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Chapter 2 Using Your 653X
© National Instruments Corporation 2-5 653X User Manual
Figure 2-1.
Programming Unstrobed I/O in NI-DAQ
s
Figure 2-2.
Programming Unstrobed I/O in LabVIEW/LabVIEW RT
Programming the Control/Timing Lines as Extra
Unstrobed Data Lines
If you want to use the control/timing lines as extra unstrobed data lines:
• NI-DAQ C Interface—If both sets of control/timing lines are available,
call the
DIG_In_Prt
or
DIG_Out_Prt
function and set Port Number
to 4. If both sets of control/timing lines are not available, use the
DIG_In_Line
and
DIG_Out_Line
functions to individually
read/write to the appropriate control/timing lines.
NoYe s
Only One
Line?
DIG_Line_ConfigDIG_Prt_Config
DIG_Out_prtDIG_In_prt
Read?
Done?
NoYe s
DIG_Out_LineDIG_In_Line
Done?
Read?
No
No
Ye s
No
Read from
Digital Line VI
Single Line?
Ye s N o
Write to
Digital Port VI
Read from
Digital Port VI
Write to
Digital Line VI