What feature would you like an RTOS to...

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Fianawarrior
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Posted by Fianawarrior: Tue. May 5, 2020 - 01:34 AM
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What feature would you like an RTOS to have?  for example read/write semaphores!

 

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Tools, Compilers, Assemblers, Linkers and General Programming (ARM-related)
Last Edited: Tue. May 5, 2020 - 12:04 PM
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jgmdesign
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Posted by jgmdesign: Tue. May 5, 2020 - 01:42 AM
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What the heck.....  has the RTOS damn burst and the threads are a flooding on teh subject.

 

This thread here:

https://www.avrfreaks.net/forum/...

 

Pretty much came to the proper conclusion that RTOS on a microcontroller is pretty useless for about 99.99999% of teh applications out there.

 

Maybe the OP can expand on their question as to what platform they are referring to where this RTOS will run?  If its on a micro then this thread is just going to become another facsimile of the one I pointed to.

 

Jim

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Kartman
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Posted by Kartman: Tue. May 5, 2020 - 01:45 AM
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How about one that does not ever disable interrupts?

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Fianawarrior
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Posted by Fianawarrior: Tue. May 5, 2020 - 02:05 AM
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Kartman wrote:
How about one that does not ever disable interrupts?

 

Done that.

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Fianawarrior
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Posted by Fianawarrior: Tue. May 5, 2020 - 02:06 AM
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jgmdesign wrote:

What the heck.....  has the RTOS damn burst and the threads are a flooding on teh subject.

 

This thread here:

https://www.avrfreaks.net/forum/...

 

Pretty much came to the proper conclusion that RTOS on a microcontroller is pretty useless for about 99.99999% of teh applications out there.

 

Maybe the OP can expand on their question as to what platform they are referring to where this RTOS will run?  If its on a micro then this thread is just going to become another facsimile of the one I pointed to.

 

Jim

 

Its running on a beast! ARM Cortex-A5 600MHz 512MBytes of DDR

 

 

 

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awneil
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Posted by awneil: Tue. May 5, 2020 - 07:53 AM
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Fianawarrior wrote:
Its running on a beast! ARM Cortex-A5

So why on earth are you posting it here?!?!

 

angry

 

Clearly, the features required have to be relevant to the intended target - so, as Jim said, "NONE" is going to be the answer for the vast majority of AVR applications.

 

Probably also for the majority of Cortex-M0/M3/M4

 

And even when they do get into RTOS territory, the requirements will be very different from an A5 "beast"

 

 

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Last Edited: Tue. May 5, 2020 - 08:00 AM
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awneil
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Posted by awneil: Tue. May 5, 2020 - 08:49 AM
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jgmdesign wrote:
What the heck.....  has the RTOS damn burst and the threads are a flooding on teh subject

 

And another just now:   https://www.avrfreaks.net/forum/freertos-error-atmel-studio-7

Top Tips:

  1. How to properly post source code - see: https://www.avrfreaks.net/comment... - also how to properly include images/pictures
  2. "Garbage" characters on a serial terminal are (almost?) invariably due to wrong baud rate - see: https://learn.sparkfun.com/tutorials/serial-communication
  3. Wrong baud rate is usually due to not running at the speed you thought; check by blinking a LED to see if you get the speed you expected
  4. Difference between a crystal, and a crystal oscillator: https://www.avrfreaks.net/comment...
  5. When your question is resolved, mark the solution: https://www.avrfreaks.net/comment...
  6. Beginner's "Getting Started" tips: https://www.avrfreaks.net/comment...
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Fianawarrior
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Posted by Fianawarrior: Sat. May 9, 2020 - 09:45 PM
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Can I resurrect this thread?  I'm still interested in any API calls you would like to see in an RTOS.

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westfw
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Posted by westfw: Sun. May 10, 2020 - 12:42 AM
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I'd like to see some open source operating system frameworks (good enough to gain a following) that don't claim to be "real time."  Maybe a run-to-completion OS, and something preemptive but without the "real time" feature.

Just so that once can compare and contrast.  Maybe something with EDISMS ala Tops20 (your task provides a pointer to a function that indicates runability.  Very powerful and general.  Very dangerous, abuseable, and easy to shoot yourself in the foot.)

(although I guess I'm not too clear on what "preemptive but not real-time" would mean.)

 

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