From: Wolfgang Grandegger <wg@domain.hid>
To: Andrey Nechypurenko <andreynech@domain.hid>
Cc: Xenomai help <xenomai@xenomai.org>
Subject: Re: [Xenomai-help] Jitter while generating PWMs with GPIO from RTDM driver
Date: Mon, 23 Apr 2012 15:14:45 +0200 [thread overview]
Message-ID: <4F9555C5.3070300@domain.hid> (raw)
In-Reply-To: <CAOiXNkD+-yANz15W_cnD9QLjyGH7LUT-Pf8LEJHqx4Kh24pL+g@domain.hid>
On 04/23/2012 01:56 PM, Andrey Nechypurenko wrote:
> Hi Folks,
>
> Following my tests with PWM generation using GPIO in user space [1],
> I've made the RTDM module [2] to further reduce the jitter. As a
> result, jitter was improved, but still under heavy system load the
> servo motor I am trying to control starts shaking. Now, I fill stuck
> and hope to get some help here.
What jitters in micro-seconds are you speaking about? What are you
requirements? I have not found that information yet in this thread.
Wolfgang.
next prev parent reply other threads:[~2012-04-23 13:14 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-23 11:56 [Xenomai-help] Jitter while generating PWMs with GPIO from RTDM driver Andrey Nechypurenko
2012-04-23 12:27 ` Gilles Chanteperdrix
2012-04-23 12:35 ` Andrey Nechypurenko
2012-04-23 12:51 ` Gilles Chanteperdrix
2012-04-23 12:57 ` Andrey Nechypurenko
2012-04-23 13:15 ` Philippe Gerum
2013-07-22 16:52 ` [Xenomai] " Christoph
2013-07-22 20:51 ` Andrey Nechypurenko
2012-04-23 12:59 ` [Xenomai-help] " Gilles Chanteperdrix
2012-04-23 13:05 ` Andrey Nechypurenko
2012-04-23 12:44 ` Gilles Chanteperdrix
2012-04-23 13:14 ` Wolfgang Grandegger [this message]
2012-04-23 13:25 ` Andrey Nechypurenko
2012-04-23 13:37 ` Wolfgang Grandegger
[not found] <CAOiXNkD+-yANz15W_cnD9QLjyGH7LUT-Pf8LEJHqx4Kh24pL+g@mail.gmail.com>
[not found] ` <4F954ABE.20508@xenomai.org>
[not found] ` <CAOiXNkDKRpQKjtvC-H1YsJtHkNWYcWTUEKPqfYv0HQ_=SRHGCw@mail.gmail.com>
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4F9555C5.3070300@domain.hid \
--to=wg@domain.hid \
--cc=andreynech@domain.hid \
--cc=xenomai@xenomai.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.