From 5a5f8493f2607e3dc03fe0b9caecae4ab41790bb Mon Sep 17 00:00:00 2001
From: Milan Hanajik <milan.hanajik@xyleminc.com>
Date: Sun, 23 Jan 2022 13:18:36 +0100
Subject: [PATCH] IperlHead : Simultaneous serial port flushing after switching
 to the test  mode.

---
 .../TestMethods/iPerlCommunication/iPerlHead/IperlHead.cs   | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/TBF/Rig/TestMethods/iPerlCommunication/iPerlHead/IperlHead.cs b/TBF/Rig/TestMethods/iPerlCommunication/iPerlHead/IperlHead.cs
index 99fab1f46..9175a741c 100644
--- a/TBF/Rig/TestMethods/iPerlCommunication/iPerlHead/IperlHead.cs
+++ b/TBF/Rig/TestMethods/iPerlCommunication/iPerlHead/IperlHead.cs
@@ -444,7 +444,11 @@ namespace TBF.Rig.TestMethods.iPerlCommunication.iPerlHead
 			Q2ErrWOCorrection = 0;
 			Q2CorrRL = 0;
             Q2CorrLR = 0;
-			
+
+            if (optoSerialPort != null && optoSerialPort.IsOpen)
+            {
+                optoSerialPort.DiscardInBuffer();
+            }
             StartDataStreamProcessing();
 
             currentFlowDir = InitFlowDir;