From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: silly ravenscar question
Date: Tue, 24 Feb 2015 11:29:21 +0100
Date: 2015-02-24T11:29:21+01:00 [thread overview]
Message-ID: <afc001q47yro$.ymst73zsybql$.dlg@40tude.net> (raw)
In-Reply-To: 8e30f54c-81c4-4861-897c-bb6c563c76e8@googlegroups.com
On Tue, 24 Feb 2015 01:07:31 -0800 (PST), jan.de.kruyf@gmail.com wrote:
> I am busy doing a very light ethernet fieldbus for a few Olimex stm34 boards and a pc.
You mean the boards will be sort of terminals. And the master will be?
Which cycles you are talking about, 1ms, 0.1ms, 0.01ms?
> and EtherCAT needs more involved hardware (although it is very fast)
EtherCAT does not need special hardware. If you mean Beckhoff's piggyback,
you don't have to use it. You can do all it does with a plain board and raw
Ethernet. Admittedly it would be a lot of work and EtherCAT slave protocol
(all upper levels) is a horrific mess.
> Is there any interest in the community? I am willing to put it under GPL.
If that would not hinder selling the terminals to the end customers without
exposing the sources...
All existing fieldbuses are extremely poor designed, in my view. But I
doubt it would be a work for one man.
--
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de
next prev parent reply other threads:[~2015-02-24 10:29 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-24 9:07 silly ravenscar question jan.de.kruyf
2015-02-24 10:29 ` Dmitry A. Kazakov [this message]
2015-02-24 11:11 ` jan.de.kruyf
2015-02-24 13:38 ` Dmitry A. Kazakov
2015-02-25 8:48 ` jan.de.kruyf
2015-02-25 10:46 ` Dmitry A. Kazakov
2015-02-25 17:35 ` jan.de.kruyf
2015-02-25 17:55 ` Dmitry A. Kazakov
2015-02-26 8:48 ` jan.de.kruyf
2015-02-26 9:47 ` Dmitry A. Kazakov
2015-02-26 12:07 ` jan.de.kruyf
2015-02-26 19:09 ` jan.de.kruyf
2015-02-27 8:58 ` Dmitry A. Kazakov
2015-02-28 19:57 ` jan.de.kruyf
2015-03-01 9:27 ` Dmitry A. Kazakov
2015-03-03 8:42 ` jan.de.kruyf
2015-03-03 10:57 ` Dmitry A. Kazakov
2015-02-24 11:02 ` Jacob Sparre Andersen
2015-02-24 11:23 ` jan.de.kruyf
2015-02-24 13:43 ` Bob Duff
2015-02-25 9:07 ` jan.de.kruyf
2015-02-25 17:50 ` Simon Wright
2015-02-26 7:35 ` jan.de.kruyf
2015-02-26 14:57 ` Simon Wright
2015-02-26 19:36 ` jan.de.kruyf
2015-02-27 8:45 ` Simon Wright
2015-02-27 9:59 ` jan.de.kruyf
2015-02-28 9:57 ` Simon Wright
2015-02-28 19:08 ` jan.de.kruyf
2015-02-28 20:23 ` Simon Wright
2015-03-03 8:52 ` jan.de.kruyf
2015-02-24 15:30 ` Brad Moore
2015-02-24 16:52 ` Simon Wright
2015-02-25 3:01 ` Dennis Lee Bieber
2015-02-24 11:22 ` slos
2015-02-24 12:16 ` jan.de.kruyf
2015-02-24 11:24 ` J-P. Rosen
2015-02-24 12:10 ` jan.de.kruyf
2015-02-24 13:58 ` Simon Wright
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