Moxa Technologies EM-1240-LX user manual Introduction

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Introduction

The Moxa EM-1240-LX Series of Mini RISC-based Ready-to-Run Embedded Computer features dual 10/100 Mbps Ethernet ports and four RS-232/422/485 serial ports in a built-in µClinux ARM9 module. In addition, EM-1240-LX provides SD memory card for storage expansion, offers high performance communication and unlimited storage in a super compact, palm-size module. EM-1240-LX is an ideal solution for embedded applications that use a lot of memory and must be housed in a small physical space without sacrificing performance. This chapter covers the following topics:

Overview

Package Checklist

Product Features

Product Specifications

¾Hardware Specifications

¾Software Specifications

Hardware Block Diagram

Appearance

Dimensions

Installing the EM-1240-LX

LED Indicators

Wiring Requirements

¾Connecting the Power

¾Grounding EM-1240-LX

Connecting Data Transmission Cables

¾Connecting to the Network

¾Connecting to a Serial Device

¾Serial Console Port

Internal SD Socket

Additional Functions

¾Reset Button

¾Real-time Clock

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Contents First Edition, November EM-1240-LX User’s ManualCopyright Notice Table of Contents Chapter EM-1240-LX Device API Introduction Product Features Package ChecklistOverview EM-1240-LXHardware Specifications Product SpecificationsSoftware Specifications EM-1240 Development Kit Embedded Module Hardware Block Diagram AppearanceEM-1240 Embedded Module EM-1240 Development Kit Dimensions Wiring Requirements Installing the EM-1240-LXLED Indicators Grounding the EM-1240-LX Connecting Data Transmission CablesConnecting the Power Connecting to a Serial Device Connecting to the NetworkInternal SD Socket Reset ButtonAdditional Functions Serial Console PortReal-time Clock Getting Started Console Port Powering on the EM-1240-LXConnecting the EM-1240-LX to a PC Telnet Default IP Address Default Netmask192.168.3.127 255.255.255.0 192.168.4.127 255.255.255.0Configuring the Ethernet Interface Dhcpcd -p -a eth0 & dhcpcd -p -a eth1 Ifconfig eth0Installing a Secure Digital SD Memory Card Developing Your Applications Installing the EM-1240-LX Tool ChainStep #mount -t iso9660 /dev/cdrom /mnt/cdromEM-1240-LX User’s Manual PATH=/usr/local/arm-elf/bin$PATH Compiling Hello.c#make Uploading Hello to the EM-1240-LX# chmod 755 hello #./hello Running Hello on the EM-1240-LXCflags = Make File Example CodeSoftware Package EM-1240-LX Software Architecture Additional information about JFFS2 is available at Flash Context Flash Address Size Access controlJournaling Flash File System JFFS2 Bin Dev EM-1240-LX Software PackagePtyp0 Ppp Pio Rtc Ram1 Ram0 Null Kmem Mem Cua0 Console Tty ‰ Iptables ‰ NAT Configuring the EM-1240-LXEnabling and Disabling Daemons Example default enableAdding a Web Default Home Page addressLocal Host Packets Examples Define policy rules, and Append or delete rulesUsage Define policy for chain rules NAT Example Enabling NAT at BootupConfiguring PPPoE Configuring Dial-in/Dial-out ServiceDial-out Service Dial-in ServiceDynamic Driver Module Load/Unload How to Mount a Remote NFS ServerUpgrading the Kernel Ramdiskupkernel em1240-1.x.bin /ramdiskrebootUpramdisk Cd ramdiskUpramdisk Cd ramdisk Upgrading the Root File System & User DirectoryRamdiskbackupfs /ramdisk/usrdisk-backup User Directory Backup-EM-1240-LX to PCMirroring the Application Program and Configuration Loading Factory DefaultsAutostarting User Applications on Bootup Checking the Kernel and Root File System VersionsCat /etc/version FsversionEM-1240-LX Device API Uart Interface RTC Real-time ClockBuzzer UC Finder Windows UC Finder EM-1240-LX User’s Manual UC Finder EM-1240-LX User’s Manual UC Finder Linux UC Finder Busybox µClinux normal command utility collection System CommandsFile manager EditorProcess NetworkOther Moxa Special UtilitiesSnmp Agent with MIB II & RS-232 Like Group Ip MIB Tcp MIB Udp MIB Snmp Agent with MIB II & RS-232 Like GroupRFC1317 RS-232 like group supported variables Rs232 MIB Snmp MIBEM-1240-LX FAQ Service Information Following services are provided Moxa Internet ServicesMoxa Product † EM-1240-LX Serial Number Problem Report FormProduct Return Procedure