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[ts-7000] Re: precompiled ts11 rtai modules?

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Subject: [ts-7000] Re: precompiled ts11 rtai modules?
From: "Dan" <>
Date: Thu, 18 Dec 2008 19:41:29 -0000
charlie,

you're right.  i don't *know* that i need RTAI, i've just been asked
to get it running and look into.

yes, i was definitely running the ts11-rt kernel.  uname told me so.

for some reason, both of the patches (adeos & the hal patch) don't
want to work and i get a lot of hunks failing.  i'd say there's a 98%
chance it's user error since i'm basically fumbling around 

i've already switched the board to the ts9-rt kernel for which the
rtai modules are available pre-compiled.  i can run the test suite
applications with this configuration but get suspicious looking
results.  i.e. a lot of numbers that are negative or not zero.  i
wonder if anyone else could post up their test suite output for this
configuration (ts7200) to compare?

a coworker of mine is currently working on compiling the mainline 2.6
kernel with the patches posted on the message board.  

--- In  "charliem_1216" <> wrote:
>
> --- In  "Dan" <jiggersplat@> wrote:
> >
> > okay... so i'm trying to compile RTAI on my own and i'm having some
> > issues.  i've downloaded and unpacked the kernel source for ts11-rt
> 
> Hi Dan --
> 
> I can't help with RTAI, but I wonder if you really need the hard RT
> guarantees of RTAI?  The ep93xx is quite well supported in the 2.6
> kernels, which means you could use high resolution timers (microsecond
> resolution) and also the low latency config options, all with a stock
> kernel.  That way you get most of the benefits of RT, but none of
> complications of RTAI / adeos.  You won't get the hard RT guarantees
> with a vanilla kernel, but guaranteed RT response doesn't necessarily
> mean fast response.
> 
> You might consider building & testing such a 2.6 kernel to see if it
> meets your needs.  I think that would be easier than RTAI, if for no
> other reason than the number of RTAI users on this board seems quite
> small.
> 
> > and successfully (i think) cross-compiled it using the
> > gcc-3.3.4-glibc-2.3.2 crosstool chain from the TS ftp site and the
> > default ts7200 config file in linux24/arch/arm/def-configs.  i did not
> > apply the adeos patch (assuming that because i downloaded the src for
> > the ts11-rt version it was not needed.
> > 
> > next i unpacked the rtai-magma-3.2 source tarball from the TS ftp site
> > and tried to compile it using the same toolchain.  i get message
> > stating "configure: error: HAL patch not applied enabled in
../linux24"
> > 
> > what am i doing wrong?
> 
> IIRC, there is a patch inside that tarball that needs to be applied.
> 
> > 
> > thanks,
> > dan
> > 
> > --- In  "Dan" <jiggersplat@> wrote:
> > >
> > > i can't seem to find rtai module binaries for ts11 (only ts9).  are
> > > they out there somewhere and i just can't find them?
> > > 
> > > i'm running the ts11-rt kernel and when i try and run anything from
> > > the test suite i get an error telling me the rtai modules are
compiled
> > > for ts9 and i'm running ts11.
> 
> I've only ever seen RTAI mentioned for TS-9 kernels, not TS-11.  How
> do you know you are running a RT version of TS-11?  Can you boot the
> appropriate TS-9 RT kernel that *will* load the modules, for testing?  
> 
> regards, ............ Charlie
> 
> > > 
> > > i'm a total linux noob and am trying to avoid compiling them myself,
> > > but if that is in fact what i need to do, anyone have a good how-to?
> > > 
> > > thanks,
> > > dan
> > >
> >
>



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