Road vehicles. Unified diagnostic services (UDS) - UDS on Clock eXtension Peripheral Interface (UDSonCXPI)

Road vehicles. Unified diagnostic services (UDS) - UDS on Clock eXtension Peripheral Interface (UDSonCXPI)

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1   Scope

This document specifies the implementation of a common set of unified diagnostic services (UDS) on clock extension peripheral interface networks in road vehicles. The UDSonCXPI diagnostics defines methods to implement diagnostic data transfer between a client and the CXPI slave nodes via the CXPI master node.
This document specifies support of three different diagnostic classes for CXPI slave nodes.
This document references ISO 14229‑1 and ISO 14229‑2 and specifies implementation requirements of the UDSonCXPI communication protocol for mainly HMI (Human Machine Interface), but not limited to, electric/electronic systems of road vehicles. UDSonCXPI defines how to implement the diagnostic data transfer between a client and CXPI slave nodes via CXPI master node.

NOTE UDSonCXPI does not specify any requirement for the in-vehicle CXPI bus architecture.

This document refers to information contained in ISO 14229‑1, ISO 14229‑2 and ISO 20794 (all parts).
This document does not include any redundant information of the above-mentioned documents.
It focuses on
  • — additional requirements specific to the implementation of UDSonCXPI network, and
  • — specific restrictions in the implementation of UDSonCXPI network.