Author: 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 later in 2011.
Posted on by Jean-Luc Aufranc (CNXSoft) - 3 Comments on Crystal Board Combines Rockchip RK3188 ARM SoC with Xilinx FPGA and Arduino Compatible Board (Crowdfunding)

Crystal Board Combines Rockchip RK3188 ARM SoC with Xilinx FPGA and Arduino Compatible Board (Crowdfunding)

Red Crystal, a German startup, has just introduced the Crystal Board, a 3-in-1 development board with Rockchip RK3188 SoC running Linux or Android, an Arduino UNO compatible board, and a Xilinx Spartan-6 FPGA. The concept is a similar to the UDOO board, but adds an FPGA. The company has launched a Kickstarter campaign to gather funds to manufacture the Lite and Pro versions of the board for respectively $149 and $179. Crystal Board specifications (Lite and Pro versions): SoC – Rockchip RK3188 ARM Cortex-A9 quad core up to 1.8Ghz + Mali-400 MP4 GPU MCU – Atmel Atmega328 SMD FPGA – Xilinx Spartan6 XC6SLX9 with 9152 logic cells System Memory – 2GB DDR3 @ 1066MHz (1GB DDR3 @ 1066MHz for Lite version) Storage – micro SD card slot, SPI flash Video Output – HDMI 1.4 Connectivity: 10/100M Ethernet port Wi-Fi  802.11b/g/n with antenna. Dual band for Pro version, 2.4GHz band for […]

Posted on by Jean-Luc Aufranc (CNXSoft) - No Comments on Opus Open Source and License-free Audio Codec Decreases Latency over VoIP Codecs, (Slightly) Betters MP3 and AAC Quality

Opus Open Source and License-free Audio Codec Decreases Latency over VoIP Codecs, (Slightly) Betters MP3 and AAC Quality

I’ve just stumbled upon Opus, a relatively new audio codec, with the release of version 1.1 implementation which  improves encoding quality for VBR audio, automatically detect audio or speech to select the best encoding mode, and improved 5.1 surround quality/compression ratio. The new release also bring speed improvements for all architectures, and specifically for ARM, where decoding uses around 40% less CPU and encoding uses around 30% less CPU thanks to the use of NEON compared to an earlier version. You can go to the online demo page to find more about the latest released, and try some of the latest improvements. This all looks fun, but I wanted to know more about Opus, and especially how it compares against MP3 or AAC. It turns out Opus was not originally designed to compete against MP3/AAC which are used to store audio, but instead it was meant to be used for […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 8 Comments on AIRTAME is a Wi-Fi Display HDMI Dongle for Windows, Linux, and Mac (Crowdfunding)

AIRTAME is a Wi-Fi Display HDMI Dongle for Windows, Linux, and Mac (Crowdfunding)

Earlier today, I wrote about Tronsmart T1000 Mirror2Tv, a $30 Wi-Fi Display adapter that can mirror the display from Android, iOS, and Windows devices and computers to your HDMI TV via Wi-Fi, and I’ve been informed a somewhat similar device called AIRTIME had a very successful Indiegogo campaign albeit selling for over $100 including shipping, and with shipping expected for May 2014, so I decided to have a closer look. AIRTIME specifications have not been fully release, but we still get some information: Processor – ARM @ 1GHz System Memory – 512MB RAM Wi-Fi – 802.11 b/g/n Video Output – HDMI 1.4 with CEC and MHL – Up to 1080p resolution Audio – 2 channel stereo with variable bit rate, work in progress for surround sound 5.1 support USB – 1x micro USB for power, 1x USB host port for accessories Power Consumption – About 500ma @ 5V via MHL […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 10 Comments on Tronsmart T1000 Mirror2TV EZCast, Miracast, Airplay, DLNA HDMI Dongle Sells for $29.99

Tronsmart T1000 Mirror2TV EZCast, Miracast, Airplay, DLNA HDMI Dongle Sells for $29.99

There has already been several dongles released to the mark that support Miracast, Airplay, and DLNA, either a subset, or a combination of the standards. One of the cheapest is iPush that now sells in the low $20, but there are different models, and one of them is only supporting DLNA. A couple of months later, EZCast was released with support for DLNA, as well as Miracast and Airplay (with some limitations), and their own EZCast support. EZCast is supported on several hardware dongles that often sell for about $35 to $45, and although it’s not outrageously expensive, you can get full single or dual core Android HDMI TV for this price. I’ve just come across a new product called Tronsmart T1000 Mirror2TV sold for $29.99 including shipping by GeekBuying, and a couple of sellers on Aliexpress, that appears to be another EZCast dongle with support for Miracast, Airplay, and DLNA. […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 1 Comment on Practical Applications and Benchmarks of GPU Computing via RenderScript and OpenCL with ARM Mali-T6XX GPU

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 […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 2 Comments on $27 Plugaway Wi-Fi Smart Sockets Support Australia, China, Europe, U.K. or U.S. Standards (Crowdfunding)

$27 Plugaway Wi-Fi Smart Sockets Support Australia, China, Europe, U.K. or U.S. Standards (Crowdfunding)

Until now, Broadlink SP1 was the cheapest ($32) Wi-Fi smart socket I found. It supports Australian and Chinese plugs, and Android and iOS smartphones. The two main downsides is that the application is in Chinese by default (English can be installed via a firmware upgrade), and although the top of the socket support international plugs, the plug of the device only support Australian / Chinese standard, and you may need an adapter to connect the device to your wall socket. There’s now a similarly priced option in Kickstarter called Plugaway that supports Australia, China, Euro, U.K. or U.S. standards, can measure power consumption, dim lights, and comes with Android and iOS apps, with Windows planned for a future release. Specifications: MCU – Atmel ATmega128 up to 16MHz with 128 KB flash Wi-Fi – Marvell 88W8686 Wi-Fi 802.11 b/g chip, to be upgraded to support 802.11n for longer range Current sensor […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 5 Comments on Marvell Unveils ARMADA 1500 Plus (88DE3108) SoC for Android and Linux Smart Video Platforms

Marvell Unveils ARMADA 1500 Plus (88DE3108) SoC for Android and Linux Smart Video Platforms

Building on top of it ARMADA 1500 SoC for Google TV, Marvell has recently announced the ARMADA 1500 Plus (88DE3108) HD secure media processor SoCdesigned for smart video products based on Android 4.2.2, and Linux, such as media players, OTT boxes, hybrid set-top boxes and smart TVs. ARMADA 1500 Plus features two ARM Cortex A9 cores, Vivante GC1000 and GC300 GPUs, respectively for 3D and 2D graphics,  and integrates an HDMI receiver and Gigabit Ethernet. Hisense will be among the first to use the platform with the upcoming H6 Smart TV and Pulse Pro set-top-box, but details have yet to be released for these two products. Here are the key features of 88DE3108 SoC: Processor – Dual core Cortex A9 with over 6000 Dhrystone MIPS Dedicated 3D and 2D graphics acceleration – dual threaded unified shader (Vivante GC1000 and GC300) with support for OpenGL ES 1.1/2.0 and DirectFB. Video vMeta […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 24 Comments on How-to Install and “Hack” Linux on T428 or MK802 IV mini PCs

How-to Install and “Hack” Linux on T428 or MK802 IV mini PCs

PicUntu 4.5 installer is probably the easiest method to install Ubuntu on a Rockchip RK3188 based mini PC, but if you want a little more flexibility I’ll provide another method to install Linux on T428, MK802 IV or compatible devices, as well as links to go further: dual boot Android / Linux, create your own official distro, status of Mali-400 GPU support in RK3188… The method below is not new, as it was posted by Linuxium (Ian Morrison) in Freaktab in September, but this is the first time I’ve taken the time and managed to run Linux on Rockchip RK3188, and I’ll provide some more detailed steps. Prerequisites Even though in some cases it’s possible to install Rockchip firmware from Linux, AFAIK the tools available in Linux lack supports for the parameter and loader files, so ironically, you’ll need a Windows XP/7/8 machine to install Linux in your mini PC. […]