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From: h_king2000 on 7 May 2008 06:10
Hi everyone,
 
I have my device developed, it used Atmel91SAM7, usb ports.
At first i have successfully communicate it with PC through REALTERMINAL, now i want through the real USB prot to cmmunicate.
I have a Labview8.0 , i thought i should use the VISA, but the VISA component don't work as i wished,  the created Controller can't display the actuel Port.
Furthermore, how can the LV find my usb device, i have no drive for it, cause it's a new Product.
 
So, what i can do now?
 
Thanks a lot!
Jin 
From: mathan on 7 May 2008 06:40
use <a href="http://www.codeproject.com/KB/system/DevicePropertySheet.aspx?df=100&amp;forumid=83880&amp;exp=0&amp;select=958032" target="_blank">devmgr.dll</a>
From: Dennis Knutson on 7 May 2008 10:10
I don't know what REALTERMINAL is but if it is similar to Hyperterminal and the USB ports show up in device manager as com ports, then you can use VISA. Look at the shipping examples for serial communication.
If your USB ports are not emulating a serial port, then you can create your own VISA driver. See <a href="http://zone.ni.com/devzone/cda/tut/p/id/4478" target="_blank">http://zone.ni.com/devzone/cda/tut/p/id/4478</a>&nbsp;for a starting point.
From: smercurio_fc on 7 May 2008 10:10
mathan wrote:use <a href="http://www.codeproject.com/KB/system/DevicePropertySheet.aspx?df=100&amp;forumid=83880&amp;exp=0&amp;select=958032" target="_blank">devmgr.dll</a> ????&nbsp; :smileysurprised:<img src="file:///C:/DOCUME%7E1/SMERCU%7E1/LOCALS%7E1/Temp/moz-screenshot-2.jpg" alt="">&nbsp;<img src="http://forums.ni.com/attachments/ni/130/4039/3/aeh.gif"> <img src="file:///C:/DOCUME%7E1/SMERCU%7E1/LOCALS%7E1/Temp/moz-screenshot-1.jpg" alt="">
From: mathan on 7 May 2008 10:40
That link helps in how to&nbsp;use devmgr.dll to list the USB devices attached to pc.
That's all.
That's a small starting point.
[Note: I like people pinpointing my mistakes.]
Thanks,
Mathan
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