[chronojump] ChangeMultitestFirmware works perfectly now

[Xavier de Blas <xaviblas src gnome org>]

commit 99b6d803cbc583c9d234c308ed0339cc44dfe668
Author: Xavier de Blas <xaviblas gmail com>
Date:   Thu Oct 20 10:00:52 2016 +0200

    ChangeMultitestFirmware works perfectly now

 src/chronopicDetect.cs |   56 ++++++++++++++++++++++++++++++++++++++++++++---
 1 files changed, 52 insertions(+), 4 deletions(-)
---
diff --git a/src/chronopicDetect.cs b/src/chronopicDetect.cs
index 47237b2..aa0699f 100644
--- a/src/chronopicDetect.cs
+++ b/src/chronopicDetect.cs
@@ -324,13 +324,57 @@ public abstract class ChronopicAuto
 
                if (sp == null) 
                        return false;
+
+               if (sp.IsOpen)
+               {
+                       LogB.Information("Port is opened. flushing ... ");
+                       byte[] buffer = new byte[256];
+                       for (int count = 0; count < 1; count ++) //flush by reading buffer or timeout 1 time
+                       {
+                               try{
+                                       sp.Read(buffer,0,256);
+                                       LogB.Debug(" spReaded ");
+                               } catch {
+                                       LogB.Warning(" catchedTimeOut ");
+                               }
+                               count ++;
+                       }
+
+                       LogB.Information("flushed");
+               } else {
+                       LogB.Information("Port is closed. Opening ... ");
+                       sp.Open();
+               }
+
+               LogB.Information("ready!");
+
+               if(IsEncoder)
+                       setEncoderBauds();
+
+               str = "";
+               return true;
+       }
+
+       /*
+        * this method closes the port to "flush" but this doesn't work always
+        * is best to use above method that does an explicit flush
+        *
+       private bool makeOld(SerialPort sp)
+       {
+               this.sp = sp;
+
+               if (sp == null)
+                       return false;
        
-               LogB.Information("opening port... ");
                try {   
                        if (sp != null) 
-                               if (sp.IsOpen)
+                               if (sp.IsOpen) {
+                                       LogB.Information("Port is opened. Closing ... ");
                                        sp.Close(); //close to ensure no bytes are comming
+                                       LogB.Information("closed");
+                               }
 
+                       LogB.Information("opening port... ");
                        sp.Open();
                } catch {
                        LogB.Warning("catched!");
@@ -344,6 +388,8 @@ public abstract class ChronopicAuto
                str = "";
                return true;
        }
+       */
+
        private void close(SerialPort sp) {
                LogB.Information("closing port... ");
                sp.Close();
@@ -372,7 +418,8 @@ public abstract class ChronopicAuto
                        flush();
                        */
 
-               close(sp);
+               //better don't close it
+               //close(sp);
                
                return str;
        }
@@ -401,7 +448,8 @@ public abstract class ChronopicAuto
                        flush();
                        */
                
-               close(sp);
+               //better don't close it
+               //close(sp);
                
                return str;
        }