Re: FPGA for PCI based servo control board

["alex" <telecomt-at-tht.net>]

OK, now I know!
Will ask him again.
Jon, I would like very much knowing your opinion on a subject of unloading
real time loops to a small / cheap networked PC.
Can it be done in DOS?
Can it be done it RTLinux in a sense if it will be enough horsepower for
16 bit 386 machine to run several loops simultaneously?
This will solve networking issue since network doesn't have to be in real
time any more.
In Linux case it probably will be another process using some kind of pipe to
pass
info into real time loop.
Regards, Alex
----- Original Message -----
From: Jon Elson <elson-at-pico-systems.com>
To: Multiple recipients of list <emc-at-nist.gov>
Sent: Friday, April 04, 2003 1:31 PM
Subject: Re: FPGA for PCI based servo control board


>
>
>
> alex wrote:
>
> >This morning I just got the same kind of conformation from our Linux
guru.
> >He said that any network driver should work for RTLinux since this is
just a
> >patch.
> >
> >
> Unfortunately, you and he didn't communicate the key point.  What is
> wanted here is for
> a REAL_TIME task to use the network card for a private protocol.
>  Real-time tasks
> run in a completely different environment from Linux tasks, basically
> running in
> x86 real mode, with no kernel services available.
>
> Yes, standard net drivers will work for standard Linux networking under
> the control
> of the operating system, but that is a totally different thing.
>
> Jon
>