Revision as of 18:33, 20 April 2012

IGEP COM PROTON Product Page Hardware manual IGEP COM PROTON guides: [[Getting started with IGEP COM PROTON|Getting started]] [[What can I do with IGEP COM PROTON|What can I do with IGEP COM PROTON]] Start developing

Overview

1) Booting up IGEP COM PROTON

2) Basic instructions

3) Send a file between a PC and IGEP COM PROTON

4) Mount a MicroSD card

Booting and setting up

This distribution consists on a minimal Linux-based distribution with a lite X Window System and GNOME Mobile based applications created with Poky Platform Builder.

In the previous chapter of this tutorial, we have booted IGEP COM PROTON with its pre-installed software.

Once the board has booted up, you can log in into IGEP COM PROTON via many interfaces. In the previous chapter of this tutorial we have used the USB Ethernet Gadget and the Wifi interface, but you can use many other interfaces when connecting IGEP COM PROTON to an IGEP Expansion Board.

Boot priority

In fact, IGEP COM PROTON can boot from many other devices (listed by priority):

1. from USB
2. from UART3
3. from a MMC/MicroSD card
4. from OneNAND memory

As we haven't set any other boot device rather than the oneNAND (the IGEP COM PROTON flash memory) the system boots from it.

But, as the MicroSD card has an upper priority than the flash, if you plug a MicroSD card (with the right configuration on it) to the MicroSD card reader, IGEP COM PROTON will boot from it and won't boot from the flash memory.

Now, We are going to use this functionality to update your pre-installed software.

Basic instructions

IGEP COM PROTON is compatible with many Linux distributions. In this tutorial we are using Poky Linux, which is the pre-installed software from ISEE.

In case you are not familiar with Bash instructions, here comes some basic instructions to help you startup with the board.

First of all, log in to IGEP COM PROTON with a console from your host PC (via serial port or via SSH), as shown previous sections in this article. Remember the default settings:

login: root
password: (none: press return)

Once you are logged in IGEP0030, run the following commands:

cd /
ls

You have moved to the root directory, that is "/". The instruction "ls" lists all the existing files and directories in the current "path".

Now let's go to the directory /home/root/ with:

cd /home/root/

You can always check at which directory you are with the instruction:

pwd

Most instructions include a 'help' option that can be accessed by inserting the parameter --help. Check out the help page of 'echo' instruction, for example:

echo --help

You can try the instruction by yourself and type:

echo Hello

You have sent the text "Hello" to the standard output, that is the console you are interacting with.

But you can change and 'redirect' the output by using the character '>' :

echo Hello world! > /home/root/name.file

Now notice you have redirected the output to a file called name.file :

ls

You can append any file using '>>' instead of '>'. You can print the content of the file to the standard output:

cat /home/root/name.file

Building a basic script

You can create a script that can run any instruction you want to use in Bash. The main advantage is that you do not have to compile the code, as is auto-interpereted by the system.

We are going to create a basic 'Hello World' script that is going to run the same command you have actually used before:

echo "echo > Hello world!" > /home/root/example.sh
cat example.sh

Now you have created a file called example.sh, but by default it has no execute permissions (x):

ls -la

We are going to add permission to the file by:

chmod a+x example.sh
ls -la

Now you can run the script:

./example.sh

You can edit this file (example.sh) with 'vi', the pre-installed text editor in IGEP COM PROTON.

vi example.sh

Press ESC and:

•  :q! , to exit without saving
•  :w , to save
•  :wq , to quit and save
• i , to insert text

Other simple & useful instructions

• mkdir
• rmdir
• find
• grep

You can stop any instruction by pressing CTRL+C

Send a file between a PC and IGEP COM PROTON

In a Linux host PC, you can use SCP (secure copy) via SSH to transfer files between IGEP COM PROTON and your host PC.

We are going to use the default settings in IGEP COM PROTON for USB Ethernet Gadget.

Note: This section is assuming you have successfully followed the previous chapters in this tutorial

Now let's transfer a file called original.file from your host PC to the directory /home/root/ in your IGEP COM PROTON.

In your Host PC open Terminal and type:

scp -r original.file root@<destination_IP>:/home/root/destination.file

where:

• destination_IP: 192.168.7.2 via USB Ethernet Gadget, 192.168.6.1 via Wifi

You can repeat the process from the IGEP COM PROTON console, and transfer a file from IGEP COM PROTON to your Host PC.

Mount a MicroSD card

(Work in progress section!)

Access to Generic FAT32 microSD

mount -t vfat /dev/mmcblk0 /mnt/tmp/

Access to Generic USB Flash disk

mount -t vfat /dev/sda1 /mnt/tmp/

Safety Remove microSD

umount /mnt/tmp

Access to IGEP demo microSD

mount -t jffs2 /dev/mmcblk0 /mnt/tmp/

Continue with this tutorial at: Start developing under IGEP Technology