From: Gary Thomas <gthomas@cambridge.redhat.com>
To: Michał Oleńczuk <olenczuk@rts.com.pl>
Cc: ecos-discuss@sourceware.cygnus.com
Subject: RE: [ECOS] clock resolution
Date: Mon, 23 Apr 2001 05:50:00 -0000 [thread overview]
Message-ID: <XFMail.20010423065009.gthomas@cambridge.redhat.com> (raw)
In-Reply-To: <014701c0cbfa$f80f7900$1e00a8c0@OLENCZUK>
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On 23-Apr-2001 Micha³ Oleñczuk wrote:
> Hi,
> I am beginner in eCos programming and I have some problems:
>
> I want to set real time clock resolution to 1000 ticks/sec (or higher). Is
> it available to set it from software using cyg_clock_set_resolution() ?
> Setting dividend and divisor in cyg_resolution_t structure gives no effect
> (cyg_clock_get_resolution() gives the same before-setting resolution value
> =100).
> I changed it in eCos ConfigTool, and after calling
> cyg_clock_get_resolution() I got my setted resolution resolution, but some
> function like cyg_thread_delay() or alarm functions work the same as with
> default resolution value.
How do you mean "worked the same"? cyg_thread_delay() takes a number of 'ticks'
as it's argument, so the only way to see if the value changes is by using some
outside observation (measure against a wall clock, for example).
>
> How to get 1000 or more ticks for a second ????
What platform are you using?
next prev parent reply other threads:[~2001-04-23 5:50 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-04-23 5:40 Micha&lstrok
2001-04-23 5:50 ` Gary Thomas [this message]
2001-04-23 11:10 ` Jonathan Larmour
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