--- In Matthieu Crapet <> wrote:
>
> 8000Hz, means interrupts each 1.25ms. Is 2.6 kernel stable with that ?
Yes; at least it survived taking data at 8000 Hz and a simultaneous native
kernel compile over NFS. The load from 'cat /dev/adc1 > /dev/null' is
literally too low to see via top.
regards, ........Charlie
>
>
> charliem_1216 wrote:
> >
> >
> > --- In <ts-7000%40yahoogroups.com>, Jim
> > Jackson <jj@> wrote:
> > >
> > >
> > >
> > >
> > > On Tue, 26 May 2009, j.chitte wrote:
> > >
> > > >
> > > > All this is rather acedemic on TS7250 as supplied since the since the
> > > > 100Hz system clock means the fastest you can get from the driver
> > is 10ms
> > > > (yes you lose three orders of magnitude on what the 197 is capable of
> > > > doing).
> > > >
> > > > If you want faster sampling a fair bit of work will be required.
> > >
> > > .. which has already been done in form of the adc kernel driver by
> > Phillip
> > > McCarley. I think it's in the files area of the group.
> > > It can do sampling at upto aprox 8000Hz.
> > >
> >
> > Yep, that is about the max rate I got. I ported Phil's driver to build
> > under 2.6.19 or so, but haven't looked at it for a while.
> >
> > regards, ....... Charlie
> >
> >
>
------------------------------------
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/ts-7000/
<*> Your email settings:
Individual Email | Traditional
<*> To change settings online go to:
http://groups.yahoo.com/group/ts-7000/join
(Yahoo! ID required)
<*> To change settings via email:
<*> To unsubscribe from this group, send an email to:
<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
|