National Instruments NI USB-621x - Manual (Page 50)

Chapter 4 Analog Input
NI USB-621x User Manual 4-24 ni.com
Getting Started with AI Applications in Software
You can use the M Series device in the following analog input applications.
• Single-point analog input
• Finite analog input
• Continuous analog input
You can perform these applications through DMA, interrupt, or
programmed I/O data transfer mechanisms. Some of the applications also
use start, reference, and pause triggers.
Note For more information about programming analog input applications and triggers in
software, refer to the NI-DAQmx Help or the LabVIEW 8.x Help.