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MPF Soft Power Down Sequence

The soft power down sequence is a process you can take advantage of to shut down your game process cleanly, or even command the entire computer to shut down. The FAST Neuron processor supports a native integration of this feature with its soft power button, but other controllers can take advantage of the system as well.

Steps

Post the event: request_soft_shutdown Boolean event is posted to allow blocking: machine_request_shutdown Either handlers fail it out, and machine_abort_shutdown is posted Or handlers do not block, so machine_will_shutdown is posted, and then the subsystems are each gracefully exiting and the event loop is completed. If a custom script is defined with machine:soft_shutdown_exit_command, then it will be executed asynchronously.

Neuron additional steps: The Neuron can also use the request_soft_shutdown event, but it has a native hook to this already. If in soft power mode, the watchdog WD: command will automatically detect when the soft power button is pressed, it will then report the synthetic switch event fast_soft_power_switch_active it will then report the synthetic switch event fast_soft_power_switch_inactive.

If the time between these occurrences is > fast:net:soft_power_hold_time then it will issue request_soft_shutdown, starting the standard loop.

For non-FAST Neuron systems, or FAST Neurons using standard power (not soft power), the controller will not be automatically shut down at the end.

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