User`s guide

6 Program Architecture
6-10
This code shows how a model executes in a real-time multitasking system
(where the model is run at interrupt level).
rtOneStep()
{
Check for interrupt overflow
Enable "rtOneStep" interrupt
ModelOutputs(tid=0) -- Major time step.
LogTXY -- Log time, states and root outports.
ModelUpdate(tid=0) -- Major time step.
Integrate -- Integration in minor time step for
-- models with continuous states.
ModelDerivatives
Do 0 or more:
ModelOutputs(tid=0)
ModelDerivatives
EndDo (Number of iterations depends upon the solver.)
Integrate derivatives and update continuous states.
EndIntegrate
For i=1:NumTasks
If (hit in task i)
ModelOutputs(tid=i)
ModelUpdate(tid=i)
EndIf
EndFor
}
main()
{
Initialization (including installation of rtOneStep as an
interrupt service routine, ISR, for a real-time clock).
While(time < final time)
Background task.
EndWhile
Mask interrupts (Disable rtOneStep from executing.)
Complete any background tasks.
Shutdown
}