Index: Utilities.h
===================================================================
diff -u -r810dd01b8fa7d5864adea6aaf13c43c61f2c889b -r1a2123e2152f5290cae14add017ca258770b2ee2
--- Utilities.h	(.../Utilities.h)	(revision 810dd01b8fa7d5864adea6aaf13c43c61f2c889b)
+++ Utilities.h	(.../Utilities.h)	(revision 1a2123e2152f5290cae14add017ca258770b2ee2)
@@ -1,17 +1,17 @@
 /**************************************************************************
 *
-* Copyright (c) 2019-2020 Diality Inc. - All Rights Reserved.
+* Copyright (c) 2020-2022 Diality Inc. - All Rights Reserved.
 *
 * THIS CODE MAY NOT BE COPIED OR REPRODUCED IN ANY FORM, IN PART OR IN
 * WHOLE, WITHOUT THE EXPLICIT PERMISSION OF THE COPYRIGHT OWNER.
 *
-* @file Utilities.h
+* @file    Utilities.h
 *
-* @author (last) Sean Nash
-* @date (last) 04-Sep-2020
+* @author  (last)      Sean Nash
+* @date    (last)      13-Aug-2021
 *
-* @author (original) Sean
-* @date (original) 17-Feb-2020
+* @author  (original)  Sean
+* @date    (original)  17-Feb-2020
 *
 ***************************************************************************/
 
@@ -36,7 +36,6 @@
 {
     TIME_WINDOWED_COUNT_BAD_MSG_CRC = 0,                    ///< Bad message CRC
     TIME_WINDOWED_COUNT_CAN_WARNING,                        ///< CAN warning
-    TIME_WINDOWED_COUNT_CAN_PASSIVE,                        ///< CAN passive mode
     TIME_WINDOWED_COUNT_CAN_OFF,                            ///< CAN off
     TIME_WINDOWED_COUNT_CAN_PARITY,                         ///< CAN parity error
     TIME_WINDOWED_COUNT_FPGA_UART_FRAME_ERROR,              ///< FPGA UART frame error
@@ -81,7 +80,8 @@
 } CRITICAL_DATA_T;
 
 // ********** public function prototypes **********
-
+
+U32 crc32( U32 const initialValue, const U08 *address, U32 len );
 U16 crc16( const U08 *address, U32 len );
 U08 crc8( const U08 *address, U32 len );
 U32 u32DiffWithWrap( U32 start, U32 end );
@@ -94,7 +94,8 @@
 BOOL setCriticalData( CRITICAL_DATA_T *data, CRITICAL_DATAS_T value );
 BOOL isCriticalDataInRange( CRITICAL_DATA_T *data );
 void resetCriticalData( CRITICAL_DATA_T *data );
-U32 hexStrToDec( U08 const * const valuePtr, U08 size );
+U32 hexStrToDec( U08 const * const valuePtr, U08 size );
+BOOL isCriticalDataSet( CRITICAL_DATA_T *data );                                    ///< Determines if critcal data has been set.
 
 /**@}*/