09-19-2006 04:51 AM
09-19-2006 05:06 AM
Which DAQ board do you ahve??
Does it have analog output channels??
It if does, you may generate a square wave which would be bipolar.
In Find examples>>Hardware input output>>DAQmx>.analog generation>> voltage>> Cont Gen Voltage Wfm-Int Clk.vi should serve your purpose
Note: In AO channels, you will not achieve pulse rates as high as you would get with a counte/timer channel
Hope this helps
Regards
Dev
09-26-2006 12:37 AM
09-28-2006 03:05 AM
09-29-2006 06:57 AM
Hello, everyone.
Mr.Arase, thank you very much for your kind advise.
I tried the way you adviced me using two counters. The VIs seemed just what I wanted.
My version of LabView is 7.1, so there were no problem in function.
I've made two "Gen Dig Pulse Train-Continuous.vi" as sub VI's and linked Initial Delay by making new connector.
After setting the frequency to 100kHz, I've checked the wave by using oscilloscope.
Before I could set the delay time, I came up to the problem that each wave from ctr0 & 1 won't start in the same timing.
It seems that there are no meaning of setting the delay time in this situation.
Phase delay could be seen in a frequency higher than 70Hz. (or small?)
Is there any way to solve this problem or is this something to do with the limit of using two counters?
Actually, there are tough overshoots in each square wave. (it doesn't really matter)
My DAQ-card is 6036E.
Please help me out with this problem.
I don't mind if you use English or Japanese, either comfortable way for you.
Thank you very much for your reply.
Kouim
10-02-2006 01:46 AM
10-05-2006 01:48 AM
Hi, Mr. Arase
Thank you so much for the "sync_2_counters.vi."
It worked out perfectly and I am getting two waves I desired to have!
I've connected OP-AMPs and made the wave reverse, but edge of the pulse has delayed.
Well, it seems that there are no problem in the digital side, and now I have to configure the analog circuit.
Thank you very much for your advice.
Regards
Kouim
10-05-2006 01:55 AM