Start a counter with SOURCE, stop with GATE?

Question

I would like to START a DAQ-STC counter using the rising edge of the SOURCE
input, and stop the counter with the rising edge of the GATE input. So I
have two seperate digital lines I want to use to start and stop. Any pointers
on how to do this? (Please respond via email also)
Thanks,
J. Apple

Answer 1

Hi,
Thanks for the reply, GarPar. I think I have solved the triggerring a counter with another with your and Stefan&Kekin's help. Now, I can generate two counter outputs (chip select and clock) as I wanted but I couldn't read the National Semiconductor differential sensor board output at the same time. I have attached the Labview I have written and scope screenshot which shows the chip select(signal 1), clock(sig 2) and output(sig 3). As I told previously, first I generate Chip select signal(1), then at falling edge I generate clock signal(it keeps going on). Finally, I try to read starting the output at falling edge of Chip select counter using clock counter output as the clock source for my read Timing.vi. BTW, Labview  gives an -200560 error after the Read.vi which is an timeout error although I don't need any external connection since I am taking both trigger and clock output internally. And I checked that I connect the output pin to the line 6 of Ni 9401 (many times )
Error -200560 occurred at an unidentified location
Possible reason(s):
Wait Until Done did not indicate that the task was done within the specified timeout.
Increase the timeout, check the program, and make sure connections for external timing and triggering are in place.
Can you see any apparent problems in my labview program? Finally, I am using
o ctr2 as Chip Select counter,
o ctr0 as Clock 
ctr2InternalOutput as clock trigger
o line 6 as digital input
ctr0InternalOutput as read clock
ctr2InternalOuput as read trigger 
which are shown in my Labview program. Thanks for your help in advance.
Regards,
Ouz
National Semiconductor (Intern)
Attachments:
Ni9401_triggeringclockcontinuously.vi ‏33 KB
ni9401_screenshot.pdf ‏61 KB