DANSK DS/ISO 17458-5 PDF

The FlexRay communications system is an automotive focused high speed network. Some of the basic characteristics of the FlexRay protocol are synchronous and asynchronous frame transfer, guaranteed frame latency and jitter during synchronous transfer, prioritization of frames during asynchronous transfer, single or multi-master clock synchronization, time synchronization across multiple networks, error detection and signaling, and scalable fault tolerance. The FlexRay communications system is defined for advanced automotive control applications. It serves as a communication infrastructure for future generation high-speed control applications in vehicles by providing: - A message exchange service that provides deterministic cycle based message transport; - Synchronization service that provides a common time base to all nodes; - Start-up service that provides an autonomous start-up procedure; - Error management service that provides error handling and error signalling; - Wakeup service that addresses the power management needs; This part of ISO 17458 specifies the conformance test for the electrical physical layer of the FlexRay communications system. It is part of this document to define a test that considers ISO 9646 and ISO 17458-4. The purpose of this document is to provide a standardized way to verify whether FlexRay Bus Driver and Active Star products are compliant to ISO 17458-4. The primary motivation is to ensure a level of interoperability of FlexRay Bus Drivers and Active Stars from different sources in a system environment. This document shall provide all necessary technical information to ensure that test results will be identical even on different test systems, provided that the particular test suite and the test system are compliant to the content of this document. IMPORTANT ¡X According to ISO 17458-4, the FlexRay communications system was specified focusing on a data rate of 10 Mbit/s. Therefore this conformance test specification regards the use of systems with a data rate of 10 Mbit/s only whereas the physical layer shall also work properly in systems with data rates in the range from 2,5 Mbit/s to 10 Mbit/s according to ISO 17458-4.