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Chapter 2 Function Reference — CTR_FOUT_Config
NI-DAQ FRM for PC Compatibles 2-96
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National Instruments Corporation
CTR_FOUT_Config
Format
status = CTR_FOUT_Config (deviceNumber, FOUT_port, mode, timebase, division)
Purpose
Disables or enables and sets the frequency of the 4-bit programmable frequency output.
Parameters
Input
Parameter Discussion
FOUT_port is the frequency output port to be programmed.
1: For FOUT1 on the PC-TIO-10 or FOUT on the MIO device, except the E Series
devices.
2: For FOUT2 on the PC-TIO-10.
mode selects whether to enable or disable the programmable frequency output. mode can be
0 or 1.
0: The frequency output signal is turned off to a low-logic state.
1: The frequency output signal is enabled.
If mode = 0, none of the following parameters apply.
timebase selects the timebase, or resolution, to be used by the programmable frequency
output. timebase has the following possible values:
–1: Internal 5 MHz clock used as timebase (200 ns resolution) (AT-MIO-16F-5,
AT-MIO-64F-5, AT-MIO-16X, and PC-TIO-10 only).
1: Internal 1 MHz clock used as timebase (1 µs resolution).
2: Internal 100 kHz clock used as timebase (10 µs resolution).
3: Internal 10 kHz clock used as timebase (100 µs resolution).
Name Type Description
deviceNumber i16 assigned by configuration utility
FOUT_port i16 frequency output port
mode i16 enable or disable the programmable frequency
output
timebase i16 timebase value
division i16 divide-down factor for generating the clock