A time-predictable TTEthenet node

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Distributed real-time systems need time-predictable computation and communication to facilitate static analysis of timing requirements and deadlines. This paper presents the implementation of a deterministic network protocol, TTEthernet, on the time-predictable Patmos processor. The implementation uses the existing Ethernet controller on the processor and we tested it with a TTEthernet system provided by TTTech Inc. Further testing showed that the controller could send time-triggered messages with bounded latency and a small jitter of approximately 4.5 us. We also provide worst-case execution time analysis of the network code, which demonstrates a time-predictable end-to-end solution. This work enables Patmos to communicate with other nodes in a deterministic way. Thus, extending the possible uses of Patmos.

Original languageEnglish
Title of host publicationProceedings of the 2019 IEEE 22nd International Symposium on Real-Time Distributed Computing,
Publication date1 May 2019
Article number8759316
ISBN (Electronic)9781728101507
Publication statusPublished - 1 May 2019
Event22nd IEEE International Symposium on Real-Time Distributed Computing, ISORC 2019 - Valencia, Spain
Duration: 7 May 20199 May 2019


Conference22nd IEEE International Symposium on Real-Time Distributed Computing, ISORC 2019
CitationsWeb of Science® Times Cited: No match on DOI

ID: 190311379