Moxa DA-662A-16-LX [6/63] Overview

Moxa DA-662A-I-8-LX [6/63] Overview
DA-662A Series Software Introduction
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Overview
The DA-662A series embedded computers are ideal for embedded applications. The computers feature a RISC
CPU, RAM memory, and communication ports for connecting to RS-232/422/485 serial devices. The DA-662A
has 4 Ethernet ports.
The DA-662A series computers use a Moxa MACRO 500 Mhz RISC CPU. Unlike the X86 CPU, which uses a CISC
design, the RISC architecture and modern semiconductor technology provide the DA-662A series with a
powerful computing engine and communication functions, but without generating a lot of heat. The built-in 32
MB NOR Flash ROM and 128 MB SDRAM give you enough memory to install your application software directly
on the computer. In addition, multiple LAN ports are built into the RISC CPU. The combination of advanced
networking capability and control over serial devices makes the DA-662A series an ideal communication
platform for data acquisition and industrial control applications.
The DA-662A seriespre-installed Linux operating system (OS) provides an open software operating system for
your software program development. Software written for desktop PCs is easily ported to the computer with a
GNU cross compiler, without the need to modify the source code. The operating system, device drivers (e.g.,
Keypad, LCM, and Buzzer control) and your own applications can all be stored in the NOR Flash memory.
The DA-662A Linux series has five models. Choose 8 or 16 serial ports, additional isolated serial port protection,
or dual power inputs, all with the same hardware and software features suitable for different industrial
applications.
Software Architecture
The Linux operating system that is pre-installed in the DA-662A series follows the standard Linux architecture,
making it easy to use programs that follow the POSIX standard. Program porting is done with the GNU Tool
Chain provided by Moxa. In addition to Standard POSIX APIs, device drivers for the LCM, buzzer and keypad
controls, and UART are also included in the Linux OS.
The DA-662A series‘ built-in Flash ROM is partitioned into Boot Loader, Linux Kernel, Root File System,
and User Root File System partitions.
In order to prevent user applications from crashing the Root File System, the DA-662A series uses a specially
designed Root File System with Protected Configuration for emergency use. This Root File System
comes with serial and Ethernet communication capability for users to load the Factory Default Image file.
The user directory saves the user‘s settings and applications.

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