Jean-Luc Aufranc (CNXSoft), Author at CNX Software - Embedded Systems News

April 11, 2015 by Jean-Luc Aufranc (CNXSoft) - 7 Comments

Open Hour Chameleon RK3288 TV Box Gets (Partial) DTS-HD and Dolby TrueHD HDMI Pass-through Support

People owning AV receivers capable of outputting 7.1 channels or more have had a hard time finding Android TV boxes that supports HD audio pass-through via HDMI. Many devices can pass through 5.1 codec like DTS or Dolby Digital (AC3 / E-AC3), but so far, none of the boxes I’ve tried could manage content with DTS-HD (MA / HR) and Dolby TrueHD with 8 channels properly. The one that came close was Zidoo X9 with support for Dolby TrueHD 5.1 and 7.1, but it downmixes 7.1 channels to 5.1 channels. So the only cost effective options to get proper 7.1 channel pass-through were Intel based mini PCs running Linux such as Asus Chromebox M004U or Intel NUCs. But recently, I’ve seen some progress. For example, yesterday Cloud Media released a new firmware for their Open Hour Chameleon media player based on Rockchip RK3288 processor. Their Android 4.4.2 firmware (version 1.0.23) […]

April 10, 2015May 6, 2016 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

How to Compare Systems Benchmarked with Phoronix Test Suite

Phoronix Test Suite is an open source benchmark for Linux, Solaris, Mac OS X, Windows & BSD operating systems, but in practice it’s mostly used for Linux OS since other benchmarks solutions are available in Windows, while choices are more limited in Linux. There are many benchmarks to choose from, and you can select the ones you want by running a “batch-benchmarks” from the command line. I’ve done so when testing performance of ODROID-XU3 Lite and Cubieboard4 boards in Ubuntu, and once the tests are completed, the results will be automatically uploaded to openbenchmarking.org. From there, it’s quite easy to compare recent results as you’ll get an “add to comparison” option on the site, and you can pick a few results. You can select a few systems, and then click on “Compare Results” to get a side-by-side comparison. If you want to compare your system to an existing system, you […]

April 10, 2015 by Jean-Luc Aufranc (CNXSoft) - No Comments

Mediatek LinkIt Assist 2502 Open Source Hardware Board Targets Wearables and IoT Applications

After LinkIt ONE, Mediatek Labs has introduced a new IoT development kit based on their Aster M2502 ARM7 processor with LinkIt Assist 2502 comprised of AcSiP MT2502A IoT SiP Core module, a 802.11b/g/n module, a GNSS module, and an exchangeable 240×240 16-bit color capacitive touch LCM Board. The AcSiP module can also be purchased separately, so you could use LinkIt Assist 2502 board for early development, because moving to your custom hardware based on AcSiP MT2502A module. LinkIt Assist 2502A specifications: MCU – AcSiP AI2502S05 module with MT2502A (Aster) ARM7 EJ-STM processor @ 260MHz, 4MB RAM, 16MB flash Display – 240×240 LCD module; 16-bit color depth; transflective; based on ST7789S driver IC. Connectivity Wi-Fi 802.11 b/g/n via AcSiP CW01S module based on MT5931 SoC Bluetooth 2.1 SPP and 4.0 GATT dual mode (part of MT2502A) GPS via AcSiP CW03S module based on MT3332 chip supporting GPS, GLONASS, and BeiDou. GSM […]

April 9, 2015 by Jean-Luc Aufranc (CNXSoft) - 11 Comments

Mygica ATV586 Amlogic S805 Android TV Box Comes with DVB-T2 or ATSC Tuner

One of the first quad core Android DVB-T2 receiver was VideoStrong K1 that now sells for $80 on Aliexpress, but there’s now some competition from Geniatech, with the same Amlogic S805 processor, thanks to Mygica ATV586 Android TV box featuring either a DVB-T2 or ATSC tuner. ATV586 Specifications: SoC – Amlogic S805 quad core ARM Cortex A5 @ 1.5GHz with quad core Mali-450MP GPU System Memory – 1 GB DDR3 Storage – 4 GB NAND flash + micro SD slot (up to 32GB) Connectivity – 10/100M Ethernet, 802.11 b/g/n Wi-Fi Video & Audio Output – HDMI 1.4 Video Codec – H.265, H.264 etc.. up to 1080p60 Tuner DVB-T & DVB-T2 standard with single input terminal (75 Ohm); Frequency – 48.25 – 863.25 MHz; Bandwidth: 6, 7 or 8 MHz ATSC also supported (with a different tuner) USB – 2x USB 2.0 ports Misc – IR sensor Power Supply – 5V/2A […]

April 9, 2015April 10, 2015 by Jean-Luc Aufranc (CNXSoft) - 10 Comments

ALi M3733 Dual Core Processor Finds its Way into DVB-T2 & DVB-S2 Android and Linux Set-top Boxes

Ten years ago, I remember ALi was in big player in DVD players, but I had not much heard about them since then. Thanks to a ARMdevices.net I found out they are still around, and their latest Ali M3733 dual core ARM Cortex A9 processor will soon be found in DVB set-top boxes like Uyesee L100T2 with a DVB-T2 tuner, or EKT DSD7045 DVB-S2 hybrid set-top box. The former is running Android 4.4, but the latter is likely based on Linux since it only has 512MB NAND flash. The EKT receiver runs SolidTV middleware with HbbTV, conditional access, and more features, and it does look like an interesting product, but I’ll focus on the Uyesse for this post: SoC – ALi M3733 dual core Cortex A9 processor with a dual core Mali-400 GPU System Memory – 512 MB DDR3 (Option: 1GB) Storage – 4GB NAND flash (Options: 8 to 32GB) […]

April 9, 2015April 9, 2015 by Jean-Luc Aufranc (CNXSoft) - 28 Comments

Relative Performance of ARM Cortex-A 32-bit and 64-bit Cores

Many people assume newer processors will be faster, or that 64-bit processor will provide a performance boost compared to 32-bit processors, but the reality can be quite different, and I’ve decided to have a look at ARM Cortex-A cores using ARMv7 (32-bit) and ARMv8 (64-bit) architecture, and see what kind of integer performance you can expect from each at a given frequency. To do so, I’ve simply use DMIPS/Mhz (Dhrystone MIPS/Megahertz) values listed on Wikipedia. Drystone benchmark has no floating-point operating, so it’s a pure integer benchmark. I’m only looking at ARM core here, and once integrated in an SoC, other parameters like memory bandwidth, amount of cache, GPU, etc.. will greatly affect the overall system performance. The figure above are per MHz, and it does not mean for example that a Cortex A5 processor will be slower than a Cortex A7 processor, as can be seen by the comparison […]

April 9, 2015April 9, 2015 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

Vortex86DX3 is a New x86 SoC for Embedded Systems

Intel is already making embedded version of their processor with example with Bay Trail-I or Quark SoCs, but Taiwan based DMP Electronics has also been making x86 SoC such as Vortex86EX that can be found in $39 86duino Zero board, which must be one the cheapest, if not the cheapest, x86 board on the market. Of course, this is not designed to run Windows and Office, but rather some embedded (IoT) applications. The company has recently launched Vortex86DX3, a more powerful x86 dual core processor, suited to embedded systems and communication products such as thin clients, NAT routers, gateways, etc… DMP Vortex86DX3 specifications: Dual Core x86 Processor @ 1GHz with 6 stage pipeline, x86 instruction set Floating point – Implements ANSI/IEEE standard 754-1985 for binary Floating-Point Architecture Cache – 8-way 32K I-Cache, 8-way 32K D-Cache, 4-way 512KB L2 Cache with write through or write back policy System DDR3 Control Interface – 32-bit data […]

April 9, 2015 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Intel Celeron N3000 2-in-1 Laptop, and MSI Motherboards with Celeron N3050/N3150 and Pentium N3700 Processors

Intel introduced the first low power Braswell Celeron and Pentium processors with 4 to 6W TDP, meaning a lower power consumption compared to Bay Trail-M processors, and with better performance. The first devices and motherboards based on these have started to show up with Intel’s Orchid Island 2-in-1 Reference Design based on Celeron N3000, and three MSI motherboards: N3050I ECO, N3150I ECO, and N3700I ECO respectively powered by Celeron N3050 dual core processor, Celeron N3150 quad core processor, and Pentium N3700 quad core processor, all clocked @ 1.6GHz (base frequency) and with 6W TDP. MSI did not release full details about their motherboards but we still now they’ll support H.265/HEVC hardware decoding up to 4K, Blu-ray playback and 8-channel HD Audio via an HDMI 1.4b port. Other connectors and interfaces include two DDR3L-1600MHz SO-DIMM slots (up to 8GB), two SATA III ports, one PCIe slot, Gigabit Ethernet, a COM port, […]