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GNUBLIN-Elektor

From GNUBLIN

Contents


Elektor.jpg

Series of articles "Embedded Linux Leicht gemacht!"


Have a look at the FAQ's if you discover some problems. You can also use the forum too if you got some problems or questions.

Technical details

  • ARM9 Processor at 180 MHz (LPC3131)
  • 32 MB SDRAM
  • microSD card for bootloader, kernel, filesystem and swap partition
  • USB-Device or USB-Host connector (configurable with jumpers)
  • 1 x Relay (max switching voltage 30 VDC / 250 VAC)
  • 3 x GPIO
  • 3 x ADC
  • 1 x PWM
  • 1 x SPI
  • 1 x I2C
  • 1 x USB-RS232 converter for serial terminal
  • 1 x Red LED
  • 1 x Power-LED
  • different boot options (SD-card, USB or RS232)
  • external power supply possible (7 - 12V DC)
  • Reset button

Download

With the Gnublin-Installer

Since Version 1.4.0.1 it is possible to create a SD-Card with the Gnublin-Installer also for the Elektor Board with 8MB memory. Here you can get the Gnublin Installer


Update existing card (recommended way)

Download file system:

wget http://www.gnublin.org/downloads/Gnublin_Elektor_Debian_8MB_rootfs.tar.gz

Connect the SD-Card to your computer and extract the file system:

sudo tar xvzf Gnublin_Elektor_Debian_8MB_rootfs.tar.gz -C /media/Gnublin

Instead /media/Gnublin you have to specify the correct path


Create a new Card

  • with Debian Image and gnublin-tools for the 8MB version

http://www.gnublin.org/downloads/Gnublin_Elektor_Debian_8MB.zip

  1. Download files
  2. extract
  3. copy binary image to a 2GB SD card

Linux:

dd if=Gnublin_Elektor_Debian_8MB.zip of=/dev/sdc

instead of /dev/sdc you have to specify the correct path to the card. You can find it with

dmesg

after plugging in the SD card.


Windows: On Windows you can copy the SD-Card with the tool http://sourceforge.net/projects/windd/

The following describes how the file system is extracted from the .img to the PC and then copy it to the SD card.

  1. wget http://www.gnublin.org/downloads/Gnublin_Elektor_Debian_8MB.zip
  2. unzip Gnublin_Elektor_Debian_8MB.zip
  3. sudo losetup /dev/loop0 /tmp/Gnublin_Elektor_Debian_8MB.img -o $((32130 * 512))
  4. cd /media/Gnublin/
  5. sudo tar -zc -f /tmp/Gnublin_Elektor_Debian_8MB_rootfs.tar.gz *
  6. sudo losetup -d /dev/loop0
  7. Then plug in the SD-Card and mount it. Now extract the filesystem.
  8. sudo tar xvzf /tmp/Gnublin_Elektor_Debian_8MB_rootfs.tar.gz -C /media/Gnublin

Instead /media/Gnublin you have to specify the correct path

Interfaces and components

The following picture shows the most important interfaces and components of the Gnublin Elektor board

Gnublin elektor beschreibung 2.png

Settings

You can select different boot options with two jumpers. The USB OnTheGo interface can be configured as Host or Device.

The following picture shows the jumpers and the selected option, depending on how you plug the jumper.


Gnublin elektor jumper.png

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