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EM-1240-LX User’s Manual Configuring the EM-1240-LX
<ETHERNET_INTERFACE>: Ethernet card connected to ADSL modem, for example, eth0
<USER_NAME>: User account, for example, moxa@adsl.net
<USER_PASSWORD>: Password for user account
To check if PPPOE is successfully connected, use the command:
y
/>ifconfig ppp0
How to Mount a Remote NFS Server
Currently, the EM-1240-LX only supports NFS (Network File System) clients. Users can open
NFS service on a Linux PC to enable the EM-1240-LX to push data to it. The EM-1240-LX can
use NFS to mount a remote disk as a local disk for data or log purposes.
1. First, the NFS server must open an export directory and allow access to the IP address. Edit
the file “/etc/exports” on your Linux PC, and then run the NFS daemon. The following
example gives one possibility (refer to the NFS-HOWTO document at
http://nfs.sourceforge.net/nfs-howto/server.html
):
/home/usr 192.168.3.1 (rw,no_root_squash,no_all_squash)
2.
The EM-1240-LX must run the “portmap” utility. This program is enabled by default in the
“/etc/rc” file. Use the following command to mount the remote NFS server:
/>mount –t nfs <remote-ip>:<remote-export-directory> <local-directory>
Dynamic Driver Module Load/Unload
Besides supporting traditional static drivers, the EM-1240-LX also supports the dynamic driver
module load / unload mechanism. It allows users to load a special driver into the kernel to enable
hardware features for specific applications. To load / unload a dynamic driver module, use the
following commands.
Load module:
/>insmod <module-directory>/<module file name>
For example, to load the UART driver, type the following command:
/>insmod /lib/modules/2.6.9-MoXaRt/kernel/drivers/char/mxser.ko
Show module list:
/>lsmod
Unload module:
/>rmmod <module-name listed by lsmod command>
For example, to unload the UART driver, type the following command:
/>rmmod mxser
For the EM-1240-LX, the factory default is to load the UART driver mxser.ko. An additional
driver module for controlling the SD/MMC memory card is loaded for the EM-1240-LX. The
location and file name for these driver modules is given below.
UART:
/lib/modules/2.6.9-MoXaRt/kernel/drivers/char/mxser.ko
SD/MMC:
/lib/modules/2.6.9-MoXaRt/kernel/drivers/mmc/mmc_core.ko
/lib/modules/2.6.9-MoXaRt/kernel/drivers/mmc/mmc_block.ko
/lib/modules/2.6.9-MoXaRt/kernel/drivers/mmc/moxasd.ko
4-9
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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