User manual

Chapter 3 Software Overview
NI-DAQ User Manual for PC Compatibles 3-4 ni.com
NI-DAQ automatically loads the
calibration constants stored in EEPROM
user area 5 the first time you call a function
pertaining to the device.
Calibrate_TIO
Use the function to calibrate the crystal
oscillator on your timing I/O 660X device.
Calibrate_DSA
Use this function to calibrate your
DSA device.
Calibrate_E_Series
Use this function to calibrate your E Series
device or 671X device and to select a set
of calibration constants for NI-DAQ to use.
Configure_HW_Analog_Trigger
Configures the hardware analog trigger
available on your E Series device.
LPM16_Calibrate
Calibrates the LPM device converter.
The function calculates the correct offset
voltage for the voltage comparator, adjusts
positive linearity and full-scale errors to
less than ±0.5 LSB each, and adjusts zero
error to less than ±1 LSB.
MIO_Config
Turns dithering on and off. For the
MIO-64, this function also lets you specify
whether to use AMUX-64T channels or
onboard channels.
SCXI_Calibrate
Performs a self-calibration (or internal
calibration) for certain SCXI modules.
Select_Signal
Selects the source and polarity of certain
signals used by the E Series and DSA
devices. You typically need to use this
function to externally control timing, to
use the RTSI bus, or to configure one of
the I/O connector PFI pins.