Re: Microcontroller Vs Microprocessor for RTOS

From: Neil Kurzman (
Date: 02/01/05

Date: Tue, 01 Feb 2005 04:07:24 GMT wrote:

> Dear all,
> I am just curious to know why almost all commercial popular RTOS like
> RTLINUX,Vxworks work mainly on Micro processor instead of
> Microcontrollers?
> AFAIK,I have seen Vxworks work on Boards like Intel x86,powerpc,ARM and
> all mentioned processor boards instead of real microcontrollers like
> 8051,68HC series from motorola and so.
> Why do RTOS prefer microprocessors as compared to microcontrollers?
> Though I know few RTOS like RTX-51 which runs exclusively only on 8051
> microcontrollers,still such things are not so common in embedded world.
> I would like to hear some real facts behind this decision instead of
> starting a religious war of using microcontrollers or microprocessors
> with RTOS...
> Regards,
> s.subbarayan