Counter N Gate Signal; Routing A Signal To Counter N Gate; Routing Counter N Gate To An Output Terminal; Counter N Aux Signal - National Instruments Data Acquisition Device NI USB-621x User Manual

Counter n Gate Signal

Counter n Aux Signal

© National Instruments Corporation
The Counter n Gate signal can perform many different operations
depending on the application including starting and stopping the counter,
and saving the counter contents.

Routing a Signal to Counter n Gate

Each counter has independent input selectors for the Counter n Gate signal.
Any of the following signals can be routed to the Counter n Gate input:
•
(USB-6210/6211/6215 Devices)
• (USB-6212/6216 Devices)
•
(USB-6218 Devices)
• AI Reference Trigger (ai/ReferenceTrigger)
• AI Start Trigger (ai/StartTrigger)
• AI Sample Clock (ai/SampleClock)
• AI Convert Clock (ai/ConvertClock)
• AO Sample Clock (ao/SampleClock)
In addition, Counter 1 Internal Output or Counter 1 Source can be routed to
Counter 0 Gate. Counter 0 Internal Output or Counter 0 Source can be
routed to Counter 1 Gate.
Some of these options may not be available in some driver software.

Routing Counter n Gate to an Output Terminal

You can route Counter n Gate out to any output PFI terminal.
The Counter n Aux signal indicates the first edge in a two-signal
edge-separation measurement.

Routing a Signal to Counter n Aux

Each counter has independent input selectors for the Counter n Aux signal.
Any of the following signals can be routed to the Counter n Aux input:
• (USB-6210/6211/6215 Devices)
•
(USB-6212/6216 Devices)
• (USB-6218 Devices)
PFI <0..3>
PFI <0..15>
PFI <0..3>, PFI <8..11>
PFI <0..3>
PFI <0..15>
PFI <0..3>, PFI <8..11>
8-27
Chapter 8 Counters
NI USB-621x User Manual