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August 28, 2014August 29, 2014 by Jean-Luc Aufranc (CNXSoft) - 10 Comments

Samsung Exynos 7 ARM Cortex A57 Processor Linux Code Submitted

Samsung has not announced any 64-bit processor yet, but according to a recent patchset Exynos 7 may be their first 64-bit ARM SoC, and it will be based on the faster Cortex A57 cores. A quick way to learn a little more is to check the device tree file (exynos7.dtsi). Here’s an interesting snippet:

+	cpus {
+		#address-cells = ;
+		#size-cells = ;
+
+		cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a57", "arm,armv8";
+			reg = ;
+		};
+	};

+ cpus {

+ #address-cells = ;

+ #size-cells = ;

+ cpu@0 {

+ device_type = "cpu";

+ compatible = "arm,cortex-a57", "arm,armv8";

+ reg = ;

+ };

As it stands, Exynos7 would be a single core Cortex A57 processor. This sounds unlikely that a company would launch a single core processor at this stage, so it’s probably early code that may not support all cores just yet. We also know Samsung uses ESPRESSO board for development with Samsung Exynos 7 processor and 3 GB RAM. Thanks to David for the tips. 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 […]

August 21, 2014May 29, 2017 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Embedded Linux Conference Europe 2014 Schedule – IoT, ARM vs x86, Optimization, Power Management, Debugging…

The Embedded Linux Conference Europe (ELC 2014), CloudOpen, and LinuxCon Europe will jointly take place at the Congress Centre Düsseldorf, in Germany on October 13 – 15, 2014. The 3-day events will consists of keynotes, presentations, and tutorials. Each day will open with two or three keynotes by speakers including Jim Zemlin (Executive Director, Linux Foundation), and Jono Bacon (XPRIZE), followed by presentation and tutorials. There will be 45 presentations for ELCE, 58 for LinuxCon, and 47 for CloudOpen, I’ll make a virtual schedule with a few sessions part of the Embedded Linux Conference Europe “track”. Monday, October 13 11:15 – 12:05 – Performance Analysis Using the Perf Suite by Mans Rullgar, Consultant When faced with a performance problem, the initial steps towards a solution include identifying the sections of code responsible and the precise reasons they are time-consuming. To this end, the ‘perf’ profiling tools provide valuable insight into the […]

August 14, 2014August 14, 2014 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

Samsung Announces Exynos 5430 SoC, Manufactured with 20nm Process

Samsung already have a few octa-core big.LITTLE SoCs part of Exynos 5 Octa family with Exynos 5410, Exynos 5420, and Exynos 5422/5800, all based on 28nm process. The company has just announced a new Exynos 5 Octa processors with Exynos 5430, but this time manufactured using 20nm High-K Metal Gate (HKMG) process technology providing 25% less power consumption compared to 28nm Exynos SoCs. Exynos 5430 SoC will feature four ARM Cortex A15 cores at 1.8 GHz, four Cortex A7 cores at 1.3 GHz, supports WQHD (2560×1440) and WQXGA (2560 x 1600) displays using hibernation display and Mobile Image compression (MIC) in order to lower power consumption. It also said to support HDMI, come with a Multi Format Codec (MFC) supporting HEVC/H.265 decoding, as well as an enhanced dual ISP, and up to 17GB/s of memory bandwidth. That’s about all the information I could get at this point. The CPU core […]

August 1, 2014 by Jean-Luc Aufranc (CNXSoft) - No Comments

Linaro 14.07 Release with Linux Kernel 3.16 and Android 4.4

Linaro 14.07 has just been released with Linux Kernel 3.16-rc6 (baseline), Linux Kernel 3.10.50 (LSK), and Android 4.4.4. This month, Linaro has continued development on Juno 64-bit ARM development board, as well as other member boards from Broadcom (Capri), Qualcomm (IFC6410), Hisilicon D01, Samsung (Arndale / Arndale Octa), etc.. Android have been upgraded to version 4.4.4 with images released for Pandaboard, Arndale, Nexus 10, and Nexus 7, built with Linaro GCC 4.9. Here are the highlights of this release: Linux Linaro 3.16-rc6-2014.07 released GATOR version 5.18 (same version as in 2014.04) updated basic Capri board support from Broadcom LT. Good progress in upstreaming the code: now the topic has 21 patch on top of v3.16-rc4 vs 53 patches on top of v3.15 in 2014.06 cycle removed cortex-strings-arm64 topic as the code is accepted into the mainline new topic from Qualcomm LT to add IFC6410 board support updated Versatile Express ARM64 […]

July 21, 2014July 21, 2014 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

Thread is a New IP-based Wireless Protocol Leveraging 6LoWPAN and 802.15.4 Standards

Wi-Fi is a neat way to connect devices to Internet, but it has two main inconveniences: relatively high cost and power consumption. Luckily there are standards that addresses the cost and power consumption issues. Radio chips based on IEEE 802.15.4, a standard which specifies the physical layer and media access control for low-rate wireless personal area networks, are common place and found in many existing devices relying on higher level wireless protocols such as ZigBee, ISA100.11a, WirelessHART, and MiWi. AFAIK, Zigbee is the most popular of the aforementioned protocols, but is hindered by the requirements of the license for commercial products (annual fee), Zigbee membership requirements conflict with many open source license such as GPL, and the standard suffers from lack of interoperability and IPv6 support, and power requirements that are too high for some applications. So a consortium of seven companies namely ARM, Big Ass Fans, Freescale, Nest, Samsung, […]

June 26, 2014June 26, 2014 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Google Releases Android Wear SDK, LG G Watch and Samsung Gear Live Smartwatches Are Now Available

I’ve just covered what’s new in Android L?, and I’m going to focus on Google I/O 2014’s announcements related by Android wear starting with hardware with LG G Watch ,and Samsung Gear smartwatches, followed by some details about the first official release of Android Wear SDK. LG G Watch Specifications: SoC – Qualcomm Snapdragon 400 @ 1.2 GHz System Memory – 512MB RAM Storage – 4GB eMMC Display – 1.65” IPS display (280 x 280) Connectivity – Bluetooth 4.0 LE Sensors – 9-Axis (Gyro / Accelerometer / Compass) IP Rating – IP67 dust and water resistant Battery – Li-ion 400mAh Dimensions – 37.9 x 46.5 x 9.95 mm Weight – 62.5 grams LG G watch will run Android Wear (as it’s the subject of this post), and it currently available on Google Play for $229 (US only?) with shipping scheduled for early July. Samsung Gear Live Specifications: Processor – Unnamed […]

June 12, 2014June 12, 2014 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Meet Samsung Smart Bike fitted with an Arduino, a Rear Camera, Lasers and More

Samsung Maestros Academy has introduced a Smart Bike prototype integrating various “smart” components within its aluminum frame, such as an Arduino board connected to a Wi-Fi + Bluetooth module, a battery, four laser projectors, and a digital camera controlled by a Samsung smartphone. The camera is fitted at the back just under the seat, and allows the riders to have a real-time rear view image on the phone. The four lasers are used to create a virtual bike lane in case a real one is missing, and remind other drivers to keep a safe distance to your bicycle. The bike can also detect ambient conditions using the smartphone sensors, and modify its behavior. For example, it can switch on or off the laser beams depending on the brightness sensor data from the smartphone. Each bike also tracks daily routes of the riders using GPS, and can let local authorities know where bicycle traffic is most intense, and […]

June 2, 2014 by Jean-Luc Aufranc (CNXSoft) - No Comments

Meet Samsung Z, the First Tizen Smartphone

After many delays, even rumors that Tizen was dead, Samsung has finally announced the very first commercially available smartphone running Tizen mobile operating system with the Samsung Z, right before the Tizen Developer Conference which will take place in San Francisco, on June 2-4, 2014. Let’s go through the hardware specs first: SoC – Qualcomm SnapDragon 800 quad core application processor @ 2.3GHz System Memory – 2GB RAM Storage – 16 GB flash + micro SD card slot (Up to 64GB) Display – 4.8” HD Super AMOLED (1280 x 720) Camera – 8MP(rear), 2.1MP (front) Cellular Network – LTE Cat.4 (150/50Mbps) Connectivity – WiFi 802.11 a/b/g/n HT40, MIMO(2×2), Bluetooth 4.0 BLE, NFC, GPS / GLONAS USB – micro USB 2.0 Misc – IR sensor Sensors – Accelerometer, gyro, proximity, compass, barometer, Hall, RGB ambient light, fingerprint scanner, heart rate sensor Battery – 2600mAh Dimensions – 138.2 x 69.8 x 8.5mm […]