The design of a real-time system for simulators and trainers

The author describes the design of a host/target multiprocessor system with distributed memory, which addresses a class of real-time problems that operate in a synchronized environment with rapid response to external events, such as real-time simulators and trainers. The unique needs of trainers and simulators are addressed through the implementation of a mirror memory and a distributed database supported by broadcasting writes and interrupts in a tightly-coupled host/target architecture. A special software development tool has been developed, referred to as the Application Worksheet, which provides real-time deadline scheduling and inter-processor triggering required in most simulator and trainer applications.<>