Index: Utilities.c
===================================================================
diff -u -rcd1dbf44ebce97f61ad4a757d47449562ec366f0 -r4b3e011f99900660c9c9f23d3ea50a07cb61e64b
--- Utilities.c	(.../Utilities.c)	(revision cd1dbf44ebce97f61ad4a757d47449562ec366f0)
+++ Utilities.c	(.../Utilities.c)	(revision 4b3e011f99900660c9c9f23d3ea50a07cb61e64b)
@@ -26,8 +26,12 @@
 
 // ********** private definitions **********
 
-#define INITIAL_CRC16_VAL 0xFFFF                ///< Seed for 16-bit CRC function
-#define INITIAL_CRC08_VAL 0x00                  ///< Seed for 8-bit CRC function
+#define INITIAL_CRC16_VAL       0xFFFF                ///< Seed for 16-bit CRC function
+#define INITIAL_CRC08_VAL       0x00                  ///< Seed for 8-bit CRC function
+
+#define ASCII_CODE_LETTER_A     0x41                  ///< ASCII code in hex for letter A.
+#define ASCII_CODE_NUMBER_ZERO  0x30                  ///< ASCII code in hex for number zero.
+#define ASCII_CODE_NUMBER_SEVEN 0x37                  ///< ASCII code in hex for number seven.
 
 // ********** private data **********
 
@@ -371,5 +375,37 @@
     data->comp = ~data->data.uInt;
     _enable_IRQ();
 }
+
+/*********************************************************************//**
+ * @brief
+ * The hexStrToDec function convert hex string to decimal value.
+ * @details Inputs: none
+ * @details Outputs: none
+ * @param valuePtr pointer to hex string to convert
+ * @param size size of the hex string to convert
+ * @return converted value of hex string
+ *************************************************************************/
+U32 hexStrToDec( U08 const * const valuePtr, U08 size )
+{
+    U08 ii;
+    U08 value;
+    U32 result = 0;
+
+    for ( ii = 0; ii < size; ++ii )
+    {
+        if ( valuePtr[ii] < ASCII_CODE_LETTER_A )
+        {
+            value = ( valuePtr[ii] - ASCII_CODE_NUMBER_ZERO );
+            result = ( result << 4 ) | value;
+        }
+        else
+        {
+            value = ( valuePtr[ii] - ASCII_CODE_NUMBER_SEVEN );
+            result = ( result << 4 ) | value;
+        }
+    }
+
+    return result;
+}
 
 /**@}*/
Index: Utilities.h
===================================================================
diff -u -r7ff7e715f7a15da5f4055b33e186d58cf96fe909 -r4b3e011f99900660c9c9f23d3ea50a07cb61e64b
--- Utilities.h	(.../Utilities.h)	(revision 7ff7e715f7a15da5f4055b33e186d58cf96fe909)
+++ Utilities.h	(.../Utilities.h)	(revision 4b3e011f99900660c9c9f23d3ea50a07cb61e64b)
@@ -89,7 +89,8 @@
 CRITICAL_DATAS_T getCriticalData( CRITICAL_DATA_T *data );
 BOOL setCriticalData( CRITICAL_DATA_T *data, CRITICAL_DATAS_T value );
 BOOL isCriticalDataInRange( CRITICAL_DATA_T *data );
-void resetCriticalData( CRITICAL_DATA_T *data );
+void resetCriticalData( CRITICAL_DATA_T *data );
+U32 hexStrToDec( U08 const * const valuePtr, U08 size );
 
 /**@}*/