CNX Software - Embedded Systems News

January 17, 2013 by Jean-Luc Aufranc (CNXSoft) - No Comments

Yocto Project Overview and Update – ELCE 2012

Last post about ELCE 2012 videos… David Stewart, manager of the Yocto Project team within the Open Source Technology Center at Intel, gives an introduction to the Yocto Project, as well as a status update at ELCE 2012. Abstract: The Yocto Project is a joint project to unify the world’s efforts around embedded Linux and to make Linux the best choice for embedded designs. The Yocto Project is an open source starting point for embedded Linux development which contains tools, templates, methods and actual working code to get started with an embedded device project. In addition, the Yocto Project includes Eclipse plug-ins to assist the developer. This talk gives a walk-through of the key parts of the Yocto Project for developing embedded Linux projects. In addition, features will be described from the latest release of the Yocto Project, v1.3. The talk will include demos of some of the key new […]

January 17, 2013January 17, 2013 by Jean-Luc Aufranc (CNXSoft) - No Comments

Video4Linux: Current Status and Future Work – ELCE 2012

Hans Verkuil, R&D software engineer at Cisco Systems Norway, talks about Video4Linux status, progress, and plans at the embedded Linux Conference in Barcelona, Spain, on November 7, 2012. Abstract: Video4Linux is a fast-changing subsystem where a lot of work is done to support the complex video hardware of embedded systems. This presentation will give an overview of the developments in the past year and the work that is planned for the near future. Hans covers SoC video devices support, core, control, and videobuf2 frameworks, HDTV timings & events API, video connector support, media controllers, codec & flash support, and more… You can also download the slides for this presentation. For further details about development, subscribe to linux-media mailing lists or chat on #v4l IRC channel on freenode.

January 17, 2013 by Jean-Luc Aufranc (CNXSoft) - No Comments

LTSI (Long-Term Stable Initiative) Status Update – ELCE 2012

Tsugikazu Shibata, chief manager of OSS promotion center at NEC, gives a status update for LTSI, an LTS kernel for the consumer electronics market at ELCE 2012. Abstract: LTSI (Long-Term Stable Initiative) had been established October 2011 as an activity of CE Working Group of The Linux Foundation. LTSI will maintain Linux kernel for long term and stable for use of Consumer Electronics industry to share common cost and also help industry engineers to merge their patches into upstream. This talk will update latest status of LTSI project and discuss about next step such as how the development process going on and what version of Linux kernel will be maintained for long term and stably use. This talk will be intended to provide information for managers and engineers in the embedded industry and not necessary to have specific knowledge. Agenda of the talk: Status of Linux kernel development and maintenance […]

January 17, 2013January 17, 2013 by Jean-Luc Aufranc (CNXSoft) - No Comments

UBI Fastmap – ELCE 2012

Thomas Gleixner, Linux kernel programmer at Linutronix, talks about UBI flash management layer, and fastmap implementation to speed up boot times at the Embedded Linux Conference Europe, on November 7, 2012. Abstract: UBI is a flash management layer in the Linux kernel designed to handle especially the shortcomings of NAND flash. UBI itself has the requirement to scan the full flash at boot time. With flash sizes becoming larger and larger this can take quite some time. A recent development implemented fast mapping functionality which is designed to put an upper bound on the number of flash eraseblocks to scan. This allows faster boot times without sacrifying the robustness of UBI. This talk gives an overview of the UBI fastmap design and looks at costs and benefits. The talk provides an overview of UBI and its shortcomings, and explains UBI fastmap implementation in details showing it provides significant speedup proportional […]

January 17, 2013January 17, 2013 by Jean-Luc Aufranc (CNXSoft) - No Comments

Debugging Embedded Linux (Kernel) Power Management – ELCE 2012

Tero Kristo, Linux kernel developer at Texas Instruments, explains how to debug power management in Embedded Linux at ELCE 2012. Abstract: The presentation will talk about debugging various problems a kernel developer can face when working with power management. These include hardware related issues (IC / HW layout bugs, bad documentation) and software related (kernel bugs, driver problems, adding new kernel features, bad userspace behavior.) Along with presenting some of these problems, I will discuss about ways to debug these… power management typically requires specific tools to be used. I will base the discussion on my first hand experience from working with Linux PM. Target audience is (kernel) software developers interested in power management. The presentation is divided into 3 sections: Debugging tools / methods for PM Disabling kernel features Stress testing Tracing (printk / low level UART) GPIO / LED trace Debugger Buffered traces / statistics with trace-cmd & […]

January 16, 2013 by Jean-Luc Aufranc (CNXSoft) - No Comments

ARM 64-Bit Bootstrapping with OpenEmbedded – ELCE 2012

Marcin Juszkiewicz, software engineer at Canonical, explains how ARMv8 was bootstrapped with OpenEmbedded with fast model simulation at the Embedded Linux Conference in Barcelona on November 7, 2012. Abstract: The time has come – there is ARM 64-bit architecture right behind a corner. In this talk I will present how OpenEmbedded was used to build root filesystem for fast models simmulating not-yet-existing hardware. Presentation is targeted at developers interested in cross compilation, handling new architectures in existing projects. Agenda of the talk: Introduction to Aarch64 – aka arm64 or ARMv8, the new 64-bit version of the ARM architecture Introduction to OpenEmbedded – Build system capable to build everything from package to whole distribution with repositories First steps: Create own layer for AArch64 stuff Adding basic support into OE classes Machine definition Toolchain – Based on gcc 4.7 + ARM patches Build results – As of October 2012, 800 packages have […]

Rockchip RK3568/RK3588 and Intel x86 SBCs

January 16, 2013 by Jean-Luc Aufranc (CNXSoft) - No Comments

Qt on Embedded Systems – ELCE 2012

Lars Knoll, chief maintainer for the Qt Project, gives a presentation about Qt on embedded systems, including a demo with the Raspberry Pi at the Embedded Linux Conference Europe 2012 in Barcelona, Spain. Abstract: For well over 10 years, Qt has been used in many types of embedded devices, ranging from high-end medical systems, through mobile phones and smartphones, all the way to simple devices like coffee makers. This presentation will show some of the work that has been put in Qt throughout the years to support embedded devices, some of the challenges that the development team faced in order to bring a fully-featured desktop toolkit to resource-limited devices, along with solutions they came up with. Time permitting, the presenter will also show Qt demos running on an embedded device. This session is intended for embedded application developers looking to make use of the capabilities of recent hardware, as well […]

January 16, 2013January 19, 2013 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

DaVinci Movile Kite Full-HD Tablet Boots Android and Ubuntu

DaVinci Mobile, an Italian company, has just announced a Samsung Exynos 4412 quad core tablet running Android 4.0 (ICS) and Ubuntu 12.04 Precise that should sell for 373 Euros in Italy, or just 29 Euros with a subscription. The specifications of this tablet are as follows: SoC – Samsung Exynos Quad-Core Cortex A9 processor @ 1.4 Ghz + Quad-Core Mali-400MP GPU System Memory – 2GB DDR3 Storage – 32GB flash + microSD card socket Display – 10.1 “IPS Multi-touch Capacitive Panel (1920×1200) with a viewing angle of 178 ° Connectivity Wi-Fi – 82.11 b/g/n Bluetooth 4.0 GPS- A-GPS Sensors – Gyroscope Camera – VGA front camera, 2.0 MP rear camera USB – miniUSB port Audio I/O – 3.5 mm jack for headphones Battery – 5400mAh 3.7V Weight – 539g Dimensions – 258.3x164x9.5mm The hardware specifications appear to perfectly match Ramos W30HD tablet, sold for less than $300 on Chinese websites […]

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