RTEMS on Aurix/TriCore

[Sebastian Huber]

Hello Felix,


On 28/07/2020 10:50, Knopp, Felix Ulrich wrote:
>
> Hello,
>
> The company I work for is currently using AURIX/TriCore 
> micro-controllers running PXROS as real time operating system.
> I am now investigating if we could use a free alternative like RTEMS 
> instead. However, from what i've seen so far (I'm very new to RTEMS) 
> the TriCore architecture is not supported by RTEMS.
>
> Would it be possible to run rtems on an aurix micro-controller?
>

yes, there is currently no TriCore support for RTEMS. One of the reasons 
is that there is no free and maintained compiler available for this 
platform (at least as far as I know).


> What would have to be done to support a new processor architecture?
>

Firstly, you need a compiler. Ideally one which can build Newlib. For 
the RTEMS core, you don't need a full C library, but if you can't use 
Newlib, then things get more complicated. Then you have to do a full CPU 
port for the TriCore. This is feasible, but not done in two weeks of work.