Index: App/Services/SystemComm.c
===================================================================
diff -u -r1d856a336fbfdc72a1e1165b64f1725e497c5f65 -ra0f8a69651a1c29c9f76894aed5ab23ee8ace7c7
--- App/Services/SystemComm.c	(.../SystemComm.c)	(revision 1d856a336fbfdc72a1e1165b64f1725e497c5f65)
+++ App/Services/SystemComm.c	(.../SystemComm.c)	(revision a0f8a69651a1c29c9f76894aed5ab23ee8ace7c7)
@@ -378,19 +378,24 @@
                 {
                     // consume message (+sync byte)
                     msgSize = getFromCommBuffer( CAN_IN_BUFFERS[i], data, msgSize+1 );
+                    // if message data is at least minimum size, convert received message data to a message and add to message queue
                     if ( msgSize > MESSAGE_OVERHEAD_SIZE )
                     {
                         MESSAGE_WRAPPER_T rcvMsg;
                         U08 *dataPtr = data+1; // skip over sync byte
 
                         messagesInBuffer = TRUE;
-                        // convert received message data to a message and add to message queue
+                        // blank the new message record
                         blankMessageInWrapper( &rcvMsg );
+                        // copy message header portion of message data to the new message
                         memcpy( &(rcvMsg.msg.hdr), dataPtr, sizeof(MESSAGE_HEADER_T) );
                         dataPtr += sizeof(MESSAGE_HEADER_T);
+                        // copy message cargo portion of message data to the new message
                         memcpy( &(rcvMsg.msg.cargo), dataPtr, rcvMsg.msg.hdr.cargoLen );
                         dataPtr += rcvMsg.msg.hdr.cargoLen;
+                        // copy CRC portion of message data to the new message
                         rcvMsg.crc = *dataPtr;
+                        // add new message to queue for later processing
                         addToMsgQueue( MSG_Q_IN_CAN, &rcvMsg );
                     } // message is at least as large as minimum size
                 } // looks like there is a complete message in the comm buffer