1 Theory of Operation: M31/M33XX Digitizers
1. 1. 2 Analog Trigger
The analog trigger block processes the input data and generates a digital trigger that can be used
by any Data Acquisition Block (
Data Acquisition (DAQs) (page 8)
).
Figure 3: Analog trigger processor in the M31/M33XXA Digitizers functional block diagram
The user can select the threshold and the trigger mode. The available trigger modes are shown in
Table 5.
Analog Trigger Mode
Programming Definitions
Option Description
Name
Value
Rising
Edge
Trigger is generated when the input signal is rising and crosses
the threshold
AIN_RISING_EDGE
1
Falling
Edge
Trigger is generated when the input signal is falling and crosses
the threshold
AIN_FALLING_EDGE
2
Both
Edges
Trigger is generated when the input signal crosses the
threshold, no matter if it is rising or falling
AIN_BOTH_EDGES
3
Table 5: Options for the analog trigger (parameter analogTriggerMode in function
channelTriggerConfig (page 47)
Programming Information
Function Name
Comments
Details
channelTriggerConfig
It configures the analog trigger for each
channel
channelTriggerConfig (page 47)
6
Keysight M31XXA/M33XXA Digitizer User's Guide
Содержание M31 A Series
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