National Instruments 653X - Manual (Page 42)

Chapter 2 Using Your 653X
653X User Manual 2-24 ni.com
If you are using external start and/or stop triggers, connect to the
appropriate pins—start trigger (ACK/STARTTRIG) and/or stop trigger
(STOPTRIG).
Creating a Program
Using the following flowcharts as a guide, create a program to perform
pattern I/O. Figures 2-13 and 2-14 display flowcharts for C programming
using NI-DAQ, while Figure 2-14 shows a LabVIEW programming
flowchart.
The boxes represent function names for the appropriate software, and the
diamonds represent decision points.
Figure 2-12. Programming Pattern I/O (Single Buffer) in NI-DAQ
DIG_Block_Check
DIG_Block_Clear
Yes
Acquisition
Complete? No
DIG_Grp_Config
DIG_Trigger_Config
DIG_Block_In
DIG_Block_Out
DIG_Block_PG_Config
Trigger?
Yes
No
Yes
No
Read?