Linux News - Page 318 of 479 - CNX Software

August 31, 2016August 31, 2016 by Jean-Luc Aufranc (CNXSoft) - 7 Comments

96Boards Compliant Mediatek X20 Development Board is Now up for Sale for $199

Mediatek Labs and Linaro introduced X20 development board based on 96Boards CE specs, and featuring Mediatek Helio X20 deca-core Cortex A72/A53 processor a couple of months ago. At the time, if you wanted to purchase the board, you’d have to fill a form explaining the details about your project, and the company, Alpha Star, would then decided whether would sell it to you. The good news here is that you don’t need to do any of that anymore, and you can buy the board directly on Seeed Studio for $199, or on Taobao for 1399 RMB. Mediatek X20 development board specifications have not changed much since the first announcement, but the CPU and GPU frequencies have been lowered somewhat, and we have some more details: SoC – Mediatek Helio X20 (MT6797) deca-core processor with two ARM Cortex A72 cores @ 2.1~2.3 GHz, four Cortex A53 @ 1.85 GHz, four Cortex […]

August 30, 2016December 5, 2017 by Jean-Luc Aufranc (CNXSoft) - 38 Comments

$79 HiSilicon Poplar is the First 96Boards TV Platform Compliant Board

At the end of last month I wrote about 96Boards TV Platform specifications, and noticed Hisilicon had one such boards, but details were sparse. Linaro has now officially unveiled HiSilicon Poplar board, the first 96Boards TV Platform board, sold for $79 + shipping on Aliexpress. Poplar board specifications: SoC – HiSilicon Hi3798C V200 quad-core 64-bit ARM Cortex-A53 CPU up to 2.0 GHz per core with ARM Mali-T720 GPU supporting OpenGL ES 3.1/3.0/2.0/1.1/1.0, OpenVG 1.1, OpenCL 1.2/1.1 Full Profile, RenderScript, and Microsoft DirectX 11 FL9_3 Memory – 1 or 2 GB DDR3 (Specs are conflicting depending where you look) Storage – 8GB eMMC flash + micro SD card slot Video Output – HDMI 2.0a with HDCP 2.2 up to 4K @ 60Hz Video Decoding – H.265/HEVC Main/Main10 and VP9 up to 4K @ 60 fps Audio Output – HDMI, optical S/PDIF, 3.5mm audio jack Connectivity – Gigabit Ethernet, 802.11 b/g/n/ac WiFi […]

August 30, 2016May 29, 2017 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

C.H.I.P Board and Allwinner A13/R8 SoCs To Get VPU Support in Linux Mainline

Allwinner has mixed relationships with open source communities such as Kodi, especially due to issues with its closed-source CedarX VPU drivers, and some GPL violations. However to address the former, linux-sunxi community has been working on open source Cedrus library for the video processor unit on Allwinner processors, that’s been successfully tested on boards such as Orange Pi One. Free Electrons has gone further, as they’ve made sure Cedrus now works with Linux mainline kernel, currently Linux 4.8, and tested it on Allwinner R8 based Pocket CHIP. The work has been done by Florent Revest, a 19 years old intern at the company, who delivered a new sunxi-cedrus driver, a Video4Linux (V4L2) memory-to-memory decoder kernel driver, and corresponding VA-API backend, with the implementations currently available on Github here and there respectively. Currently only MPEG2 and MPEG4 are working, but adding other codecs such as H.264, and video encoding is possible […]

August 28, 2016August 28, 2016 by Jean-Luc Aufranc (CNXSoft) - 165 Comments

Amlogic S905, S905X, and S912 Processors Appear to be Limited to 1.5 GHz, not 2 GHz as Advertised

When I compared the performance Amlogic S905 and Rockchip RK3368 processors last year, I noticed Amlogic S905 single thread performance not being much faster than the one of Rockchip RK3368, despite the former allegedly clocked at 2.0 GHz against the latter 1.2 GHz. But early this month one member (koschi) on ODROID forums started a thread entitled “No performance difference between 1.5, 1.75 & 2GHz” about ODROID-C2 board. The first post link to Ant-computing website about choosing a processor for a build farm, and one of the tables comparing various ARM and x86 processors with the claim that Amlogic S905 was listed to 1.536 GHz, because “the device claims to run at 2.016 GHz but the kernel silently ignores frequencies above 1.536 GHz!” So koschi did his own tests with 7z and sysbench, using cpufreq-set -u $FREQ to set a fixed frequency between test, and could confirm the issue:

7z b, total MIPS
kHZ   MIPS   
100000   221   
250000   605   
500000   1252   
1000000   2488   
1296000   3182   
1536000   3705   
1752000   3691   
2016000   3682   
   
avg. of 3 x sysbench --num-threads=4 --test=cpu run
kHZ   seconds @4threads   seconds @1threads

7z b, total MIPS

kHZ MIPS

100000 221

250000 605

500000 1252

1000000 2488

1296000 3182

1536000 3705

1752000 3691

2016000 3682

avg. of 3 x sysbench --num-threads=4 --test=cpu run

kHZ seconds @4threads seconds @1threads

[…]

August 27, 2016August 27, 2016 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

Getting Started with ReSpeaker WiFi IoT Board’s Audio Capabilities, Voice Recognition and Synthesis

ReSpeaker is a development board combining an Atmel AVR MCU, a MediaTek MT7688 WiFi module running OpenWrt, a built-in microphone, an audio jack, and I/O headers to allow for voice control and output for IoT applications. That means you could make your own Amazon Echo like device with the board and add-ons, use it as a voice controlled home automation gateway and more. The board was launched on Kickstarter a few days ago, and already raised $100,000 from about 100 backers, but I’ve received an early sample, so I’ll provide some more information about the firmware, and shows how to use with some Python scripts leveraging Microsoft Bing Speech API. You’ll need a micro USB to USB cable to connect your to computer (Linux, Windows, Mac OS…), and a speaker to connect to the board. Linux (OpenWrt) boots in a few seconds, and once it’s done all RGB LED will […]

August 26, 2016September 3, 2016 by Jean-Luc Aufranc (CNXSoft) - 7 Comments

Ambarella A12S SoC Allows For Cheaper 4K 30 fps Action Cameras, or Does it Not?

[Update: I’ve been informed that Ambarella A12S product brief from their website contains outdated information, and that A12S does indeed support 4K @ 30 fps, not only 2K @ 30 fps] [Update 2 (03/09/2016): The company has now updated the page, and I’ve myself updated the article accordingly] Some ultra cheap Allwinner V3 based cameras are advertised as 4K cameras, but in reality they are limited to 4K @ 15 fps, and on top of that the software have to extrapolate data to get to that resolution. So there are not usable for most people, unless maybe if you somehow need a 4K CCTV camera. Currently one of the cheapest “true” 4K action cameras is Yi Technology / Xiaomi Yi 2 sports camera based on Ambarella A9S SoC, capable of recording up to 4K @ 30 fps, and selling for around $250. But there’s now a new wave of cheaper […]

August 26, 2016August 27, 2016 by Jean-Luc Aufranc (CNXSoft) - 247 Comments

VideoStrong KII Pro Android Set-top Box with DVB-T2 & DVB-S2 Tuners Comes with 2GB RAM

Based on the number of comments I get daily on my review of Videostrong K1 Plus T2 S2 Android TV box, the device is rather popular thanks to its dual DVB-T2/T2C and DVB-S2/S tuner, its low price, and OpenELEC community support. However, some people are possibly affected by the mere 1GB RAM in the system, with some apps being killed during use due to lack of memory. One solution is to purchase WeTek Play 2, but at $120 it’s in a different price range, and does not offer a dual tuner solution. But Videostrong has recently launched their KII Pro DVB T2+S2 model based on K1 Plus DVB T2+S2, but with 2GB RAM, 16GB storage, and 802.11ac WiFi. KII Pro specifications: SoC – Amlogic S905 quad core ARM Cortex-A53 @ up to 2.0GHz with penta-core Mali-450MP GPU @ 750 MHz System Memory – 2GB DDR3 Storage – 16GB eMMC flash + […]

August 25, 2016August 25, 2016 by Ray - 8 Comments

KowanTV Click Linux IPTV Box Review

CNXSoft: Ray reviews Amlogic S812 powered Linux based KowanTV Click TV box with allegedly access to over a thousand free IPTV channels. While the hardware is pretty standard, you pay a (hefty) premium to access their IPTV servers, and it reminds me of Jynxbox Live which I reviewed a few years ago. I received one these rare Linux stream boxes. It’s called TVone Entertainment hub, advertised as: KowanTV Click To Play Entertainment Hub European American TV Channels Live Broadcast Video on demand IPTV BOX 1000+ Free Channels, and provided by GeekBuying for this review. KowanTV Click Specifications System Operating System Embedded Media OS( linux ) CPU Amlogic S812( ARM cortex-A9 ) GPU Mali-450 Octo-core RAM 2GB RAM ROM 8GB Flash Memory Communication Wifi Connectivity IEEE 802.11 b/g/n 2.4GHz/5GHz Ethernet 10/100M Bluetooth Yes Media Video Supported Video (up to 4K) – MPEG1/2/4, H.264, H.265,AVC, VC-1 , RM/RMVB , Xvid , DviX3/4/5/6, […]