data acquisition with linux

data acquisition with linux

Post by Thomas Wolfange » Thu, 08 Jan 1998 04:00:00



Hello,

I wonder whether it is possible to do data acquisition using linux.
Has anybody made experiences on this topic, i.e. programming
drivers for interface cards, a list on which interface cards work
with linux...?

Thanks in advace,
Thomas Wolfanger


 
 
 

data acquisition with linux

Post by Eric Lee Gre » Thu, 08 Jan 1998 04:00:00




>I wonder whether it is possible to do data acquisition using linux.

Certainly. It's possible to do data acquisition with a Commodore 64
too. Just not easy :-}.

Quote:>Has anybody made experiences on this topic, i.e. programming
>drivers for interface cards, a list on which interface cards work
>with linux...?

You'd probably need to write your own drivers for any interface cards
you need. But drivers aren't the big deal. After all, you can always
use a DOS machine to take the data, time-stamp it, and ship it down a
network interface to you. The big deal is SOFTWARE. I.e., being able to
rapidly develop user interfaces and process that data into humanly usable
forms.

Right now my brother is using WonderWare under Windows NT. He hates it
because a bug in one of his programs will crash the entire machine
("Wonders of a common system heap", he bitterly complains), but
there's no way he could meet his deadlines or get decent functionality
via DIY. For one thing, once the data is collected by WonderWare, it can
be shared via embedded "data" objects with the OLE-aware application of
choice. So a lot of the reports are actually done by Excel or Access...

There's no technical reason why such a program can't exist on Linux, but
nobody has done it. The closest thing I've seen on Unix is HP's RTAP, which
still isn't as "easy" as WonderWare (and a helluva lot more expensive).

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data acquisition with linux

Post by John M. Mil » Thu, 08 Jan 1998 04:00:00


This from Brad Dixon here at GIT;  I don't know if there has been more
progress:

bd I've made a set of RPMS for the Real-Time linux patches being developed by
bd Michael Barabanov and Victor Yodaiken at New Mexico Tech. They are
bd available at:

bd http://r52h146.res.gatech.edu/~bdixon/rtlinux/

Regards -- john mills

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data acquisition with linux

Post by David M. Co » Fri, 09 Jan 1998 04:00:00




Quote:>I wonder whether it is possible to do data acquisition using linux.

See http://SAL.KachinaTech.COM/D/index.html

Dave Cook

 
 
 

data acquisition with linux

Post by root » Fri, 09 Jan 1998 04:00:00


You'd probably need to write your own drivers for any interface cards
you need. But drivers aren't the big deal. After all, you can always
use a DOS machine to take the data, time-stamp it, and ship it down a
network interface to you. The big deal is SOFTWARE. I.e., being able to
rapidly develop user interfaces and process that data into humanly usable
forms.
------------
Indeed you would as Eric suggested. Having written such drivers for both Dos
and Linux I can say that things are usually easier under Linux than DOS. Under
Linux you can often get away with simply opening a device such as "/dev/cua1"
and reading from it or writing to it. Similar simplicity can be realized when
reading from and writing to parallel devices. More information can be found
in the pages of the LDP.
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data acquisition with linux

Post by Sebastian Kuzmins » Fri, 09 Jan 1998 04:00:00


] I wonder whether it is possible to do data acquisition using linux.
] Has anybody made experiences on this topic, i.e. programming
] drivers for interface cards, a list on which interface cards work
] with linux...?

   Data aquisition is pretty straightforward under Linux.  There are
many supported analog/digital I/O cards, and writing drivers for a new
one isnt too difficult.

   I suggest you start by looking at the Linux Lab Project:

http://www.llp.fu-berlin.de/

Sebastian

 
 
 

1. Data Acquisition using linux with [Data Acquisition Processor] DAP

Hi
Can Anybody Suggest me how to start off with  data acquisition
progamming in c on linux ,using the DAP card ....it would be kind if
someone let me know some websites which guides how to start
programming or some sites where examples are there .........i have
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DAP card

can any body please give some guide lines

thnax
james

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