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February 13, 2013February 17, 2013 by Jean-Luc Aufranc (CNXSoft) - 27 Comments

ARMBRIX Zero Cortex A15 Development Board Unboxing Pictures

I’ve just received an early sample of ARMBRIX Zero (aka ARMBRIX-5250-A), a development board based on Samsung Exynos 5250 dual cortex A15 processor with 2GB RAM, a microSD slot, 1x USB 3.0, 2x USB 2.0 Host, 1x USB Device, 10/100 Ethernet, HDMI output, SATA 3.0, some Audio I/O ports, and 3 expansions headers. This is basically a low cost version of the Arndale board, with things such as eMMC 4.5 (Sorry I’ve missed the eMMC socket at the back of the board) sensors missing. Today, I won’t turn the board on (I’ll explain why at the end of the post), but instead show some pictures of the development and debug boards. If you had previously seen the board picture before, you’ll noticed it has a grown a heatsink. The heatsink is probably here to stay, but may be slightly different (e.g. lower) when you receive your board. The bottom acrylic […]

January 15, 2013January 15, 2013 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

F2FS – A New Flash File System for Mobile Devices – ELCE 2012

Joo-Young Hwang, principal engineer at Samsung, presents F2FS (Flash-Friendly File System), a new file system designed for storage in mobile devices at the Embedded Linux Conference in Barcelona, Spain, on November 5, 2012. Abstract: Recent mobile devices adopt various flash storages as a primary storage. File system support for those flash storages is a must for flash device performance and lifespan. I will present a new file system, called F2FS, designed for mobile flash storages. F2FS is designed considering the characteristics of the underlying flash storage which has flash translation layer (FTL). F2FS outperforms EXT4, which is a popular file system for Android phones, in most of benchmarks. I will describe motivation, design, and implementation of the file system, then show performance comparison data with EXT4. Target audiences are those who are interested in file system support for flash storages such as eMMC and SSD. Kernel and file system expertise […]

January 10, 2013January 10, 2013 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

Samsung Exynos Octa big.LITTLE 8 Cores SoC Announced at CES 2013

Samsung Electronics unveiled the very first big.LITTLE Cortex A7/A15 SoC at CES 2013. Exynos Octa will feature 4 Cortex A15 cores together with 4 Cortex A7 cores, and make use of big.LITTLE processing to optimize energy using In-Kernel Switching (IKS), where the kernel uses Cortex A15 or Cortex A7 cores depending on the load, or Heterogeneous MultiProcessing (HMP), where different tasks are assigned to different cores, and both Cortex A15 and A7 can be used simultaneously. Check my earlier post “Big.LITTLE Processing Implementations and Current Status” for an overview on how this all works. The new Intel processors for smartphones/tablets are now very close to ARM when it comes to power consumption, and ARM may regain a clear lead thanks to big.LITTLE processing technology, which is currently shown to consume about 40% less power than equivalent tasks run on Cortex A15 (only) processors. Samsung claims it may offers up to […]

December 26, 2012December 27, 2012 by Jean-Luc Aufranc (CNXSoft) - 11 Comments

$135 ARMBRIX Zero Exynos 5 Development Board Is Now Available for Pre-order

Ten days ago, I wrote about ARMBrix Zero, the cheapest Cortex A15 board (soon to be) available based on Samsung Exynos 5250 processor. It is now available for pre-order, and the company organizes a raffle to send a free ARMBRIX Zero board to the winner. I’ve received some updated specifications, although we don’t learn much more: CPU – Exynos 5 Dual ARM Cortex A15 Dual GPU – Mali T604 Embedded GPU Memory – 2GB DDR3 X32, 800MHz Storage – MicroSD slot Audio – ALC5631Q Line In/Out, SPDIF Coaxial type Video – HDMI A Type External Ports: 2x USB2.0 Host 1x USB3.0 Host 1x USB2.0 Device 1x SATA 1x Ethernet RJ45 Expansions – 3 Headers (Further details should be available later this week) CON16 – MIPI Master/Slave, 1x I2C, GPIO CON19 – 3x serial interfaces, 2x I2C, 2x ADC, JTAG, USB, MMC, and reset CON20 – I2S, Interrupt and GPIO pins, […]

December 16, 2012February 13, 2013 by Jean-Luc Aufranc (CNXSoft) - 13 Comments

$135 ARMBRIX Exynos 5 Dual Cortex A15 Development Board

If you want to develop on a Cortex A15 processor, but Arndale development board is a bit expensive for you, don’t despair as ARMBRIX development board featuring Samsung Exynos 5 Dual processor is currently being developed and should be available in Q1 2013 for $135. The preliminary specifications include: SoC – Samsung Exynos 5 Dual Cortex A15 CPU + Mali T604 GPU System Memory – 2 GB DDR3 @ 800 MHz Storage – microSD slot Video Output – HDMI Audio In/Out – HDMI, SPDIF, Line In/Out. USB – 2x USB 2.0 Host, 1x USB 3.0 host and 1x USB 2.0 device Ethernet – Via USB to Ethernet hub. SATA – The connector is on the left of the micro SD slot. Expansions – 3 headers. Dimensions – 85 x 95 mm This board is based on Arndale design, and will be software compatible. Currently, Arndale officially support Android only, but […]

November 14, 2012 by Jean-Luc Aufranc (CNXSoft) - No Comments

Samsung Exynos 4412 (Origen 4 Quad Board) Open Source Development Schedule

If you’ve got an Exynos 4412 development board such as Hardkernel ODroid-X or Insignal Origen Quad, or even other devices based on Exynos 4412 such as the Samsung Galaxy S3, you may be interested to know the open source development schedule for the platform as show below (Source: Origenboard.org). Samsung already released the source code for Samsung Galaxy S3 in June, but this should add more recent drivers and support for more peripherals. The stable release should be available on the 21st of December 2012, but in the meantime, you could always pickup features earlier as they are being implemented. The code is available in http://git.insignal.co.kr/ (Git repository) and is maintained by both Insignal and Samsung. Jean-Luc Aufranc (CNXSoft)Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011. […]

November 14, 2012 by Jean-Luc Aufranc (CNXSoft) - No Comments

Android Jelly Bean 4.2 SDK, Source Code and Binary Images Are Now Available

As the Nexus 4 smartphone and Nexus 10 tablet became available for purchase yesterday, Google released Android 4.2 SDK for developers and pushed Android 4.2 to AOSP. The Android 4.2 (Jelly Bean) SDK platform (API level 17) brings the following key improvements: Performance – Renderscript computation can be run directly in the GPU on the Nexus 10. This is a first since Exynos 5250 is the first ARM processor capable of supporting GPGPU (via Mali-T604 GPU). See the chart of the right showing results between CPU and CPU+GPU computation of some multimedia benchmarks. Lock screen widgets – Users can now place interactive lock screen widgets directly on their device lock screens. This only requires a small update to adapt existing widgets to run on the lock screen. Daydream – An interactive screensaver mode that can be used when the device is charging or docked to a desk dock. Better external […]

October 30, 2012 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Google Unveils LG Nexus 4 Smartphone and Samsung Nexus 10 Tablet Running Android 4.2

Event though it had to cancel the media event due to bad weather, Google made several important announcements yesterday with the LG Nexus 4 Smartphone based on Qualcomm Snapdragon S4 and Samsung Nexus 10 tablet powered by the latest ARM Cortex A15 Exynos 5250 processor. The company also announced Android 4.2 (still called Jelly Bean) which will run on both devices. I’ll provide more details on the new features of the latest version of Android in a separate post. Let’s see what kind of hardware the Nexus 4 has to offer: CPU – Qualcomm Snapdragon S4 Pro @ 1.5 GHz (Quad Core) System Memory – 2 GB RAM Storage – 8 or 16 GB internal storage Display – 4.7″ IPS display (1280×768) Camera – 8MP rear and 1.3 MP front cameras. Connectivity – Wi-Fi 802.11 b/g/n, NFC (Android Beam) and Bluetooth Mobile Network – Unlocked GSM/UMTS/HSPA+, GSM/EDGE/GPRS (850, 900, 1800, […]