Error 0xBFF6002D when capturing images >32Mpixel

[beuvink]

When using images that are smaller then 32Mpix @ 16bit, everything works fine. When we specify the image acquisition area larger (required buffer >64Mbyte) we get a error dialog:

'Operating system denied request to lock down memory'

I have the feeling that this has something to do with the memory expansion of the PCI-1424. The first versions supported up to 64MB the one we have has 128MB installed.

'Error 0xBFF6002D

Operating system denied request to lock down memory'

[RikPrins]

Hello,

I did a search on your problem and found out that this is something that some more users experiance. They where able to solve it with the following Knowledge Base. It is a knowledge base for a different IMAQ board but maybe the solution works also for you. The link to the Knowledge Baseis:

http://zone.ni.com/devzone/conceptd.nsf/webmain/b9a6c07c448c099586256fc60078328e

A link to an other Forum thread about this issue:

http://forums.ni.com/ni/board/message?board.id=200&message.id=6776&requireLogin=False

Hope this helps you to solve your issue.

RikP

Applications Engineering NI

[beuvink]

Thanks for you reply,

I did already find that information but I was afraid it wouldn't help me. I tried now and indeed it didn't solve my problem. But after reading it carefully again I noticed some remark by Scott R: ...Each individual buffer is allocated within a continuous memory block.  Each of these blocks is limited to 64MB in size.  ....

I think this is the main cause of my problem.

Is there any way of working around this? At this moment I am using a windows 2000, Dell optiplex PC with 1GB of RAM and >500MB of RAM availble by task manager. I need to capture a larger then 32M pixel area-scan image and it should be done in a buffered list if possible. In the future this size will become even bigger...

The problem can be reproduced in the measurement explorer so it doesn't seem to be related to Labview.

Regards,

Mark