Index: Utilities.c
===================================================================
diff -u -r85db35aef9a57d1efc02bb3b42fc802b65aa3646 -r0f1d0c443daee3e30ae823711e85f3410bbf49fe
--- Utilities.c	(.../Utilities.c)	(revision 85db35aef9a57d1efc02bb3b42fc802b65aa3646)
+++ Utilities.c	(.../Utilities.c)	(revision 0f1d0c443daee3e30ae823711e85f3410bbf49fe)
@@ -1,14 +1,14 @@
 /**************************************************************************
 *
-* Copyright (c) 2019-2020 Diality Inc. - All Rights Reserved.
+* Copyright (c) 2019-2021 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.c
 *
-* @author (last) Sean Nash
-* @date (last) 24-Sep-2020
+* @author (last) Quang Nguyen
+* @date (last) 23-Nov-2020
 *
 * @author (original) Sean
 * @date (original) 17-Feb-2020
@@ -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 **********
 
@@ -401,5 +405,37 @@
     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;
+}
 
 /**@}*/