National Instruments NI USB-621x - Manual (Page 175)

Index
© National Instruments Corporation I-7 NI USB-621x User Manual
when to use with ground-referenced
signal sources, 5-10
NRSE connections
using with floating signal sources, 5-8
using with ground-referenced signal
sources, 5-13
when to use with floating signal
sources, 5-4
when to use with ground-referenced
signal sources, 5-10
O
on-demand
acquisitions, 4-9
edge counting, 9-2
timing, 4-9
order of channels for scanning, 4-7
other software, 1-2
output signal glitches, B-3
output signals, minimizing glitches, 7-2
overview, 2-1
P
pause trigger, 9-31
period measurement, 9-6
buffered, 9-7
single, 9-7
PFI, 10-1
connecting input signals, 10-3
exporting timing output signals using PFI
terminals, 10-3
filters, 10-4
I/O protection, 10-6
programmable power-up states, 10-6
using terminals as static digital I/Os, 10-3
using terminals as timing input
signals, 10-2
PFI terminals as static digital I/Os, 10-3
pin assignments. See pinouts
pinouts
counter default, 9-29
device, 1-3
USB-6210, A-1
USB-6211, A-4
USB-6215, A-4
USB-6218, A-7
pins, default, 9-29
position measurement, 9-15
power, +5 V, 3-2
power, +5 V input, 3-3
power, +5 V output, 3-2
power-up states, 10-6
prescaling, 9-34
programmable function interface, 10-1
programmable power-up states, 10-6
programmed I/O, 13-2
changing data transfer methods, 13-2
programming
devices in software, 2-4
programming examples (NI resources), C-1
pulse encoders, 9-17
pulse generation for ETS, 9-24
pulse train generation, 9-22
continuous, 9-22
pulse-width measurement, 9-5
buffered, 9-5
single, 9-5
Q
quadrature encoders, 9-15
R
reciprocal frequency measurement, 9-12
referenced single-ended connections
using with floating signal sources, 5-9
when to use with floating signal
sources, 5-3