->cmbCom2->setDisabled(true);
-        ui->cmbBaud2->setDisabled(true);
-        ui->toolBtnRefresh->setDisabled(true);
-        ui->toolBtnOk->setChecked(true);
-    }else{
-        m_SerialPort1.close();
-        m_SerialPort2.close();
-        ui->toolBtnOk->setStyleSheet("color:balck");
-        ui->cmbCom1->setEnabled(true);
-        ui->cmbBaud1->setEnabled(true);
-        ui->cmbCom2->setEnabled(true);
-        ui->cmbBaud2->setEnabled(true);
-        ui->toolBtnRefresh->setEnabled(true);
-        ui->toolBtnOk->setChecked(false);
-    }
-
-}
-
-void SerialConfigWidget::displayText(const QString &txt)
-{
-    ui->plainTextEdit->appendPlainText(txt.trimmed());
-}
-
-void SerialConfigWidget::onReadEvent(const char *portName, unsigned int readBufferLen)
-{
-    QMutexLocker locker(&mtx);
-    if(portName && std::strcmp(portName,m_SerialPort1.getPortName())==0){
-        int recLen = 0;
-        char * str = NULL;
-        str = new char[readBufferLen];
-        if(str){
-            recLen = m_SerialPort1.readData(str, readBufferLen);
-        }
-
-        if(str && recLen > 0)
-        {
-            // TODO: 中文需要由两个字符拼接，否则显示为空""
-            //QString m_str = QString::fromLocal8Bit(str,recLen);
-            //emitUpdateReceive(m_str);
-            m_SerialPort2.writeData(str,recLen);
-            QString txt = QString("%1:%2").arg(QString::fromLocal8Bit(portName,std::strlen(portName))).arg(QString::fromLocal8Bit(str,recLen));
-            emit displayTextSignal(txt);
-        }
-
-        if(str)
-        {
-            delete[] str;
-            str = NULL;
-        }
-    }else if(portName && std::strcmp(portName,m_SerialPort2.getPortName())==0){
-        int recLen = 0;
-        char * str = NULL;
-        str = new char[readBufferLen];
-        if(str){
-            recLen = m_SerialPort2.readData(str, readBufferLen);
-        }
-
-        if(str && recLen > 0)
-        {
-            // TODO: 中文需要由两个字符拼接，否则显示为空""
-            //QString m_str = QString::fromLocal8Bit(str,recLen);
-            //emitUpdateReceive(m_str);
-            m_SerialPort1.writeData(str,recLen);
-            QString txt = QString("%1:%2").arg(QString::fromLocal8Bit(portName,std::strlen(portName))).arg(QString::fromLocal8Bit(str,recLen));
-            emit displayTextSignal(txt);
-        }
-
-        if(str)
-        {
-            delete[] str;
-            str = NULL;
-        }
-    }
-}
-
+#include "serialConfigWidget.h"
+#include "ui_serialConfigWidget.h"
+#include <QSerialPortInfo>
+#include <QMessageBox>
+#include <QByteArray>
+#include <QThread>
+#include <QMutexLocker>
+#include <QDebug>
+
+SerialConfigWidget::SerialConfigWidget(QWidget *parent) :
+    QWidget(parent),
+    ui(new Ui::SerialConfigWidget)
+{
+    ui->setupUi(this);
+    m_SerialPort1.connectReadEvent(this);
+    m_SerialPort2.connectReadEvent(this);
+    refreshCom();
+    connect(this,SIGNAL(displayTextSignal(QString)),this,SLOT(displayText(QString)),Qt::QueuedConnection);
+}
+
+SerialConfigWidget::~SerialConfigWidget()
+{
+    delete ui;
+}
+
+void SerialConfigWidget::refreshCom()
+{
+    QString currentTxt1 = ui->cmbCom1->currentText();
+    QString currentTxt2 = ui->cmbCom2->currentText();
+    QStringList nameList;
+    foreach(const QSerialPortInfo &info,QSerialPortInfo::availablePorts())
+    {
+        nameList.append(info.portName());
+    }
+    std::sort(nameList.begin(), nameList.end(), [&](QString &s1, QString &s2){
+        if(s1.size()==s2.size()){
+            return s1<s2;
+        }else{
+            return s1.size()<s2.size();
+        } });
+    ui->cmbCom1->clear();
+    ui->cmbCom1->addItems(nameList);
+    if(!currentTxt1.isEmpty()){
+        ui->cmbCom1->setCurrentText(currentTxt1);
+    }
+
+    ui->cmbCom2->clear();
+    ui->cmbCom2->addItems(nameList);
+    if(!currentTxt2.isEmpty()){
+        ui->cmbCom2->setCurrentText(currentTxt2);
+    }
+}
+
+void SerialConfigWidget::on_toolBtnRefresh_clicked()
+{
+    refreshCom();
+}
+
+
+void SerialConfigWidget::on_toolBtnOk_clicked()
+{
+    if(ui->toolBtnOk->isChecked()){
+        QString portName1 = ui->cmbCom1->currentText();
+        QString baud1 = ui->cmbBaud1->currentText();
+
+        m_SerialPort1.init(portName1.toStdString().c_str(),baud1.toInt(),
+                           itas109::Parity::ParityNone,itas109::DataBits::DataBits8,
+                           itas109::StopBits::StopOne);
+        m_SerialPort1.setReadIntervalTimeout(readIntervalTimeoutMS);
+        if(!m_SerialPort1.open()){
+            QMessageBox::warning(NULL,tr("警告"),portName1 + tr("打开错误") + QString("\n\ncode: %1\nmessage: %2").arg(
+                m_SerialPort1.getLastError()).arg(m_SerialPort1.getLastErrorMsg()));
+            ui->toolBtnOk->setChecked(false);
+            return ;
+        }
+
+        QString portName2 = ui->cmbCom2->currentText();
+        QString baud2 = ui->cmbBaud2->currentText();
+
+        m_SerialPort2.init(portName2.toStdString().c_str(),baud2.toInt(),
+                           itas109::Parity::ParityNone,itas109::DataBits::DataBits8,
+                           itas109::StopBits::StopOne);
+        m_SerialPort2.setReadIntervalTimeout(readIntervalTimeoutMS);
+        if(!m_SerialPort2.open()){
+            QMessageBox::warning(NULL,tr("警告"),portName2 + tr("打开错误") + QString("\n\ncode: %1\nmessage: %2").arg(
+                m_SerialPort2.getLastError()).arg(m_SerialPort2.getLastErrorMsg()));
+            m_SerialPort1.close();
+            ui->toolBtnOk->setChecked(false);
+            return ;
+        }
+
+        ui->toolBtnOk->setStyleSheet("color:green");
+        ui->cmbCom1->setDisabled(true);
+        ui->cmbBaud1->setDisabled(true);
+        ui->cmbCom2->setDisabled(true);
+        ui->cmbBaud2->setDisabled(true);
+        ui->toolBtnRefresh->setDisabled(true);
+        ui->toolBtnOk->setChecked(true);
+    }else{
+        m_SerialPort1.close();
+        m_SerialPort2.close();
+        ui->toolBtnOk->setStyleSheet("color:balck");
+        ui->cmbCom1->setEnabled(true);
+        ui->cmbBaud1->setEnabled(true);
+        ui->cmbCom2->setEnabled(true);
+        ui->cmbBaud2->setEnabled(true);
+        ui->toolBtnRefresh->setEnabled(true);
+        ui->toolBtnOk->setChecked(false);
+    }
+}
+
+void SerialConfigWidget::displayText(const QString &txt)
+{
+    ui->plainTextEdit->appendPlainText(txt.trimmed());
+}
+
+void SerialConfigWidget::onReadEvent(const char *portName, unsigned int readBufferLen)
+{
+    QMutexLocker locker(&mtx);
+    if(portName && std::strcmp(portName,m_SerialPort1.getPortName())==0){
+        int recLen = 0;
+        char * str = NULL;
+        str = new char[readBufferLen];
+        if(str){
+            recLen = m_SerialPort1.readData(str, readBufferLen);
+        }
+
+        if(str && recLen > 0)
+        {
+            // TODO: 中文需要由两个字符拼接，否则显示为空""
+            //QString m_str = QString::fromLocal8Bit(str,recLen);
+            //emitUpdateReceive(m_str);
+            m_SerialPort2.writeData(str,recLen);
+            QString txt = QString("%1:%2").arg(QString::fromLocal8Bit(portName,std::strlen(portName))).arg(QString::fromLocal8Bit(str,recLen));
+            emit displayTextSignal(txt);
+        }
+
+        if(str)
+        {
+            delete[] str;
+            str = NULL;
+        }
+    }else if(portName && std::strcmp(portName,m_SerialPort2.getPortName())==0){
+        int recLen = 0;
+        char * str = NULL;
+        str = new char[readBufferLen];
+        if(str){
+            recLen = m_SerialPort2.readData(str, readBufferLen);
+        }
+
+        if(str && recLen > 0)
+        {
+            // TODO: 中文需要由两个字符拼接，否则显示为空""
+            //QString m_str = QString::fromLocal8Bit(str,recLen);
+            //emitUpdateReceive(m_str);
+            m_SerialPort1.writeData(str,recLen);
+            QString txt = QString("%1:%2").arg(QString::fromLocal8Bit(portName,std::strlen(portName))).arg(QString::fromLocal8Bit(str,recLen));
+            emit displayTextSignal(txt);
+        }
+
+        if(str)
+        {
+            delete[] str;
+            str = NULL;
+        }
+    }
+}
+
diff --git a/serialConfigWidget.h b/serialConfigWidget.h
index 7e92db3..e958c35 100644
--- a/serialConfigWidget.h
+++ b/serialConfigWidget.h
@@ -1,41 +1,42 @@
-#ifndef SERIALCONFIGWIDGET_H
-#define SERIALCONFIGWIDGET_H
-
-#include <QWidget>
-#include <QMutex>
-#include "CSerialPort/SerialPort.h"
-
-using namespace itas109;
-
-namespace Ui {
-class SerialConfigWidget;
-}
-
-class SerialConfigWidget : public QWidget ,public CSerialPortListener
-{
-    Q_OBJECT
-
-public:
-    explicit SerialConfigWidget(QWidget *parent = nullptr);
-    ~SerialConfigWidget();
-
-signals:
-    void displayTextSignal(const QString &txt);
-
-private slots:
-    void on_toolBtnRefresh_clicked();
-    void on_toolBtnOk_clicked();
-    void displayText(const QString &txt);
-
-private slots:
-    void onReadEvent(const char *portName, unsigned int readBufferLen) override;
-
-private:
-    Ui::SerialConfigWidget *ui;
-    CSerialPort m_SerialPort1,m_SerialPort2;
-    int readIntervalTimeoutMS = 50;
-    QMutex mtx;
-    void refreshCom();
-};
-
-#endif // SERIALCONFIGWIDGET_H
+#ifndef SERIALCONFIGWIDGET_H
+#define SERIALCONFIGWIDGET_H
+
+#include <QWidget>
+#include <QMutex>
+#include <cstring>
+#include "CSerialPort/SerialPort.h"
+
+using namespace itas109;
+
+namespace Ui {
+class SerialConfigWidget;
+}
+
+class SerialConfigWidget : public QWidget ,public CSerialPortListener
+{
+    Q_OBJECT
+
+public:
+    explicit SerialConfigWidget(QWidget *parent = nullptr);
+    ~SerialConfigWidget();
+
+signals:
+    void displayTextSignal(const QString &txt);
+
+private slots:
+    void on_toolBtnRefresh_clicked();
+    void on_toolBtnOk_clicked();
+    void displayText(const QString &txt);
+
+private slots:
+    void onReadEvent(const char *portName, unsigned int readBufferLen) override;
+
+private:
+    Ui::SerialConfigWidget *ui;
+    CSerialPort m_SerialPort1,m_SerialPort2;
+    int readIntervalTimeoutMS = 50;
+    QMutex mtx;
+    void refreshCom();
+};
+
+#endif // SERIALCONFIGWIDGET_H
diff --git a/serialConfigWidget.ui b/serialConfigWidget.ui
index 3b5bc7f..b53175c 100644
--- a/serialConfigWidget.ui
+++ b/serialConfigWidget.ui
@@ -1,284 +1,284 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<ui version="4.0">
- <class>SerialConfigWidget</class>
- <widget class="QWidget" name="SerialConfigWidget">
-  <property name="geometry">
-   <rect>
-    <x>0</x>
-    <y>0</y>
-    <width>702</width>
-    <height>374</height>
-   </rect>
-  </property>
-  <property name="sizePolicy">
-   <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
-    <horstretch>0</horstretch>
-    <verstretch>0</verstretch>
-   </sizepolicy>
-  </property>
-  <property name="windowTitle">
-   <string>Form</string>
-  </property>
-  <layout class="QGridLayout" name="gridLayout" columnstretch="1,0,1,0">
-   <property name="leftMargin">
-    <number>4</number>
-   </property>
-   <property name="topMargin">
-    <number>4</number>
-   </property>
-   <property name="rightMargin">
-    <number>4</number>
-   </property>
-   <property name="bottomMargin">
-    <number>4</number>
-   </property>
-   <property name="spacing">
-    <number>0</number>
-   </property>
-   <item row="0" column="2">
-    <widget class="QGroupBox" name="groupBox_2">
-     <property name="styleSheet">
-      <string notr="true">QGroupBox{border:none}</string>
-     </property>
-     <property name="title">
-      <string/>
-     </property>
-     <property name="flat">
-      <bool>true</bool>
-     </property>
-     <layout class="QHBoxLayout" name="horizontalLayout_2">
-      <item>
-       <widget class="QLabel" name="label_3">
-        <property name="text">
-         <string>串口号：</string>
-        </property>
-       </widget>
-      </item>
-      <item>
-       <widget class="QComboBox" name="cmbCom2"/>
-      </item>
-      <item>
-       <widget class="QLabel" name="label_4">
-        <property name="text">
-         <string>波特率：</string>
-        </property>
-       </widget>
-      </item>
-      <item>
-       <widget class="QComboBox" name="cmbBaud2">
-        <property name="editable">
-         <bool>true</bool>
-        </property>
-        <item>
-         <property name="text">
-          <string>115200</string>
-         </property>
-        </item>
-        <item>
-         <property name="text">
-          <string>230400</string>
-         </property>
-        </item>
-        <item>
-         <property name="text">
-          <string>460800</string>
-         </property>
-        </item>
-        <item>
-         <property name="text">
-          <string>921600</string>
-         </property>
-        </item>
-       </widget>
-      </item>
-     </layout>
-    </widget>
-   </item>
-   <item row="0" column="0">
-    <widget class="QGroupBox" name="groupBox">
-     <property name="styleSheet">
-      <string notr="true">QGroupBox{border:none}</string>
-     </property>
-     <property name="title">
-      <string/>
-     </property>
-     <property name="flat">
-      <bool>true</bool>
-     </property>
-     <layout class="QHBoxLayout" name="horizontalLayout">
-      <item>
-       <widget class="QLabel" name="label">
-        <property name="text">
-         <string>串口号：</string>
-        </property>
-       </widget>
-      </item>
-      <item>
-       <widget class="QComboBox" name="cmbCom1"/>
-      </item>
-      <item>
-       <widget class="QLabel" name="label_2">
-        <property name="text">
-         <string>波特率：</string>
-        </property>
-       </widget>
-      </item>
-      <item>
-       <widget class="QComboBox" name="cmbBaud1">
-        <property name="editable">
-         <bool>true</bool>
-        </property>
-        <item>
-         <property name="text">
-          <string>115200</string>
-         </property>
-        </item>
-        <item>
-         <property name="text">
-          <string>230400</string>
-         </property>
-        </item>
-        <item>
-         <property name="text">
-          <string>460800</string>
-         </property>
-        </item>
-        <item>
-         <property name="text">
-          <string>921600</string>
-         </property>
-        </item>
-       </widget>
-      </item>
-     </layout>
-    </widget>
-   </item>
-   <item row="0" column="3">
-    <widget class="QGroupBox" name="groupBox_4">
-     <property name="styleSheet">
-      <string notr="true">QGroupBox{border:none}</string>
-     </property>
-     <property name="title">
-      <string/>
-     </property>
-     <layout class="QHBoxLayout" name="horizontalLayout_3">
-      <item>
-       <widget class="QToolButton" name="toolBtnRefresh">
-        <property name="text">
-         <string>刷新</string>
-        </property>
-       </widget>
-      </item>
-      <item>
-       <widget class="QToolButton" name="toolBtnOk">
-        <property name="text">
-         <string>确定</string>
-        </property>
-        <property name="checkable">
-         <bool>true</bool>
-        </property>
-        <property name="checked">
-         <bool>false</bool>
-        </property>
-       </widget>
-      </item>
-     </layout>
-    </widget>
-   </item>
-   <item row="0" column="1">
-    <widget class="QGroupBox" name="groupBox_3">
-     <property name="styleSheet">
-      <string notr="true">QGroupBox{border:none}</string>
-     </property>
-     <property name="title">
-      <string/>
-     </property>
-     <property name="flat">
-      <bool>false</bool>
-     </property>
-     <layout class="QVBoxLayout" name="verticalLayout">
-      <property name="spacing">
-       <number>0</number>
-      </property>
-      <item>
-       <widget class="QLabel" name="lbArrow1">
-        <property name="sizePolicy">
-         <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
-          <horstretch>0</horstretch>
-          <verstretch>0</verstretch>
-         </sizepolicy>
-        </property>
-        <property name="minimumSize">
-         <size>
-          <width>40</width>
-          <height>12</height>
-         </size>
-        </property>
-        <property name="maximumSize">
-         <size>
-          <width>40</width>
-          <height>12</height>
-         </size>
-        </property>
-        <property name="autoFillBackground">
-         <bool>false</bool>
-        </property>
-        <property name="text">
-         <string/>
-        </property>
-        <property name="pixmap">
-         <pixmap resource="img.qrc">:/images/images/left_arrow_gray.png</pixmap>
-        </property>
-        <property name="scaledContents">
-         <bool>true</bool>
-        </property>
-       </widget>
-      </item>
-      <item>
-       <widget class="QLabel" name="lbArrow2">
-        <property name="sizePolicy">
-         <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
-          <horstretch>0</horstretch>
-          <verstretch>0</verstretch>
-         </sizepolicy>
-        </property>
-        <property name="minimumSize">
-         <size>
-          <width>40</width>
-          <height>12</height>
-         </size>
-        </property>
-        <property name="maximumSize">
-         <size>
-          <width>40</width>
-          <height>12</height>
-         </size>
-        </property>
-        <property name="text">
-         <string/>
-        </property>
-        <property name="pixmap">
-         <pixmap resource="img.qrc">:/images/images/right_arrow_gray.png</pixmap>
-        </property>
-        <property name="scaledContents">
-         <bool>true</bool>
-        </property>
-       </widget>
-      </item>
-     </layout>
-    </widget>
-   </item>
-   <item row="1" column="0" colspan="4">
-    <widget class="QPlainTextEdit" name="plainTextEdit">
-     <property name="maximumBlockCount">
-      <number>10000</number>
-     </property>
-    </widget>
-   </item>
-  </layout>
- </widget>
- <resources>
-  <include location="img.qrc"/>
- </resources>
- <connections/>
-</ui>
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>SerialConfigWidget</class>
+ <widget class="QWidget" name="SerialConfigWidget">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>706</width>
+    <height>374</height>
+   </rect>
+  </property>
+  <property name="sizePolicy">
+   <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+    <horstretch>0</horstretch>
+    <verstretch>0</verstretch>
+   </sizepolicy>
+  </property>
+  <property name="windowTitle">
+   <string>Form</string>
+  </property>
+  <layout class="QGridLayout" name="gridLayout" columnstretch="1,0,0,0">
+   <property name="leftMargin">
+    <number>4</number>
+   </property>
+   <property name="topMargin">
+    <number>4</number>
+   </property>
+   <property name="rightMargin">
+    <number>4</number>
+   </property>
+   <property name="bottomMargin">
+    <number>4</number>
+   </property>
+   <property name="spacing">
+    <number>0</number>
+   </property>
+   <item row="0" column="2">
+    <widget class="QGroupBox" name="groupBox_2">
+     <property name="styleSheet">
+      <string notr="true">QGroupBox{border:none}</string>
+     </property>
+     <property name="title">
+      <string/>
+     </property>
+     <property name="flat">
+      <bool>true</bool>
+     </property>
+     <layout class="QHBoxLayout" name="horizontalLayout_2">
+      <item>
+       <widget class="QLabel" name="label_3">
+        <property name="text">
+         <string>串口号：</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QComboBox" name="cmbCom2"/>
+      </item>
+      <item>
+       <widget class="QLabel" name="label_4">
+        <property name="text">
+         <string>波特率：</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QComboBox" name="cmbBaud2">
+        <property name="editable">
+         <bool>true</bool>
+        </property>
+        <item>
+         <property name="text">
+          <string>115200</string>
+         </property>
+        </item>
+        <item>
+         <property name="text">
+          <string>230400</string>
+         </property>
+        </item>
+        <item>
+         <property name="text">
+          <string>460800</string>
+         </property>
+        </item>
+        <item>
+         <property name="text">
+          <string>921600</string>
+         </property>
+        </item>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item row="0" column="0">
+    <widget class="QGroupBox" name="groupBox">
+     <property name="styleSheet">
+      <string notr="true">QGroupBox{border:none}</string>
+     </property>
+     <property name="title">
+      <string/>
+     </property>
+     <property name="flat">
+      <bool>true</bool>
+     </property>
+     <layout class="QHBoxLayout" name="horizontalLayout">
+      <item>
+       <widget class="QLabel" name="label">
+        <property name="text">
+         <string>串口号：</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QComboBox" name="cmbCom1"/>
+      </item>
+      <item>
+       <widget class="QLabel" name="label_2">
+        <property name="text">
+         <string>波特率：</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QComboBox" name="cmbBaud1">
+        <property name="editable">
+         <bool>true</bool>
+        </property>
+        <item>
+         <property name="text">
+          <string>115200</string>
+         </property>
+        </item>
+        <item>
+         <property name="text">
+          <string>230400</string>
+         </property>
+        </item>
+        <item>
+         <property name="text">
+          <string>460800</string>
+         </property>
+        </item>
+        <item>
+         <property name="text">
+          <string>921600</string>
+         </property>
+        </item>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item row="0" column="3">
+    <widget class="QGroupBox" name="groupBox_4">
+     <property name="styleSheet">
+      <string notr="true">QGroupBox{border:none}</string>
+     </property>
+     <property name="title">
+      <string/>
+     </property>
+     <layout class="QHBoxLayout" name="horizontalLayout_3">
+      <item>
+       <widget class="QToolButton" name="toolBtnRefresh">
+        <property name="text">
+         <string>刷新</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QToolButton" name="toolBtnOk">
+        <property name="text">
+         <string>确定</string>
+        </property>
+        <property name="checkable">
+         <bool>true</bool>
+        </property>
+        <property name="checked">
+         <bool>false</bool>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item row="0" column="1">
+    <widget class="QGroupBox" name="groupBox_3">
+     <property name="styleSheet">
+      <string notr="true">QGroupBox{border:none}</string>
+     </property>
+     <property name="title">
+      <string/>
+     </property>
+     <property name="flat">
+      <bool>false</bool>
+     </property>
+     <layout class="QVBoxLayout" name="verticalLayout">
+      <property name="spacing">
+       <number>0</number>
+      </property>
+      <item>
+       <widget class="QLabel" name="lbArrow1">
+        <property name="sizePolicy">
+         <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
+          <horstretch>0</horstretch>
+          <verstretch>0</verstretch>
+         </sizepolicy>
+        </property>
+        <property name="minimumSize">
+         <size>
+          <width>40</width>
+          <height>12</height>
+         </size>
+        </property>
+        <property name="maximumSize">
+         <size>
+          <width>40</width>
+          <height>12</height>
+         </size>
+        </property>
+        <property name="autoFillBackground">
+         <bool>false</bool>
+        </property>
+        <property name="text">
+         <string/>
+        </property>
+        <property name="pixmap">
+         <pixmap resource="img.qrc">:/images/images/left_arrow_gray.png</pixmap>
+        </property>
+        <property name="scaledContents">
+         <bool>true</bool>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QLabel" name="lbArrow2">
+        <property name="sizePolicy">
+         <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
+          <horstretch>0</horstretch>
+          <verstretch>0</verstretch>
+         </sizepolicy>
+        </property>
+        <property name="minimumSize">
+         <size>
+          <width>40</width>
+          <height>12</height>
+         </size>
+        </property>
+        <property name="maximumSize">
+         <size>
+          <width>40</width>
+          <height>12</height>
+         </size>
+        </property>
+        <property name="text">
+         <string/>
+        </property>
+        <property name="pixmap">
+         <pixmap resource="img.qrc">:/images/images/right_arrow_gray.png</pixmap>
+        </property>
+        <property name="scaledContents">
+         <bool>true</bool>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item row="1" column="0" colspan="4">
+    <widget class="QPlainTextEdit" name="plainTextEdit">
+     <property name="maximumBlockCount">
+      <number>10000</number>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources>
+  <include location="img.qrc"/>
+ </resources>
+ <connections/>
+</ui>
diff --git a/serialConnection.cpp b/serialConnection.cpp
new file mode 100644
index 0000000..b8c320e
--- /dev/null
+++ b/serialConnection.cpp
@@ -0,0 +1,110 @@
+
+#include "serialConnection.h"
+#include <QMessageBox>
+#include <QDebug>
+
+SerialConnection::SerialConnection()
+{
+    m_SerialPort.connectReadEvent(this);
+    protocol = "SERIAL";
+}
+
+SerialConnection::~SerialConnection()
+{
+    if(isConnected()){
+        close();
+    }
+}
+
+bool SerialConnection::open()
+{
+    QString portName = paras.value("serialCom","");
+    QString baud = paras.value("baud","115200");
+    int databits = paras.value("databits",QString::number(itas109::DataBits::DataBits8)).toInt();
+    int stopbits = paras.value("stopbits",QString::number(itas109::StopBits::StopOne)).toInt();
+    int parity = paras.value("parity",QString::number(itas109::Parity::ParityNone)).toInt();
+    int flowControl = paras.value("flowControl",QString::number(itas109::FlowControl::FlowNone)).toInt();
+    if(portName.isEmpty()){
+        return false;
+    }
+    m_SerialPort.init(portName.toStdString().c_str(),baud.toInt(),
+                      itas109::Parity(parity),itas109::DataBits(databits),
+                      itas109::StopBits(stopbits),itas109::FlowControl(flowControl),1024*64);
+    m_SerialPort.setReadIntervalTimeout(readIntervalTimeoutMS);
+    if(m_SerialPort.open()){
+        emit connectionStatusChangeSignal(true);
+        return true;
+    }else{
+        QMessageBox::warning(NULL,tr("警告"),tr("串口打开错误") + QString("\n\ncode: %1\nmessage: %2").arg(
+                                m_SerialPort.getLastError()).arg(m_SerialPort.getLastErrorMsg()));
+        emit connectionStatusChangeSignal(false);
+        return false;
+    }
+}
+
+bool SerialConnection::close()
+{
+    m_SerialPort.close();
+    emit connectionStatusChangeSignal(false);
+    return true;
+}
+
+bool SerialConnection::isConnected()
+{
+    return m_SerialPort.isOpen();
+}
+
+int SerialConnection::sendData(const QByteArray &data)
+{
+    if(m_SerialPort.isOpen())
+    {
+        const char *s = data.constData();
+
+        // 支持中文并获取正确的长度
+        int len = m_SerialPort.writeData(s,data.length());
+        emit recvUserSendDataSignal(data);
+        return len;
+    }else{
+        return -1;
+    }
+}
+
+void SerialConnection::setting(QMap<QString, QString> &map)
+{
+    if(isConnected()){
+        close();
+    }
+    paras = map;
+    connectionName = paras.value("serialCom","");
+}
+
+void SerialConnection::onReadEvent(const char *portName, unsigned int readBufferLen)
+{
+    Q_UNUSED(portName);
+
+    if(readBufferLen > 0)
+    {
+        int recLen = 0;
+        char * str = NULL;
+        str = new char[readBufferLen];
+        if(str){
+            recLen = m_SerialPort.readData(str, readBufferLen);
+        }
+
+        if(recLen > 0)
+        {
+            // TODO: 中文需要由两个字符拼接，否则显示为空""
+            //QString m_str = QString::fromLocal8Bit(str,recLen);
+            //emitUpdateReceive(m_str);
+            QByteArray array(str,recLen);
+            emit recvDataSignal(array);
+        }
+
+        if(str)
+        {
+            delete[] str;
+            str = NULL;
+        }
+    }
+}
+
diff --git a/serialConnection.h b/serialConnection.h
new file mode 100644
index 0000000..fd4dd1f
--- /dev/null
+++ b/serialConnection.h
@@ -0,0 +1,31 @@
+
+#ifndef SERIALCONNECTION_H
+#define SERIALCONNECTION_H
+
+#include "baseConnection.h"
+#include "CSerialPort/SerialPort.h"
+
+using namespace itas109;
+
+class SerialConnection :public BaseConnection, public CSerialPortListener
+{
+    Q_OBJECT
+public:
+    SerialConnection();
+    ~SerialConnection();
+    bool open() override;
+    bool close() override;
+    bool isConnected() override;
+    int sendData(const QByteArray &data) override;
+    void setting(QMap<QString,QString> &map) override;
+
+private slots:
+    void onReadEvent(const char *portName, unsigned int readBufferLen) override;
+
+private:
+    CSerialPort m_SerialPort;
+    int readIntervalTimeoutMS = 20;
+
+};
+
+#endif // SERIALCONNECTION_H
diff --git a/serialTransferTool.pro b/serialTransferTool.pro
index 63f8011..e9cddae 100644
--- a/serialTransferTool.pro
+++ b/serialTransferTool.pro
@@ -16,16 +16,30 @@ msvc{
 include($$PWD/3rdparty/CSerialPort/examples/CommQT/commqt.pri)
 
 SOURCES += \
+    baseConnection.cpp \
+    connectionManager.cpp \
+    connectionSettingWidget.cpp \
     main.cpp \
     mainwindow.cpp \
-    serialConfigWidget.cpp
+    mutilSerialConfigWidget.cpp \
+    myComboBox.cpp \
+    serialConfigWidget.cpp \
+    serialConnection.cpp
 
 HEADERS += \
+    baseConnection.h \
+    connectionManager.h \
+    connectionSettingWidget.h \
     mainwindow.h \
-    serialConfigWidget.h
+    mutilSerialConfigWidget.h \
+    myComboBox.h \
+    serialConfigWidget.h \
+    serialConnection.h
 
 FORMS += \
+    connectionSettingWidget.ui \
     mainwindow.ui \
+    mutilSerialConfigWidget.ui \
     serialConfigWidget.ui
 
 # Default rules for deployment.