Index: HDDefs.h
===================================================================
diff -u -rbca3191e78d851370166fe00be348e42ff83a9b9 -r0b1e7ab83ee790a766978a013da5e21ee6732890
--- HDDefs.h	(.../HDDefs.h)	(revision bca3191e78d851370166fe00be348e42ff83a9b9)
+++ HDDefs.h	(.../HDDefs.h)	(revision 0b1e7ab83ee790a766978a013da5e21ee6732890)
@@ -7,8 +7,8 @@
 *
 * @file    HDDefs.h
 *
-* @author  (last)      Dara Navaei
-* @date    (last)      24-Aug-2022
+* @author  (last)      Dong Nguyen
+* @date    (last)      08-Sep-2022
 *
 * @author  (original)  Sean Nash
 * @date    (original)  29-May-2020
@@ -731,9 +731,16 @@
     HD_EVENT_STARTUP = 0,                                               ///< HD startup event
     HD_EVENT_OP_MODE_CHANGE,                                            ///< HD Op mode change event
     HD_EVENT_SUB_MODE_CHANGE,                                           ///< HD Op sub-mode change event
-    HD_EVENT_DRY_SELF_TEST_CARTRIDGE_RESULT,
-    HD_EVENT_DRY_SELF_TEST_PRESSURE_RESULT,
-    HD_EVENT_WET_SELF_TEST_DISPLACEMENT_RESULT,
+    HD_EVENT_DRY_SELF_TEST_CARTRIDGE_RESULT,                            ///< HD dry self test cartridge result
+    HD_EVENT_DRY_SELF_TEST_PRESSURE_RESULT,                             ///< HD dry self test pressure result
+    HD_EVENT_WET_SELF_TEST_DISPLACEMENT_RESULT,                         ///< HD wet self test displacement result
+    HD_EVENT_CPU_RAM_ERROR_STATUS,                                      ///< HD CPU RAM error status
+    HD_EVENT_CAL_RECORD_UPDATE,                                         ///< HD new calibration record updated
+    HD_EVENT_SYSTEM_RECORD_UPDATE,                                      ///< HD new system record has been updated
+    HD_EVENT_SERVICE_UPDATE,                                            ///< HD new service record has been updated
+    HD_EVENT_USAGE_INFO_UPDATE,                                         ///< HD new usage information has been updated
+    HD_EVENT_SW_CONFIG_UPDATE,                                          ///< HD new software configuration has been updated
+    HD_EVENT_NO_EVENT,                                                  ///< HD no event has been updated
     NUM_OF_EVENT_IDS                                                    ///< Total number of HD events
 };
 typedef enum HD_Event_List HD_EVENT_ID_T;                               ///< Type for HD event list enumeration