User manual

Chapter 3 Software Overview
NI-DAQ User Manual for PC Compatibles 3-2 ni.com
• RTSI bus trigger
• SCXI
• Transducer conversion
Initialization and General-Configuration Functions
Use these general functions for initializing and configuring your hardware
and software.
Refer to the NI-DAQ Function Reference Online Help file to determine
which functions your device supports.
Align_DMA_Buffer
Aligns the data in a DMA buffer to avoid
crossing a physical page boundary. This
function is for use with DMA waveform
generation and digital I/O pattern
generation.
Get_DAQ_Device_Info
Retrieves parameters pertaining to the
device operation.
Get_NI_DAQ_Version
Returns the version number of the NI-DAQ
library.
Init_DA_Brds
Initializes the hardware and software states
of a National Instruments DAQ device to
its default state and then returns a numeric
device code that corresponds to the type of
device initialized. Any operation that the
device is performing is halted. NI-DAQ
automatically calls this function; your
application does not have to call it
explicitly. This function is useful for
reinitializing the device hardware, for
reinitializing the NI-DAQ software, and
for determining which device has been
assigned to a particular slot number.