embedded

Posted on by Jean-Luc Aufranc (CNXSoft) - 7 Comments on ARM Introduces Mali-470 GPU for Wearables, IoT and Embedded Applications

ARM Introduces Mali-470 GPU for Wearables, IoT and Embedded Applications

Mali-400 was announced in 2008, and since then has been used in various SoCs for smartphone, but now it’s mostly replaced by Mali-450 GPU in low cost mobile and STB SoCs, although Mali-400 is still being implemented in new SoCs such as Rockchip RK3128 processor. ARM has been working on a lower power version of the GPU, and just unveiled Mali-470 GPU targeting wearables, as well as embedded and IoT applications. Mali-470 GPU is said to use the same memory and AMBA interfaces as Mali-400, while keeping some of the improvements brought to Mali-450 GPU, and further lowering power consumption to just half of that Mali-400 in terms of mW per frames per second. Just like its predecessors, Mali-470 supports OpenGL ES 2.0, and like Mali-400 it will scale from 1 to 4 fragment processor, always combined with one single vertex processor. Mali-470MP1 is likely to be used in wearables […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 1 Comment on AMD Announces ARM and x86 pin-to-pin Compatible APUs and SoCs for 2015, ARM K12 Core for 2016 and Beyond

AMD Announces ARM and x86 pin-to-pin Compatible APUs and SoCs for 2015, ARM K12 Core for 2016 and Beyond

AMD has designed x86 processor since its inception, and recently they’ve announced ARM Cortex A57 “Seatlle” SoCs targeting servers would be available later this year. They’ve now decided to merge their product line-up even further with Project Skybridge that aims to provide pin-to-pin compatible ARM and x86 SoCs and APUs by 2015, manufactured using a 20nm process. That means AMD’s customers should be able to leverage AMD’s “ambidextrous computing” solutions to design one and only board for x86 and ARM processors for server, embedded, semi-custom and ultra-low power applications. Processors of the “Project Skybridge” family will also be the first ARM based AMD processors to include a GPU (Graphics Core Next GPU), contrary to Seatlle SoCs, which are destined to be used for the server market, and do not come with a GPU. ARM processor will be based on low power ARM Cortex A57 cores and x86 processors will make […]

Posted on by Jean-Luc Aufranc (CNXSoft) - No Comments on Texas Instruments OMAP 5 Cortex A15 Systems-on-Module Galore

Texas Instruments OMAP 5 Cortex A15 Systems-on-Module Galore

Today Texas Instruments published a press release to announce partners 6 company had worked to design and manufactures systems-on-module based on the dual core Cortex A15 OMAP 5 SoC and that those would be on display at Electronica Trade Faire this week (13-16 October) in Munich. Embedded++ EPP-Pico-OMAP5430 This solution is actually a Pico-ITX board based on OMAP5430 with 2 GB LP-DDR2, USB 3.0 SuperSpeed connectivity (1x USB 3.0, 3x USB 2.0),  up to 16 GB eMMC storage, a SATA port, a 100Mb Ethernet port , UART, RS-323 & SPI ports, GPIOs, DVI and LVDS outputs, a serial camera input port, a micro SD card socket, Murata WiLink 8.0 connectivity solution (Wi-Fi, GNSS, Bluetooth®, Bluetooth v4.0 and FM technologies) and a built-in battery charger (1-cell Li-Ion). The company provides Linux and Android 4.1 BSP. Check the product page for a few more details. GreenBase GK-5432 GK-5432 is a computer on […]

Posted on by Jean-Luc Aufranc (CNXSoft) - No Comments on Embedded Linux Quick Start / Tutorial Videos

Embedded Linux Quick Start / Tutorial Videos

Free Electrons recorded some videos from the Embedded Linux Conference Europe, in Cambrigde, United Kingdom on October 2010 by Chris Simmonds, the founder of 2net Limited, a UK company providing training, consultancy and custom software for Linux and other embedded platforms. The videos can either be downloaded in webm HD format at http://free-electrons.com/blog/elce-2010-tutorial-videos/ or you can watch them in HD format below. The PDF slides for the three parts and the lab notes are available at http://elinux.org/images/c/cc/Linux-quick-start.tar.gz The first video (53 minutes) deals with the following key points: Genesis of a Linux project The four elements: Tool chain; boot loader; kernel; user space Element 1: Tool chain Element 2: Boot loader The second video (1h19m) focuses on: Third element: Kernel Fourth element: User space The last video (1h07m) is more practical as it shows how to use embedded Linux on an NXP LPC3250 Stick (ARM9): Description of the hardware Installing […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 1 Comment on D-link Boxee Box available for pre-order

D-link Boxee Box available for pre-order

D-link Boxee set-top-box is available for  pre-order on amazon for 199 USD. It can only be pre-ordered to addresses in the US for now and shipments should start in November. D-Link disclosed that its device is based on an Intel Atom processor CE4100 (Sodaville), not an ARM or MIPS processor as many other STBs do. It is running on embedded Linux. Key features listed by D-Link for the device (beside its weird shape) are basically those of the Boxee media-streaming software on which it’s based: Enjoy thousands of shows available for free from your favorite networks, ready to watch at any time Check-out free movies from the web & watch new releases in stunning HD from premium movie services Play videos, songs, or pictures from your computer or home network Plays any non-DRM video, music, and photos and media from anywhere on the Internet The device features the following input/output and […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 2 Comments on Embedded Software Books

Embedded Software Books

I’m often asked what useful books software engineers should read when they start to work on embedded systems. So here’s a list of books I would recommend as starters. First, nowadays many embedded systems are written in C (although lower end systems using 8-bit MCU are still likely to be written in Assembler), so software engineers had better make themselves very familiar with C/C++ and GNU tools (gcc, libtool. automake…) with a focus on embedded systems (e.g. interrupts handling, real-time capabilities, volatile variables, processes and threads’ stack handling, , cross compilers…).  Programming Embedded Systems: With C and GNU Development Tools, 2nd Edition is just the right book for that purpose. It deals with embedded Linux and eCos and provides useful examples. You may also read part of it online Once you start developing embedded systems you are likely to write device drivers at some points. Linux Device Drivers, 3rd Edition […]

Posted on by Jean-Luc Aufranc (CNXSoft) - No Comments on Enabling swap in embedded systems

Enabling swap in embedded systems

If your embedded system running Linux does not have enough memory, you can enable swap to get more memory. However if your platform does not have MMU (Memory Management Unit) as is the case for Sigma Designs EM8620 series, it won’t support swap, so forget it. If your platform does have MMU, as is the case for many newer platforms such as Sigma Designs SMP8630, SMP8640 and SMP8650 series, you can enable swap support. First you’ll have to make sure swap support is enabled in your kernel:

and swapon/swapoff is enabled in busybox. So for example if you have an IDE harddisk with the second partition configured as swap. (Use fdisk to create a partition and mkswap /dev/hda2 to initialize the partition), you can enable the swap as follows:

If you get out-of-memory killer kernel error, you can change the “swapiness” to avoid oom-killer to kick in.

[…]

Exit mobile version
UP 7000 x86 SBC