USB DRIVER FOR IMAQ

[TommiK]

Thanks for your fast answering. Reading this thread I didn't noticed the driver is alreadey fixed for german XP. Sorry.
So the problem seems to be anywhere else. The camera is shown correctly by enumerate function. Also it can be used in Vision Assistant 8.2.1.
Now I tried the exapmples shipped with NI IMAQ-USB-drivers: "snap.vi" only returns black images, "grab.vi" works fine. Maybe the cam just reacts too slow and I only have to enter a a few (milli)second to wait.
Thanks for your help.

[TCPlomp]

Tommy,

start a new thread with your code attached.

Ton

[TommiK]

Thx for this suggestion, but I just used another camera which works.

Thomas

[Andrzej_R]

Hi,

I plan to upgrade to Labview 8.5 and Vision Development Module 8.5.

When USB driver will be uprgraded to support new versions ?

Is there a chance for IMAQ USB driver to become part of regular NI distribution ?

Andrew

[Brad]

Hey Andrew,

Good timing.  We will soon be releasing a new USB installer that has support for LabVIEW 8.5 and also includes a new Express VI for USB configuration. If you wanted to use the current installer with LV 8.5, you could copy files, but if you don't mind waiting a few days (by early next week it should be up), the new installer will work with LV 8.5 and have a nice new Express VI.

In terms of adding USB support to our Vision Acquisition Driver, we have been looking into this option, but we don't have any timelines yet.

Thanks,

Brad

[Ragio78]

Dear Mr. Brad, I’ve a serious problem:

I need to use two webcams and they may capture the image two seconds one of other.

I’ve initialized the cam and I can use the snap for capture the image, but snap  works badly: the time of acquisition increases and after the 15/20 cycle a timeout error stops the program.

I ‘ve tried with only one cam but  the situation  doesn’t change. Snap doesn’t work.

I ‘ve changed the driver of webcam, I’ve also tried to work with lab view 8, lab view 8.2 , lab view 8.1 , windows xp sp0, sp1, sp2 but the system isn’t able to operate.

I’ve tried  on 3 different computers.

Six mounts ago the snap worked and I captured image from two cameras.

In conclusion I hope that you can find  a solution to resolve this problem, in addiction to this favour I’d like to  have a upgrade of imaq usb camera  that could  make work more than 2 cameras simultaneously in grab and   if you could realize this . Finally I want to know  how much does it cost in euro or dollar.

I thank you in advance for you help.

[Brad]

Hello Ragio,

The USB driver is intended for hobbyists and educational purposes. For applications that require robustness or more flexible functionality like multi camera support, we recommend using a 3rd party driver like Luminera or using our NI-IMAQdx driver with a 1394 web cam that follows the DCAM standard like the Unibrain Fire-i or Apple iSight.

Sorry this free example USB Driver doesn't meet every need, but I hope this information helps,

Brad

[Alex_Muz]

I am using with Labview v8.0 and NI Vision 8.5 and Windows XP SP2 Hebrew(Israel) version. I followed the explanations in disscussion forum and installed USB Foreeign OS.DLL and get following errors(see attached files).

Please help

[RavensFan]

You forgot the attachment.

[Alex_Muz]

I am sorry, I forgot the error file attachment.