Difference between revisions of "Using IGEP WLAN to communicate"

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If your IGEP processor board has wifi interface you can connect to it and access your board, for example, via SSH.
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<section begin=exclude />
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{{Message/Information Message|title=|message= In this guide is used [[ IGEP firmware Yocto ]]}}
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<section end=exclude />
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=== Overview  ===
  
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<br>
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If your IGEP Processor Board has '''WIFI interface''' you can connect to it without any cable. You can open a SSH session in your computer and interact with your Board from your console. Here is how to.
  
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== Download Boot and Rootfs ==
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=== Requirements ===
  
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You can download the boot partition and the rootfs partition packages from here:  
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There are some requisites to follow this guide:  
  
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*[http://downloads.igep.es/files/IGEP_Mod_linaro/boot-linaro_minimal.10.10.tar.bz2| Boot Partition]
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*IGEP Processor Board with WIFI
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*[http://downloads.igep.es/files/IGEP_Mod_linaro/rootfs-linaro_minimal.10.10.tar.bz2| Root File System]<br>
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*Host computer with WIFI
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*[http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html PuTTy program]
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<section begin=wifi_connect />
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=== Connect to IGEP network  ===
  
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<br>
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Follow these steps to connect to your IGEP device:
  
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== Create a Boot MicroSD Card<br>  ==
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*Click on the Network Manager Tray icon.
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*Select IGEP_&lt;xx&gt; network, where &lt;xx&gt; is different for every IGEP device, to connect.
  
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Now create a Boot MicroSD Card using the two packages above. Follow this HowTo from the IGEP Wiki:  
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{| cellspacing="1" cellpadding="1" border="1" width="200"
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|-
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| [[Image:Igep wificon1.png|331px]]
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| [[Image:Igep wificon2.png|331px]]
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|}
  
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*[[How to boot from MicroSD Card|How to boot from MicroSD Card]]. '''Note''': Just follow the 2nd point “Preparing the MicroSD Card” to create the two partitions needed.
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'''<sup>Click to enlarge image</sup>'''  
  
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<br>
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=== Connect to IGEP  ===
  
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Uncompress and untar the file ''boot-linaro_minimal.10.10.tar.bz2'' in the '''boot partition''' and the file ''rootfs-linaro_minimal.10.10.tar.bz2'' in the '''rootfs partition''' of your MicroSD Card.<br>
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Follow these steps to get a remote shell prompt:
  
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== Configure the network<br>  ==
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*Open PuTTy program
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*Host Name:192.168.6.1
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*Port: 22
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*Connection type: SSH
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*Click Open, accept Security Alert and login as root user
  
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Now it is time to configure the wireless network in your IGEP&nbsp;board.  
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{| cellspacing="1" cellpadding="1" border="1" width="200"
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|-
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| [[Image:Igep wifiputty1.png|331px]]
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| [[Image:Igep wifiputty2.png|331px]]
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|-
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| [[Image:Igep wifiputty3.png|331px]]
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| [[Image:Igep wifiputty4.png|331px]]
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|}
  
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The rootfs partition in the MicroSD Card should be available in the ''/media/rootfs'' directory in your host PC. There edit the file ''/media/rootfs/etc/network/interfaces''  
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'''<sup>Click to enlarge image</sup>'''  
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<pre>  interfaces(5) file used by ifup(8) and ifdown(8)
 
  
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  auto lo wlan0
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Note that a DHCP IP address in range 192.168.6.10-192.168.6.254 should be given to your host PC. The IGEP device should have IP address 192.168.6.1.
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<section end=wifi_connect />
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=== Troubleshooting  ===
  
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  iface lo inet loopback
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==== NFS in root filesystem  ====
  
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  iface wlan0 inet dhcp
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Don't use NFS in root filesystem combined with WIFI
  
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  wpa-driver wext
 
  
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  wpa-ssid '''&lt;put here your Access Point SSID&gt;'''
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=== See also  ===
  
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  wpa-ap-scan 2
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*[[How to setup Marvell 88w8686 SDIO wifi]]
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*[[Using USB ethernet gadget to communicate]]
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*[[Using serial debug port to communicate]]
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*[[Using SSH to communicate]]
  
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  wpa-proto RSN
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[[Category:Wifi]]
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  wpa-pairwise CCMP
 
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  wpa-group CCMP
 
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  wpa-key-mgmt WPA-PSK
 
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  wpa-psk '''&lt;put here your AP key*&gt;'''
 
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</pre>
 
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<br>
 
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Complete the gaps with the missing information from your network configuration.<br>
 
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To set the same wpa-psk from your access point, execute this command in your PC (with wifi):<br>
 
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<pre>wpa_passphrase "Access Point Name" "WPA2 Pass Phrase"
 
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</pre>
 
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This command gives you the '''wpa-psk key''' and you can replace it at the space from the file mentioned above: ''wpa-psk &lt;put here your AP key*&gt; ''<br>
 
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<br>
 
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This configuration enables the wifi and automatically '''gets the IP from DHCP by default'''.<br>
 
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Therefore, when you boot the IGEP board you might have to get its IP from your Access Point, maybe in its management console or page if provided.
 
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=== Using static IP<br>  ===
 
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If you wish to use a static IP then you should change at the same interfaces file:
 
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<pre>interfaces(5) file used by ifup(8) and ifdown(8)
 
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auto lo wlan0
 
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iface lo inet loopback
 
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iface wlan0 inet static
 
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    wpa-driver wext
 
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    wpa-ssid &lt;put here your AP SSID&gt;
 
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    wpa-ap-scan 2
 
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    wpa-proto RSN
 
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    wpa-pairwise CCMP
 
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    wpa-group CCMP
 
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    wpa-key-mgmt WPA-PSK
 
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    wpa-psk &lt;put here your AP key&gt;
 
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address 192.168.1.44
 
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netmask 255.255.255.0
 
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gateway 192.168.1.1
 
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</pre>
 
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You are now ready to [[Using SSH to communicate|connect to your board via SSH]], for example.
 
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Remember that the connection details for this package are:<br>
 
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<pre>Username: root
 
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Password: letmein</pre>
 
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<br>
 
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== See also  ==
 
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[[Using USB ethernet gadget to communicate]]
 
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[[Using serial debug port to communicate]]
 
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[[Category:Work_in_progress]] [[Category:Communications]]
 

Latest revision as of 16:26, 27 August 2012

Information.jpg In this guide is used IGEP firmware Yocto

Overview

If your IGEP Processor Board has WIFI interface you can connect to it without any cable. You can open a SSH session in your computer and interact with your Board from your console. Here is how to.

Requirements

There are some requisites to follow this guide:

  • IGEP Processor Board with WIFI
  • Host computer with WIFI
  • PuTTy program

Connect to IGEP network

Follow these steps to connect to your IGEP device:

  • Click on the Network Manager Tray icon.
  • Select IGEP_<xx> network, where <xx> is different for every IGEP device, to connect.
Igep wificon1.png Igep wificon2.png

Click to enlarge image

Connect to IGEP

Follow these steps to get a remote shell prompt:

  • Open PuTTy program
  • Host Name:192.168.6.1
  • Port: 22
  • Connection type: SSH
  • Click Open, accept Security Alert and login as root user
Igep wifiputty1.png Igep wifiputty2.png
Igep wifiputty3.png Igep wifiputty4.png

Click to enlarge image

Note that a DHCP IP address in range 192.168.6.10-192.168.6.254 should be given to your host PC. The IGEP device should have IP address 192.168.6.1.

Troubleshooting

NFS in root filesystem

Don't use NFS in root filesystem combined with WIFI


See also

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