Dataman 520 Series - Manual (Page 25)

DATAMAN oscilloscope
User’s Guide
selectable value from 0 to 32767. It is important to set the proper value H to ensure
that the hardware of the oscilloscope acquires proper amount of data before trigger
event. For example, if we want to display waveform for time period of Tz before the
trigger it is necessary to set T >= Tz to ensure that all of the data will be
displayed.The DATAMAN 770 series oscilloscopes have four triggering modes
implemented:
AUTO – Data acquisition is triggered by a valid trigger event. However, when after
certain time the trigger event does not occur, measurement starts.
NORMAL – Data acquisition is triggered by a valid trigger event.
SINGLE – Data acquisition starts after activation from the control panel and it is
synchronized by the valid trigger event. Just one measuring cycle is executed.
MANUAL – One measuring cycle is executed immediately after activation from the
control panel.
2.3.3. Data acquisition
The simplified block schematics of data acquisition are shown on figure 2.3.3.1.
REG
CMP
ACC
ADC
M
SD
DATA
A/B
clk
trg
done
Fig. 2.3.3.1. – Simplified block schematics of the data acquisition
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