Difference between revisions of "Getting started with IGEP MODULE"

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(Created page with '== Introduction == This page describes how to use the USB device (or OTG) port of your OMAP3 IGEP module to communicate with your PC. The HS USB OTG port is used as the default…')
 
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This page describes how to use the USB device (or OTG) port of your OMAP3 IGEP module to communicate with your PC.
 
This page describes how to use the USB device (or OTG) port of your OMAP3 IGEP module to communicate with your PC.
  
−
The HS USB OTG port is used as the default power input,  
+
We should directly power the board via the USB OTG port using a USB A type plug to mini B type plug cable. The HS USB OTG port is used as the default power input,
  
−
By default the module interface will have the IP address 192.168.7.2
+
Once the board is up and running, we next turn to get ethernet connectivity over the USB OTG cable. By default the module interface will have the IP address 192.168.7.2
  
 
== Linux Host USB Network Configuration ==
 
== Linux Host USB Network Configuration ==
Line 21: Line 21:
 
     gateway 192.168.7.1
 
     gateway 192.168.7.1
  
−
Connect to board using ssh
+
Connect to the board using ssh
−
  $ ssh -l root 192.168.7.2
+
  ssh -l root 192.168.7.2
 +
 
 
  The authenticity of host '192.168.7.2 (192.168.7.2)' can't be established.
 
  The authenticity of host '192.168.7.2 (192.168.7.2)' can't be established.
 
  RSA key fingerprint is 9d:0e:ba:02:2a:76:e4:5f:d1:c1:9b:2d:85:6c:83:d4.
 
  RSA key fingerprint is 9d:0e:ba:02:2a:76:e4:5f:d1:c1:9b:2d:85:6c:83:d4.
Line 33: Line 34:
 
=== Windows 7 ===
 
=== Windows 7 ===
 
*http://robosavvy.com/forum/viewtopic.php?p=28788
 
*http://robosavvy.com/forum/viewtopic.php?p=28788
 +
 +
== Mac OS X Host USB Network Configuration ==
 +
 +
Please contribute ...
 +
 +
== Updating and flashing the firmware ==
 +
 +
'''Latest is: Poky 3.3.1-3 (/etc/version - 201011081439)'''
 +
 +
Updating the firmware is done using a SD card, first we will create a minimal SD card and copy latest firmware image into the SD card
 +
mkdir workdir && cd workdir
 +
wget http://downloads.igep.es/poky/green-3.3/v3.3.1-3/poky-media-create
 +
wget http://downloads.igep.es/poky/green-3.3/v3.3.1-3/poky-media-minimal-igep0030-sdcard-3.3.1-3.tar.gz
 +
chmod +x poky-media-create
 +
 +
Next, insert your SD card into the host machine and ensure you know the device node for your sd card reader. In the following example we assume /dev/mmcblk0. If you are unsure of the device node of your SD card, remove and reinsert the card and type dmesg on the command line. The last few lines should give you the device node of the card you just inserted.
 +
 +
./poky-media-create --mmc /dev/mmcblk0 --binary poky-media-minimal-igep0030-sdcard-3.3.1-3.tar.gz
 +
 +
Now it's time to download needed packages and copy into SD card
 +
 +
wget http://downloads.igep.es/poky/green-3.3/v3.3.1-3/poky-media-minimal-igep0030-flash-3.3.1-3.tar.gz
 +
wget http://downloads.igep.es/poky/green-3.3/v3.3.1-3/u-boot-env_2010.06-0-r0_igep0030.ipk
 +
mkdir disk && sudo mount /dev/sdb2 disk
 +
sudo tar xzf poky-media-minimal-igep0030-flash-3.3.1-3.tar.gz -C disk/home/root/
 +
sudo cp u-boot-env_2010.06-0-r0_igep0030.ipk disk/home/root
 +
sudo umount disk && rmdir disk
 +
 +
Connect to device
 +
ssh -l root 192.168.7.2
 +
 +
Some packages are missing in SD image, we should install
 +
opkg install u-boot-env_2010.06-0-r0_igep0030.ipk
 +
 +
Next, enter into firmware directory
 +
cd poky-media-minimal-igep0030-flash-3.3.1-3
 +
 +
By default the flash.sh script test fulls OneNAND, it takes a long time and it's not really necessary, we should speed up the flash process editing the flash.sh script and commenting next lines
 +
# Test and mark OneNAND bad blocks
 +
# for i in 0 1 2 3 4; do nandtest -m /dev/mtd${i}; done
 +
 +
Now you can run the flash script
 +
./flash.sh
 +
 +
== Troubleshooting ==
 +
 +
=== WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! ===
 +
 +
In the case of the SSH client in Linux, a changed host key results in the client refusing to connect and showing an remote host identification has changed error
 +
 +
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
 +
@    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!    @
 +
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
 +
IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
 +
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
 +
It is also possible that the RSA host key has just been changed.
 +
The fingerprint for the RSA key sent by the remote host is
 +
8d:0b:29:f0:0a:a1:f5:56:0c:12:18:b0:26:02:6d:9d.
 +
Please contact your system administrator.
 +
Add correct host key in /home/eballetbo/.ssh/known_hosts to get rid of this message.
 +
Offending key in /home/eballetbo/.ssh/known_hosts:57
 +
RSA host key for 192.168.7.2 has changed and you have requested strict checking.
 +
 +
To fix the problem edit your ~/.ssh/known_hosts and remove the line corresponding to this host.

Revision as of 14:14, 16 November 2010

Introduction

This page describes how to use the USB device (or OTG) port of your OMAP3 IGEP module to communicate with your PC.

We should directly power the board via the USB OTG port using a USB A type plug to mini B type plug cable. The HS USB OTG port is used as the default power input,

Once the board is up and running, we next turn to get ethernet connectivity over the USB OTG cable. By default the module interface will have the IP address 192.168.7.2

Linux Host USB Network Configuration

You should have the usbnet module available for your Linux kernel. On most distributions, this is the case by default. If this is not the case for your distribution, you will need to enable USB networking support in the kernel. If you build your own kernel then you want 'CDC Ethernet support' in USB Network adaptors.

Ubuntu 10.04 LTS Lucid Lynx

In the file /etc/network/interfaces, you should add a section which looks like this: 

auto usb0
iface usb0 inet static
    address 192.168.7.1
    network 192.168.7.0
    netmask 255.255.255.0
    broadcast 192.168.7.255
    gateway 192.168.7.1

Connect to the board using ssh 

ssh -l root 192.168.7.2
 
The authenticity of host '192.168.7.2 (192.168.7.2)' can't be established.
RSA key fingerprint is 9d:0e:ba:02:2a:76:e4:5f:d1:c1:9b:2d:85:6c:83:d4.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '192.168.7.2' (RSA) to the list of known hosts.
root@192.168.7.2's password: [enter] (no password)
root@igep0030:~#

Windows Host USB Network Configuration

Windows 7

Mac OS X Host USB Network Configuration

Please contribute ...

Updating and flashing the firmware

Latest is: Poky 3.3.1-3 (/etc/version - 201011081439)

Updating the firmware is done using a SD card, first we will create a minimal SD card and copy latest firmware image into the SD card 

mkdir workdir && cd workdir
wget http://downloads.igep.es/poky/green-3.3/v3.3.1-3/poky-media-create
wget http://downloads.igep.es/poky/green-3.3/v3.3.1-3/poky-media-minimal-igep0030-sdcard-3.3.1-3.tar.gz
chmod +x poky-media-create

Next, insert your SD card into the host machine and ensure you know the device node for your sd card reader. In the following example we assume /dev/mmcblk0. If you are unsure of the device node of your SD card, remove and reinsert the card and type dmesg on the command line. The last few lines should give you the device node of the card you just inserted. 

./poky-media-create --mmc /dev/mmcblk0 --binary poky-media-minimal-igep0030-sdcard-3.3.1-3.tar.gz

Now it's time to download needed packages and copy into SD card 

wget http://downloads.igep.es/poky/green-3.3/v3.3.1-3/poky-media-minimal-igep0030-flash-3.3.1-3.tar.gz
wget http://downloads.igep.es/poky/green-3.3/v3.3.1-3/u-boot-env_2010.06-0-r0_igep0030.ipk
mkdir disk && sudo mount /dev/sdb2 disk
sudo tar xzf poky-media-minimal-igep0030-flash-3.3.1-3.tar.gz -C disk/home/root/
sudo cp u-boot-env_2010.06-0-r0_igep0030.ipk disk/home/root
sudo umount disk && rmdir disk

Connect to device 

ssh -l root 192.168.7.2

Some packages are missing in SD image, we should install 

opkg install u-boot-env_2010.06-0-r0_igep0030.ipk

Next, enter into firmware directory 

cd poky-media-minimal-igep0030-flash-3.3.1-3

By default the flash.sh script test fulls OneNAND, it takes a long time and it's not really necessary, we should speed up the flash process editing the flash.sh script and commenting next lines 

# Test and mark OneNAND bad blocks
# for i in 0 1 2 3 4; do nandtest -m /dev/mtd${i}; done

Now you can run the flash script 

./flash.sh

Troubleshooting

WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!

In the case of the SSH client in Linux, a changed host key results in the client refusing to connect and showing an remote host identification has changed error 

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that the RSA host key has just been changed.
The fingerprint for the RSA key sent by the remote host is
8d:0b:29:f0:0a:a1:f5:56:0c:12:18:b0:26:02:6d:9d.
Please contact your system administrator.
Add correct host key in /home/eballetbo/.ssh/known_hosts to get rid of this message.
Offending key in /home/eballetbo/.ssh/known_hosts:57
RSA host key for 192.168.7.2 has changed and you have requested strict checking.

To fix the problem edit your ~/.ssh/known_hosts and remove the line corresponding to this host.

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