Using Trigger Signals - HP 64751 User Manual

Chapter 9: Making Coordinated Measurements

Using Trigger Signals

Using Trigger Signals
The HP 64700 contains two internal lines, trig1 and trig2, over which trigger
signals can pass from the emulator or analyzer to other HP 64700s on the
Coordinated Measurement Bus (CMB) or other instruments connected to the BNC
connector.
You can configure the internal lines to make connections between the emulator,
analyzer, CMB connector, or BNC connector. Measurements that depend on these
connections are called interactive measurements or coordinated measurements.
To configure the internal trig1 and trig2 lines, you must enter the modify
configuration command and then answer "yes" to the "Modify interactive
measurement specification?" question. When you do this, the following display
appears.
This display illustrates the possible connections between the internal lines (trig1
and trig2) and the emulator, analyzer, and external devices.
Notice that the analyzer always drives trig1, and the emulator always receives trig1.
This provides for the break_on_trigger syntax of the trace command.
You can use the trig1 or trig2 line to make a connection between the analyzer and
the CMB connector or BNC connector so that, when the analyzer finds its trigger
condition, a trigger signal is driven on the HP 64700's Coordinated Measurement
Bus (CMB) or BNC connector.
You can use the trig1 or trig2 line to make a connection between the emulator break
input and the CMB connector, BNC connector, or analyzer so that program
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