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Debugger Commands
3
NAP - NAP MPU
Note This command is for multi-processor boards only.
Command Input
NAP MPU#
Options
None
Description
The NAP command puts an idling CPU into a tight cached loop from
which it will never exit. The napping CPU will not intrude onto the bus.
This command is useful during performance analysis when it is desirable
to allow one single CPU access to the bus without having to share bus
bandwidth with another CPU.
To cause a processor to leave the napping state, a board reset must be
issued.
This command will issue an error message if the system does not contain
two processors.
Example: To ‘nap’ processor 1, do:
PPC1-Bug>NAP 1<Return>
PPC1-Bug>
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