i feel that AI START vi starts the data acquisition depending on the trigger conditions.
now ,if the trigger condition is say - Digital trigger and the number of pretrigger scans is 50, then i beleive the acquition would start only after the triggering signal is received.
if, the acquistion starts only after the triggering signal is received , how can the pretrigger samples be acquired. i mean the acquistion has not started before the trigger. so i beleive we effectively cannot acquire the pre trigger samples.
i know there is some link i am missing . is there any buffer on the daq board which acquires data continuously and transfers the data to the main memory only after the trigger is recei
ved?if yes, then what does the AI READ do?
can any body clarify this doubt.