If you’ve been following Linaro work, you may have read they develop big.LITTLE processing on TC2, a Test Chip based on 2 Cortex A15 cores and 3 Cortex A7 cores. Charbax is at ARM Techcon 2012 and he shot an interesting video showing 2 Versatile Express development boards based on TC2 demonstrate different big.LITTLE processing schedule strategies: The first scheduling strategy switches between Cortex A15 and Cortex A7 depending on the load required. The second scheduling strategy makes use of 5 cores at the same time and runs high load tasks on the Cortex A15 cores whereas simpler tasks are run on Cortex A7 core. This is only available on Android and Linux and the moment. TC2 is an actual silicon (not FPGA), and as they opened the casing of the development kit (Around 5:00 in the video), you’ll see a fan to cool down the SoC as it is one of the first versions and may not be fully […]
Last year, OLPC (One Laptop Per Child) announced their first laptop powered by ARM, with OLPC X-1.75 powered by Marvell ARMADA 610 single core processor (And sold over 100,000 since Q1 2012). The 2 new models – OLPC XO-4 and OLPC XO-4 Touch – will be upgraded to ARMADA PXA2128 triple core processor (2 ARMv7 Core + 1 Hybrid LPM (Low Power Mode) ARMv7 core), which the OLPC XO-4 Touch offering multitouch support. OLPC XO-4 laptop will look exactly like the OLPC 1.75 laptop pictured below. OLPC XO-4 will have the following specifications: SoC – Marvell PXA2128 (ARMv7 compatible) @ 1 GHz with Vivante GC2000 GPU System memory – 1GB or 2GB DDR3 RAM (Depending on configuration) Mass storage: 4 GB or 8GB NAND flash (eMMC) Internal microSD card slot for repair/replacement Externally accessible SD card slot; Display – 7.5” dual-mode TFT display with touchscreen (2 simultaneous touch max) Audio – Internal stereo speakers and amplifier, internal monophonic microphone, jacks […]
You’ve probably heard about the ODROID-X development board announced in July by Hardkernel. They now have an updated version called ODroid-X2 with Samsung Exynos 4412 clocked at 1.7 GHz (vs 1.4 GHz) and 2 GB RAM (vs 1 GB RAM for the first version). They also boosted the Mali 400 clock speed from 400 MHz to 533 MHz. Apart from being a good mobile development platform, the 2 GB RAM could make the board a pretty good native ARM build machine under Ubuntu, as I’ve read 1 GB RAM is not always enough at link stage (e.g. for Debian packages, sorry I can’t find the link), unless you use swap which tremendously slows things down. The rest of the board seems identical and it just looks the same as the first version. Charbax shot a video of Hardkernel ODroid-X2 development board at ARM Techcon 2012: ODroid-X2 will cost $149 (ODroid-X costs $129) and be available at the end of November. […]
ARM Techcon 2012 started yesterday with a major announcement, as ARM unveiled the ARM Cortex A50 series, the first 64-bit ARM Core based on ARMv8 architecture. The company announced 2 cores that can be used independently or in combination to take advantage of big.LITTLE processing: Cortex-A57 – 64-bit core that offers 3x the performance of 2012 superphone in 32-bit, 5x power-efficiency and is scalable beyond 16 cores. It’s the big core in big.LITTLE. Cortex-A53 – 64-bit core that offers the same performance as Cortex A9 but with 4x power efficiency and 25% the size of today CPUs. It’s the LITTLE core in big.LITTLE. Those cores manufactured using 28nm, 20nm and eventually 14nm process technology will be used in smartphones, tablets. mobile computers and servers (See AMD/ARM announcement). They’ll be software compatible with ARMv7-A processors (Aarch32) which should greatly facilitate the transition and support both 64-bit and 32-bit OS and applications, although obviously 64-bit apps won’t run on 32-bit OS. Engadget […]
ARM Technology Conference (TechCon) 2012 will take place on October 30 – November 1, 2011, in Santa Clara, and UBM Electronics has already posted the detailed schedule for the event. The first day (October 30) will be Chip Designs day and the other 2 days will focus on Software & System Design. Even if, like me, you are not be able to go there, it’s still interesting to know what will be discussed at the conference, to have a better idea where ARM is going, and what new technologies and/or development techniques are (or will become) available. There will be around 70 sessions categorized in 15 tracks: Android / Open Source – Development tools, middleware for native application development, and optimized drivers for Android, Linux, FreeRTOS etc … Compute Platforms – Development and implementation of standards and specifications, from board/module design to consumer and server designs Developing / Debugging – Programming and debugging for ARM, power optimized software across multicore […]
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