Unified time base now so both GVRET and Socketcan devices yield timestamps in microseconds since the program started or clear was pressed, fixed frames per second display, fixed timestamps for sent frames

mainwindow.cpp

@@ -477,8 +477,8 @@ void MainWindow::filterClearAll()
 void MainWindow::tickGUIUpdate()
 {
     rxFrames = model->sendBulkRefresh();
-    if(rxFrames>0)
-    {
+    //if(rxFrames>0)
+    //{
         int elapsed = elapsedTime->elapsed();
         if(elapsed) {
             framesPerSec = rxFrames * 1000 / elapsed;
@@ -499,7 +499,7 @@ void MainWindow::tickGUIUpdate()
         if (model->needsFilterRefresh()) updateFilterList();
 
         rxFrames = 0;
-    }
+    //}
 }
 
 void MainWindow::gotFrames(int framesSinceLastUpdate)
@@ -533,6 +533,7 @@ void MainWindow::clearFrames()
 {
     ui->canFramesView->scrollToTop();
     model->clearFrames();
+    CANConManager::getInstance()->resetTimeBasis();
     ui->lbNumFrames->setText(QString::number(model->rowCount()));
     bDirty = false;
     loadedFileName = "";