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All vehicle manufacturer specific diagnostic features are implemented and encapsulated in CANdesc. This gives the ECU application a clear signal interface. Reutilization of the ECU application is thereby supported.
CANdesc covers
- support of the total manufacturer-specific diagnostic protocol with all functional and timing constraints
- full implementation of communication related diagnostic services (e.g. $28 CommunicationControl)
- implementation of “data unit” handling ($2A, $2C) according to the OEM specification
- filtering of diagnostic requests according to service, session, service instance, format, session of service instance and security
- correct responses to diagnostic requests
- state management (depending on the CANdela database e.g. session and security handling)
- generation of a diagnostic data buffer and preservation of data consistency between application and diagnostic request (functional, physical and multiple simultaneous)
