diff --git a/src/framedreader.cpp b/src/framedreader.cpp
--- a/src/framedreader.cpp
+++ b/src/framedreader.cpp
@@ -1,5 +1,5 @@
 /*
-  Copyright © 2016 Hasan Yavuz Özderya
+  Copyright © 2017 Hasan Yavuz Özderya
 
   This file is part of serialplot.
 
@@ -310,14 +310,7 @@ void FramedReader::readFrameDataAndCheck
     if (!checksumEnabled || checksumPassed)
     {
         // commit data
-        for (unsigned int ci = 0; ci < _numOfChannels; ci++)
-        {
-            _channelMan->addChannelData(
-                ci,
-                channelSamples + ci*numOfPackagesToRead,
-                numOfPackagesToRead);
-            sampleCount += numOfPackagesToRead;
-        }
+        _channelMan->addData(channelSamples, numOfPackagesToRead * _numOfChannels);
         emit dataAdded();
     }
     else