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Chapter 10: Making Coordinated Measurements
Using Trigger Signals
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. This can also be done for the external analyzer
when it is configured as an independent state or timing analyzer.
You can use the trig1 or trig2 line to make a connection between the emulator break
input and the CMB connector, BNC connector, analyzer, (or external analyzer
when configured as an independent state or timing analyzer) so that program
execution can break when a trigger signal is received from the CMB, BNC, or
analyzer.
You can use the trig2 line to make a connection between the analyzer and the CMB
connector or BNC connector so that the analyzer can be armed (that is, enabled)
when a trigger signal is received from the CMB or BNC connector. This can also
be done for the external analyzer when it is configured as an independent state or
timing analyzer.
You can use the trig1 and trig2 lines to make several type of connections at the
same time. For example, when the analyzer finds its trigger condition, a signal is
driven on the trig1 line. This signal may be used to stop user program execution,
but the trigger signal may also be driven on the CMB and BNC connectors.
Also, it's possible for signals to be driven and received on the CMB or BNC
connectors. So, for example, while the analyzer's trigger signal can be driven on
the CMB and BNC connectors, signals can also be received from the CMB and
BNC connectors and used to stop user program execution. In this case, the
emulator will break into the monitor on either the analyzer trigger or on the
reception of a trigger signal from the CMB or BNC.
You can disable connections made by the internal trig1 and trig2 lines by
answering "neither" or "no" to the appropriate interactive measurement
configuration question.
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