- From: SA <n0td1scl0s3d_at_ntlworld.com>
- Date: Mon, 26 Sep 2005 19:39:36 +0100
Terry, I have fairly strong views one this software - after being subject to it I sent the card I had back and got a refund and apology from NI and I suggest you do the same. My card (can't remember what it was) is not support under comedi - after long discussion with NI it appears that they will not release the documentation required to write a driver and the distinct impression I got from NI was that this was in order to try to protect them from having their cards copied. The softaware DAQ MX base is based on labview runtime libraries and uses an indirect abstraction of the PCI bus with a minimal kernel driver to communicate with the card. A significant problem is that the library needs about 5 seconds of CPU to initialise - this occurs everytime you open the library and prevents you from doing all sorts of useful stuff. I got the distinct impression that linux support (longer term) was an extremely iffy prospect and that relying on DA MX base was likely to lock me into old systems / kernels and old hardware. As an example NI were unable to supply a 64 bit version of the library making it impossible to use on athlon 64s (unless you run a retro kernel) because the 32 bit library is incompatible with the 64 bit kernel driver. NI waffle on about making everything available in the future sometime - after long discussion I think this means in the long and distant future when people are no longer interested in the hardware. It is a shame because one of the things that used to make NI cards worhwhile was the comprehensive documentation - we basically aren't using any new NI stuff in our labs now. SA On Friday 16 Sep 2005 11:10, Terry Barnaby wrote: > Hi, > > We are working on a project that will probably use three NI PCI-6143 data > acquisition cards under Linux Fedora Core 3. It looks like the NI PCI-6143 > A/D card is not supported by Comedi at the moment. > Some questions: > > 1. Any ideas on how easy would it be to add a driver to Comedi to support > this card (We have Linux driver development experience) ? > 2. Has anyone any views on the NIDAQmx-base driver software that NI provide > for this board ? > > Cheers > > > Terry > > _______________________________________________ > comedi mailing list > comedi_at_comedi.org > https://cvs.comedi.org/cgi-bin/mailman/listinfo/comedi
Received on 2005-09-26Z17:39:36