Network-Code Machine: Programmable Real-Time Communication Schedules

Distributed hard real-time systems require guaranteed communication. One common approach is to restrict network access by enforcing a time-division multiple access (TDMA) schedule.The typical data representation of offlinegenerated TDMA schedules is table-like structures. This representation, however, does not permit applications with dynamic communication demands, because the table-like structure prevents on-the-fly changes during execution. A common approach for applications with dynamic communication behavior is dynamic TDMA schedules. However, such schedules are hard to verify, because they are usually implemented in a programming language, which does not support verification. Network code is a behavioral model for specifying realtime communication schedules. It allows modeling arbitrary time-triggered communication schedules with on-thefly choices, and it is also apt for formal verification. In this work, we present network code and show how we can use a model checker to ver...

• Type: Conference
• Year: 2006
• Where: RTAS
• Authors: Sebastian Fischmeister, Oleg Sokolsky, Insup Lee
• Keywords: Communication Schedules, Dynamic Communication, Real-Time Technology, RTAS 2006, TDMA Schedules