Project 7.18 Multitasking
Most complex real-time systems consist of a number of tasks running independently. This requires some form of scheduling and task control mechanisms. For example, consider an extremely simple real-time system that must flash an LED at required intervals and at the same time look for a key input from a keypad. One solution would be to scan the keypad in a loop at regular intervals while flashing the LED at the same time. Although this approach may work for simple systems, in most complex real-time systems, a real-time operating system (RTOS) or a multiprocessing approach are usually employed. Multiprocessing is beyond the scope of this project.
An RTOS is a program that manages system resources, scheduling the execution ...
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