From: sjw <simon.j.wright@mac.com>
Subject: Re: Hard and soft real time with Ada
Date: Mon, 17 May 2010 03:29:02 -0700 (PDT)
Date: 2010-05-17T03:29:02-07:00 [thread overview]
Message-ID: <71f32d79-f0fa-4fc9-bd9f-a1583e8684af@m21g2000vbr.googlegroups.com> (raw)
In-Reply-To: 4o3r0ouc23gx$.1dxknpkniq39u$.dlg@40tude.net
On May 17, 9:30 am, "Dmitry A. Kazakov" <mail...@dmitry-kazakov.de>
wrote:
> Hmm, I doubt USB can be considered real-time. But I see no obvious reason
> why a computer vision application could not tolerate some jitter (say
> 100µs). I guess you just do not need "very hard" real-time.
Clearly you wouldn't want to plug just any random USB device into a
system which expected known, bounded response times. Not that anyone
is going to be plugging any random USB device into a drone, especially
in flight ...
But is there anything about USB which makes the latencies etc for a
particular set of devices unbounded? If not, why shouldn't USB be used
in an appropriate application?
next prev parent reply other threads:[~2010-05-17 10:29 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-17 4:19 Hard and soft real time with Ada zeta_no
2010-05-17 8:30 ` Dmitry A. Kazakov
2010-05-17 10:29 ` sjw [this message]
2010-05-17 13:06 ` Dmitry A. Kazakov
2010-05-17 13:19 ` zeta_no
2010-05-17 22:01 ` Bruno Le Hyaric
2010-05-17 10:40 ` Colin Paul Gloster
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