hi
i am trying to creat a
digital pluse of user defined high and low pluse time, then i aquired
this signal back via analog input channel of DAQ ni USB 6008. i wired digital output channel to Analog input channel AI0 of USB 6008. when i run the program at first for some cycles it shows me proper low and high pulses but then it
is giving me problem when i set the PULSE HIGH TIME to 1000ms and PULSE
LOW TIME to 1000ms. it some time shows randomly nothing or some time
continusly high pulse or low, but not exactly 1 second high or 1 second
low all the time.
my first question is that is it the right
approach to creat a digital pulse or there is some other efficient way
to create such pulse?
second why it is skipping a cycle durring
the aquasition, because when i connect the digital output to
osciliscope it seems to be OK but when i aquired the same pulse back in
the vi it works fine for like 10 cycles and then shows some kind of
noise for 2 to 3 cycles repeatedly and then again back to normal
transitions as shown in attach image file?
plz have a look on my vi,i am posting the vi for some good suggestions?
it really makes me worried that why it is not working as expected.
thanks
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