ts-7000
[Top] [All Lists]

[ts-7000] Re: Changing HZ on 7800

To:
Subject: [ts-7000] Re: Changing HZ on 7800
From: "fulatoro" <>
Date: Sun, 06 Jan 2008 20:00:53 -0000
I am using a TS-7800.

Moussa.
--- In  Ilya Goldberg <> wrote:
>
> 
> On Jan 5, 2008, at 6:42 PM, fulatoro wrote:
> 
> > Well, you might have a point, however, I am reading IO pins and I
> > would like to have better granularity than the 10ms System clock, I
> > realize that I can probably improve things by writing a device driver
> > and doing the work in the kernel, but the complexity is not justified.
> >  My system is doing basic IO work and provides a web interface for
> > setup and configuration and that is about it.  It should not be too
> > taxing.
> 
> Everybody says that it'll bring the CPU to its knees, but I always  
> thought that sounded a little fishy.  There is time to execute  
> 200,000 instructions at 1kHz, which seems like plenty.
> 
> If you do reset the system clock to a kHz or so, I'd be curious to  
> hear how things go for you.
> Oh, and what board are you using?
> Thanks,
> -Ilya
> 
> 
> 
> >
> > Maybe someone else can share their experience on this.
> >
> > Moussa
> >
> > --- In  Fotis Loukos <fotisl@> wrote:
> >>
> >> fulatoro wrote:
> >>> Hello, I was attempting to change the HZ setting and recompile the
> >>> kernel but, I was unable to find the option when doing a make  
> >>> xconfig.
> >>>  I did attempt to modify the .config file manually to set the HZ to
> >>> 1000, but it seems to default back to 100.  Any suggestions on  
> >>> how to
> >>> do this right?
> >>>
> >>> Moussa
> >>>
> >>>
> >> Hello,
> >> you can change the HZ value at linux/include/asm-arm/param.h. But are
> >> you sure you want to do this? 1000 interrupts per second just for the
> >> timer may be too much. At least for the user applications...
> >>
> >> Fotis
> >>
> >
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
>




 
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/
 

<Prev in Thread] Current Thread [Next in Thread>
Admin

Disclaimer: Neither Andrew Taylor nor the University of NSW School of Computer and Engineering take any responsibility for the contents of this archive. It is purely a compilation of material sent by many people to the birding-aus mailing list. It has not been checked for accuracy nor its content verified in any way. If you wish to get material removed from the archive or have other queries about the archive e-mail Andrew Taylor at this address: andrewt@cse.unsw.EDU.AU