User manual

53 ARK-6320 User Manual
Chapter 6 Software Introduction & Service
6.2.1.2 Display
6.2.1.3 Monitor
6.2.1.4 Power Saving
Brightness Control
The Brightness Control API allows a developer to access
embedded devices and easily control brightness.
Backlight
The Backlight API allows a developer to control the backlight
(screen) on/off in embedded devices.
Watchdog
A watchdog timer (WDT) is a device that performs a specific
operation after a certain period of time if something goes
wrong and the system does not recover on its own. A watch-
dog timer can be programmed to perform a warm boot
(restarting the system) after a certain number of seconds.
Hardware Monitor
The Hardware Monitor (HWM) API is a system health super-
vision API that inspects certain condition indexes, such as
fan speed, temperature and voltage.
CPU Speed
Makes use of Intel SpeedStep technology to save power con-
sumption. The system will automatically adjust the CPU
speed depending on the system loading.
System Throttling
Refers to a series of methods for reducing power consump-
tion in computers by lowering the clock frequency. This API
allows the user to adjust the clock from 87.5% to 12.5%.