Simulation using Interruptions

摘要

There are known two methods of organization of control programs in discrete control systems - polling of devices or subsystems and interruption service. The first one is simple to program, but is used in relatively not complicated systems, because requires many resources of a processor for continuous polling of devices. The second one requires of a processor attention only if a service is needed. This necessity calls an interruption of a running program to make a service. This method is more efficient in sense of usage of resources, because continuous checking of peripherals devices is not required.