--- PamelaDigitizer/DigitizeCalo.cxx	2009/10/16 09:15:49	1.3
+++ PamelaDigitizer/DigitizeCalo.cxx	2009/11/13 09:08:53	1.4
@@ -865,12 +865,14 @@
     //
     // Write the correct length 
     //
-    fDataCALO[fSecPointer+1] = fCALOlength-fSecPointer+1 ;
+    fDataCALO[fSecPointer+1] = (fCALOlength-fSecPointer+1)-2 ;
+    // total length of the packet: -2: because the words with status and length are not included
     fDataCALO[fNofTStripsPointer] = NofTransmittedStrips ;
     //
     // here we calculate and save the CRC
     //
     Short_t CRC = 0;
+    fDataCALO[fCALOlength] =0 ; 
     for (UInt_t i=0; i<(fCALOlength-fSecPointer); i++){
       CRC=crc(CRC,fDataCALO[i+fSecPointer]);
     };