Re: rtos features
From: Not Really Me (scott_at_exoXYZtech.com)
Date: 06/22/04
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Date: Tue, 22 Jun 2004 08:56:48 -0600
Sagar wrote:
> hello,
>
> i am evaluating various rtos for on of our products based on arm7. i
> have been looking at Nucleus, embOS, Rtxc, Threadx and MicroC os-ii.
> Of the lot Threadx and embOS seem to be good. Although i believe that
> the others are just as good. It seems hard to zero in one choice. I
> have been searching for reviews in the newsgroups. I have found some
> scattered info for nucleus and threadx (threadx apparently seems to be
> better).
>
> I am primarily looking at these features:
> Scheduling, events, queues, low interrupt latencies, small mem
> footprint, fast context switching, ....
>
> I would appreciate if somebody could post their views/experiences on
> these rtos'.
>
>
> Thank you
> Sagar
I am very partial to MicroC/OS-II. It offers all the features you list
including fast context switching. It has been ported to all kinds of chips
based on ARM7 and ARM9 cores and the ports are available freely from
Micrium's web site. Jean Labrosse published a book on the OS (available on
their web site or from Amazon) and the book includes a CD with all of the
source code. You can have it all for about US$70. A production license is
under $3000.
MicroC/OS-II has also been tested extensively for use in safety critical
systems.
-- Scott ExoTech R&D, Inc.
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