diff --git a/ClassDigitizer.cpp b/ClassDigitizer.cpp
index 5f73092..96c479a 100644
--- a/ClassDigitizer.cpp
+++ b/ClassDigitizer.cpp
@@ -284,8 +284,9 @@ int Digitizer::ProgramBoard(){
 
 int Digitizer::ProgramPHABoard(){
   
+  printf("========Digitizer::%s\n", __func__);
+
   ret = CAEN_DGTZ_Reset(handle);
-  printf("======== program board PHA\n");
 
   ret = CAEN_DGTZ_WriteRegister(handle, DPP::RecordLength_G + 0x7000, 62);  
   ret = CAEN_DGTZ_WriteRegister(handle, DPP::BoardConfiguration, 0x0F8915);  /// has Extra2, dual trace, input and trap-baseline
@@ -302,8 +303,6 @@ int Digitizer::ProgramPHABoard(){
   
   ret = CAEN_DGTZ_SetRunSynchronizationMode(handle, CAEN_DGTZ_RUN_SYNC_Disabled);
   if( ret != 0 ) { printf("==== set board error.\n"); return 0;}
-
-  printf("======== program Channels PHA\n");
   
   uint32_t address;
   
@@ -330,8 +329,6 @@ int Digitizer::ProgramPHABoard(){
   
   if( ret != 0 ) { printf("==== set channels error.\n"); return 0;}
   
-  printf("End of program board and channels\n");
-  
   isSettingFilledinMemeory = false; /// unlock the ReadAllSettingsFromBoard();
   ReadAllSettingsFromBoard();
   
@@ -555,7 +552,7 @@ void Digitizer::ReadAllSettingsFromBoard(bool force){
   if( AcqRun ) return;
   if( isSettingFilledinMemeory && !force) return;
 
-  printf("===== %s \n", __func__);
+  printf("===== Digitizer::%s \n", __func__);
 
   /// board setting
   for( int p = 0; p < (int) RegisterDPPList.size(); p++){
@@ -581,37 +578,44 @@ void Digitizer::ReadAllSettingsFromBoard(bool force){
     }
   }
   isSettingFilledinMemeory = true;
+
+  printf("---------------------- end of %s \n", __func__);
+
 }
 
 void Digitizer::ProgramSettingsToBoard(){
-  if( !isConnected ) return;
-  if( isDummy ) return;
+  if( !isConnected || isDummy ) return;
   
+  printf("========== %s \n", __func__);
+
   Reg haha;
   
   /// board setting
-  for( int p = 0; p < (int) RegisterDPPList[p]; p++){
-    if( RegisterDPPList[p].GetType() == RW::ReadONLY) continue;
-    haha = RegisterDPPList[p];
-    WriteRegister(haha, GetSettingFromMemory(haha), -1, false); 
-    usleep(100 * 1000);
+  for( int p = 0; p < (int) RegisterDPPList.size(); p++){
+    if( RegisterDPPList[p].GetType() == RW::ReadWrite) {
+      haha = RegisterDPPList[p];
+      WriteRegister(haha, GetSettingFromMemory(haha), -1, false); 
+      usleep(1 * 1000);
+    }
   }
   /// Channels Setting
   for( int ch = 0; ch < NChannel; ch ++){
     if( DPPType == V1730_DPP_PHA_CODE ){
-      for( int p = 0; p < (int) RegisterPHAList[p]; p++){
-        if( RegisterPHAList[p].GetType() == RW::ReadONLY) continue;
-        haha = RegisterPHAList[p];
-        WriteRegister(haha, GetSettingFromMemory(haha, ch), ch, false); 
-        usleep(100 * 1000);
+      for( int p = 0; p < (int) RegisterPHAList.size(); p++){
+        if( RegisterPHAList[p].GetType() == RW::ReadWrite ){
+          haha = RegisterPHAList[p];
+          WriteRegister(haha, GetSettingFromMemory(haha, ch), ch, false); 
+          usleep(1 * 1000);
+        }
       }
     }
     if( DPPType == V1730_DPP_PSD_CODE ){
-      for( int p = 0; p < (int) RegisterPSDList[p]; p++){
-        if( RegisterPSDList[p].GetType() == RW::ReadONLY) continue;
-        haha = RegisterPHAList[p];
-        WriteRegister(haha, GetSettingFromMemory(haha, ch), ch, false); 
-        usleep(100 * 1000);
+      for( int p = 0; p < (int) RegisterPSDList.size(); p++){
+        if( RegisterPSDList[p].GetType() == RW::ReadWrite){
+          haha = RegisterPHAList[p];
+          WriteRegister(haha, GetSettingFromMemory(haha, ch), ch, false); 
+          usleep(1 * 1000);
+        }
       }
     }
   } 
diff --git a/DigiSettingsPanel.cpp b/DigiSettingsPanel.cpp
index 28814c3..1fa41ab 100644
--- a/DigiSettingsPanel.cpp
+++ b/DigiSettingsPanel.cpp
@@ -1229,21 +1229,21 @@ void DigiSettingsPanel::SaveSetting(int opt){
   QDir dir(rawDataPath);
   if( !dir.exists() ) dir.mkpath(".");
 
-  QString filePath = QFileDialog::getSaveFileName(this, "Save Settings File", rawDataPath, opt == 0 ? "Data file (*.dat)" : "Text file (*.txt)");
+  QString filePath = QFileDialog::getSaveFileName(this, "Save Settings File", rawDataPath, opt == 0 ? "Binary (*.bin)" : "Text file (*.txt)");
 
   if (!filePath.isEmpty()) {
 
     QFileInfo  fileInfo(filePath);
     QString ext = fileInfo.suffix();
     if( opt == 0 ){
-      if( ext == "") filePath += ".dat";
+      if( ext == "") filePath += ".bin";
       digi[ID]->SaveAllSettingsAsBin(filePath.toStdString().c_str());
-      leSaveFilePath[ID]->setText(filePath + " | update constantly");
+      leSaveFilePath[ID]->setText(filePath + " | dynamic update");
     }
     if( opt == 1 ){
       if( ext == "") filePath += ".txt";
       digi[ID]->SaveAllSettingsAsText(filePath.toStdString().c_str());
-      leSaveFilePath[ID]->setText(filePath);
+      leSaveFilePath[ID]->setText(filePath + " | not loadable!!");
     }
 
     SendLogMsg("Saved setting file <b>" +  filePath + "</b>.");
@@ -1256,7 +1256,7 @@ void DigiSettingsPanel::LoadSetting(){
   QFileDialog fileDialog(this);
   fileDialog.setDirectory(rawDataPath);
   fileDialog.setFileMode(QFileDialog::ExistingFile);
-  fileDialog.setNameFilter("Data file (*.dat);;");
+  fileDialog.setNameFilter("Binary (*.bin);;");
   int result = fileDialog.exec();
 
   if( ! (result == QDialog::Accepted) ) return;
@@ -1265,12 +1265,12 @@ void DigiSettingsPanel::LoadSetting(){
 
   QString fileName = fileDialog.selectedFiles().at(0);
 
-  leSaveFilePath[ID]->setText(fileName);
-
-  if( digi[ID]->LoadSettingBinaryToMemory(fileName.toStdString().c_str()) ){
+  if( digi[ID]->LoadSettingBinaryToMemory(fileName.toStdString().c_str()) == 0 ){
     SendLogMsg("Loaded settings file " + fileName + " for Digi-" + QString::number(digi[ID]->GetSerialNumber()));
+    leSaveFilePath[ID]->setText(fileName + " | dynamic update");
     digi[ID]->ProgramSettingsToBoard();
     UpdatePanelFromMemory();
+
   }else{
     SendLogMsg("Fail to Loaded settings file " + fileName + " for Digi-" + QString::number(digi[ID]->GetSerialNumber()));
   }
diff --git a/FSUDAQ.cpp b/FSUDAQ.cpp
index ec41652..c138096 100644
--- a/FSUDAQ.cpp
+++ b/FSUDAQ.cpp
@@ -161,33 +161,6 @@ MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent){
   programSettingsFilePath = QDir::current().absolutePath() + "/programSettings.txt";
   LoadProgramSettings();
 
-  {
-    scalar = new QMainWindow(this);
-    scalar->setWindowTitle("Scalar");
-
-    QScrollArea * scopeScroll = new QScrollArea(scalar);
-    scalar->setCentralWidget(scopeScroll);
-    scopeScroll->setWidgetResizable(true);
-    scopeScroll->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
-
-    QWidget * layoutWidget = new QWidget(scalar);
-    scopeScroll->setWidget(layoutWidget);
-
-    scalarLayout = new QGridLayout(layoutWidget);
-    scalarLayout->setSpacing(0);
-    scalarLayout->setAlignment(Qt::AlignTop);
-
-    leTrigger = nullptr;
-    leAccept = nullptr;
-
-    lbLastUpdateTime = nullptr;
-    lbScalarACQStatus = nullptr;
-
-    scalarThread = new TimingThread();
-    connect(scalarThread, &TimingThread::timeUp, this, &MainWindow::UpdateScalar);
-
-  }
-
   //=========== disable widget
   WaitForDigitizersOpen(true);
 
@@ -373,15 +346,30 @@ void MainWindow::OpenDigitizers(){
   readDataThread = new ReadDataThread * [nDigi];
   for( unsigned int i = 0; i < nDigi; i++){
     digi[i] = new Digitizer(portList[i].first, portList[i].second);
-    //TODO === load settings 
     digi[i]->Reset();
-    digi[i]->ProgramPHABoard();
+
+    ///============== load settings 
+    QString fileName = rawDataPath + "/Digi-" + QString::number(digi[i]->GetSerialNumber()) + ".bin"; 
+    QFile file(fileName);
+    if( !file.open(QIODevice::Text | QIODevice::ReadOnly) ) {
+      LogMsg("<b>" + fileName + "</b> not found. Program predefined PHA settings."); //TODO, PSD?
+      digi[i]->ProgramPHABoard();
+    }else{
+      LogMsg("Found <b>" + fileName + "</b> for digitizer settings.");
+      
+      if( digi[i]->LoadSettingBinaryToMemory(fileName.toStdString().c_str()) == 0 ){
+        LogMsg("Loaded settings file " + fileName + " for Digi-" + QString::number(digi[i]->GetSerialNumber()));
+        digi[i]->ProgramSettingsToBoard();
+        
+      }else{
+        LogMsg("Fail to Loaded settings file " + fileName + " for Digi-" + QString::number(digi[i]->GetSerialNumber()));
+      }
+    }    
+
     readDataThread[i] = new ReadDataThread(digi[i], i);
     connect(readDataThread[i], &ReadDataThread::sendMsg, this, &MainWindow::LogMsg);
   }
 
-  digi[0]->SaveAllSettingsAsText("setting.txt");
-
   LogMsg(QString("Done. Opened %1 digitizer(s).").arg(nDigi));
 
   WaitForDigitizersOpen(false);
@@ -413,8 +401,6 @@ void MainWindow::CloseDigitizers(){
   for(unsigned int i = 0; i < nDigi; i ++){
     digi[i]->CloseDigitizer();
     delete digi[i];
-    digi[i] = nullptr;
-
     delete readDataThread[i];
   }
   delete [] digi;
@@ -448,6 +434,30 @@ void MainWindow::WaitForDigitizersOpen(bool onOff){
 //***************************************************************
 void MainWindow::SetupScalar(){
 
+  scalar = new QMainWindow(this);
+  scalar->setWindowTitle("Scalar");
+
+  QScrollArea * scopeScroll = new QScrollArea(scalar);
+  scalar->setCentralWidget(scopeScroll);
+  scopeScroll->setWidgetResizable(true);
+  scopeScroll->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
+
+  QWidget * layoutWidget = new QWidget(scalar);
+  scopeScroll->setWidget(layoutWidget);
+
+  scalarLayout = new QGridLayout(layoutWidget);
+  scalarLayout->setSpacing(0);
+  scalarLayout->setAlignment(Qt::AlignTop);
+
+  leTrigger = nullptr;
+  leAccept = nullptr;
+
+  lbLastUpdateTime = nullptr;
+  lbScalarACQStatus = nullptr;
+
+  scalarThread = new TimingThread();
+  connect(scalarThread, &TimingThread::timeUp, this, &MainWindow::UpdateScalar);
+
   scalar->setGeometry(0, 0, 10 + nDigi * 180, 110 + MaxNChannels * 20);
 
   if( lbLastUpdateTime == nullptr ){