Open source OS

Given that you are a beginner, it would be useful to read about an RTOS and be able to use the code. I would recommend downloading the Micrium books about uCOS-III.

http://micrium.com/

You may need to register to download the PDFs, but its definitely worth it.

The NIOS II examples already have uCOS-II examples.

If you want to understand how to port the OS, then read through this document (its for an ARM microcontroller);

https://www.ovro.caltech.edu/~dwh/ucos/project_ar1803.pdf

https://www.ovro.caltech.edu/~dwh/ucos/gcc_and_ucosii.zip

uCOS-II and uCOS-III are not open-source, but their source code is available to read. You can use the OS for university and non-commercial purposes.

Once you understand uCOS-II/III you can take a look at other OSes, eg., FreeRTOS.

http://www.freertos.org/

Cheers,

Dave

Dear Dave,

many thanks. I read some documents about RTOS previously. what is your opinion about read ecos documents to start RTOS learning?

I am an student and i am working on my final university project. How can i get license of uC/OS-III or uC/OS-II ?

Best Regards.

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I read some documents about RTOS previously. what is your opinion about read ecos documents to start RTOS learning?

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I never found eCOS documentation particularly good. I have this book

http://www.amazon.com/embedded-software-development-anthony-massa/dp/0130354732

which you can download in PDF from

http://ecos.sourceware.org/docs.html

I read it, but was never inspired to use eCOS ... whereas I have had uCOS-II running in one system continuously since 2000.

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I am an student and i am working on my final university project. How can i get license of uC/OS-III or uC/OS-II ?

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You don't need it. You already have the source to uCOS-II in your Quartus/NIOS installation. You can download the source to uCOS-III from the Micrium site, along with PDF copies of all the books they sell.

Cheers,

Dave