From 750f20a9d6a324ed781761ae211d411ca40bd79e Mon Sep 17 00:00:00 2001
From: canpadawan <canpadawan@users.noreply.github.com>
Date: Tue, 31 May 2016 14:52:49 +0200
Subject: [PATCH] bug fix when elaspedTime is 0

---
 serialworker.cpp | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/serialworker.cpp b/serialworker.cpp
index d70fc6c..85c7ec6 100644
--- a/serialworker.cpp
+++ b/serialworker.cpp
@@ -447,8 +447,14 @@ void SerialWorker::handleTick()
         }
     }
 
-    framesPerSec += gotFrames * 1000 / elapsedTime->elapsed() - (framesPerSec / 4);
-    elapsedTime->restart();
+    int elapsed = elapsedTime->elapsed();
+    if(elapsed) {
+        framesPerSec += gotFrames * 1000 / elapsed - (framesPerSec / 4);
+        elapsedTime->restart();
+    }
+    else
+        framesPerSec = 0;
+
     emit frameUpdateTick(framesPerSec / 4, gotFrames); //sends stats to interested parties
     canModel->sendBulkRefresh(gotFrames);
     gotFrames = 0;