User's Manual

Chapter 2 Function Reference — GPCTR_Change_Parameter
© National Instruments Corporation 2-203 NI-DAQ FRM for PC Compatibles
Output counterValue
}
GPCTR_Control (deviceNumber, gpctrNum, ND_RESET)
paramID =
ND_GATE
This signal controls the operation of the general-purpose counter in some applications. The
default values of paramValue for paramID =
ND_GATE
are shown in Table 2-24.
Note If you have configured an analog hardware trigger using the
Config_HW_Analog_Trigger function, the resulting analog trigger circuitry
output signal is available as
ND_PFI_0.
Table 2-24.
Legal Values for
paramValue
when
paramID
=
ND_GATE
E Series and 445X Devices 6602 Devices 455X Devices
ND_PFI_0 through
ND_PFI_9—the 10 I/O
connector pins.*
ND_RTSI_0 through
ND_RTSI_6—the seven
RTSI lines.
ND_IN_START_TRIGGER
and
ND_IN_STOP_TRIGGER—
the input section triggers.
ND_OTHER_GPCTR_OUTPUT
—the output of the other
general-purpose counter
(See Table 2-22 for
definition of other counter).
ND_PFI_38, ND_PFI_34,
ND_PFI_30, ND_PFI_26,
ND_PFI_22, ND_PFI_18,
ND_PFI_14, and
ND_PFI_10.
ND_RTSI_0 through
ND_RTSI_6—the seven
RTSI lines.
ND_OTHER_GPCTR_OUTPUT
(See Table 2-22 for
definition of other counter).
ND_OTHER_GPCTR_SOURCE
—the source of the other
general-purpose counter
(See Table 2-22 for
definition of other counter).
ND_PFI_30, ND_PFI_26,
ND_PFI_22, ND_PFI_18,
ND_PFI_14, and
ND_PFI_10.
ND_RTSI_0 through
ND_RTSI_6—the seven
RTSI lines.
ND_OTHER_GPCTR_OUTPUT
(See Table 2-22 for
definition of other counter).
ND_OTHER_GPCTR_SOURCE
—the source of the other
general-purpose counter
(See Table 2-22 for
definition of other counter)
* ND_PFI_2 and ND_PFI_5 not valid for 445X devices.