Simple Real Time MCU Simulator

This is a simple core library that can be used to implement real time simulator of multi MCU systems.

The library is not a full simulator of a system but a few communication objects that can be used to implement simulation of multi MCU systems with precise real time timings.

Features of the simulator

• The simulation time is executed by a virtual clock that is not bound to the clock of the executing PC.

• The simulation does not add any non-predictable behaviour. In case the other components of the system are non-random then the results are reporducibly the same in every execution. Simulation of random timings is possible by adding (pseudo) random latencies to the simulated system.

• MCUs of the system are executed in separate processes and they communicate through shared memory.

• Due to performance reasons cross-MCU events are sent using writing and polling of shared memory. This allows the fastest simulation but uses busy spin lock implementation.

• It is possible to simulate multiple MCUs not just 2.

The basic objects of the library

• localClock: simulation of MCU clocks (what is typically implemented by a quartz or internal oscillator)

• channel(Source): an information channel that can have causal effect between MCUs. Information is written into the channel on the information source side

• channelSink: receiver of the information channel.

All other features have to be implemented when the library is integrated into the simulated system.

License

The library is released under the MIT license. See file: LICENSE