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List:       linux-rt
Subject:    AW: [rtl] Servo Control with rtlinux
From:       "Jens Gassmann" <jens.gassmann () atomix ! de>
Date:       2002-04-25 10:09:19
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Hi Thomas,

Thank you for the answer, i tried to use an 486DX2/66, but the
perfomance is no enough, so i order an programmed controller, that i now
can control 20 servos over the I2C-bus on an simple parport-adapter
(http://www.e-online.de/public/borchers/i2c/softhard.htm ). I hope this
will run better. With rtlinux the servos have many jitter.

Also i can programm the i2c simple with perl, my native language.

Greetz
Jens



-----Ursprüngliche Nachricht-----
Von: owner-rtl@rtlinux.org [mailto:owner-rtl@rtlinux.org] Im Auftrag von
Thomas Sauter
Gesendet: Donnerstag, 25. April 2002 11:13
An: rtl@rtlinux.org
Betreff: Re: [rtl] Servo Control with rtlinux


Hi Jens,

i wrote a module generating the servo-timings with a United Instruments 
PD2-MF multi-io-card with a 1GHz Pent. I guess if you only use a small 
amount of threads it may work. In my case there are running a lot of 
concurrent threads and the timing-jitter caused the servo making a lot 
of noise, so i used a separate ATMEL-Controller for generating the 
servo-timings.

Thomas

Jens Gassmann wrote:

> Hi everybody
> 
> 
> One of you has experience with the control of model construction
servos
> over that parallel port haven I has only old scripte with new rtlinux
> 3.1 and kernel 2.2.19 not to be running. 
> 
> Thanks 
> 
> Jens Gassmann
> 
> ANGEL Internet Services GmbH
> LütticherStr. 14
> 50674 Köln
> 
> Tel.: 0221/944031-0
> Fax.: 0221/944031-8
> Mail: gassmann@angel.de 
> WWW : http://www.angel.de/
> 
> 
> 
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> 
> 
> 


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