diff --git a/ClassDigitizer.h b/ClassDigitizer.h
index 14d1982..7be3a64 100644
--- a/ClassDigitizer.h
+++ b/ClassDigitizer.h
@@ -152,10 +152,10 @@ class Digitizer{
     // bool IsEnabledAutoDataFlush()   {return (  GetSettingFromMemory(DPP::BoardConfiguration) & 0x1 );}
     // bool IsDecimateTrace()          {return ( (GetSettingFromMemory(DPP::BoardConfiguration) >>  1) & 0x1 );}
     // bool IsTriggerPropagate()       {return ( (GetSettingFromMemory(DPP::BoardConfiguration) >>  2) & 0x1 );}
-    bool IsDualTrace()              {return ( (GetSettingFromMemory(DPP::BoardConfiguration) >> 11) & 0x1 );}
+    bool IsDualTrace_PHA()           {return ( (GetSettingFromMemory(DPP::BoardConfiguration) >> 11) & 0x1 );}
     // unsigned short AnaProbe1Type()  {return ( (GetSettingFromMemory(DPP::BoardConfiguration) >> 12) & 0x3 );}
     // unsigned short AnaProbe2Type()  {return ( (GetSettingFromMemory(DPP::BoardConfiguration) >> 14) & 0x3 );}
-    // bool IsRecordTrace()            {return ( (GetSettingFromMemory(DPP::BoardConfiguration) >> 16) & 0x1 );}
+    bool IsRecordTrace()             {return ( (GetSettingFromMemory(DPP::BoardConfiguration) >> 16) & 0x1 );}
     // bool IsEnabledExtra2()          {return ( (GetSettingFromMemory(DPP::BoardConfiguration) >> 17) & 0x1 );}
     // bool IsRecordTimeStamp()        {return ( (GetSettingFromMemory(DPP::BoardConfiguration) >> 18) & 0x1 );}
     // bool IsRecordEnergy()           {return ( (GetSettingFromMemory(DPP::BoardConfiguration) >> 19) & 0x1 );}
diff --git a/DigiSettingsPanel.cpp b/DigiSettingsPanel.cpp
index b01e16e..25c0597 100644
--- a/DigiSettingsPanel.cpp
+++ b/DigiSettingsPanel.cpp
@@ -655,6 +655,7 @@ void DigiSettingsPanel::SetUpCheckBox(QCheckBox * &chkBox, QString label, QGridL
     digi[ID]->SetBits(para, bit, state ? 1 : 0, chID);
     if( para.IsCoupled() == true && chID >= 0 ) digi[ID]->SetBits(para, bit, state ? 1 : 0, chID%2 == 0 ? chID + 1 : chID - 1);
     UpdatePanelFromMemory();
+    emit UpdateOtherPanels();
   });
 
 }
@@ -683,6 +684,7 @@ void DigiSettingsPanel::SetUpComboBoxBit(RComboBox * &cb, QString label, QGridLa
     digi[ID]->SetBits(para, bit, cb->currentData().toUInt(), chID);
     if( para.IsCoupled() == true && chID >= 0  ) digi[ID]->SetBits(para, bit, cb->currentData().toUInt(), chID%2 == 0 ? chID + 1 : chID - 1);
     UpdatePanelFromMemory();
+    emit UpdateOtherPanels();
   });
 
 }
@@ -711,6 +713,7 @@ void DigiSettingsPanel::SetUpComboBox(RComboBox * &cb, QString label, QGridLayou
     digi[ID]->WriteRegister(para, cb->currentData().toUInt(), chID);
     if( para.IsCoupled() == true && chID >= 0  ) digi[ID]->WriteRegister(para, cb->currentData().toUInt(), chID%2 == 0 ? chID + 1 : chID - 1);
     UpdatePanelFromMemory();
+    emit UpdateOtherPanels();
   });
 
 }
@@ -762,18 +765,21 @@ void DigiSettingsPanel::SetUpSpinBox(RSpinBox * &sb, QString label, QGridLayout
     if( para == DPP::ChannelDCOffset ){
       digi[ID]->WriteRegister(para, 0xFFFF * (1.0 - sb->value() / 100. ), chID);
       UpdatePanelFromMemory();
+      emit UpdateOtherPanels();
       return;
     }
 
     if( para == DPP::PSD::CFDSetting ){
       digi[ID]->SetBits(para, DPP::PSD::Bit_CFDSetting::CFDDealy, sb->value()/digi[ID]->GetCh2ns(), chID);
       UpdatePanelFromMemory();
+      emit UpdateOtherPanels();
       return;
     }
 
     if( para == DPP::DPPAlgorithmControl ){
       digi[ID]->SetBits(para, {5,0}, sb->value(), chID);
       UpdatePanelFromMemory();
+      emit UpdateOtherPanels();
       return;
     }
 
@@ -783,6 +789,7 @@ void DigiSettingsPanel::SetUpSpinBox(RSpinBox * &sb, QString label, QGridLayout
     if( para.IsCoupled() == true  && chID >= 0 ) digi[ID]->WriteRegister(para, bit, chID%2 == 0 ? chID + 1 : chID - 1);
 
     UpdatePanelFromMemory();
+    emit UpdateOtherPanels();
   });
 
 }
diff --git a/DigiSettingsPanel.h b/DigiSettingsPanel.h
index 62cbf85..1e630f3 100644
--- a/DigiSettingsPanel.h
+++ b/DigiSettingsPanel.h
@@ -21,7 +21,7 @@ public:
   DigiSettingsPanel(Digitizer ** digi, unsigned int nDigi, QString rawDataPath, QMainWindow * parent = nullptr);
   ~DigiSettingsPanel();
 
-private slots:
+public slots:
   void UpdatePanelFromMemory();
   void ReadSettingsFromBoard();
 
@@ -30,6 +30,7 @@ private slots:
 
 signals:
   void SendLogMsg(const QString &msg);
+  void UpdateOtherPanels();
 
 private:
 
@@ -68,7 +69,6 @@ private:
 
   void CheckRadioAndCheckedButtons();
 
-
   Digitizer ** digi;
   unsigned int nDigi;
   unsigned short ID;
diff --git a/FSUDAQ.cpp b/FSUDAQ.cpp
index 4b38dc8..8b67d26 100644
--- a/FSUDAQ.cpp
+++ b/FSUDAQ.cpp
@@ -393,6 +393,7 @@ void MainWindow::OpenDigitizers(){
     QCoreApplication::processEvents(); //to prevent Qt said application not responding.
   }
 
+  canvas = new Canvas(digi, nDigi);
   histThread = new TimingThread(this);
   histThread->SetWaitTimeinSec(0.5);
   connect(histThread, &TimingThread::timeUp, this, [=](){
@@ -660,7 +661,7 @@ void MainWindow::StartACQ(){
   }
   lbScalarACQStatus->setText("<font style=\"color: green;\"><b>ACQ On</b></font>");
 
-  //if( canvas != nullptr ) histThread->start();
+  if( canvas != nullptr ) histThread->start();
 
   bnStartACQ->setEnabled(false);
   bnStopACQ->setEnabled(true);
@@ -847,6 +848,9 @@ void MainWindow::OpenScope(){
     });
 
     connect(scope, &Scope::UpdateScaler, this, &MainWindow::UpdateScalar);
+
+    connect(scope, &Scope::UpdateOtherPanels, this, [=](){ UpdateAllPanels(1); });
+
     scope->show();
   }else{
     scope->show();
@@ -867,6 +871,8 @@ void MainWindow::OpenDigiSettings(){
   if( digiSettings == nullptr ) {
     digiSettings = new DigiSettingsPanel(digi, nDigi, rawDataPath);
     //connect(scope, &Scope::SendLogMsg, this, &MainWindow::LogMsg);
+    connect(digiSettings, &DigiSettingsPanel::UpdateOtherPanels, this, [=](){ UpdateAllPanels(2); });
+
     digiSettings->show();
   }else{
     digiSettings->show();
@@ -889,6 +895,24 @@ void MainWindow::OpenCanvas(){
 
 }
 
+//***************************************************************
+//***************************************************************
+void MainWindow::UpdateAllPanels(int panelID){
+
+  //panelID is the source panel that call
+  // scope = 1;
+  // digiSetting = 2;
+
+  if( panelID == 1 ){ // from scope
+    if( digiSettings && digiSettings->isVisible() ) digiSettings->UpdatePanelFromMemory();
+  }
+
+  if( panelID == 2 ){
+    if(scope && scope->isVisible() ) scope->UpdatePanelFromMomeory();
+  }
+
+}
+
 //***************************************************************
 //***************************************************************
 void MainWindow::LogMsg(QString msg){
diff --git a/FSUDAQ.h b/FSUDAQ.h
index 6d78a5f..e7ab178 100644
--- a/FSUDAQ.h
+++ b/FSUDAQ.h
@@ -61,6 +61,8 @@ private slots:
 
   void OpenCanvas();
 
+  void UpdateAllPanels(int panelID);
+
 private:
 
   Digitizer ** digi;
diff --git a/FSUDAQ_Qt6.pro b/FSUDAQ_Qt6.pro
index 9f4062a..5522649 100644
--- a/FSUDAQ_Qt6.pro
+++ b/FSUDAQ_Qt6.pro
@@ -8,8 +8,11 @@ INCLUDEPATH += .
 
 QT += core widgets charts
 
-QMAKE_CXXFLAGS += `root-config --cflags --glibs`
-LIBS += -lCAENDigitizer  `root-config --cflags --glibs`
+#QMAKE_CXXFLAGS += `root-config --cflags --glibs`
+#LIBS += -lCAENDigitizer  `root-config --cflags --glibs`
+
+#QMAKE_CXXFLAGS += -g
+LIBS += -lCAENDigitizer 
 
 # You can make your code fail to compile if you use deprecated APIs.
 # In order to do so, uncomment the following line.
diff --git a/Scope.cpp b/Scope.cpp
index 9c10256..13ad080 100644
--- a/Scope.cpp
+++ b/Scope.cpp
@@ -13,6 +13,8 @@ Scope::Scope(Digitizer ** digi, unsigned int nDigi, ReadDataThread ** readDataTh
   this->nDigi = nDigi;
   this->readDataThread = readDataThread;
 
+  for( unsigned int i = 0; i < nDigi; i++){ traceOn[i] = digi[i]->IsRecordTrace();}
+
   setWindowTitle("Scope");
   setGeometry(0, 0, 1000, 800);  
   setWindowFlags( this->windowFlags() & ~Qt::WindowCloseButtonHint );
@@ -230,6 +232,7 @@ void Scope::StartScope(){
 
   for( unsigned int iDigi = 0; iDigi < nDigi; iDigi ++){
 
+    digi[iDigi]->SetBits(DPP::BoardConfiguration, DPP::Bit_BoardConfig::RecordTrace, 1, -1);
     digi[iDigi]->GetData()->SetSaveWaveToMemory(true);
 
     digi[iDigi]->StartACQ();
@@ -244,6 +247,8 @@ void Scope::StartScope(){
     readDataThread[iDigi]->start();
   }
 
+  emit UpdateOtherPanels();
+
   updateTraceThread->start();
 
   bnScopeStart->setEnabled(false);
@@ -273,8 +278,12 @@ void Scope::StopScope(){
     digiMTX[iDigi].lock();
     digi[iDigi]->StopACQ();
     digiMTX[iDigi].unlock();
+
+    digi[iDigi]->SetBits(DPP::BoardConfiguration, DPP::Bit_BoardConfig::RecordTrace, traceOn[iDigi], -1);
   }
 
+  emit UpdateOtherPanels();
+
   bnScopeStart->setEnabled(true);
   bnScopeStop->setEnabled(false);
 
@@ -292,7 +301,7 @@ void Scope::UpdateScope(){
 
   int ch = cbScopeCh->currentIndex();
   int ch2ns = digi[ID]->GetCh2ns();
-  int factor = digi[ID]->IsDualTrace() ? 2 : 1;
+  int factor = digi[ID]->IsDualTrace_PHA() ? 2 : 1;
 
   digiMTX[ID].lock();
   Data * data = digi[ID]->GetData();
@@ -374,6 +383,7 @@ void Scope::SetUpComboBox(RComboBox * &cb, QString str, int row, int col, const
     if( digi[ID]->GetErrorCode() == CAEN_DGTZ_Success ){
       SendLogMsg(msg + " | OK.");
       cb->setStyleSheet("");
+      emit UpdateOtherPanels();
     }else{
       SendLogMsg(msg + " | Fail.");
       cb->setStyleSheet("color:red;");
@@ -421,7 +431,7 @@ void Scope::SetUpSpinBox(RSpinBox * &sb, QString str, int row, int col, const Re
     uint32_t value = sb->value() / ch2ns / abs(para.GetPartialStep());
 
     if( para == DPP::RecordLength_G){
-      int factor = digi[ID]->IsDualTrace() ? 2 : 1;
+      int factor = digi[ID]->IsDualTrace_PHA() ? 2 : 1;
       value = value * factor;
     }
 
@@ -441,6 +451,7 @@ void Scope::SetUpSpinBox(RSpinBox * &sb, QString str, int row, int col, const Re
     if( digi[ID]->GetErrorCode() == CAEN_DGTZ_Success ){
       SendLogMsg(msg + " | OK.");
       sb->setStyleSheet("");
+      emit UpdateOtherPanels();
     }else{
       SendLogMsg(msg + " | Fail.");
       sb->setStyleSheet("color:red;");
diff --git a/Scope.h b/Scope.h
index fe50ccb..c33f6e9 100644
--- a/Scope.h
+++ b/Scope.h
@@ -37,11 +37,12 @@ public:
     event->accept();
   }
 
-private slots:
+public slots:
   void StartScope();
   void StopScope();
   void UpdateScope();
   void ReadSettingsFromBoard();
+  void UpdatePanelFromMomeory();
 
 signals:
 
@@ -49,6 +50,7 @@ signals:
   void SendLogMsg(const QString &msg);
   void TellACQOnOff(const bool onOff);
   void UpdateScaler();
+  void UpdateOtherPanels();
 
 private:
 
@@ -63,7 +65,6 @@ private:
 
   void UpdateComobox(RComboBox * &cb, const Reg para);
   void UpdateSpinBox(RSpinBox * &sb, const Reg para);
-  void UpdatePanelFromMomeory();
   void UpdatePHAPanel();
   void UpdatePSDPanel();
 
@@ -71,6 +72,7 @@ private:
   unsigned short nDigi;
   unsigned short ID; // the id of digi, index of cbScopeDigi
   int ch2ns;
+  bool traceOn[MaxNDigitizer];
 
   ReadDataThread ** readDataThread;   
   TimingThread * updateTraceThread;