Index: Timers.c
===================================================================
diff -u -r62f81f0f9649926feae18dc09da001690dbcd26e -rbe2f042ab3fbb84ed87ca44577e123464b7281ae
--- Timers.c	(.../Timers.c)	(revision 62f81f0f9649926feae18dc09da001690dbcd26e)
+++ Timers.c	(.../Timers.c)	(revision be2f042ab3fbb84ed87ca44577e123464b7281ae)
@@ -1,4 +1,4 @@
-/**************************************************************************
+/**********************************************************************//**
  *
  *  Copyright (c) 2019-2020 Diality Inc. - All Rights Reserved.
  *
@@ -16,55 +16,57 @@
 
 #include "Timers.h"
 
+/**
+ *  @addtogroup Timers
+ *  @{
+ */
+
 // ********** private definitions **********
 
 // ********** private data **********
 
-static U32 msTimerCount = 0;
+static U32 msTimerCount = 0;            ///< 1ms timer counter incremented by TaskTimer.c.
 
-/*************************************************************************
+/*********************************************************************//**
  * @brief
  * The initTimers function initializes the Timers module.
  * @details
  * Inputs : none
  * Outputs : Timers module initialized.
- * @param none
  * @return none
  *************************************************************************/
 void initTimers( void )
 {
     msTimerCount = 0;
 }
 
-/*************************************************************************
+/*********************************************************************//**
  * @brief
  * The incMSTimerCount function increments the ms timer count.
  * @details
  * Inputs : none
  * Outputs : msTimerCount incremented
- * @param none
  * @return none
  *************************************************************************/
 void incMSTimerCount( void )
 {
     msTimerCount++;
 }
 
-/*************************************************************************
+/*********************************************************************//**
  * @brief
  * The getMSTimerCount function returns the current ms timer count.
  * @details
  * Inputs : msTimerCount
  * Outputs : none
- * @param none
  * @return msTimerCount
  *************************************************************************/
 U32 getMSTimerCount( void )
 {
     return msTimerCount;
 }
 
-/*************************************************************************
+/*********************************************************************//**
  * @brief
  * The didTimeout function determines whether a timeout has occurred between \n
  * a given start count and a given timeout period (in ms).
@@ -102,7 +104,7 @@
     return result;
 }
 
-/*************************************************************************
+/*********************************************************************//**
  * @brief
  * The calcTimeSince function calculates the time (in ms) from a given start \n
  * time until now.
@@ -130,7 +132,7 @@
     return result;
 }
 
-/*************************************************************************
+/*********************************************************************//**
  * @brief
  * The calcTimeBetween function calculates the time (in ms) from a given start \n
  * time until a given end time.
@@ -158,3 +160,5 @@
     return result;
 }
 
+/**@}*/
+
Index: Timers.h
===================================================================
diff -u -r62f81f0f9649926feae18dc09da001690dbcd26e -rbe2f042ab3fbb84ed87ca44577e123464b7281ae
--- Timers.h	(.../Timers.h)	(revision 62f81f0f9649926feae18dc09da001690dbcd26e)
+++ Timers.h	(.../Timers.h)	(revision be2f042ab3fbb84ed87ca44577e123464b7281ae)
@@ -1,4 +1,4 @@
-/**************************************************************************
+/**********************************************************************//**
  *
  *  Copyright (c) 2019-2020 Diality Inc. - All Rights Reserved.
  *
@@ -10,7 +10,7 @@
  *  @date 25-Sep-2019
  *  @author S. Nash
  *
- *  @brief header file for Timers service .
+ *  @brief header file for Timers service module.
  *
  **************************************************************************/
 
@@ -19,6 +19,15 @@
 
 #include "Common.h"
 
+/**
+ *  @defgroup Timers Timers
+ *  @brief Timers service module.  Provides timer utility functions based on
+ *  a 1ms timer counter incremented by TaskTimer.c.
+ *
+ *  @addtogroup Timers
+ *  @{
+ */
+
 // ********** public function prototypes **********
 
 void initTimers( void );
@@ -28,4 +37,6 @@
 U32 calcTimeSince( U32 startMSCount );
 U32 calcTimeBetween( U32 startMSCount, U32 endMSCount );
 
+/**@}*/
+
 #endif