Linus Torvalds released Linux Kernel 3.18 last Sunday: It’s been a quiet week, and the patch from rc7 is tiny, so 3.18 is out. I’d love to say that we’ve figured out the problem that plagues 3.17 for a couple of people, but we haven’t. At the same time, there’s absolutely no point in having everybody else twiddling their thumbs when a couple of people are actively trying to bisect an older issue, so holding up the release just didn’t make sense. Especially since that would just have then held things up entirely over the holiday break. So the merge window for 3.19 is open, and DaveJ will hopefully get his bisection done (or at least narrow things down sufficiently that we have that “Ahaa” moment) over the next week. But in solidarity with Dave (and to make my life easier too 😉 let’s try to avoid introducing any _new_ […]
Allwinner H3 is a Quad Core SoC for Sub $50 4K H.265 Media Players
Allwinner launched their H-series processors (Homlet) for home entertainment with Allwinner H8 octa-core processor, supporting HEVC up to 1080p, which will find its way into media players selling between $50 and $80. The company has now added Allwinner H3 quad core processor, selling for just $6, which will be available in $35 to $50 OTT TV box later this month, and include support for 4K UHD H.265/HEVC video playback. Key features of Allwinner H3: CPU – Quad core Cortex A7 GPU – Mali-400MP2 up to 600 MHz Memory I/F LPDDR2, LPDDR3, DDR3, DDR3L SDRAM 8-bit SLC, MLC, TLC, EF NAND with 64-bit ECC SD, eMMC, tSD, fSD, and efSD Video Decoding – H.265/HEVC and H.264 up to 4K@30 fps, H.264 BP/MP/HP, VP8, MPEG1/2, MPEG4 SP/ASP GMC, H.263 including Sorenson Spark, WM9/VC1, JPEG/MJEPG up to 1080p60 Encoding – H.264 up to 1080p30 Video Output – HDMI with HDCP, CEC, 3D function, […]
Allwinner A83T Tablet Unboxing, First Boot, and Benchmarks
Allwinner & HonHai Precision Industry, better known as Foxconn, sent me an Infocus tablet based on Allwinner A83T processor with eight Cortex A7 cores up to 2GHz, and a PowerVR SGX544 GPU. Today, I’ll list the specifications of this tablet, show unboxing pictures, first boot video, and run Antutu benchmark. Infocus New Tab CS1 A83 / C2107 Specifications The invoice calls the tablet “New Tab CS1 A83”, but Android reports the model as C2107, so I’m not fully sure what will be the actual name. It might well be New Tab CS1 A83, as I could find an Infocus an earlier Infocus New Tab CS1 tablet powered by Allwinner A31. Anyway, here are the specifications I could derive from the device, and running Antutu/CPU-Z on the device: SoC – Allwinner A83T octa-core ARM Cortex-A7 @ 2.0 GHz with PowerVR SGX544MP GPU supporting OpenGL ES 2.0/1.1, OpenCL 1.1, DX 9.3. System […]
AllWinner A80 Octa Core big.LITTLE Processor CPU Usage Under Various Loads in Android 4.4 (Video)
Allwinner A80 is one of the few octa core processors featuring ARM’s big.LITTLE technology currently available on the market. The processor comes with four ARM Cortex A15 (big) cores, and four ARM Cortex A7 (LITTLE) core, and tasks will be scheduled to different processor depending on the load to optimize power consumption on mobile devices. However, earlier big.LITTLE processors like Samsung Exynos 5410 has some serious limitations, as they only supported “cluster migration” meaning you could only use the Cortex A7 cluster or Cortex A15 cluster at any given time, so Exynos 5410 could only make use of four cores at most due to hardware limitations. They also used to be two software implementations: In-kernel Switching (IKS) and Global Task Scheduling (GTS). The former could only handle one type of core at the same, and the latter, which I believe is now used in all new devices, can handle any […]
Android 5.0 Lollipop Coming to Allwinner A33 & A80, Rockchip RK3288, and More…
I can often see questions requesting whether SoC XYZ will support Android 5.0 Lollipop. The good news is that last week, I’ve read lots of news about Android 5.0 support on various devices including Nvidia Shield tablet, Motorola G & X smartphones, and of course the Google Nexus devices. A developer (Nanik T.) also ported Android Lollipop to ODROID U3 development board based on Exynos 4412, and he mentioned that “porting was pretty straight forward as KK and 5.0 does not have a lot of differences in terms of HAL”, which means there’s hope for more recent devices and SoCs getting the update. Chinese SoC vendors are also getting the word out that they are working on Android 5.0. Rockchip announced Lollipop support for RK3288 processor (original news in Chinese) probably coming to tablets first, and Android TV boxes later. They used their reference platforms in the provided pictures, and […]
How-to Install Ubuntu on Allwinner A80 Powered pcDuino8 and A80 OptimusBoard
Last month, pcDuino released Android 4.4 and Ubuntu images for pcDuino8 board powered by Allwinner A80 octa core processor, and since it’s the same board layout as A80 OptimusBoard, I decided to try it out, but it failed as the update script would try to flash it to a partition that’s too small for the root file systems. But last week, Ian Morrison and Minidodes gave it another try, and successfully booted Ubuntu, or more exactly Lubuntu, on A80 OptimusBoard. Both their screenshot reports sun9i platform in /proc/cpuinfo, so that’s definitely Allwinner A80, but only one core is shown. I’m not sure if it’s because the other are idled and don’t show, or for some reasons, the kernel only supports one core at this stage. Anyway, here’s how they did to install Lubuntu: Flash the kernel (pcduino8_kernel_livesuit_20141008.img) with PhoenixCard or Livesuit first. See instructions to use Livesuit with A80 OptimusBoard. […]
Allwinner H64 based Nobel64 Could the First Affordable 64-bit ARM Development Board
Based on the comments I read on this blog many people are early waiting for 64-bit ARM boards. There are already ARMv8 server boards by Applied Micro, AMD and others, but these cost several thousand dollars and are not sold to individuals, and ARM recently launched Juno development board, but it should be well over the budget of most hobbyists too. But the wait may soon be over, as Padnews found out Allwinner and Merrii Technology showcased Nobel64 development board powered by a yet to be announced Allwinner H64 64-bit ARM SoC at the Hong Kong Electronics Fair. Nobel64 development board specifications: SoC – Allwinner H64 quad core 64-bit ARM processor, most probably based on Cortex A53 cores. System Memory – 2GB DDR3 Storage – 16 GB eMMC + micro SD card slot Video / Audio Output – HDMI 1.4 + AV port. Connectivity – Gigabit Ethernet, dual band Wi-Fi, […]
Allwinner A80 Android TV Boxes Coming Soon, Starting with Zero Devices Z8C Alice
Allwinner A80 based tablets such as Onda V989, and development boards such as A80 OptimusBoard started to ship one to two months ago, but there was absolutly no news about Android mini PCs / media player based on the latest Allwinner processor. This is about to change as ZeroDevices twitted about their Z8C Alice TV Box, apparently designed by Sunchip, and in collaboration with a UK based digital signage company called Eclipse Digital Media. Preliminary technical specifications that we can infer from the picture above: SoC – AllWinner Ultra Core A80 4x Cortex 15, 4x Cortex A7 big.LITTLE processor with Imagination Technologies PowerVR GC6230 GPU with support for OpenGL ES 1.1/2.0/3.0, Directx 9.3 System Memory – N/A Storage – ?? GB eMMC + SD card slot + SATA port (most probably via a USB 2.0/3.0 bridge) Video Output – HDMI + AV port Audio – HDMI, AV, and optical S/PDIF […]