Index: firmware/App/Services/SystemCommDD.h
===================================================================
diff -u -r8b8fff67b95805272f37855346d600599aaec03d -r52ded7b22d4b413aa8182f1343e4fbb78e8c3b0a
--- firmware/App/Services/SystemCommDD.h	(.../SystemCommDD.h)	(revision 8b8fff67b95805272f37855346d600599aaec03d)
+++ firmware/App/Services/SystemCommDD.h	(.../SystemCommDD.h)	(revision 52ded7b22d4b413aa8182f1343e4fbb78e8c3b0a)
@@ -33,17 +33,8 @@
 
 // ********** public definitions **********
 
-/*
-#define MESSAGE_SYNC_BYTE                       0xA5                                                                ///< Denali message syncronization byte.
-
-#define CAN_MESSAGE_PAYLOAD_SIZE                8                                                                   ///< CAN frame payload size (in bytes).
-
-#define MSG_ID_ACK_MESSAGE_THAT_REQUIRES_ACK    0xFFFF                                                              ///< Denali message ID for acknowledging received messages (when required).
-#define MSG_ACK_BIT                             0x8000                                                              ///< ACK bit in sequence number that indicates an ACK is required.
 #define MAX_MSG_SEQ_NO                          0x7FFF                                                              ///< Maximum sequence number for Denali message (then wraps to 1).
 #define MIN_MSG_SEQ_NO                          0x0001                                                              ///< Minimum sequence number for Denali message.
-#define MAX_ACK_MSG_SIZE                        ( sizeof( MESSAGE_WRAPPER_T ) + 1 + CAN_MESSAGE_PAYLOAD_SIZE )      ///< Maximum size (in bytes) of Denali message including full (wrapped) message + sync + any CAN padding)
-*/
 
 #define NUM_OF_CAN_OUT_BUFFERS      5                                                                               ///< Number of CAN buffers for transmit
 #define NUM_OF_CAN_IN_BUFFERS       9                                                                               ///< Number of CAN buffers for receiving
@@ -58,7 +49,8 @@
 BOOL isOnlyCANNode( void );
 void setOnlyCANNode( BOOL only );
 void clearCANXmitBuffers( void );
-void checkForCommTimeouts( void );
+void checkForCommTimeouts( void );
+void checkTooManyBadMsgCRCs( void );
 
 BOOL testSetHDCommunicationStatus( U32 value );
 BOOL testResetHDCommuncationStatus( void );