CMSIS-RTOS

Hi everyone,

I want to dive into RTOS for microcontrollers. I decided to use FreeRTOS then I came across CMSIS-RTOS. If I get it correct it is a wrapper for RTOSs so you can change underlying RTOS without chancing your code. I wonder are there any real benefits of using CMSIS-RTOS rather than using native RTOS like FreeRTOS interface?

Thanks.

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Jan Cumps over 3 years ago in reply to msimon +4

Self promotion :) : balearicdynamics and I made a project last year , with FreeRTOS, that uses most of the principles there: scheduler and task semaphore/mutex message queue events and inter…
phoenixcomm over 3 years ago +3

FreeRTOS is very capable. why do you want to wrap it? In larger RealTime projects we do two things in this order 1. launch the OS like Debian. 2 now launch the task scheduler which is interrupt-driven…
Jan Cumps over 3 years ago in reply to BigG +3

MBED OS and CMSIS-RTOS are changing so fast that I can't follow anymore what they are, what they wrap and what they are based upon I know TI-RTOS and FreeRTOS fairly well. Although they are completely…

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0 phoenixcomm over 3 years ago

FreeRTOS is very capable. why do you want to wrap it? In larger RealTime projects we do two things in this order 1. launch the OS like Debian. 2 now launch the task scheduler which is interrupt-driven (see https://www.oreilly.com/library/view/understanding-the-linux/0596005652/ch04s06.html for a good article. )
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0 msimon over 3 years ago in reply to phoenixcomm

That is the question I wonder. For me, I can't find much answer to use CMSIS-RTOS. I got that it may be useful if you change RTOS but that won't be so frequent. As, I am new on the subject I want to learn are there any good reasons to use it.

STM32Cube IDE uses CMSIS-RTOS for FreeRTOS and I want to see the rationalisation behind it. Thanks for the link it looks interesting.
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0 msimon over 3 years ago in reply to phoenixcomm

That is the question I wonder. For me, I can't find much answer to use CMSIS-RTOS. I got that it may be useful if you change RTOS but that won't be so frequent. As, I am new on the subject I want to learn are there any good reasons to use it.

STM32Cube IDE uses CMSIS-RTOS for FreeRTOS and I want to see the rationalisation behind it. Thanks for the link it looks interesting.
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