newbie

Hi,

We are starting up a data acquisition project and I was hoping of using 
Linux with Comedi.  I am <presently> limited to a laptop that we have 
available but will be sourcing a PCMCIA DAQ <looking at National 
Instruments DAQCards>.

I had a look at the documentation and supported hardware <as well as some 
of the mailing list archive files>.  I have had some experience with 
National Instruments card in the past <DAQCard 700 with NiDAQ under 
Windows>.

Originally I was thinking of implementing a ring buffer (sampling 
continuously and when a valid data segment is available, ship it off to a 
vector, expecting 100ms of relevant data every 5-10 seconds).  I believe 
that in order to do this I would have to use RTLinux (in order to get 
accurate timing, I don't think the National Instruments cards implement 
ring buffers).

I am using Debian <woody>, kernel 2.4<.18>, IBM ThinkPad iSeris 1400.  If 
can be relatively certain of the hardware and kernel all playing nice 
together I am fairly confident that I can get this to do what I want.  The 
trick, in my very limited experience with linux, is being sure that the 
hardware does all play nice together.

Any experience, recommendations, or ideas with respect to specific cards, 
approaches or "places to look" would be appreciated.

tia

-- 
Luc Lefebvre                                 o
                                            /`-'
Open Source, a strategic choice             \		www.eff.org
for mission-critical applications        ___/___./	www.publicknowledge.org

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Received on 2002-10-30Z20:01:33