09-08-2009 05:38 AM
while i use counter 0 for frequency generation, i want to use the other counter of USB 6211 (counter 1) for generating a single pulse of say 10 mS synched to counter 0 as i have two counter channels.
i get an error message as mentioned in the block dia of the vi enclosed.
any suggestion!
thanks
m p sarma
09-09-2009 01:44 AM
Hi,
Possible cause: There are several cases where this error can occur. A common case is when the device is in use by another program/VI, or a previous DAQ task did not release the device resources.
Solutions: Make sure you have freed the device for use by another program or task instance. For example, you might not have wired a stop condition to a DAQ Assistant Express VI configured for single point acquisition.
Since you want to synchronize two channels on DAQ check out the tutorial which will guide you to do the same:
http://zone.ni.com/devzone/cda/tut/p/id/3615
http://zone.ni.com/devzone/cda/tut/p/id/4322
Also refer the following forum posts:
http://forums.ni.com/ni/board/message?board.id=180&message.id=31479&requireLogin=False
http://forums.ni.com/ni/board/message?board.id=232&requireLogin=False&thread.id=2039
Kudos are welcome!