Experimental Physics and
Industrial Control System

Heinrich du Toit <[email protected]> · Tue, 11 Sep 2007 10:26:19 +0200

I have this stupid old hardware system.
It is actually very simple. It controls a stepper motor.

But you only have stop/go command
and a analog feedback
but the feedback lags a bit.
This requires you to quite accurately issue stop/go to this device to
position the motor :)

Anyways I think I'm rather going to replace hardware than try to make
this hardware work on new software. 
:)

I'm after all actually an engineer ... and not just a programmer :D

On Mon, 2007-09-10 at 09:43 -0700, Emmanuel Mayssat wrote:
> Hello,
> 
> I was wondering what would justify moving to RT linux?
> I was actually contemplating doing the move to RT myself, but finally
> decided against it.
> 
> All RT-required feedback/acquisition/etc are implemented in
> hardware/electronics. As a result, my IOCs don't have to react
> Real-Time.
> 
> But could you describe a "real" situation where RT is necessary? 
> Maybe if you have an IOC which is connected to a device that generate
> hardware interrupts, etc. but so far I never encountered such a device.
> 
> Thanks,
> 
> --
> E
> 
> On Mon, 2007-09-10 at 05:59 -0500, David Kline wrote:
> > you can use >=2.6.18 linux kernel/w patch from osadl 
> > (http://www.osadl.org/). that will give you rt behavior.
> > /david
> > 
> > Heinrich du Toit wrote:
> > > Hi
> > >
> > > Did somebody else out there use RTLinux for EPICS?
> > >
> > > -Heinrich
> > >
> > >   
> > 
> > 
> 

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System