Peter, Dan, Thank you very much for the useful information.
Danilo Melges --------------------------------- Biomedical Eng. Student (COPPE/UFRJ/BRASIL) --- [EMAIL PROTECTED] escreveu: > Peter, Danilo: > > As you said, these VIs do expect that you have some > pretty detailed > knowledge of USB. > > One thing worth noting is that NI-VISA can't access > your normal USB devices > that already have Windows drivers. NI-VISA is > either the sole driver for a > given device, or it can't access it at all. So you > can't use it to send > commands to random devices, like you could with "In > port" and "Out port". > > We do have an article that might help: > http://zone.ni.com/devzone/conceptd.nsf/webmain/6792BAB18242082786256DD7006B6416?opendocument > > Dan Mondrik > National Instruments > > > > > > "Peter M DeVita" > > <[EMAIL PROTECTED] To: > "Danilo Melges" <[EMAIL PROTECTED]>, > <[EMAIL PROTECTED]> > m> cc: > > Sent by: > Subject: Re: Acquiring from USB > <[EMAIL PROTECTED] > > a.army.mil> > > > > > > 01-29-2004 03:34 > > PM > > > > > > > > > > Hi Danilo, > LV 7 has some drivers though I must say they are > really buried! > > I found them by going to the LV help index and > asking for USB. > > In system there are 3 vi's that appear under: > Instrument io> Visa> Visa Advanced> Interface > Specific> Visa >>> > > If anyone knows of a ApNote or WhitePaper on using > these it would be > helpful. These vi's expect some knowledge of how USB > works. It is not clear > to me if these can be used for compound data devices > (eg: cameras with both > video and audio streams). > > If you use them for an app, it would be useful to > share your experience > with > us. > > regards, > peter > > Eng. Peter M DeVita, > MASc, MBA, P.Eng. > ----- Original Message ----- > From: "Danilo Melges" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Wednesday, January 28, 2004 8:46 AM > Subject: Acquiring from USB > > > > Hello to everyone, > > > > I'm a LabVIEW begginer and I'm studying how to > > write/read data to/from ports. > > Is there any VI that writes/reads data to/from USB > > port (like "In port" and "Out port")? > > I've searched on the SearchVIEW.net and found no > > results. I've also taken a look at OpenG... > > > > Thanks in advance, > > > > Danilo Melges > > ------------------------ > > Biomedical Eng. Student (UFRJ/RJ/Brasil) > > > > > ______________________________________________________________________ > > > > Yahoo! GeoCities: a maneira mais f�cil de criar > seu web site gr�tis! > > http://br.geocities.yahoo.com/ > > > > > > > > ______________________________________________________________________ Yahoo! GeoCities: 15MB de espa�o gr�tis para criar seu web site! http://br.geocities.yahoo.com/
