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EM-1240-LX User’s Manual Introduction
Overview
The EM-1240-LX Series of mini RISC-based communication platforms are ideal for your
embedded applications. The EM-1240-LX comes with 4 RS-232/422/485 serial ports and dual
10/100 Mbps Ethernet LAN ports to provide users with a versatile communication platform.
The EM-1240-LX uses the Moxa ART ARM9 RISC CPU. Unlike the X86 CPU, which uses a
CISC design, the ARM9’s RISC design architecture and modern semiconductor technology
provide the EM-1240-LX with a powerful computing engine and communication functions, but
without generating too much heat. The built-in 8 MB NOR Flash ROM and 16 MB SDRAM give
you enough storage capacity and an additional SD socket provides you with flexible storage
expansion to run applications. The dual LAN ports built into the ARM9 make the EM-1240-LX an
ideal communication platform for simple data acquisition and protocol conversion applications,
and the two RS-232/422/485 serial ports allow you to connect a variety of serial devices.
The pre-installed µClinux operating system provides an open software operating system for
software program development. Software written for desktop PCs is easily ported to the
EM-1240-LX with a GNU cross compiler, so that you will not need to spend time modifying
existing software code. The operating system, device drivers, and your own software can all be
stored in the EM-1240-LX’s Flash memory.
Package Checklist
EM-1240-LX
Mini RISC-based ready-to-run embedded computer with 4 serial ports, dual Ethernet, SD, μClinux
OS
EM-1240-LX Series products are shipped with the following items:
y 1 EM-1240-LX embedded module
y 1 EM-1240-LX Development Kit (optional)
y Quick Installation Guide
y Document & Software CD
y Cross-over Ethernet cable
y CBL-RJ45M9-150: 150 cm, 8-pin RJ45 to male DB9 serial port cable
y CBL-RJ45F9-150: 150 cm, 8-pin RJ45 to female DB9 console port cable
y Power cord
y Product Warranty Statement
NOTE: Notify your sales representative if any of the above items are missing or damaged.
Product Features
EM-1240-LX Series products have the following features:
y MOXA ART ARM9 32-bit 192 MHz communication processor
y On-board 16 MB RAM, 8 MB Flash ROM
y 4 software-selectable RS-232/422/485 serial ports
y 2 10/100 Mbps Ethernet ports
y RS-232 console, with full signal and PPP support
y Ready-to-run μCLinux Kernel 2.6.9 communication platform
y SD signal supported
1-2
Содержание
- Em 1240 lx user s manual 1
- Fifth edition february 2009 1
- Www moxa com product 1
- Copyright notice 2
- Disclaimer 2
- Em 1240 lx user s manual 2
- Technical support contact information www moxa com support 2
- Trademarks 2
- Table of contents 3
- Introduction 5
- Overview 6
- Package checklist 6
- Product features 6
- Hardware specifications 7
- Product specifications 7
- Software specifications 8
- Appearance 9
- Em 1240 embedded module development kit 9
- Em 1240 lx user s manual introduction 9
- Hardware block diagram 9
- Em 1240 development kit 10
- Em 1240 embedded module 10
- Em 1240 lx user s manual introduction 10
- Dimensions 11
- Installing the em 1240 lx 11
- Led indicators 12
- Wiring requirements 12
- Connecting data transmission cables 13
- Connecting the power 13
- Connecting to the network 13
- Grounding the em 1240 lx 13
- Connecting to a serial device 14
- Serial console port 14
- Additional functions 15
- Internal sd socket 15
- Reset button 15
- Real time clock 16
- Getting started 17
- Connecting the em 1240 lx to a pc 18
- Console port 18
- Powering on the em 1240 lx 18
- Telnet 19
- Configuring the ethernet interface 20
- Developing your applications 22
- Installing a secure digital sd memory card 22
- Compiling hello c 23
- Installing the em 1240 lx tool chain 23
- Uploading hello to the em 1240 lx 24
- Running hello on the em 1240 lx 25
- Make file example code 26
- Software package 27
- Em 1240 lx software architecture 28
- Journaling flash file system jffs2 29
- Em 1240 lx software package 30
- Configuring the em 1240 lx 32
- Enabling and disabling daemons 33
- How to enable disable etc inittab www server 33
- How to enable disable telnet ftp server 33
- How to enable network time protocol 33
- How to update the system time periodically with network time protocol 33
- Adding a web page 34
- Iptables 34
- Observe and erase chain rules 36
- Append or delete rules 37
- Define policy for chain rules 37
- Enabling nat at bootup 38
- Nat example 38
- Configuring dial in dial out service 39
- Configuring pppoe 39
- Connect using a modem 39
- Dial in service 39
- Dial out service 39
- Direct cable connection 39
- Dynamic driver module load unload 40
- How to mount a remote nfs server 40
- Upgrading the kernel 41
- Upgrading the root file system user directory 42
- Autostarting user applications on bootup 43
- Checking the kernel and root file system versions 43
- Loading factory defaults 43
- Em 1240 lx device api 44
- Buzzer 45
- Rtc real time clock 45
- Uart interface 45
- Api list 46
- Moxa gpio api 46
- How to use the gpio 47
- Gpio library source code 48
- Limits 48
- A system commands 52
- Editor 52
- File manager 52
- System commands 52
- Μclinux normal command utility collection 52
- Moxa special utilities 53
- Network 53
- Process 53
- B snmp agent with mib ii rs 232 like group 54
- Snmp agent with mib ii rs 232 like group 54
- C em 1240 lx faq 57
- Em 1240 lx faq 57
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