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Re: [rtl] RT domain, non RT domain
Hey Erwin,
the linux kernel is just the lowwest priority task under RT-linux.
Everything you
run on normal Linux is not realtime. The RT-module could just pass the
information
via the RT-FIFO's to "normal" Linux and than yer display application can
read them
and do whith them wat it wants.
take a look at the docs on www.rtlinux.org and to the examples even
though not all
very uptodate they give a iddea how it all works.
- Erwin
erwin.verhulst@philips.com wrote:
>
> Hi,
>
> I'm new with RT-Linux, infact I haven't programmed anything yet with Linux or RT-Linux at all. so forgive me if the question is a bit straight forward.
>
> I'm trying to develop a program for a Cruise Control system. I want to communicate with the CC hardware trough an I/O card or Parallel port.
>
> I'm struggling with the fact that there are two kernels. One is Linux (non RT) and the other RTLinux (RT). I figured that the control of the I/O card or parallel port must be a loadable module (driver) in the RTLinux kernel and that the Display must run
> under X. But, how am I to program this. Can I program this all in one pees, or do I have to separate the Display part and the driver part?
>
> My biggest question is actually, how do I know whether a program is running under RTLinux or Linux.
>
> Can anybody give me a clear picture of how this two kernel stuff actually works.
>
> Many Thanks,
>
> E Verhulst , NL
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--
Q - S O F T - E N G I N E E R I N G
Erwin Rol (Software Engineer) phone: +49-89-68050051
Erwin.Rol@Q-Soft-Engineering.com fax : +49-89-68050052
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