Rookie team Question error 7

Technical NI LabVIEW
1

I am using labview with the cmucam2 app, when I press run I error 7 occurred at open file+.vi:open file. I need help to move foward.

2

We are getting this same problem and do not know where to turn next. Our team did have the camera working once but now we only see the following when LabView application is started. Installed NI Visa but this did not appear to help. Using USB to Serial connection on camera and this is picked up in Visa Interactive Control. Only seeing green light on camera when is is powered on. Did see red once before but not now. Also need assistance!!!

-1073807246

Property Node (arg 1) in VISA Configure Serial Port (Instr).vi->CMUcam2.vi->CMUcam2 GUI.vi

3

We are still having problems and get the following error when camera is powered on and application is started in Labview. Followed all instructions in PDF FRC2006 Labview-based CMUcam2 Demo and see the following error in Labview. Visa is installed and com port is configured correctly. Can any one help.

-1073807339

VISA Read in query for result from serial port.vi->CMUcam2.vi->CMUcam2 GUI.vi

4

We went through some process using MAX and setup the COM port, then it started working for us. I don’t remember what the exact steps were, though. If no one helps you out by tomorrow then I can give you instructions from the team’s laptop.

5

I always knew it was a bad idea to only upload/provide patches to the software instead of a full version every time we updated it. However, ChiefDelphi would only let us upload up to 3MB to the server while the full package was somewhere around 5MB. Oh well.

Please remove the current CMUCam2 LabVIEW application from your computer, and download the package provided in this post:

http://www.chiefdelphi.com/forums/showpost.php?p=561979&postcount=10

This should work without problems.

-Danny

6

Here’s a list of things that could be wrong:

  1. Do you have the correct COM port selected in the CMUCam2 Application?
  2. You’re not connecting the camera through the Serial port to the computer AND the TTL port on the robot controller, are you?
  3. Is your backup battery FULLY CHARGED? The camera uses the backup battery for its power, and if the camera isn’t getting the absolute full charge then the camera won’t communicate.
  4. Make sure all programs that could be using that port are shut down; this includes hyperterminal, IFI loader, etc…

I want you to review this thread and see if you can get ANYTHING out of the camera:

http://www.chiefdelphi.com/forums/showpost.php?p=435483&postcount=9

If you cannot get anything to come out of your camera, and you are dead sure your camera is being powered at the correct voltage, then you may have a bum camera. I’d like for you to debug this a bit more before saying you have a bum camera, however, since bum cameras aren’t a common occurrence.

-Danny

7

We also have this problem. After error 7, at the bottom, it says NI-488 board not found. What is this? Will try the other steps tomorrow & hope it helps.

8

The error it’s giving you is really just a generic error for the “class” of errors that the error code can represent. Some errors you may run into will have up to 5 or more “possible problems”, it’s up to you to decide which “problem” the error refers to in order to troubleshoot the error. In this case there are 2 errors, one that says that the file is not found and one that says that the NI-488 board is not found - since you’re not working with an NI-488 board (GPIB interface board) it’s safe to say you can ignore that possible reason for the error. :wink:

-Danny

9

so that’s what the problem was! thanks for clarifying that, we may get labview working soon! :slight_smile: