ADLINK Technology USB-1901, User Manual

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Operation 47
USB-1900 Series
Total acquired data length = NumChan_counter * PSC_counter.
Figure 4-10: Gated Trigger
4.5 D/A Conversion
For complex applications, the USB-1900 Series offers software
polling to update the output, and continuous mode to generate
waveforms. This means that the D/A update rate is controlled not
only by software timing, but can also be set by a specified
precision hardware timer. The following sections discuss the
USB-1900 Series D/A architecture and control methods.
Acquisition Paused
(NumChain
_
Counter=4
,
PSC
_
Counter=2)
Trigger
AD
_
conversion
ACQ _ EN
Acquisition_in_progress
Scan
_
start
Acquired & Stored Data
(6 scans)
Operation Start