USB Drivers for labview and the FTDI chips

[Blueeyedpop]

Has anyone out there implemented the FTDI dll's in LabView?

[martin_00]

hi

which kind of chip do you use? if you use a usb to
serial chip, you dont need to implement anything,
just install the drivers in your OS and access the
serial port via visa..

[pallut]

The question is : DLL FTDI not : VCD (virtual com driver)
The VCD seem work good but is slower than DLL ...
THe problem is that the use of DLL FTDI break hardly my Labview 6.0i under windows 98SE...

[Adnan_Kurt]

Hi,

I am using LabView 7.1 on Windows XP Pro SP3. I am trying to build a small oscilloscope (Kindo -just for visualization of waveforms during electrical stimulation) with 30Hz BW. I have modified a DLP-TEMP unit for this purpose (www.dlp.com), which uses FTDI's FT232 chip. The board A/D loop is about 1.5ms. When I am polling data from the device, I cannot get more than 9 samples per second.

I would like to get advise on how to speed up the data reading process from the USB port, with dll or as virtual serial ports.

Regards,
Adnan Kurt 

[Intaris]

Windows 9 (SE or not) and USB is not a good combination.

I don't think the implementation of such a driver without detailed info from the manufacturer would make much sense.  I would know, I've hacked together a few USB drivers in the last years.

Shane.

PS Got sucked in by a late thread derail.  :Angry:

Message Edited by Intaris on 01-28-2010 08:41 AM

[Dennis_Knutson]

How your program is structured will have a great effect on how fast you can read. You have not posted it so unable to comment on how you might be able to speed things up.

If you want to try the dll, there are some functions here.