Index: App/Services/SystemComm.h
===================================================================
diff -u -r833095dbbe2b21a989b05f48bd7ddc390ad964cb -r83de6e3e3de4767fd50713e18b0bd75a06479fc7
--- App/Services/SystemComm.h	(.../SystemComm.h)	(revision 833095dbbe2b21a989b05f48bd7ddc390ad964cb)
+++ App/Services/SystemComm.h	(.../SystemComm.h)	(revision 83de6e3e3de4767fd50713e18b0bd75a06479fc7)
@@ -22,6 +22,10 @@
 
 // ********** public definitions **********
 
+#define MESSAGE_SYNC_BYTE           0xA5
+
+#define CAN_MESSAGE_CARGO_SIZE      8
+
 typedef COMM_BUFFER_T   CAN_MESSAGE_BOX_T;       // the first 10 comm buffers align with the 10 active CAN message boxes
 
 // ********** public function prototypes **********
@@ -32,6 +36,4 @@
 void handleCANPacketReceivedInt( CAN_MESSAGE_BOX_T srcCANBox );
 void handleCANXmitCompleteInt( void );
 
-BOOL sendOffButtonMsgToUI( void );
-
 #endif