finished testbench generation

[blast.git] / Dispatcher.cpp

diff --git a/Dispatcher.cpp b/Dispatcher.cpp
index b1625593cedad52154794e4b67dd91ecbbbbfc4f..574243ef2a2287fec1e5cf03a0e559bbc50c2cc3 100644 (file)
--- a/Dispatcher.cpp
+++ b/Dispatcher.cpp
@@ -100,7 +100,16 @@ void Dispatcher::setSceneCounter(Context context, int value) {
 }
 
 bool Dispatcher::createConnection(Context context, InterfaceItem *iface1, InterfaceItem *iface2, bool visible) {
-    
+  static QString fctName = "Dispatcher::createConnection()";
+#ifdef DEBUG_FCTNAME
+  cout << "call to " << qPrintable(fctName) << endl;
+#endif
+
+  bool testClock = false;
+  if (context == Design) {
+    testClock = true;
+  }
+
   ConnectedInterface* ref1 = iface1->refInter;
   ConnectedInterface* ref2 = iface2->refInter;  
   // connect both interface
@@ -108,23 +117,36 @@ bool Dispatcher::createConnection(Context context, InterfaceItem *iface1, Interf
   bool ok1 = false;
   bool ok2 = false;
 
+  cout << "trying to create a connection between " << qPrintable(ref1->getOwner()->getName()) << "/" << qPrintable(ref1->getName());
+  cout << " and " << qPrintable(ref2->getOwner()->getName()) << "/" << qPrintable(ref2->getName());
+
   // test the ref1->ref2 connection
-  if ((ref1->canConnectTo(ref2)) && (ref2->canConnectFrom(ref1))) {
+  if ((ref1->canConnectTo(ref2,testClock)) && (ref2->canConnectFrom(ref1,testClock))) {
     ref1->connectTo(ref2);    
     ok1 = true;
   }
   // if the first one did not work, test ref2->ref1
-  if ((ok1 == false) && (ref2->canConnectTo(ref1)) && (ref1->canConnectFrom(ref2))) {  
+  if ((ok1 == false) && (ref2->canConnectTo(ref1,testClock)) && (ref1->canConnectFrom(ref2,testClock))) {
     ref2->connectTo(ref1);    
     ok2 = true;
   }
-  if ((ok1 == true) || (ok2 == true)) {
+  if ((ok1 == true) || (ok2 == true)) {    
+
+    if (ok1) {
+      cout << " ... done with " << qPrintable(ref1->getOwner()->getName()) << "/" << qPrintable(ref1->getName());
+      cout << " to " << qPrintable(ref2->getOwner()->getName()) << "/" << qPrintable(ref2->getName());
+      iface1->getOwner()->getScene()->createConnectionItem(iface1,iface2, visible);
+    }
+    else {
+      cout << "... done with " << qPrintable(ref2->getOwner()->getName()) << "/" << qPrintable(ref2->getName());
+      cout << " to " << qPrintable(ref1->getOwner()->getName()) << "/" << qPrintable(ref1->getName());
+      iface2->getOwner()->getScene()->createConnectionItem(iface2,iface1, visible);
+    }
 
-    iface1->getOwner()->getScene()->createConnectionItem(iface1,iface2, visible);
+    cout << endl;
 
     unselectAllItems(context);
-    params->unsaveModif = true;
-    cout << "created a connection from " << qPrintable(ref1->getName()) << " to " << qPrintable(ref2->getName()) << endl;
+    params->unsaveModif = true;    
     return true;
   }
   return false;
@@ -190,6 +212,12 @@ void Dispatcher::generateVHDL(Context context) throw(Exception) {
 #ifdef DEBUG_FCTNAME
   cout << "call to " << qPrintable(fctName) << endl;
 #endif
+  /* NB: only called in Design context */
+  if (context != Design) {
+    cout << "Abnormal case: call to " << qPrintable(fctName) << " not in Design context" << endl;
+    return;
+  }
+
 
   QDir baseDir(params->projectPath);
   QDir srcDir(params->projectPath+"/src");
@@ -214,10 +242,10 @@ void Dispatcher::generateVHDL(Context context) throw(Exception) {
     make.copy(dest);
   }
 
-  // copying external resources
+  // generate VHDL + copying external resources
   QString dest = params->projectPath;
-  dest += "/src/";
-  try {
+  dest += "/src/";  
+  try {    
     params->getGraph()->generateVHDL(dest);
 
     QList<QString> extResources = params->getGraph()->getExternalResources();
@@ -236,6 +264,17 @@ void Dispatcher::generateVHDL(Context context) throw(Exception) {
   catch(Exception e) {
     throw(e);
   }
+  // generate testbench
+  dest = params->projectPath;
+  dest += "/testbench/";
+  dest += params->projectName;
+  dest += "_tb.vhd";
+  try {
+    params->getGraph()->generateTestbench(params->projectName, dest);
+  }
+  catch(Exception e) {
+    throw(e);
+  }
 
   // creating parameters file
   QString paramName = params->projectPath+"/params-isim.txt";
@@ -264,8 +303,7 @@ void Dispatcher::generateVHDL(Context context) throw(Exception) {
   }
   out << endl;
   out << "VL_SRC := ${XILINX}/verilog/src/glbl.v" << endl << endl;
-  out << "TB_SRC := $(TB_DIR)/read_csv.vhd \\" << endl;
-  out << "\t$(TB_DIR)/$(PROJECT_NAME)_tb.vhd" << endl << endl;
+  out << "TB_SRC := $(TB_DIR)/$(PROJECT_NAME)_tb.vhd" << endl << endl;
   out << "SIMU_EXE := $(PROJECT_NAME)_tb" << endl << endl;
 
   paramFile.close();
@@ -284,6 +322,12 @@ void Dispatcher::generateBlockVHDL(Context context, BoxItem *item){
 #ifdef DEBUG_FCTNAME
   cout << "call to " << qPrintable(fctName) << endl;
 #endif
+  /* NB: only called in Design context */
+  if (context != Design) {
+    cout << "Abnormal case: call to " << qPrintable(fctName) << " not in Design context" << endl;
+    return;
+  }
+
 
   if (item->getRefBlock()->isFunctionalBlock()) {
     FunctionalBlock* block = AB_TO_FUN(item->getRefBlock());
@@ -301,6 +345,12 @@ void Dispatcher::renameFunctionalBlock(Context context, BoxItem *item){
 #ifdef DEBUG_FCTNAME
   cout << "call to " << qPrintable(fctName) << endl;
 #endif
+  /* NB: only called in Design context */
+  if (context != Design) {
+    cout << "Abnormal case: call to " << qPrintable(fctName) << " not in Design context" << endl;
+    return;
+  }
+
     
   GroupWidget* win = item->getScene()->getGroupWidget();
   
@@ -340,6 +390,12 @@ void Dispatcher::renameGroupBlock(Context context, GroupItem *item){
 #ifdef DEBUG_FCTNAME
   cout << "call to " << qPrintable(fctName) << endl;
 #endif
+  /* NB: only called in Design context */
+  if (context != Design) {
+    cout << "Abnormal case: call to " << qPrintable(fctName) << " not in Design context" << endl;
+    return;
+  }
+
   
   GroupWidget* win = item->getScene()->getGroupWidget();
   
@@ -386,6 +442,12 @@ void Dispatcher::renameStimuliItem(Context context, StimuliItem *item){
 #ifdef DEBUG_FCTNAME
   cout << "call to " << qPrintable(fctName) << endl;
 #endif
+  /* NB: only called in Design context */
+  if (context != Design) {
+    cout << "Abnormal case: call to " << qPrintable(fctName) << " not in Design context" << endl;
+    return;
+  }
+
     
   GroupWidget* win = item->getScene()->getGroupWidget();
   
@@ -426,6 +488,11 @@ void Dispatcher::renameInterface(Context context, InterfaceItem *item) {
 #ifdef DEBUG_FCTNAME
   cout << "call to " << qPrintable(fctName) << endl;
 #endif
+  /* NB: only called in Design context */
+  if (context != Design) {
+    cout << "Abnormal case: call to " << qPrintable(fctName) << " not in Design context" << endl;
+    return;
+  }
 
   GroupWidget* win = item->getOwner()->getScene()->getGroupWidget();
   
@@ -470,6 +537,12 @@ void Dispatcher::showPatterns(Context context, InterfaceItem *item) {
 #ifdef DEBUG_FCTNAME
   cout << "call to " << qPrintable(fctName) << endl;
 #endif
+  /* NB: only called in Design context */
+  if (context != Design) {
+    cout << "Abnormal case: call to " << qPrintable(fctName) << " not in Design context" << endl;
+    return;
+  }
+
   QString msg = "";
   if (item->refInter->getDirection() == AbstractInterface::Input) {
     msg = "Input pattern of iface ";
@@ -514,6 +587,12 @@ void Dispatcher::showModifier(Context context, InterfaceItem *item) {
 #ifdef DEBUG_FCTNAME
   cout << "call to " << qPrintable(fctName) << endl;
 #endif
+  /* NB: only called in Design context */
+  if (context != Design) {
+    cout << "Abnormal case: call to " << qPrintable(fctName) << " not in Design context" << endl;
+    return;
+  }
+
   QString msg = "";
   ConnectedInterface* assoIface = AI_TO_CON(item->refInter->getAssociatedIface());
   AbstractInputModifier* mod = assoIface->getInputModifier();
@@ -531,10 +610,16 @@ void Dispatcher::showModifier(Context context, InterfaceItem *item) {
 }
 
 void Dispatcher::removeModifier(Context context, InterfaceItem *item) {
-  static QString fctName = "Dispatcher::showModifier()";
+  static QString fctName = "Dispatcher::removeModifier()";
 #ifdef DEBUG_FCTNAME
   cout << "call to " << qPrintable(fctName) << endl;
 #endif
+  /* NB: only called in Design context */
+  if (context != Design) {
+    cout << "Abnormal case: call to " << qPrintable(fctName) << " not in Design context" << endl;
+    return;
+  }
+
 
   ConnectedInterface* assoIface = AI_TO_CON(item->refInter->getAssociatedIface());
   assoIface->clearInputModifier();
@@ -546,6 +631,12 @@ void Dispatcher::duplicateBoxItem(Context context, BoxItem *item){
 #ifdef DEBUG_FCTNAME
   cout << "call to " << qPrintable(fctName) << endl;
 #endif
+  /* NB: only called in Design context */
+  if (context != Design) {
+    cout << "Abnormal case: call to " << qPrintable(fctName) << " not in Design context" << endl;
+    return;
+  }
+
 
   GroupScene *scene = item->getScene();
   AbstractBlock* block = item->getRefBlock();  
@@ -569,6 +660,12 @@ void Dispatcher::duplicateStimuliItem(Context context, StimuliItem *item) {
 #ifdef DEBUG_FCTNAME
   cout << "call to " << qPrintable(fctName) << endl;
 #endif
+  /* NB: only called in Design context */
+  if (context != Design) {
+    cout << "Abnormal case: call to " << qPrintable(fctName) << " not in Design context" << endl;
+    return;
+  }
+
 
   GroupScene *scene = item->getScene();
   AbstractBlock* block = item->getRefBlock();  
@@ -592,6 +689,12 @@ void Dispatcher::duplicateInterfaceItem(Context context, InterfaceItem *item) {
 #ifdef DEBUG_FCTNAME
   cout << "call to " << qPrintable(fctName) << endl;
 #endif
+  /* NB: only called in Design context */
+  if (context != Design) {
+    cout << "Abnormal case: call to " << qPrintable(fctName) << " not in Design context" << endl;
+    return;
+  }
+
 
   AbstractInterface *refI = item->refInter;
   if (! refI->isFunctionalInterface()) return;
@@ -623,13 +726,12 @@ void Dispatcher::duplicateInterfaceItem(Context context, InterfaceItem *item) {
 }
 
 
-BoxItem* Dispatcher::addBlock(Context context, int idCategory, int idBlock, int idScene, QHash<QString, int> clkRstToGen) {
+void Dispatcher::addBlock(Context context, int idCategory, int idBlock, int idScene, QHash<QString, int> clkRstToGen) {
   static QString fctName = "Dispatcher::addBlock()";
 #ifdef DEBUG_FCTNAME
   cout << "call to " << qPrintable(fctName) << endl;
 #endif
-  bool newStimuli = false;
-  BoxItem* item = NULL;
+  bool newStimuli = false;  
 
   /* For now, this method is only used while designing and not loading */
   if (context == Design) {
@@ -644,7 +746,18 @@ BoxItem* Dispatcher::addBlock(Context context, int idCategory, int idBlock, int
     }
     if (newStimuli) {
       FunctionalBlock* newOne = params->getGraph()->createStimuliBlock(ref, true);
-      scene->createStimuliItem(newOne);
+      StimuliItem* item = scene->createStimuliItem(newOne);
+      QHashIterator<QString,int> iter(clkRstToGen);
+      while (iter.hasNext()) {
+        iter.next();
+        AbstractInterface* iface = newOne->getIfaceFromName(iter.key());
+        if (iface->getPurpose() == AbstractInterface::Clock) {
+          connectStimuliItemClock(context,item,iface->getName(),iter.value());
+        }
+        else if (iface->getPurpose() == AbstractInterface::Reset) {
+          connectStimuliItemReset(context,item,iface->getName(),iter.value());
+        }
+      }
     }
     else {
 
@@ -652,27 +765,24 @@ BoxItem* Dispatcher::addBlock(Context context, int idCategory, int idBlock, int
       FunctionalBlock* newOne = params->getGraph()->createFunctionalBlock(group, ref, true);
 
       // creating the box item
-      item = scene->createBoxItem(newOne);
-      if (params->autoConnMainClk) {
-        // for now just use the first one
-        QHashIterator<QString,int> iter(clkRstToGen);
-        while (iter.hasNext()) {
-          iter.next();
-          AbstractInterface* iface = newOne->getIfaceFromName(iter.key());
-          if (iface->getPurpose() == AbstractInterface::Clock) {
-            newOne->connectClock(iface->getName(), iter.value());
-          }
-          else if (iface->getPurpose() == AbstractInterface::Reset) {
-            newOne->connectReset(iface->getName(), iter.value());
-          }
+      BoxItem* item = scene->createBoxItem(newOne);
+
+      QHashIterator<QString,int> iter(clkRstToGen);
+      while (iter.hasNext()) {
+        iter.next();
+        AbstractInterface* iface = newOne->getIfaceFromName(iter.key());
+        if (iface->getPurpose() == AbstractInterface::Clock) {
+          connectBoxItemClock(context,item,iface->getName(),iter.value());
+        }
+        else if (iface->getPurpose() == AbstractInterface::Reset) {
+          connectBoxItemReset(context,item,iface->getName(),iter.value());
         }
       }
+
       params->blockToItem.insert(newOne,item);
     }
     params->unsaveModif = true;
   }
-
-  return item;
 }
 
 void Dispatcher::addClkRstGenBlock(Context context, double frequency) {
@@ -743,13 +853,16 @@ GroupWidget *Dispatcher::createTopScene(Context context, double mainClock){
   cout << "call to " << qPrintable(fctName) << endl;
 #endif
 
-  bool createIfaces = true;
-  if (context == Load) {
-    createIfaces = false;
-  }
+  Graph* graph = NULL;
   // creating the graph and thus, the topgroup
-  Graph* graph = params->initGraph(createIfaces);
-  graph->addClock(mainClock);
+  if (context == Design) {
+    graph = params->initGraph(true);
+    graph->addClock(mainClock);
+  }
+  else if (context == Load) {
+    graph = params->initGraph(false);
+  }
+
   // get the top group
   GroupBlock *topBlock = graph->getTopGroup();
   // creating the top group widget
@@ -1076,8 +1189,11 @@ void Dispatcher::removeBoxItem(Context context, BoxItem *item) {
 #ifdef DEBUG_FCTNAME
   cout << "call to " << qPrintable(fctName) << endl;
 #endif
-
-  if (context != Design) return;
+  /* NB: only called in Design context */
+  if (context != Design) {
+    cout << "Abnormal case: call to " << qPrintable(fctName) << " not in Design context" << endl;
+    return;
+  }
 
   /* a BoxItem (group of func) can be removed only if none of its
      interfaces is connected to a group interface that is itself
@@ -1152,6 +1268,11 @@ void Dispatcher::removeAllBlockConnections(Context context, AbstractBoxItem *ite
 #ifdef DEBUG_FCTNAME
   cout << "call to " << qPrintable(fctName) << endl;
 #endif
+  /* NB: only called in Design context */
+  if (context != Design) {
+    cout << "Abnormal case: call to " <<qPrintable(fctName) << " not in Design context" << endl;
+    return;
+  }
 
   foreach(InterfaceItem* ifaceItem, item->getInterfaces()) {
     foreach(ConnectionItem* conn, ifaceItem->connections) {
@@ -1165,6 +1286,11 @@ void Dispatcher::removeStimuliItem(Context context, StimuliItem *item) {
 #ifdef DEBUG_FCTNAME
   cout << "call to " << qPrintable(fctName) << endl;
 #endif
+  /* NB: only called in Design context */
+  if (context != Design) {
+    cout << "Abnormal case: call to " <<qPrintable(fctName) << " not in Design context" << endl;
+    return;
+  }
   
   QString msg = "Removing stimmuli ";
   
@@ -1188,6 +1314,12 @@ void Dispatcher::removeConnection(Context context, ConnectionItem *connItem) {
 #ifdef DEBUG_FCTNAME
   cout << "call to " << qPrintable(fctName) << endl;
 #endif
+  /* NB: only called in Design context */
+  if (context != Design) {
+    cout << "Abnormal case: call to " <<qPrintable(fctName) << " not in Design context" << endl;
+    return;
+  }
+
   InterfaceItem* fromIfaceItem = connItem->getFromInterfaceItem();
   InterfaceItem* toIfaceItem = connItem->getToInterfaceItem();
 
@@ -1259,6 +1391,164 @@ void Dispatcher::removeConnection(Context context, ConnectionItem *connItem) {
   }
 }
 
+void Dispatcher::connectBoxItemClock(Context context, BoxItem *item, QString clkName, int idGen) throw(Exception) {
+
+  static QString fctName = "Dispatcher::connectBoxItemClock()";
+#ifdef DEBUG_FCTNAME
+  cout << "call to " << qPrintable(fctName) << endl;
+#endif
+  /* NB: only called in Design context */
+  if (context != Design) {
+    cout << "Abnormal case: call to " <<qPrintable(fctName) << " not in Design context" << endl;
+    return;
+  }
+
+  InterfaceItem* fromIfaceItemClk = NULL;
+  InterfaceItem* toIfaceItemClk = item->searchInterfaceItemByName(clkName);
+  GroupItem* parentGroup = item->getScene()->getGroupItem();
+  BoxItem* clkrstItem = NULL;
+
+  if (parentGroup->getRefBlock()->isTopGroupBlock()) {
+    QString genName = "clkrstgen_" + QString::number(idGen);
+    clkrstItem = item->getScene()->searchBoxItemByName(genName);
+    if (clkrstItem == NULL) {
+      throw(Exception(IFACE_TOP_NOCLKRSTGEN));
+    }
+    else {
+      fromIfaceItemClk = clkrstItem->searchInterfaceItemByName("clk");
+    }
+    cout << "connecting clock of " << qPrintable(item->getRefBlock()->getName()) << " to clk of " << qPrintable(genName) << endl;
+  }
+  else {
+    // searching for ext_clk_idGen
+    QString name = "ext_clk_"+QString::number(idGen);
+    fromIfaceItemClk = parentGroup->searchInterfaceItemByName(name);
+    cout << "connecting clock of " << qPrintable(item->getRefBlock()->getName()) << " to " << qPrintable(name) << " of parent group " << qPrintable(parentGroup->getRefBlock()->getName()) << endl;
+  }
+
+  if (fromIfaceItemClk == NULL) {
+    throw(Exception(IFACE_GROUP_NOCLKRST));
+  }
+  else {
+    createConnection(context, fromIfaceItemClk, toIfaceItemClk, false);
+    cout << "connection done."  << endl;
+  }
+}
+
+void Dispatcher::connectBoxItemReset(Context context, BoxItem *item, QString rstName, int idGen) throw(Exception) {
+
+  static QString fctName = "Dispatcher::connectBoxItemReset()";
+#ifdef DEBUG_FCTNAME
+  cout << "call to " << qPrintable(fctName) << endl;
+#endif
+  /* NB: only called in Design context */
+  if (context != Design) {
+    cout << "Abnormal case: call to " <<qPrintable(fctName) << " not in Design context" << endl;
+    return;
+  }
+
+  InterfaceItem* fromIfaceItemRst = NULL;
+  InterfaceItem* toIfaceItemRst = item->searchInterfaceItemByName(rstName);
+  GroupItem* parentGroup = item->getScene()->getGroupItem();
+  BoxItem* clkrstItem = NULL;
+
+  if (parentGroup->getRefBlock()->isTopGroupBlock()) {
+    QString genName = "clkrstgen_" + QString::number(idGen);
+    clkrstItem = item->getScene()->searchBoxItemByName(genName);
+    if (clkrstItem == NULL) {
+      throw(Exception(IFACE_TOP_NOCLKRSTGEN));
+    }
+    else {
+      fromIfaceItemRst = clkrstItem->searchInterfaceItemByName("reset");
+    }
+    cout << "connecting reset of " << qPrintable(item->getRefBlock()->getName()) << " to reset of " << qPrintable(genName) << endl;
+  }
+  else {
+    // searching for ext_rst_idGen
+    QString name = "ext_rst_"+QString::number(idGen);
+    fromIfaceItemRst = parentGroup->searchInterfaceItemByName(name);
+    cout << "connecting reset of " << qPrintable(item->getRefBlock()->getName()) << " to " << qPrintable(name) << " of parent group " << qPrintable(parentGroup->getRefBlock()->getName()) << endl;
+  }
+
+  if (fromIfaceItemRst == NULL) {
+    throw(Exception(IFACE_GROUP_NOCLKRST));
+  }
+  else {
+    createConnection(context, fromIfaceItemRst, toIfaceItemRst, false);
+    cout << "connection done."  << endl;
+  }
+}
+
+void Dispatcher::connectStimuliItemClock(Context context, StimuliItem *item, QString clkName, int idGen) throw(Exception) {
+
+  static QString fctName = "Dispatcher::connectStimuliItemClock()";
+#ifdef DEBUG_FCTNAME
+  cout << "call to " << qPrintable(fctName) << endl;
+#endif
+  /* NB: only called in Design context */
+  if (context != Design) {
+    cout << "Abnormal case: call to " <<qPrintable(fctName) << " not in Design context" << endl;
+    return;
+  }
+
+  InterfaceItem* fromIfaceItemClk = NULL;
+  InterfaceItem* toIfaceItemClk = item->searchInterfaceItemByName(clkName);
+  BoxItem* clkrstItem = NULL;
+
+  QString genName = "clkrstgen_" + QString::number(idGen);
+  clkrstItem = item->getScene()->searchBoxItemByName(genName);
+  if (clkrstItem == NULL) {
+    throw(Exception(IFACE_TOP_NOCLKRSTGEN));
+  }
+  else {
+    fromIfaceItemClk = clkrstItem->searchInterfaceItemByName("clk");
+  }
+  cout << "connecting clock of " << qPrintable(item->getRefBlock()->getName()) << " to clock of " << qPrintable(genName) << endl;
+
+  if (fromIfaceItemClk == NULL) {
+    throw(Exception(IFACE_GROUP_NOCLKRST));
+  }
+  else {
+    createConnection(context, fromIfaceItemClk, toIfaceItemClk, false);
+    cout << "connection done."  << endl;
+  }
+}
+
+void Dispatcher::connectStimuliItemReset(Context context, StimuliItem *item, QString rstName, int idGen) throw(Exception) {
+  static QString fctName = "Dispatcher::connectStimuliItemReset()";
+#ifdef DEBUG_FCTNAME
+  cout << "call to " << qPrintable(fctName) << endl;
+#endif
+  /* NB: only called in Design context */
+  if (context != Design) {
+    cout << "Abnormal case: call to " <<qPrintable(fctName) << " not in Design context" << endl;
+    return;
+  }
+
+  InterfaceItem* fromIfaceItemRst = NULL;
+  InterfaceItem* toIfaceItemRst = item->searchInterfaceItemByName(rstName);
+  BoxItem* clkrstItem = NULL;
+
+  QString genName = "clkrstgen_" + QString::number(idGen);
+  clkrstItem = item->getScene()->searchBoxItemByName(genName);
+  if (clkrstItem == NULL) {
+    throw(Exception(IFACE_TOP_NOCLKRSTGEN));
+  }
+  else {
+    fromIfaceItemRst = clkrstItem->searchInterfaceItemByName("reset");
+  }
+  cout << "connecting reset of " << qPrintable(item->getRefBlock()->getName()) << " to reset of " << qPrintable(genName) << endl;
+
+  if (fromIfaceItemRst == NULL) {
+    throw(Exception(IFACE_GROUP_NOCLKRST));
+  }
+  else {
+    createConnection(context, fromIfaceItemRst, toIfaceItemRst, false);
+    cout << "connection done."  << endl;
+  }
+}
+
+
 void Dispatcher::showBlocksLibrary(){
   cout << "showing block library" << endl;
   mainWindow->getLibrary()->show();
@@ -1266,6 +1556,17 @@ void Dispatcher::showBlocksLibrary(){
 }
 
 void Dispatcher::showProperties(Context context, InterfaceItem *inter) {
+
+  static QString fctName = "Dispatcher::showProperties()";
+#ifdef DEBUG_FCTNAME
+  cout << "call to " << qPrintable(fctName) << endl;
+#endif
+  /* NB: only called in Design context */
+  if (context != Design) {
+    cout << "Abnormal case: call to " <<qPrintable(fctName) << " not in Design context" << endl;
+    return;
+  }
+
   QDialog* dial = new InterfacePropertiesDialog(inter);
   dial->exec();
 }
@@ -1278,6 +1579,16 @@ void Dispatcher::showProperties(Context context, InterfaceItem *inter) {
 */
 void Dispatcher::connectInterToGroup(Context context, InterfaceItem *item){
 
+  static QString fctName = "Dispatcher::connectInterToGroup()";
+#ifdef DEBUG_FCTNAME
+  cout << "call to " << qPrintable(fctName) << endl;
+#endif
+  /* NB: only called in Design context */
+  if (context != Design) {
+    cout << "Abnormal case: call to " <<qPrintable(fctName) << " not in Design context" << endl;
+    return;
+  }
+
   // getting the GroupBlock and GroupItem that are parent of the block that owns item
   ConnectedInterface *refInter = item->refInter;
   cout << "owner of iface = " << qPrintable(refInter->getOwner()->getName()) << endl;
@@ -1299,7 +1610,12 @@ void Dispatcher::connectInterToGroup(Context context, InterfaceItem *item){
   parentItem->addInterfaceItem(groupIfaceItem,true);
 
   // creating the connection, in graph and with an item
-  createConnection(context, item, groupIfaceItem);
+  /* NOTE:
+     Since the group interface is for now unconnected, it is impossible to determine
+     its clock domain. Thus, the connection must be created without testing the clock domain
+     consistency. For that, we cheat by changing the context to Load because it implies no clock test.
+   */
+  createConnection(Load, item, groupIfaceItem);
 
   // if groupItem is not topGroup, must also add a new interface to the parent BlockItem
   BoxItem* parent2Item = parentItem->getParentItem();
@@ -1319,6 +1635,11 @@ void Dispatcher::removeFunctionalInterface(Context context, InterfaceItem *item)
 #ifdef DEBUG_FCTNAME
   cout << "call to " << qPrintable(fctName) << endl;
 #endif
+  /* NB: only called in Design context */
+  if (context != Design) {
+    cout << "Abnormal case: call to " <<qPrintable(fctName) << " not in Design context" << endl;
+    return;
+  }
 
   /* first, remove all connections from item
      NB:  if there is a connection to a group interface, then this
@@ -1342,6 +1663,11 @@ void Dispatcher::removeGroupInterface(Context context, InterfaceItem *item) {
 #ifdef DEBUG_FCTNAME
   cout << "call to " << qPrintable(fctName) << endl;
 #endif
+  /* NB: only called in Design context */
+  if (context != Design) {
+    cout << "Abnormal case: call to " <<qPrintable(fctName) << " not in Design context" << endl;
+    return;
+  }
 
   /* NB: just remove all connections from/to this item, since when there are no more
      ones to a GroupItem, it is automatically deleted.
@@ -1420,6 +1746,11 @@ void Dispatcher::findGraphModifications(Context context, FunctionalBlock *block)
 #ifdef DEBUG_FCTNAME
   cout << "call to " << qPrintable(fctName) << endl;
 #endif
+  /* NB: only called in Design context */
+  if (context != Design) {
+    cout << "Abnormal case: call to " <<qPrintable(fctName) << " not in Design context" << endl;
+    return;
+  }
 
   block->computeAdmittanceDelays();
   // get the block item that is associated to block