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Changing the Read NMEA GPS SubVI.vi to work on Mac OS X using usb?

Hi,

Any help or advice on this would be appreciated.

I am using Mac OS X Tiger on an ibook G4 with Labview 7.1. The ibook only has either firewire or usb so I got a usb GPS receiver (BU-303) from Globalsoft http://www.usglobalsat.com/item.asp?itemid=11&catid=13. Their website includes a device driver for the mac and an application that allows me to view the GPS output such as lattitude, longitude, speed etc. from their application.

I would like to try and use Labview instead to plot this information because it will allow me to log this information as it changes and generally give me more flexibility. I came across a VI that was designed to work with a serial connection for windows
http://sine.ni.comappsweniepd_web_display.display_epd4p_guid=DB0882E37369122DE034080020E74861&p_node=DZ52363&p_source=external

I would like to try to adapt this somehow to work on my Mac with usb, if someone could suggest what steps to take or things I should consider and post them, that'd be a great help to me,

Thanks in advance,
Robert
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I suspect it's too much to ask that they have a development kit that you could steal code from? 

Do they have a command line application?  If so, you could pipe the output to a file or to labview directly. 

 

USB isn't as easy to work with as serial, so building a driver fron scratch is not something for the faint of heart. 

Have you considered a usb to serial converter and use a serial gps?

 

BTW, good taste in computers.

Sheldon

 

Technical geek, engineer, research scientist, biodegradable...
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Robert,

Did you find something to work. I would like to read absolute timing information to ~ms accuracy over USB.

Frank
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