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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".
Chapter 9: Making Coordinated Measurements
Starting/Stopping Multiple Emulators
267
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