[Tfug] Just starting - need help
Bexley Hall
bexley401 at yahoo.com
Tue Oct 3 15:39:47 MST 2006
--- Joe Blais <joe.blais at pti-instruments.com> wrote:
> QNX -- :-)
> I worked with that way back when -- It was great ---
> I was trying to get that for this project --but
> bosses like cheap :-(
There's no free lunch -- as you may end up proving to
them in the next few months! :-/
> The devices we make need some degree of
> real-timedness. XP worked
> sufficiently fast, with a 1gig processor, so we
> figured we could live with Linux on a small card.
Don't fall into the trap of confusing "fast" with
"real-time". :-( Make *sure* you understand your
exposure, there (I sincerely doubt the linux kernel
was written -- or REwritten -- with deteministic,
bounded algorithms throughout, etc.). Many real-time
linux products work by providing a seaparate
mechanism *outside* the kernel that provides
real-time guarantees. And an interface to Linux
for the non-real-time GUI-type things.
> The problem with winders is the forced upgrades to
> bigger and faster processors means upgrading devices
> we build..... calling home...
Yup. And,depending on the industry in which you are
working, being unable to escrow sources could be a
deal-breaker.
> XP embedded is a fallback.
My condolences! :>
--don
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