Moxa Technologies UC-7420/7410 user manual Developing Your First Application, Testing Environment

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UC-7420/7410 User’s Manual

Getting Started

Uploading “Hello” to UC-7420/7410 and Running the Program

Use the following command to upload hello-releaseto the UC-7420/7410 via FTP.

1.From the PC, type:

#ftp 192.168.3.127

2.Use bin command to set the transfer mode to Binary mode, and the put command to initiate the file transfer:

ftp> bin

ftp> put hello-release

3.From the UC-7420/7410, type:

#chmod +x hello-release

#./hello-release

The word Hello will be printed on the screen.

root@Moxa:~# ./hello-release Hello

Developing Your First Application

We use the tcps2 example to illustrate how to build an application for UC-7420/7410. The procedure outlined in the following subsections will show you how to build a TCP Server program plus serial port communication that runs on the UC-7420/7410.

Testing Environment

The tcps2 example demonstrates a simple application program that delivers transparent, bi-directional data transmission between UC-7420/7410’s serial and Ethernet ports. As illustrated in the following figure, the purpose of this application is to transfer data between PC 1 and the UC-7420/7410 via an RS-232 connection. At the remote site, data can be transferred between UC-7420/7410’s Ethernet port and PC 2 over an Ethernet connection.

PC 1

PC 2

RS-232

LAN

Read serial data

Write data to PC1

tcps2.c

Serial Rx

Buffer

LAN Rx

Buffer

Send data to PC2

Receive LAN data

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Contents Third Edition, June UC-7420/7410 User’s ManualDisclaimer Copyright NoticeTrademarks Table of Contents Chapter UC Finder Appendix B Windows Tool Chain Introduction ‰ Hardware Introduction IntroductionUC-7410-LX Package ChecklistProduct Features OverviewProduct Hardware Specifications Appearance Appearance and DimensionsHardware Introduction Dimensions LED Name Color Meaning Hardware Block DiagramLED Indicators Real Time Clock Reset-type ButtonsReset Button Reset to default ButtonWall or Cabinet Placement OptionsDIN-Rail Mounting Wiring RequirementsHardware Connection Description Grounding UC-7420/7410 Connecting the PowerConnecting to the Network Pin SignalPin RS-232 RS-422 RS-485 Connecting to a Serial DeviceConnecting to the Console Port CompactFlashSoftware Architecture Software IntroductionSoftware Package Journaling Flash File System JFFS2Software Version Comparison Table Directory Change Protocol stacks and utilitiesGetting Started ‰ Configuring the Ethernet InterfaceSerial Console Powering on UC-7420/7410Connecting UC-7420/7410 to a PC 192.168.4.127 255.255.255.0 Default IP Address NetmaskTelnet Console 192.168.3.127 255.255.255.0Windows Users SSH ConsoleStatic IP addresses Configuring the Ethernet InterfaceModifying Network Settings with the Serial Console Linux UsersDynamic IP addresses IEEE802.11b Configuring the Wlan via the Pcmcia InterfaceModifying Network Settings over the Network Default IP address is 192.168.5.127, netmask#vi /etc/wlan/wlancfg-any IEEE802.11g Setting Setting ExplanationKey1Str, Key2Str, Key3Str, Key4Str-Sets strings Key1 to Key4 TurboRate-Enables or disables TurboRate Step Installing the Tool Chain LinuxTest Program-Developing Hello.c Checking the Flash Memory SpaceYou should receive the following response Compiling Hello.cUploading Hello to UC-7420/7410 and Running the Program Testing EnvironmentDeveloping Your First Application #mount -t iso9660 /dev/cdrom /mnt/cdrom Compiling tcps2.cPuTTY Uploading tcps2-release and Running the Program#jobs // use this command to check if the program is running UC-7420/7410 User’s Manual Testing Procedure SummaryUC-7420/7410 User’s Manual Managing Embedded Linux ‰ System Version Information ‰ System Image BackupUpgrading the firmware will erase all data on the Flash ROM System Image BackupSystem Version Information Upgrading the Firmware#upramdisk #cd /mnt/ramdisk Loading Factory Defaults Firmware version V1.5 and later versions Backing Up the User File SystemFirmware versions earlier than V1.5 not including Enabling and Disabling Daemons UC-7420/7410 User’s Manual Managing Embedded Linux Setting the Run-Level Setting the Time Manually Adjusting the System TimeUpdating the Time Automatically Example shell script to update the system time periodicallyNTP Client Enable cron when the system boots up Cron-daemon to Execute Scheduled CommandsChange mode of fixtime.sh Enable the cron daemon manuallyCF Mass Storage Connecting PeripheralsUSB Mass Storage ‰ Iptables ‰ NAT Managing CommunicationsDisabling the Telnet/ftp server Web Service-ApacheTelnet / FTP Enabling the Telnet/ftp serverUsr/www/cgi-bin Saving a Web Page to the CF Card Use the following commands to restart the Apache web server Iptables Local Host Packets Examples Observe and erase chain rulesDefine policy for chain rules UsageIptmac Append or delete rulesNAT Example Enabling NAT at BootupDial-up Service-PPP Example 2 Connecting to a PPP server over a hard-wired link UP Loopback Running How to check the connection#vi /etc/exports Setting up UC-7420/7410 as an NFS ServerSetting up a Machine for Incoming PPP Connections NFS Network File SystemSetting up UC-7420/7410 as an NFS Client Steps 2 MailOpen VPN Internet IFS=‘ Create link symbols to enable this script at boot time Destination Gateway Genmsk Flags Metric Use Iface Now ping Host B from Host a by typing Setup 3 Routed IP Destination Gateway Genmsk Flags Metric Use Iface Programmer’s Guide Linux Tool Chain Introduction Address Size ContentsFlash Memory Map Tools Available in the Host Environment Debugging with GDBObtaining help Cross Compiling Applications and LibrariesBuzzer Device APIRTC Real Time Clock WDT Watch Dog Timer Input Int fd File handle from swtdopen return value Output User application example Example Special NoteSwtddisableswtdfd Int mainint argc, char *argv Pidt sonpid Example to get the baud rate Example to set the baud rateExamples KeyPadBaud rate inaccuracy Special NoteMake File Example UC Finder Windows UC Finder Installing the SoftwareUC-7420/7410 User’s Manual UC Finder Broadcast Search Linux ucfinder Editor System CommandsBusybox V0.60.4 Linux normal command utility collection File managerMoxa special utilities ProcessOther Windows Tool Chain Introduction Introduction Select the Root Directory Installation ProcedureUC-7420/7410 User’s Manual Windows Tool Chain Introduction UC-7420/7410 User’s Manual Windows Tool Chain Introduction Using the Bash Shell UC-7420/7410 User’s Manual Windows Tool Chain Introduction GDB debug tool-InsightUC-7420/7410 User’s Manual Windows Tool Chain Introduction Service Information Following services are provided Moxa Internet ServicesMoxa Product † UC-7410-LX † UC-7420-LX Serial Number Problem Report FormProduct Return Procedure