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4.1
Value-Added Software Services
Software API are interface that define the ways in which an application program may
request services from libraries and/or operating systems. They provide not only the
underlying drivers required but also a rich set of user-friendly, intelligent and inte-
grated interfaces, which speed development, enhance security and offer add-on
value for Advantech platforms. API plays the role of catalyst between developer and
solution, and make Advantech embedded platforms easier and simpler to adopt and
operate with customer applications. This API and utility is only for XP (32/64 bit) and
Win7 (32/64bit), so if users needs Linux version API and utility, then contact an
Advantech representative for support.
4.1.1
Software API
4.1.1.1
Control
GPIO
SMBus
4.1.1.2
Monitor
Watchdog
Hardware Monitor
PCA-6763 User Manual
General Purpose Input/Output is a flexible parallel interface
that allows a variety of custom connections. 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 is the System Management Bus defined by Intel®
Corporation in 1995. It is used in personal computers and
servers for low-speed system management communications.
Today, SMBus is used in all types of embedded systems.
The SMBus API allows a developer to interface a Windows
XP or CE PC to a downstream embedded system environ-
ment and transfer serial messages using the SMBus proto-
cols, allowing multiple simultaneous device control.
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.
The Hardware Monitor (HWM) API is a system health super-
vision API that inspects certain condition indexes, such as
fan speed, temperature and voltage.
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