I'm reading and trying to understand Autosar specification for DEM, and stumbled over at the point how the Dem_EventStstusType is defined. It only says the cases,
- DEM_EVENT_STATUS_PASSED
- DEM_EVENT_STATUS_FAILED
- DEM_EVENT_STATUS_PREPASSED
- DEM_EVENT_STATUS_PREFAILED
- DEM_EVENT_STATUS_FDC_THRESHOLD_REACHED
but there's no such a status which can represnet the "Gray zone" which is neither prepassed nor prefailed. For my case, the gray zone is defined to ensure clear pass or clear fail state and avoid ambiguous state by using a single border in failure threshold.So, the question is, for instance, the sensor voltage was once in a failed zone(=prefailed) then it changed over to the gray zone but not in pass zone, how can I represent this state? Shall it be still prefailed, or prepassed? or shall I define a new using reservied bit(0x05-0xFF)? even is this allowed to do?
I tried to find the solution by googling and GPT, but not successful.
