Period Measurement........................................................................................9-6
Frequency Measurement .................................................................................9-10
Position Measurement .....................................................................................9-15
Pulse Train Generation ....................................................................................9-22
Frequency Generation .....................................................................................9-23
Frequency Division .........................................................................................9-24
Counter Timing Signals .................................................................................................9-25
Counter n Gate Signal .....................................................................................9-27
Counter n Aux Signal ......................................................................................9-27
© National Instruments Corporation
(Averaged)......................................................................................9-11
Two Counters .................................................................................9-12
ix
Contents
NI USB-621x User Manual