16 | ni.com | NI USB-6000 User Guide
PFI 0 and PFI 1
Using PFI 0 as a Counter Source
You can configure PFI 0 as a source for counting digital edges. In this mode, rising- or
falling-edges are counted using a 32-bit counter. For more information, refer to the NI USB-6000
Specifications document.
Using PFI 1 to Trigger an Analog Input Acquisition
You can configure an analog input task to wait for an edge on PFI 1 before starting the
acquisition. To do this, configure the AI Start Trigger source to be PFI 1 and specify either
rising- or falling-edge.
Where to Go from Here
This section lists where you can find example programs for the NI USB-6000 and relevant
documentation.
Example Programs
NI-DAQmx driver software includes example programs to help you get started programming
with the NI USB-6000. Modify example code and save it in an application, or use examples to
develop a new application, or add example code to an existing application.
To locate NI software examples, go to
ni.com/info and enter the Info Code daqmxexp.
For additional examples, refer to
zone.ni.com.
To run examples without the device installed, use an NI-DAQmx simulated device. For more
information, in Measurement & Automation Explorer (MAX), select Help»Help Topics»
NI-DAQmx» MAX Help for NI-DAQmx and search for simulated devices.
Related Documentation
Note You can download these documents at ni.com/manuals.
Each application software package and driver includes information about writing applications
for taking measurements and controlling measurement devices. The following references to
documents assume you have NI-DAQmx 9.8 or later, and where applicable, version 8.5 or later
of the NI application software.
NI USB-6000
The NI USB-6000 Quick Start packaged with the NI USB-6000 describes how to install
NI-DAQmx and NI application software, install the device, and confirm that your device is
operating properly.
The NI USB-6000 Specifications lists the specifications to which the device complies with.
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