Re: [Linux-gpib-general] ...and inching closer...

[Sridhar A. <sa...@ge...>]

Hi all on the linux-gpib list - I wonder if you can answer this
question...

When I want to download a waveform from the oscilloscope, is there a way
for the user-level program to be informed when the acquisition is done?
The scope will take 500ms to finish, and is there an interrupt that is
generated by the linux-gpib code when the oscilloscope sets the Operation
Complete bit in the status register?  Or is there a way to poll
periodically from the user level?

I want to ask the scope to average 500 triggers (1ms apart), and then I
want to download those data.  If I simply send the "acquire" command and
then immediately request the data "curve?", the 500 averages won't be over
- what will happen?  Does the software hold the request until the scope is
done?  Or is the command sent out right away (in which case I think the
scope responds with the 'incomplete' data - not enough averages...)

I apologize if this question isn't very clear...

Thanks,
Sridhar.

Sridhar Anandakrishnan  		email:	sa...@es...
442 Deike Bldg				Phone: 	(814) 863-6742
Pennsylvania State University		Dept:	      863-6052
University Park, PA 16802-2711		Fax:          863-8724