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5.1.3 Power Subsystem
Overview
When the AR-B6002 is at Power Mode 15, the Power Subsystem APIs can be used to get and set the
configuration of power subsystem. By invoking the Power Subsystem APIs, the users can:
1.
Get the current status of ignition (ON or OFF).
2.
Set the Power-On mode. This setting will be kept in the power subsystem and will take effect at next
system boot.
3.
From the power subsystem, get the stored setting of Power-On mode.
4.
Get or set the time of Hard Off delay in seconds or in minutes.
5.
Get or set the time of Soft Off delay in seconds or in minutes
6.
Get the battery voltage.
7.
Get the version number of the firmware of the Power Subsystem.
8.
Set the Hard Off delay and Soft Off delay to the default value.
The power subsystem connects to the main system via the COM6. The Linux's default
supported COM interfaces are COM1~COM4. The Power Subsystem APIs implicitly
communicate with power subsystem through COM6. Users must take extra steps to
configure Linux kernel in order to support COM6. Please refer to Appendix A for more
information. Users don't need extraordinary setup on Windows platform to support COM6.
In this Power Subsystem package, we provide:
1.
The APIs to access power subsystem and the source code of the APIs.
2.
The utility and source code to monitor and set up power modes, ignition status, and
power-off time.
3.
On Linux platform, the Makefile to create API libraries and utility.
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Revision: 1.0
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