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Chapter 2 Using Your 653X
© National Instruments Corporation 2-13 653X User Manual
Figure 2-4.
Programming Buffered Handshaking I/O in NI-DAQ
Read?
DIG_Grp_Mode
DIG_Grp_Config
Read?
Continuous?
No
DIG_DB_Config
Ye s
DIG_Block_In
DIG_Block_Out
DIG_Block_In
DIG_Block_Out
Ye s
No
Ye s
No
Ye s
DIG_DB_HalfReady
Is the
next half buffer
ready?
DIG_DB_Transfer
Acquisition
Complete?
Ye s
No
No
DIG_Block_Clear
Ye s
DIG_Block_Check
No
Acquisition
Complete?