Jean-Luc Aufranc (CNXSoft), Author at CNX Software - Embedded Systems News

June 13, 2012June 13, 2012 by Jean-Luc Aufranc (CNXSoft) - No Comments

Raspberry Pi Debian Wheezy Alpha, Bodhi Linux Alpha and Pwn, A Security Test Suite

I still haven’t received my Raspberry Pi board, but there have been a couple of interesting Raspberry Pi software news this week. Raspberry Pi Debian Wheezy “Alpha” This is an update to Raspberry Pi Debian Squeeze 6.0, based on Wheezy (Debian 7.0) and the maintainer (Alex) is looking for volunteer to help test it and iron it out, before the Raspberry Pi foundation officially announce the distribution on its blog. This distribution comes will the following: * Scratch, Python, Midori etc as before * A configuration tool for common initial setup tasks (resize root partition, change keyboard layout) * omxplayer * USB drives auto mount * Lots more This is alpha quality, so you can’t expect it something very stable, but if you want to test drive it, you can download it via BitTorrent (447 MB). Sha1sum: bdad7f1c504e22f8d754028843abb9da4330107f. You can login with the following credentials: User: pi | password:raspberry Known […]

June 12, 2012June 12, 2012 by Jean-Luc Aufranc (CNXSoft) - 12 Comments

ARM Unveils Some Details About Mali-450 GPU

EETimes reports that ARM has shown details about its new GPU, the Mali-T450, which offers up to twice the performance of the Mali-400 and can be scaled up to 8 cores, whereas Mali-400 can only be scaled up to 4 cores. The Mali-450 (codename Tyr) targets entry-level and mid-range mobile devices, and is said to be software compatible with Mali-400. ARM new GPU has also been “tweaked” to provide better performance at the cost of occupying a slightly larger area. The company recommends the use Mali-400 for 1 to 4 cores configuration and Mali-450 for 5 to 8 cores configuration for higher end products. Contrary to Mali-T604 and Mali-T685 GPU, Mali-450 does not support general purpose computing on GPU (GPGPU). ARM is also working on a new GPU codenamed Skrymir based on Midgard architecture (Like Mali-T604 & T658) that should be available in 2014. Source: EETimes Jean-Luc Aufranc (CNXSoft)Jean-Luc started […]

June 12, 2012August 5, 2012 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Adafruit mbed and NFC/RFID Starter Pack with µNFC stack & NFC Mood Lamp Demo

If you are looking for a (relatively) low cost NFC development kit, you may interested in Adafruit mbed and NFC/RFID Starter Pack that sells for 134.99 USD. The kit contains the following items: mbed LPC1768 (Cortex M3) development board with mini-B USB cable and reference cards NFC/RFID breakout board based on PN532 NFC transceiver MiFare RFID card with 1K programmable EEPROM Full-sized breadboard 40 x 3″ (75mm) long male/male jumper wires Standard blue & white 16×2 character LCD + contrast potentiometer + header Diffused 5mm RGB LED + 3 x 560 ohm resistors Analog temperature sensor (TMP36) Piezo buzzer 2 x 10K trim potentiometer 5 x Tactile Pushbuttons On the software side, you can use AppNearMe µNFC stack written in C++ that allows you to use a user interface on NFC-enabled smartphone, removing the need for knobs, buttons, screens on your embedded device. During the initial pairing, the NFC board can […]

June 11, 2012June 11, 2012 by Jean-Luc Aufranc (CNXSoft) - No Comments

Texas Instruments Launchpad MSP-EXP430G2 & Capacitive Touch Booster

This is a guest post about the low cost Launchpad MCU devkit. This kit was unveiled in 2010, but since I’d never written about this $4.30 development kit previously, I’ve accepted to publish the post below with slight modifications and amendments. You may be itching to get started with a micro-controller based project but held back because of the high cost of the development boards, and the complex nature of tools required. The good news is that Texas Instruments have come up with a development kit – including a board and the required development software tools. This tool is intended for beginners as well as experienced users. In fact, at under $5, the Texas Instruments’ LaunchPad gives you a complete environment in which you can get started with your projects. This LaunchPad Development Kit is a part of the Texas Instruments MSP430 Value Line series of micro-controllers. You can program, […]

June 11, 2012June 11, 2012 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

GeneralPlus GP3300 Cortex A8 Processor and Android Tablet Reference Design

I’ve recently come across Eken D70 Tablet which is a typical 7″ Android ICS tablet, except it’s product description shows a Cortex A8 chip called GP33003. After some research, I found that this chipset is provided by GeneralPlus (previously part of Sunplus). GP3300x application processor features a cortex A8 clocked at 1 GHz together with a PowerVR SGX531 GPU, and comes in 216pins LQFP package. This SoC integrates LVDS and HDMI, and the company told me that the GP33XX targets “higher resolution displays, but still keep the lower PCB cost, compared to its current competitors”. It also features an hardware video decoder and encoder (up to 1080p), and can handle a 720p full-duplex video conference. That’s about all the information I could get about the SoC itself. I’ll update this post If I find out more. The company also provides a tablet reference design (GP3300xA Tablet) with the following specifications: […]

June 10, 2012December 18, 2012 by Jean-Luc Aufranc (CNXSoft) - 12 Comments

TechNexion EDM Modules: Open Software and (somewhat) Open Hardware ARM & x86 CPU Modules

TechNexion, a Taiwanese “embedded solution” company, was present at Computex 2012 showcasing their ARM & x86 CPU Modules and corresponding development kits. The company recently created the EDM Standard, an open hardware and software standard for x86 and ARM Computer on Modules available under the creative commons share alike license. Their EDM modules come in three form factors: EDM Compact: 82 x 60 mm (ARM only) EDM Standard: 82 x 95 mm (ARM and x86) EDM Extended: 82 x 145 mm (x86 only) They have already designed 5 modules based on this standard: EDM-CF-iMX6 EDM Compact Module powered by Freescale i.MX6 (solo, dual or quad) EDM-CT-AM437x EDM Compact Module powered by TI Sitara AM437x (single core Cortex A9) EDM-SF-iMX6 EDM Standard Module with Freescale i.MX6 EDM-ST-AM437x EDM Standard Module with TI Sitara AM437x EDM-XI-QM77 EDM Extended Module with Intel QM77 3rd generation i3/i7 core I could not find information about […]

June 9, 2012June 9, 2012 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

Geniatech Enjoy TV Stick ATV100: Amlogic AML8726-M3 Android 4.0 HDMI Dongle

Geniatech showcased the Enjoy TV Stick ATV100 at Computex 2012. This is yet another HDMI stick running Android 4.0, but instead of being powered by AllWinner A10 like most others, it is based on AMLogic AML8726-M3 (Single core Cortex A9) clocked at 800 MHz. The device also comes with 1 GB DDR3 memory, 2GB NAND Flash and features 2 USB ports (Standard USB 2.0 Host + mini USB OTG), a microSD slot and a port for an IR extension cable. Contrary to all HDMI dongles I have seen, there is also an external Wi-Fi antenna, as you can see on the picture above. An InfraRed remote with 6 keys is also included. The first part of the video below is about Geniatech ATV1200, an Android 4.0 set-top box based on AMLogic AML8726-MX (Dual Core Cortex A9), and the part about ATV100 starts at 2:23. I think there is a misunderstanding […]

June 8, 2012 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

How To Create and Seed a Torrent in Ubuntu Using Transmission Command Line

You may have a server with limited (free) monthly bandwidth, but yet need to share some large files or files that need to be accessed by a large number of people. Instead of sharing your files via your HTTP server, you can share them via BitTorrent instead in order to hopefully save bandwidth. Here are the steps I followed on Ubuntu 11.10, but they should work with any version of Ubuntu, Debian and Mint. Install transmission client and daemon

sudo apt-get install transmission-cli transmission-daemon

1	sudo apt-get install transmission-cli transmission-daemon

Create a directory to share your files and .torrent files

mkdir ~/p2p

1	mkdir ~/p2p

Copy your file in that directory and create the torrent file with transmission-cli

transmission-create ubuntu.bin.7z -t udp://tracker.openbittorrent.com:80

1	transmission-create ubuntu.bin.7z -t udp://tracker.openbittorrent.com:80

Start transmission-daemon

transmission-daemon -c ~/p2p

1	transmission-daemon -c ~/p2p

That’s all your need to do. If you want to monitor transmission remotly via a web interface, you can instead run transmission-daemon as follows: transmission-daemon -c ~/p2p -a public_ip Where public_ip is the public ip of your computer. Alternatively, you could also […]