National Instruments NI 6225 User Manual

Contents
M Series User Manual x ni.com
Pulse Train Generation.................................................................................... 7-21
Continuous Pulse Train Generation.................................................. 7-21
Frequency Generation ..................................................................................... 7-22
Using the Frequency Generator ........................................................ 7-22
Frequency Division ......................................................................................... 7-24
Pulse Generation for ETS ............................................................................... 7-24
Counter Timing Signals................................................................................................. 7-25
Counter n Source Signal ................................................................................. 7-26
Routing a Signal to Counter n Source .............................................. 7-26
Routing Counter n Source to an Output Terminal............................ 7-27
Counter n Gate Signal..................................................................................... 7-27
Routing a Signal to Counter n Gate.................................................. 7-27
Routing Counter n Gate to an Output Terminal ............................... 7-27
Counter n Aux Signal...................................................................................... 7-28
Routing a Signal to Counter n Aux .................................................. 7-28
Counter n A, Counter n B, and Counter n Z Signals ...................................... 7-28
Routing Signals to A, B, and Z Counter Inputs................................ 7-28
Routing Counter n Z Signal to an Output Terminal ......................... 7-28
Counter n Up_Down Signal............................................................................ 7-29
Counter n HW Arm Signal.............................................................................. 7-29
Routing Signals to Counter n HW Arm Input .................................. 7-29
Counter n Internal Output and Counter n TC Signals..................................... 7-29
Routing Counter n Internal Output to an Output Terminal .............. 7-30
Frequency Output Signal ................................................................................ 7-30
Routing Frequency Output to a Terminal......................................... 7-30
Default Counter/Timer Pinouts ..................................................................................... 7-30
Counter Triggering ........................................................................................................ 7-31
Arm Start Trigger............................................................................................ 7-31
Start Trigger .................................................................................................... 7-32
Pause Trigger .................................................................................................. 7-32
Other Counter Features.................................................................................................. 7-33
Cascading Counters......................................................................................... 7-33
Counter Filters................................................................................................. 7-33
Prescaling ........................................................................................................ 7-34
Duplicate Count Prevention ............................................................................ 7-35
Example Application That Works Correctly
(No Duplicate Counting) ............................................................... 7-35
Example Application That Works Incorrectly
(Duplicate Counting) ..................................................................... 7-36
Example Application That Prevents Duplicate Count...................... 7-36
When To Use Duplicate Count Prevention ...................................... 7-37
Enabling Duplicate Count Prevention in NI-DAQmx...................... 7-38

National Instruments NI 6225 Specifications

General

Brand	National Instruments
Model	NI 6225
Category	Media Converter
Language	English