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tmain
Active Contributor

Join Date: Oct 2007
Posts: 13

RTOS for embedded systems

01/01/2009 11:21 AM

What are the benefits of using real time operating systems ?

The significant part is the independent threads of execution that can yield the processor, briefly task scheduling. But what are the other considerations ? Now we are working on DSP's (specifically TI TMS320DM643x DSP family) and our project director ask a simple question when one of us suggested to go on RTOS systems that why should we do that ?

Task Scheduling and interrupt management are the indispensible parts of the real time operations.But what is the difference between the DSPs with well structured(time management) code and DSPs with RTOS(at the same time this family support the RTOS kernels)

Any Ideas ?
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Pathfinder Tags: rtos dsp
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marcot
Guru
Canada - Member - Specialized in power electronics

Join Date: Feb 2008
Location: Montreal, Canada.
Posts: 1372
Good Answers: 80
#1

Re: RTOS for embedded systems

01/02/2009 12:08 PM

My experience is that you can do (almost) the same with your program than what is done by the RTOS. You simply have to spend some time programming it, debugging it, and documenting it.

You must realise that some of the functionalities found in a RTOS have taken thousand of hours to develop. If you need them, your project should be completed faster using a RTOS. Otherwise, you might spend more time learning the RTOS and suffering the restriction that it will impose on your code structure than writing your own scheduler.

In general, one is advantaged to re-use the work previously done in an existing RTOS but choose wisely as there are two sides to the coin...

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tmain
Active Contributor

Join Date: Oct 2007
Posts: 13
#2

Re: RTOS for embedded systems

01/02/2009 10:06 PM

Please continue with this topic,sorry for duality :)
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