Index: firmware/App/Services/SystemComm.h
===================================================================
diff -u -r01875def462c74a2ec96a13e9eeca87addad852d -r33bcd0fcd7a3bba5f85a7e35ac63aadbe4e91671
--- firmware/App/Services/SystemComm.h	(.../SystemComm.h)	(revision 01875def462c74a2ec96a13e9eeca87addad852d)
+++ firmware/App/Services/SystemComm.h	(.../SystemComm.h)	(revision 33bcd0fcd7a3bba5f85a7e35ac63aadbe4e91671)
@@ -8,7 +8,7 @@
 * @file    SystemComm.h
 *
 * @author  (last)      Sean Nash
-* @date    (last)      02-Dec-2021
+* @date    (last)      08-Feb-2022
 *
 * @author  (original)  Dara Navaei
 * @date    (original)  05-Nov-2019
@@ -32,17 +32,17 @@
 
 // ********** public definitions **********
 
-#define MESSAGE_SYNC_BYTE           0xA5                                                                ///< Denali message syncronization byte.
+#define MESSAGE_SYNC_BYTE                       0xA5                                                                ///< Denali message syncronization byte.
 
-#define CAN_MESSAGE_PAYLOAD_SIZE    8                                                                   ///< CAN frame payload size (in bytes).
+#define CAN_MESSAGE_PAYLOAD_SIZE                8                                                                   ///< CAN frame payload size (in bytes).
 
-#define MSG_ID_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 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)
 
-typedef COMM_BUFFER_T   CAN_MESSAGE_BOX_T;                                                              ///< the CAN comm buffers align with the active CAN message boxes
+typedef COMM_BUFFER_T   CAN_MESSAGE_BOX_T;                                                                          ///< the CAN comm buffers align with the active CAN message boxes
 
 // ********** public function prototypes **********