Index: firmware/App/Services/Comm.h
===================================================================
diff -u -rba60692a9ecaf59cb5cb8490f4276917f43bcd01 -rc74c1d99a011dd0fb7f98f183faecda675221fce
--- firmware/App/Services/Comm.h	(.../Comm.h)	(revision ba60692a9ecaf59cb5cb8490f4276917f43bcd01)
+++ firmware/App/Services/Comm.h	(.../Comm.h)	(revision c74c1d99a011dd0fb7f98f183faecda675221fce)
@@ -1,15 +1,20 @@
-/*
- * Comm.h
- *
- *  Created on: Aug 19, 2024
- *      Author: fw
- */
 
 #ifndef __COMM_H__
 #define __COMM_H__
 
 #include "BLCommon.h"
 
+/**
+ *  @defgroup CommInterrupts CommInterrupts
+ *  @brief The communication unit provides low level comm signal,
+ *  status, and some interrupt handling functions.
+ *
+ *  @addtogroup CommInterrupts
+ *  @{
+ */
+
+// ********** public definitions **********
+
 #define SCI_DMA_TRANSMIT_INT            0x00010000      ///< Bit mask for setting/clearing serial DMA transmit interrupts.
 #define SCI_DMA_RECEIVE_INT             0x00060000      ///< Bit mask for setting/clearing serial DMA receive interrupts.
 
@@ -18,4 +23,6 @@
 void clearSCI2DMAReceiveInterrupt( void );
 void clearSCI2DMATransmitInterrupt( void );
 
+/**@}*/
+
 #endif