diff --git a/parameterdump/tcpackettosend.cpp b/parameterdump/tcpackettosend.cpp
new file mode 100644
--- /dev/null
+++ b/parameterdump/tcpackettosend.cpp
@@ -0,0 +1,60 @@
+#include "tcpackettosend.h"
+
+TCPacketToSend::TCPacketToSend(QObject *parent) :
+    QObject(parent)
+{
+    initLookUpTableForCRC();
+}
+
+void TCPacketToSend::initLookUpTableForCRC( void )
+{
+    unsigned int i;
+    unsigned int tmp;
+
+    for (i=0; i<256; i++)
+    {
+        tmp = 0;
+        if((i & 1) != 0) {
+            tmp = tmp ^ 0x1021;
+        }
+        if((i & 2) != 0) {
+            tmp = tmp ^ 0x2042;
+        }
+        if((i & 4) != 0) {
+            tmp = tmp ^ 0x4084;
+        }
+        if((i & 8) != 0) {
+            tmp = tmp ^ 0x8108;
+        }
+        if((i & 16) != 0) {
+            tmp = tmp ^ 0x1231;
+        }
+        if((i & 32) != 0) {
+            tmp = tmp ^ 0x2462;
+        }
+        if((i & 64) != 0) {
+            tmp = tmp ^ 0x48c4;
+        }
+        if((i & 128) != 0) {
+            tmp = tmp ^ 0x9188;
+        }
+        lookUpTableForCRC[i] = tmp;
+    }
+}
+
+void TCPacketToSend::GetCRCAsTwoBytes(unsigned char* data, unsigned char* crcAsTwoBytes, unsigned int sizeOfData)
+{
+    unsigned int Chk;
+    unsigned int j;
+    Chk = 0xffff; // reset the syndrom to all ones
+    for (j=0; j<sizeOfData; j++) {
+        Chk = Crc_opt(data[j], Chk);
+    }
+    crcAsTwoBytes[0] = (unsigned char) (Chk >> 8);
+    crcAsTwoBytes[1] = (unsigned char) (Chk & 0x00ff);
+}
+
+unsigned int TCPacketToSend::Crc_opt( unsigned char D, unsigned int Chk)
+{
+    return(((Chk << 8) & 0xff00)^lookUpTableForCRC [(((Chk >> 8)^D) & 0x00ff)]);
+}
diff --git a/parameterdump/tcpackettosend.h b/parameterdump/tcpackettosend.h
new file mode 100644
--- /dev/null
+++ b/parameterdump/tcpackettosend.h
@@ -0,0 +1,27 @@
+#ifndef TCPACKETTOSEND_H
+#define TCPACKETTOSEND_H
+
+#include <QObject>
+
+#include <TC_types.h>
+
+class TCPacketToSend : public QObject
+{
+    Q_OBJECT
+public:
+    explicit TCPacketToSend(QObject *parent = 0);
+
+    unsigned char calculateDataCRC(char *data, int nbBytes);
+    void initLookUpTableForCRC( void );
+
+    void GetCRCAsTwoBytes(unsigned char* data, unsigned char* crcAsTwoBytes, unsigned int sizeOfData);
+    unsigned int Crc_opt( unsigned char D, unsigned int Chk);
+    unsigned int lookUpTableForCRC[256];
+    
+signals:
+    
+public slots:
+    
+};
+
+#endif // TCPACKETTOSEND_H