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December 18, 2013December 18, 2013 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

Fedora 20 “Heisenbug” Release Makes ARM a Primary Architecture

Fedora has been supporting ARM architecture for a while now, but it was only as a secondary architecture without official support. With the recent Fedora 20 release, nicknamed “Heisenbug”, the ARM architecture, more exactly ARMv7 hard float and greater, is promoted to a primary architecture meaning ARMv7 will have the same status as x86 and x86_64 architectures with packages officially build and supported by the Fedora community. What it does not mean however, due to the nature of ARM architecture, is that you can simply download an ISO to install on any ARM platforms, like you would do on an Intel or AMD computer. It’s a little more complicated than that, as it is platform specific, but instructions are available for the Beaglebone Black, Compulab Trimslice, the Wandboard, Calxeda Energycore Midway and Highbank, and Versatile Express in QEMU. You can download images with MATE, KDE, XFCE, LXDE, SOAS desktops, as […]

December 10, 2013September 28, 2018 by Jean-Luc Aufranc (CNXSoft) - 9 Comments

Most Embedded GPUs Do NOT Support Hardware Video Decoding Acceleration. The VPU Does.

Many people seem to get confused with the actual function of GPUs used in embedded (ARM / MIPS) SoC, and I can often read comments similar to “with lima drivers we should get video decoding in XBMc soon”, and I’ve just received any email reading “My main task is to build a full hd media player based on ffmpeg with hardware decoding acceleration for Linux. Is it possible with mali400mp4?”. So I’ve decided to write a short post about it to make things a bit more clear. Contrary to GPUs in the PC world, embedded GPUs only take care of 3D, and sometimes 2D graphics, and leave video encoding and/or decoding to another block called Video Processing Unit (VPU). There’s at least one exception with Broadcom Videocore IV GPU as found in the processor used in the Raspberry Pi that apparently takes care of 2D & 3D graphics as well […]

December 6, 2013December 6, 2013 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Practical Applications and Benchmarks of GPU Computing via RenderScript and OpenCL with ARM Mali-T6XX GPU

Since the announcement of ARM Mali-T604 in 2010, ARM has explained that GPGPU (General Purpose computing on GPU), aka GPU Compute, would be one of the key features of their new Mali graphics processor, and the company now expects GPGPU to become mainstream in embedded and mobile devices in 2014 and beyond. I’ve just come across a presentation by Roberto Mijat, technical marketing manager at ARM, entitled “Unleashing the benefits of GPU Computing with ARM Mali” which shows practical applications and use cases where the use of RenderScript, or OpenCL can make massive performance improvements, at much lower power consumption, over the same parallel tasks processed by the CPU only. Let’s have a look at some of the most interesting slides. GPU compute can be used for multiple applications in mobile, multimedia, and automotive sectors. GPU Compute for H.265 / HEVC HEVC aka H.265 is the next generation codec providing […]

December 2, 2013 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

Micro Python Brings Python to MCU Boards and Robots (Crowdfunding)

Micro Python is an implementation of the Python programming language, written from scratch and optimized to run on micro-controllers such as the ones based on ARM Cortex-M cores. Damien George, the developer, also designed the Micro Python board powered by STMicro STM32F405 Cortex M4 MCU for the purpose of running Micro Python. Even though in this project, the star of the show is not the board itself, as Micro Python will run on other platform once it’s open source, let’s have a look at the hardware specifications: MCU – STMicro STM32F405RG @ 168MHz with 1MB flash, 192KB RAM, and an FPU. External storage – Micro SD slot 30 general purpose I/O pins – 5 USARTs, 2SPIs, 2 I2C busses, 14 ADC pins, 2 DAC pins, 2CANs, and 4 servo ports with power. Built-in USB interface Misc – 4 LEDs, a user switch, a reset switch, a real-time clock, and a 3-axis […]

November 29, 2013 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Linux.Darlloz Worm Targets Embedded Linux Devices

Symantec has recently discovered a new Linux worm, called Linux.Darlloz, that targets Internet-enabled devices running Linux in addition to traditional computers. That means devices such as home routers, set-top boxes and security cameras could be at risk of infection, although no attacks against non-PC devices have been confirmed yet. The worm exploits an “old” PHP vulnerability, which was patched in May 2012 (PHP 5.4.3, and PHP 5.3.13), and currently only affects Intel (x86) based systems. So you’d need an embedded system powered by an Intel processor, running Linux and PHP to be at risk. Having said that, Symantec also explains code for other architectures such as ARM, PPC, and MIPS, is also present in the worm, and these systems could potentially be at risk too with small modifications. Here’s how the worm operates: Upon execution, the worm generates IP addresses randomly, accesses a specific path on the machine with well-known […]

November 24, 2013 by Jean-Luc Aufranc (CNXSoft) - No Comments

Faraday Technology SoCreative! IV Kit Facilitates Custom SoC Design and Software Implementation

Faraday Technology has unveiled “SoCreative! IV”, a SoC development kit based on Faraday A380 SoC featuring a dual-core ARM Cortex A9 processor, an ARMv5-compliant core developed by the company, and a high speed expansion bus for interfacing with FPGA daughtercards. A380 SoC has been designed for cloud infrastructure market, including networking, computing, and storage applications. The company has not listed the specifications, but here’s what I could derived from the picture above, and the info found on Linux Gizmos article. SoC – Farady A380 dual core Cortex A9 @ 1GHz, with ARMv5-compliant FA626TE RISC processor @ 500MHz, and 512MB L2 cache. BGA package (31x31mm), 40nm process. System Memory – 1GB DDR3-1600 RAM Storage – 4Gb NAND Flash (512MB), 128Mb of NOR flash, 64Mb of SPI flash, I2C EEPROM, and SD Card slot. Video Output – DSUB for 24-bit LCD I/F up to 1280×1280 Audio – Mic In, Audio In/Out, Audio […]

November 20, 2013November 21, 2013 by Jean-Luc Aufranc (CNXSoft) - No Comments

Free Online Courses & Workshops For ARM Cortex-M Microcontrollers

STMicroelectronics and Digikey are co-sponsoring an EE Times University online training course entitled “Fundamentals of Microcontrollers (MCUs): Hands-On Workshop”. The first two 45-minutes sessions will be theoretical and provide and overview of micro-controllers, and explain methods to select an MCU for a given project. The first 1,000 persons based in the US or Canada, who attended the first 2 sessions, will receive a free STM32F4 Discovery Board (ARM Cortex M4). The three next sessions, conveniently taking place about a week later, hopefully after you’ve received your board, will be an actual workshop with STM32F429 Discovery Board. Here’s the detailed schedule for the training: December 2, 2013, 12PM (Eastern Time) – Session 1 – Introduction to Microcontrollers Common microcontroller architectures Pipelining Peripherals: Timers, Communication, Analog December 3, 2013, 12PM (Eastern Time) – Session 2 – Selecting the Right Microcontroller 10 Steps to Selecting a microcontroller What to look for in a […]

November 12, 2013 by Jean-Luc Aufranc (CNXSoft) - No Comments

Tizen 3.0 Features & Tizen Lite Unveiled

We have just learned about NX300M camera, the first Tizen device, based on Tizen 1.0, but development of the new mobile operating systems is still going on, and the key features of Tizen 3.0, as well as Tizen Lite, Tizen for low-end hardware, have been unveiled at the Tizen Developer Summit on 11th of November 2013. Tizen 3.0 features: Update core OS and toolchain Multiple user support 64-bit Intel and ARM architecture support (New) 3D UI Framework with 3D rendering for 2D and 3D objects in 3D, and a dynamic animation library WayLand based compositor replacing X Crosswalk – HTML5 based application runtime based on Chromium/Blink Tizen 3.0 release is scheduled for Q3 2014, so the first Tizen smartphones and tablets which are expected for Q1 2014 will probably ship with Tizen 2.2.1, or even possibly with an earlier version. Android KitKat 4.4 has been optimized to run smoothly on […]