Index: Utilities.h
===================================================================
diff -u -r62f81f0f9649926feae18dc09da001690dbcd26e -rcfd81ad59f6a5ccece4a3e0dc24c9601f7a13259
--- Utilities.h	(.../Utilities.h)	(revision 62f81f0f9649926feae18dc09da001690dbcd26e)
+++ Utilities.h	(.../Utilities.h)	(revision cfd81ad59f6a5ccece4a3e0dc24c9601f7a13259)
@@ -17,12 +17,42 @@
 #ifndef __UTILITIES_H__
 #define __UTILITIES_H__
 
+/**
+ *  @defgroup Utilities Utilities
+ *  @brief Utilities module contains various utility functions.
+ *
+ *  @addtogroup Utilities
+ *  @{
+ */
+
 // ********** public definitions **********
 
+#define MAX_TIME_WINDOWED_COUNT         5           ///< Maximum # of counts that a time windowed count can count to.
 
+/// Enumeration of time-windowed counts.
+typedef enum TimeWindowedCounts
+{
+    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.
+    TIME_WINDOWED_COUNT_FPGA_UART_OVERRUN,          ///< FPGA UART overrun error.
+#ifdef _HD_
+#endif
+#ifdef _DG_
+#endif
+    NUM_OF_TIME_WINDOWED_COUNTS                     ///< Number of pressure sensors.
+} TIME_WINDOWED_COUNT_T;
+
 // ********** public function prototypes **********
 
 U16 crc16( const U08 *address, U32 len );
 U08 crc8( const U08 *address, U32 len );
+void initTimeWindowedCount( TIME_WINDOWED_COUNT_T cnt, U32 maxCnt, U32 winMs );
+BOOL incTimeWindowedCount( TIME_WINDOWED_COUNT_T cnt );
 
+/**@}*/
+
 #endif