# Open Source RTOS

**URL:** <https://community.sparkfun.com/t/open-source-rtos/8758>\
**Category:** MicroMod\
**Tags:** arm-lpc\
**Created:** [October 15, 2008, 3:25pm UTC](https://community.sparkfun.com/t/open-source-rtos/8758 "2008-10-15T15:25:00Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![weinerschizel](https://avatars.discourse-cdn.com/v4/letter/w/7c8e57/32.png) [@weinerschizel](https://community.sparkfun.com/u/weinerschizel)\
**Post date:** [October 15, 2008, 3:25pm UTC](https://community.sparkfun.com/t/open-source-rtos/8758/1 "2008-10-15T15:25:00Z")

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I’m looking for a Open Source RT OS that will work on an ARM.

In school we used Micro C OS on an ARM7. I’m looking for something similar but I don’t know of any open source versions.

At my last job they used a version of RT Linux running on an ARM but I wasn’t involved with that development so I don’t know much about it.

Anybody able to help out?

Thanks!

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**Author:** ![lou](https://avatars.discourse-cdn.com/v4/letter/l/ea666f/32.png) [@lou](https://community.sparkfun.com/u/lou)\
**Post date:** [October 15, 2008, 4:22pm UTC](https://community.sparkfun.com/t/open-source-rtos/8758/2 "2008-10-15T16:22:46Z")

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[[FreeRTOS](http://www.freertos.org/)]([http://www.freertos.org/](http://www.freertos.org/))

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**Author:** ![edmoore](https://avatars.discourse-cdn.com/v4/letter/e/e274bd/32.png) [@edmoore](https://community.sparkfun.com/u/edmoore)\
**Post date:** [October 15, 2008, 11:24pm UTC](https://community.sparkfun.com/t/open-source-rtos/8758/3 "2008-10-15T23:24:56Z")

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TNKernel.

We chose it over freertos for completely subjecting reasons. YMMV. Check them both out.

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**Author:** ![gdisirio](https://avatars.discourse-cdn.com/v4/letter/g/c4cdca/32.png) [@gdisirio](https://community.sparkfun.com/u/gdisirio)\
**Post date:** [October 18, 2008, 6:38am UTC](https://community.sparkfun.com/t/open-source-rtos/8758/4 "2008-10-18T06:38:35Z")

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See my signature 🙂

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**Author:** ![embedded-os](https://avatars.discourse-cdn.com/v4/letter/e/b487fb/32.png) [@embedded-os](https://community.sparkfun.com/u/embedded-os)\
**Post date:** [October 19, 2008, 10:15pm UTC](https://community.sparkfun.com/t/open-source-rtos/8758/5 "2008-10-19T22:15:19Z")

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If you look for a free RTOS similar to µC/OS…

see pC/OS:

[http://www.embedded-os.de/index.html?pcos.htm](http://www.embedded-os.de/index.html?pcos.htm)

it bases on µC/OS 1.00, but with a lot of additional features and corrections.