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Starting/Stopping Multiple Emulators
When HP 64700 Card Cages are connected together via the Coordinated
Measurement Bus (CMB), you can start and stop up to 32 emulators at the
same time. These are called synchronous measurements.
This section describes how to:
•
Enable synchronous measurements.
•
Start synchronous measurements.
•
Disable synchronous measurements.
To enable synchronous measurements
•
Enter the specify run command.
You can enable the emulator's interaction with the CMB by using the
specify run command. When the EXECUTE signal is received, the emulator
will run at the current program counter address or the address specified in
the specify run command.
Note that when the CMB is being actively controlled by another emulator, the
step command does not work correctly. The emulator may end up running in
user code (NOT stepping). Disable CMB interaction (see "To disable
synchronous measurements" below) while stepping the processor.
Note that enabling CMB interaction does not affect the operation of analyzer
cross-triggering.
You can use the specify trace command to specify that an analyzer
measurement begin upon reception of the CMB EXECUTE signal.
The trace measurement defined by the specify trace command will be
started when the EXECUTE signal becomes active. When the trace
measurement begins, you will see the message "CMB execute; emulation
trace started".
When you enter a normal trace command, trace at execute is disabled, and
the analyzer ignores the CMB EXECUTE signal.
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