rtos in at89c51 and pic16f877a

[dinesh401]

how to rtos programming in at89c51 and pic16f877a ?

Is it possible to do rtos programming ?
if possible tell what are the software's regarding it.

i know about rtx tiny and rtx full. But using rtx tiny the memory is sufficeint. rtx full is a paid version.
Is there any other software which is free, can can develop rtos programming.

if possible send me the links regarding those about rtos.


thankyou.....

 

[sky_123]

You could try uC/OS-II - not sure what the licensing terms on that.
However, when you've got around 128-256 bytes of RAM or so, and not much FLASH/ROM either, you have to consider, do you really need to use an RTOS? You may just want a very simple kernel, or you may be happy with "interrupt driven events and a main loop".
Anyway, the popular OS is uC/OS-II because it is explained very well in the author's book (J. Labrosse).

 

[dinesh401]

actually i want to learn rtos programming and want to do small small project based on rtos. In that type of learning which is the best ?...I will see about the uC/OS-II. Other than this if u find anyother rtos regarding. Please post me.

Thank you....

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can you tell me. When to use rtos programming...when not to use the rtos...
I want usage of it. I dont know anything about it.
If possible send me any links regarding rtos.

 

[sky_123]

Well, better to learn by reading up first, than trying an example RTOS first. It is still a 'wild west' as far as the smallest OSs are
concerned, they don't follow any standards partially due to tight memory limitations, so you shouldn't assume that uC/OS or any other
small OS is doing things in the best way since there are many types of features possible.
See here. There are useful resources there for RTOS including a downloadable book.
Also see here if you are close to a library. After all that, you'll have an excellent
understanding.