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UC-8100-LX Software Manual 

Programmer's Guide 

 

6-3 

The host tool chain that comes with UC-8100-LX series contains a suite of cross compilers and other tools, as 
well as the libraries and headers that are necessary to compile applications for UC-8100 series. The host 
environment must be running Linux to install the UC-8100 series GNU Tool Chain. We have confirmed that the 
following Linux distributions can be used to install the tool chain: 

Redhat 7.3/8.0/9.0, Fefora core 1~20, Debian 4/5/6,7    32/64 bits platform. 

The Tool Chain will need about 300 MB of hard disk space on your PC. To install, download the tool-chain file 
from Moxa official website. 

After you untar the package, run the install script and follow its instruction. 

user@Linux:/home#sh arm-linux-gnueabihf_4.7_Build_130415.sh 

 
Welcome to MOXA ARM Linux platform toolchain installer. 
This toolchain built with arm-linux-gnueabihf compiler v4.7.3 and glibc v2.15. 
Any problem please contact [email protected] 
 
Press the number: 
1.Install Linux cross compiler tool. 
2.Uninstall Linux cross compiler tool. 
3.Exit or CTRL+C 
1 
usr/local/arm-linux-gnueabihf-4.7-20130415/ 
usr/local/arm-linux-gnueabihf-4.7-20130415/bin/ 
usr/local/arm-linux-gnueabihf-4.7-20130415/bin/arm-linux-gnueabihf-gcc-ranlib 
usr/local/arm-linux-gnueabihf-4.7-20130415/bin/arm-linux-gnueabihf-ld 
usr/local/arm-linux-gnueabihf-4.7-20130415/bin/arm-linux-gnueabihf-objcopy 
usr/local/arm-linux-gnueabihf-4.7-20130415/bin/arm-linux-gnueabihf-ld.gold 
 
... 
... 
 
usr/local/arm-linux-gnueabihf-4.7-20130415/lib/gcc/arm-linux-gnueabihf/4.7.3/incl
ude/stdbool.h 
usr/local/arm-linux-gnueabihf-4.7-20130415/lib/gcc/arm-linux-gnueabihf/4.7.3/incl
ude/mf-runtime.h 
usr/local/arm-linux-gnueabihf-4.7-20130415/lib/gcc/arm-linux-gnueabihf/4.7.3/incl
ude/mmintrin.h 
usr/local/arm-linux-gnueabihf-4.7-20130415/lib/gcc/arm-linux-gnueabihf/4.7.3/incl
ude/stddef.h 
usr/local/arm-linux-gnueabihf-4.7-20130415/20130415-gcc-linaro-arm-linux-gnueabih
f 
---------------------------------------------- 
arm-linux-gnueabihf install complete 
Please export these environment variables before using toolchain: 
export PATH=$PATH:/usr/local/arm-linux-gnueabihf-4.7-20130415/bin 
 

 

Wait for a few minutes while the Tool Chain is installed automatically on your Linux PC. Once the host 
environment has been installed, add the directory 

/usr/local/arm-linux-gnueabihf-4.7-20130415//bin 

to your path and the directory 

/usr/local/arm-linux-gnueabihf-4.7-20130415//man 

to your manual path. You can do this 

temporarily for the current login session by issuing the following commands: 

#export PATH=“/usr/local/arm-linux-gnueabihf-4.7-20130415//bin:$PATH” 

Summary of Contents for UC-8100-LX

Page 1: ...UC 8100 LX Software Manual Second Edition March 2015 www moxa com product 2015 Moxa Inc All rights reserved...

Page 2: ...this manual or to the products and or the programs described in this manual at any time Information provided in this manual is intended to be accurate and reliable However Moxa assumes no responsibil...

Page 3: ...in a Linux Environment 3 7 Booting Up the UC 8100 LX for the first time 3 8 File system resizing 3 8 Booting from a MicroSD Card UC 8112 Model Only 3 8 The Push Button and the LED indicators 3 8 Diag...

Page 4: ...thout Upgrading 5 19 Upgrade Specific Packages 5 19 Install Specific Package Version 5 19 Remove Packages Without Configuration 5 20 Completely Remove Packages 5 20 Clean Up Disk Space 5 20 Download O...

Page 5: ...SD Card with Larger Capacity B 2 Tweak GNU Linux to Write to RAM Instead of the SD card B 3 Set the SD Card to Read only Mode B 3 C Copying Images on an SD MicroSD Card C 1 Using Win32 Disk Imager C...

Page 6: ...8131 LX RISC based platform with 300 MHz CPU 2 Ethernet 1 Serial port 1 GB SD USB Port and Debian ARM 7 UC 8132 LX RISC based platform with 300 MHz CPU Mini PCIe socket for cellular 2 Ethernet 2 seri...

Page 7: ...nsole 16BUser Account Management 62BSwitching to the Root Account 17BCreating and Deleting User Accounts 18BDisabling the Default User Account 19BNetwork Settings 63BConfiguring Ethernet Interfaces 64...

Page 8: ...UC 8100 LX Software Getting Started 2 2...

Page 9: ...following links for more information on EXT4 https wiki debian org Ext4 https ext4 wiki kernel org index php Ext4_Howto 14BSoftware Packages Please refer to Apendix A to for default installed softwar...

Page 10: ...00 LX NOT to be done on the UC 8100 LX For Linux users you may follow these steps to connect to UC 8100 LX Series from your personal computer 1 Install minicom from the package repository of your oper...

Page 11: ...100 LX For Windows users follow these steps 1 Download PuTTY http www chiark greenend org uk sgtatham putty download html to set up serial connection withr the UC 8100 LX in Windows environment The fo...

Page 12: ...ecdsa_key ssh_host_rsa_key ssh_host_dsa_key pub ssh_host_ecdsa_key pub ssh_host_rsa_key pub sudo ssh keygen t rsa f etc ssh ssh_host_rsa_key sudo ssh keygen t dsa f etc ssh ssh_host_dsa_key sudo ssh k...

Page 13: ...Be sure to reference the man page of these commands to set relevant previledge of the account Following example shows to create a test1 user in sudo group whose default login shell is bash and has hom...

Page 14: ...n type Moxa cd etc network to change directories moxa Moxa cd etc network moxa Moxa etc network Type Moxa sudo vi interfaces to edit the network configuration file with vi editor You can configure Eth...

Page 15: ...y use the command to connect First edit the APN name in etc qmi network conf moxa Moxa echo APN internet sudo tee etc qmi network conf And use the following command moxa Moxa sudo cell_mgmt start Plea...

Page 16: ...e time is GMT and thus stored time values are correct world wide A simple change of the TZ variable prints local time correctly anywhere In the second case the reference time is Eastern Standard Time...

Page 17: ...and write over the original local time file 21BDetermining Available Drive Space To know the available drive space remaining use df command with the h tag The system will return the amount of drive s...

Page 18: ...ou to keep your system up to date with the newest UC 8100 LX packages moxa Moxa cat etc apt sources list deb http debian moxa com debian wheezy main deb http ftp us debian org debian wheezy main contr...

Page 19: ...down a running Debian GNU Linux system you must not reboot with the reset switch on the front or back of your computer or just turn off the computer Debian GNU Linux should be shut down in a controll...

Page 20: ...le The following topics are covered in this chapter Serial Ports 69BDisable the USB Port 26BUSB Port 69BDisable the USB Port 70BUSB Automount 27BSD and MicroSD Slot 71BEnabling Write Protection Error...

Page 21: ...xa sudo setinterface dev ttyM0 UART Port 0 is in RS485 2W Mode 68Bstty stty command is used to manipulate the terminal settings You can view and modify the serial terminal settings with this command S...

Page 22: ...xpansion 69BDisable the USB Port USB ports on the UC 8100 LX can be disabled This must be done via the bootloader before booting up To disable a USB port follow these steps 1 After powering on the UC...

Page 23: ...pts on dev pts type devpts rw nosuid noexec relatime gid 5 mode 620 dev sdb1 on media usb0 type vfat rw nodev noexec noatime nodiratime sync fmask 0022 dmask 0022 codepage cp437 iocharset iso 8859 1 s...

Page 24: ...first see the current write protection status on the storage and then you may select Enable or Disable write protect function Current Boot Storage Write Protect is Disabled Change to 0 Disabled 1 Enab...

Page 25: ...ow these steps 1 Make sure the write protection switch of the SD card is unlocked 2 Insert the SD card into a Windows PC 3 Download win32diskimager from following link http sourceforge net projects wi...

Page 26: ...For Linux users follow these steps 1 Make sure the write protection switch of the SD card is unlocked 2 Insert the SD card into a Linux PC 3 Use dmesg command to find out the device node 4 Use dd com...

Page 27: ...tic LED indicators are activated as indicated in below table during resizing Please wait patiently until the diagnostic LEDs are put out System Status Diagnostic LED RED YELLOW GREEN Expanding root fi...

Page 28: ...any of the hardware issues contact Moxa for further steps Status Red LED Yellow LED Green LED UART1 device issue On On Off UART2 device issue except UC 8131 On On Blink LAN 1 device issue On Off Off L...

Page 29: ...l Strength Check the following table for the cellular signal strength and its relation to the signal indicator Signal Indicator Value RSSI dbm Condition 3 LEDs on red yellow green 20 to 30 73 to 53 Ex...

Page 30: ...nterface of cellular connection is wwan0 moxa Moxa dhclient wwan0 Disconnecting from a Dial Up Network Be sure to hang up the connection if you don t need the service anymore To disconnect you many us...

Page 31: ...do cell_mgmt power_off moxa Moxa sudo cell_mgmt power_on Sprint For Sprint users use the following commands to switch to correspondant profile for Sprint moxa Moxa echo n e ATE0 r n sudo tee dev ttyUS...

Page 32: ...50 67 F0 61 2D 7A Protocol 802 11b g ESSID MIS WAP 1 Mode Managed Frequency 2 412 GHz Channel 1 Quality 81 100 Signal level 58 dBm Noise level 92 dBm Encryption key on Bit Rates 54 Mb s 81BConfigurin...

Page 33: ...unction type usr sbin wifi_mgmt stop NOTE For more information about wpa_supplicant conf go to the following websites http www daemon systems org man wpa_supplicant conf 5 html http linux die net man...

Page 34: ...EEE802 11i D7 0 TKIP Temporal Key Integrity Protocol IEEE802 11i D7 0 WEP104 WEP with 104 bit key EP40 WEP with 40 bit key The default value is CCMP TKIP WEP104 WEP40 psk preshared key WPA preshared k...

Page 35: ...XA AP OK root Moxa home wpa_cli i wlan0 set_network 1 proto WPA WPA2 RSN OK root Moxa home wpa_cli i wlan0 set_network 1 key_mgmt WPA PSK OK root Moxa home wpa_cli i wlan0 set_network 1 pairwise TKIP...

Page 36: ...wpa_cli i wlan0 remove_network Remove a network Network id can be received from the LIST_NETWORKS command output Special network id all can be used to remove all networks wpa_cli i wlan0 reconfigure...

Page 37: ...latform Module gives the user more solid protection to the platform The following topics are covered in this chapter 34BSecure Boot 35BTrusted Platform Module TPM and TrouSerS 85BEnabling TPM via the...

Page 38: ...UC 8100 LX Software Manual Security On UC 8100 LX 4 2...

Page 39: ...secure platform that whoever copies the kernel file cannot understand or to add malicious code easily Next during boot up the ciphered kernel will be checked and decrypted into to plain kernel In cas...

Page 40: ...air in the TPM tpm_getpubek Display the public portion of the Endoresement Key in the TPM tpm_resetdalock Reset the dictionary attack lock for the user requires owner authentication tpm_restrictpubek...

Page 41: ...sable Command 0 1 2 TPM Chip Type SLB9645TT Device ID 0x1a TPM status check is enabled and activated Please reboot the system to complete the operation 4 After setting power off and then power on the...

Page 42: ...he Endorsement Key is typically a 2 048 bit RSA public and private key pair which is created randomly on the chip at manufacture time and cannot be changed The private key never leaves the chip while...

Page 43: ...ncrypt the given data and seal it to the symmetric key It is possible to invoke this command with several command line parameters Sealing Data moxa Moxa tpm_sealdata i secrect o secrect enc p 12 p 14...

Page 44: ...es 0 0 0 B eth1 Link encap Ethernet HWaddr 00 90 e8 00 00 08 inet addr 192 168 4 127 Bcast 192 168 4 255 Mask 255 255 255 0 UP BROADCAST ALLMULTI MULTICAST MTU 1500 Metric 1 RX packets 0 errors 0 drop...

Page 45: ...ation File 92BSyntax of the Selector 40BOpenSSL 93BCiphers 94BCryptographic Hash Functions 41BThe Apache Web Server 95BEdit ServerName in Apache Configuration File 42BSFTP 43BDNS 44BIPTABLES 96BObserv...

Page 46: ...should be run at that time Whenever cron executes a command a report is automatically mailed to the owner of the crontab or to the user named in the MAILTO environment variable in the crontab if such...

Page 47: ...th and authpriv for authentication cron comes from task scheduling services cron and atd daemon affects a daemon without any special classification DNS NTP etc ftp concerns the FTP server kern message...

Page 48: ...nformation on rsyslog https wiki debian org Rsyslog http www rsyslog com doc 40BOpenSSL UC8100 supports hardware accelerator with openssl Type lsmod to make sure the cryptodev module is loaded Module...

Page 49: ...enssl is built by MOXA or the hardware accelerator function will not work in other version 41BThe Apache Web Server The Apache HTTP Server Project is an effort to develop and maintain an open source H...

Page 50: ...a Moxa sudo usermod s bin false sftp 2 Then a modification to the current user made in the debian installation fase In this example we use ftpuser as the user moxa Moxa sudo mkdir home sftp upload mox...

Page 51: ...packet filter rule tables Several different tables are defined with each table containing built in chains and user defined chains Each chain is a list of rules that apply to a certain type of packet E...

Page 52: ...efined Targets of rule ACCEPT DROP REJECT LOG SNAT DNAT MASQUERADE POSTROUTING OUTPUT Filter Default Packet filtering INPUT OUTPUT FORWARD Mangle Packet header modification PREROUTING INPUT FORWARD OU...

Page 53: ...the UC 8100 LX series Use modprobe to insert and enable the module Use the following command to load the modules iptable_filter iptable_mangle iptable_nat modprobe iptable_filter Use iptables iptables...

Page 54: ...e accepted automatically and all connections are accepted without being filtered iptables F iptables X iptables Z 97BDefine Policy for Chain Rules Usage iptables t tables P INPUT OUTPUT FORWARD PREROU...

Page 55: ...e packet Examples Example 1 Accept all packets from lo interface iptables A INPUT i lo j ACCEPT Example 2 Accept TCP packets from 192 168 0 1 iptables A INPUT i eth0 p tcp s 192 168 0 1 j ACCEPT Examp...

Page 56: ...exact same if one host were out on the internet somewhere just note that port 22 or whatever port you have SSH configured on would need to be forwarded on any network equipment on the server s side of...

Page 57: ...ces on a network and maps local inside network addresses to one or more global outside IP addresses and un maps the global IP addresses on incoming packets back into local IP addresses ATTENTION Click...

Page 58: ...T sbin iptables t nat P POSTROUTING ACCEPT sbin iptables t nat P OUTPUT ACCEPT Step 3 Enable IP masquerade ehco 1 proc sys net ipv4 ip_forward modprobe ipt_MASQUERADE iptables t nat A POSTROUTING o et...

Page 59: ...will need to start stop the service with following command Start snmpd manually sudo etc init d snmpd start Stop snmpd manually sudo etc init d snmpd stop Enable snmpd insserv d snmpd Disable snmpd i...

Page 60: ...1 1 9 1 4 1 Timeticks 3 0 00 00 03 iso 3 6 1 2 1 1 9 1 4 2 Timeticks 3 0 00 00 03 iso 3 6 1 2 1 1 9 1 4 3 Timeticks 3 0 00 00 03 iso 3 6 1 2 1 1 9 1 4 4 Timeticks 4 0 00 00 04 iso 3 6 1 2 1 1 9 1 4 5...

Page 61: ...tic key Copy this static key to the clients etc openvpn directory using a secure channel like scp or sftp On the server create a new etc openvpn tun0 conf file and add the following dev tun0 ifconfig...

Page 62: ...lable packages moxa Moxa sudo apt cache pkgnames 108BFind Out Package Name and Description of Software To find out the package name and the description use the search flag Using search with apt cache...

Page 63: ...You can add more than one package name along with the command in order to install multiple packages at the same time For example the following command will install packages vim and goaccess moxa Moxa...

Page 64: ...particular package use the option download only source with package name as shown moxa Moxa sudo apt get download only source wget 124BDownload and Unpack a Package To download and unpack source code...

Page 65: ...in the local repository it will return an error code moxa Moxa sudo apt get build dep wget 130BAuto Clean Apt Get Cache The autoclean command deletes all deb files from var cache apt archives to free...

Page 66: ...UC 8100 LX The following topics are covered in this chapter 51BLinux Tool Chain Introduction 132BNative Compilation 133BCross Compilation 134BObtaining Help 52BTest Program Developing Hello c 135BCom...

Page 67: ...ese steps to update package menu 1 Make sure network connection is available 2 Use apt get update to update Debian package list moxa Moxa sudo apt get update 3 Install native compiler and necessary pa...

Page 68: ...linux gnueabihf 4 7 20130415 bin arm linux gnueabihf gcc ranlib usr local arm linux gnueabihf 4 7 20130415 bin arm linux gnueabihf ld usr local arm linux gnueabihf 4 7 20130415 bin arm linux gnueabihf...

Page 69: ...gnueabihf 4 7 20130415 share doc gcc linaro arm linux gnueab ihf man man1 arm linux gnueabihf gcc 1 Cross Compiling Applications and Libraries To compile a simple C application just use the cross comp...

Page 70: ...found continue with Step 7 7 Back up the user directory distribute the program to additional UC 8100 series units if needed The package CD contains several example programs Here we use Hello c as an...

Page 71: ...dbus Modbus Protocol is a messaging structure which is used to establish master slave client server communication between intelligent devices It is a de facto standard truly open and the most widely u...

Page 72: ...LM_READ rtc_tm Function RTC_IRQP_SET Description Set IRQ rate Usage unsigned long tmp 2 int ioctl fd RTC_IRQP_SET tmp value 2 4 8 16 32 64 Hz Function RTC_IRQP_READ Description Read IRQ rate Usage uns...

Page 73: ...LIVE Description Write to the watchdog device to keep watchdog alive Usage int ioctl fd WDIOC_KEEPALIVE 0 Function WDIOC_SETTIMEOUT Description Modify the watchdog timeout Min 1second Max 1day Default...

Page 74: ...We provide diagnostic LEDs library which name is libmx_led so to show the status of device but we also provide diagnostic LED API to let your own application be able to use these LEDs 137BTurn on LEDs...

Page 75: ...serial port if fd open device O_RDWR O_NOCTTY 1 return 1 fcntl fd F_SETFL 0 tcgetattr fd options cfsetispeed options speed B115200 cfsetospeed options speed B115200 cfmakeraw options options c_cflag C...

Page 76: ...iles base passwd 3 5 26 armhf Debian base system master password and group bash 4 2 dfsg 0 1 armhf GNU Bourne Again SHell bsdmainutils 9 0 3 armhf collection of more utilities from FreeBSD bsdutils 1...

Page 77: ...armhf high level tools to configure network interf initscripts 2 88dsf 41 deb7u1 armhf scripts for initializing and shutting down t insserv 1 14 0 5 armhf boot sequence organizer using LSB init d scr...

Page 78: ...Linux Kernel Device Mapper userspace library libedit2 armhf 2 11 20080614 5 armhf BSD editline and history libraries libevent 2 0 5 armhf 2 0 19 stable 3 armhf Asynchronous event notification library...

Page 79: ...bus5 3 0 3 1 armhf library for the Modbus protocol libmount1 2 20 1 5 3 armhf block device id library libmysqlclient18 armhf 5 5 37 0 wheezy1 armhf MySQL database client library libncurses5 armhf 5 9...

Page 80: ...b7u1 armhf Cyrus SASL pluggable authentication module libselinux1 armhf 2 1 9 5 armhf SELinux runtime shared libraries libsemanage common 2 1 6 6 all Common files for SELinux policy management l libse...

Page 81: ...library libwrap0 armhf 7 6 q 24 armhf Wietse Venema s TCP wrappers library libwvstreams4 6 base 4 6 1 5 armhf C network libraries for rapid application libwvstreams4 6 extras 4 6 1 5 armhf C network...

Page 82: ...er 1 6 0p1 4 deb7u1 armhf secure shell SSH server for secure access openssl 1 0 1e 2 deb7u11 uc8100 armhf Secure Socket Layer SSL binary and related openvpn 2 2 1 8 deb7u2 armhf virtual private networ...

Page 83: ...server metapackage sudo 1 8 5p2 1 nmu1 armhf Provide limited super user privileges to spe sysv rc 2 88dsf 41 deb7u1 all System V like runlevel change mechanism sysvinit 2 88dsf 41 deb7u1 armhf System...

Page 84: ...Common files vim runtime 2 7 3 547 7 all Vi IMproved Runtime files watchdog 5 12 1 armhf system health checker and software hardware wget 1 13 4 3 deb7u1 armhf retrieves files from the web whiptail 0...

Page 85: ...lifetime of the SD card The following topics are covered in this appendix 3BOverview SD Flash Types 4BTips for Running GNU Linux on an SD Card Use SLC SD Card Use an SD Card with Larger Capacity Twea...

Page 86: ...C solid state flash memory and is commonly used in various cosumer devices that use solid state storage Comparison Table for Flash Types Flash type SLC Single Level Cell 1 bit MLC Multilevel Cell 2 bi...

Page 87: ...d Avail Use Mounted on tmpfs 100M 596K 100M 1 var log There are a variety of locations that GNU Linux likes to make frequent writes This is a list of entries below that I use as a starting point that...

Page 88: ...8100 LX Software Manual Extending the Lifetime of the SD Card B 4 NOTE Click the following links for more information on minicom http www gnu org software coreutils manual html_node dd invocation htm...

Page 89: ...ther computer 2 Start Win32 Disk imager and complete the following steps a From the Device drop down list select the drive letter for the SD card for example L b In the Image File field enter the loca...

Page 90: ...an start using the image 6BUsing the dd command 1 Insert the SD or microSD card into another computer 2 Check the device folder for the SD or microSD card for example dev sdd and the directory and fil...

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