User`s manual

V460 Series WinCE User’s Manual Introduction
1-8
y Audio Codecs and Renderers
G.711 Audio Codec
GSM 6.10 Audio Codec
IMA ADPCM Audio Codec
MP3 Codec
MPEG-I Layer 1 and 2 Audio Codec
MS ADPCM Audio Codec
Wave/AIFF/au/snd File Parser
Waveform Audio Renderer
WMA Codec
WMA Voice Codec
WMAPro over s/PDIF Packetizer
y Video Codecs and Renderers
DirectShow Video Codec
MPEG-I Video Codec
MS RLE Video Codec
Overlay Mixer
Video/Image Compression Manager
EMA/MEPG-4 Video Codec
Learning Firmware Build Versions
There are two ways to determine the firmware version of the V460 embedded computer. This
information is important for identifying which features are supported.
y Examine the welcome message after you logon the computer.
y Log on to the web-based management system (described in a later chapter) to view system
information.
Memory and File Systems
The 256 MB of SDRAM is divided into the main memory, which uses about 196 MB of space and
includes the operating system and user applications, and the kernel image, which occupies the rest
of the space.
The V460’s internal file system controls access to CF flash and also provides file storage in the
object store. The file system provides persistent storage for applications and their related data even
when the main power supply is lost. The file system integrates the read-only files that are stored in
Flash ROM, with the read/write files of both applications and users.
The system provides a function help to speed up program operating and extend Flash memory life
developed by Moxa, the RAMDisk. It assigns 1 MB of RAM-based storage by default under the
RAMDisk directory. Although data saved in RAM will be deleted when the system shuts down,
RAM storage has the advantages of faster read/write access and no life cycle. For applications that
require transmitting important data immediately and directly to a host, you can store the necessary
log data in RAM. After the host receives the data, the data does not need to be retained and can be
deleted.