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Re: Communication between Lab view and Controller via USB
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USB communication between C8051F320 and Lab view--error 1073807302
Jan 31, 2007, 1:10:07 AM1/31/07
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Thanks for the suggestion. I am able to create NI -VISA USB Device using the wizard and i am able to communicate with the device but i have a problem. I can transmit data from the host (PC) to the device but when i try to receive from the device i get an error .The error is as follows:
Error -1073807302 occurred at VISA Read in USBRawBulkMain.vi
Possible reason(s):
VISA: (Hex 0xBFFF003A) Unable to start operation because setup is invalid (due to attributes being set to an inconsistent state).
I am using the example VI. The link from where i downloaded is as follows: <a href="http://zone.ni.com/devzone/cda/epd/p/id/3622" target="_blank">http://zone.ni.com/devzone/cda/epd/p/id/3622</a>
Error -1073807302 occurred at VISA Read in USBRawBulkMain.vi
Possible reason(s):
VISA: (Hex 0xBFFF003A) Unable to start operation because setup is invalid (due to attributes being set to an inconsistent state).
I am using the example VI. The link from where i downloaded is as follows: <a href="http://zone.ni.com/devzone/cda/epd/p/id/3622" target="_blank">http://zone.ni.com/devzone/cda/epd/p/id/3622</a>
Dennis Knutson
Jan 31, 2007, 9:40:11 AM1/31/07
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My devices show up as NI-VISA USB but I'm not sure if that makes a difference and I'm not using USB RAW either. One thing that you can run is a VISA Property node like below and see what it reports. Also, what version of VISA are you using? If you are not using 4.0, you can download it from <a href="http://digital.ni.com/softlib.nsf/webcategories/85256410006C055586256BBB002C0E91?opendocument&node=132060_US" target="_blank">http://digital.ni.com/softlib.nsf/webcategories/85256410006C055586256BBB002C0E91?opendocument&node=132060_US</a>.
<img src="http://forums.ni.com/attachments/ni/170/227096/1/USB%20RAW%20Property.PNG"> Message Edited by Dennis Knutson on 01-31-2007 07:29 AM
<img src="http://forums.ni.com/attachments/ni/170/227096/1/USB%20RAW%20Property.PNG"> Message Edited by Dennis Knutson on 01-31-2007 07:29 AM
USB RAW Property.PNG:
http://forums.ni.com/attachments/ni/170/227096/1/USB RAW Property.PNG
USB communication between C8051F320 and Lab view--error 1073807302
Feb 1, 2007, 12:40:11 AM2/1/07
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Thanks for the reply. I am using NI-VISA 3.4 so i have downloaded V4.0.
In V3.4 i am not able to set the bulk out pipe and bulk in pipe according to my requirements how do i do it. I tried using the property node to set the above properties. I also tried to set them using MAX ->Devices and interfaces -> USB drivers ->right click-> open VISA test panel. i get the same error for both (-1073807302).
In V3.4 i am not able to set the bulk out pipe and bulk in pipe according to my requirements how do i do it. I tried using the property node to set the above properties. I also tried to set them using MAX ->Devices and interfaces -> USB drivers ->right click-> open VISA test panel. i get the same error for both (-1073807302).
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