Advantech Qseven SOM-3567, Руководство пользователя

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57 SOM-3567 User Manual
Chapter 4
S
/W Introduction
&
Installation
4.3.1 Control
4.3.2 Display
GPIO
General Purpose Input/Output is a flexible parallel interface
that allows a variety of custom connections. It allows users to
monitor the level of signal input or set the output status to
switch on/off the device. Our API also provides Programma-
ble GPIO, which allows developers to dynamically set the
GPIO input or output status.
SMBus
SMBus is the System Management Bus defined by Intel Cor-
poration in 1995. It is used in personal computers and serv-
ers for low-speed system management communications. The
SMBus API allows a developer to interface a embedded sys-
tem environment and transfer serial messages using the
SMBus protocols, allowing multiple simultaneous device con-
trol.
PC
PC is a bi-directional two wire bus that was developed by
Philips for use in their televisions in the 1980s. The PC API
allows a developer to interface with an embedded system
environment and transfer serial messages using the I2C pro-
tocols, allowing multiple simultaneous device control.
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.