Choosing an RTOS - IAR Systems
Choosing an RTOS - IAR Systems
Choosing an RTOS - IAR Systems
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How to choose <strong>an</strong> <strong>RTOS</strong> – ESC 2011<br />
Common features of <strong>RTOS</strong>s<br />
Events/Flags<br />
• A semaphore is a simple flag that allows a piece of code to<br />
execute if a resource is available or a condition is true<br />
• In general, events/flags allow the developer to specify a<br />
series of conditions that c<strong>an</strong> halt the execution of a piece of<br />
code until all the conditions defined by the events/flags are<br />
true<br />
• These give a greater degree of flexibility to the developer,<br />
but exactly how these are implemented (<strong>an</strong>d how m<strong>an</strong>y c<strong>an</strong><br />
be specified) varies from <strong>RTOS</strong> to <strong>RTOS</strong>, so it is import<strong>an</strong>t<br />
to know a priori approximately how m<strong>an</strong>y blocks a task may<br />
need when you choose your <strong>RTOS</strong><br />
• Having a good kernel-aware debugger is key when trying to<br />
debug problems related to events/flags!
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