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November 8, 2018November 10, 2018

Giveaway Week – Libre Computer ROC-RK3328-CC Board

What will be the prize on the fourth day of this year’s giveaway week? Libre Computer ROC-RK3328-CC, a development board based on Rockchip RK3328 processor and mostly following Raspberry Pi 3 form factor. When I reviewed the board with Debian 9 last summer, I was mostly reminded how important fast storage and proper power supply were important. I had some kernel panic when using slow storage (micro SD card), but when I switch to the eMMC flash stability improved a lot. I also had some troubles with my USB 3.0 hard drive, but switching from a 5V/2A power supply to a 5V/2.5A power adapter solved most of my problems. Once I had “solved” those two issues the board worked fairly well, and Libre Computer always aims for mainline Linux support on their board, so that’s an advantage to take into consideration. The kit offered includes the board and heatsink, so […]

October 23, 2018

Linux 4.19 Release – Main Changes, Arm and MIPS Architectures

With Linus Torvalds taking a leave from the Linux kernel project, Greg Kroah-Hartman was the one to release Linux 4.19 last Sunday: Hi everyone! It’s been a long strange journey for this kernel release… While it was not the largest kernel release every by number of commits, it was larger than the last 3 releases, which is a non-trivial thing to do. After the original -rc1 bumps, things settled down on the code side and it looks like stuff came nicely together to make a solid kernel for everyone to use for a while. And given that this is going to be one of the “Long Term” kernels I end up maintaining for a few years, that’s good news for everyone. A small trickle of good bugfixes came in this week, showing that waiting an extra week was a wise choice. However odds are that linux-next is just bursting so […]

La Frite Amlogic S805X Board Runs Mainline Linux, Goes for $5 and Up (Crowdfunding)

Libre Computer first started with their AML-S905X-CC (aka Le Potato) board powered by Amlogic S905X processor last year, and they’ve since then launched several other boards based on Allwinner or Rockchip processor. But their latest “La Frite” board – also known as AML-S805X-AC – is an even lower cost version of the “Le Potato” board, with an Amlogic S805X processor limited to 1080p60 output and video decoding, a smaller footprint based on the one for Raspberry Pi Model A+, and price starting at just $5 on Kickstarter. AML-S805X-AC “La Frite” board specifications: SoC – Amlogic S805X quad core ARM Cortex-A53 processor @ 1.2 GHz with penta core ARM Mali-450MP GPU @ 650 MHz, and Amlogic Video Engine 10 System Memory – 512 MB or 1GB DDR4 @ 2400 MHz Storage – eMMC module connector, 128 Mb SPI NOR flash Video & Audio Output – HDMI 2.0 port Video Codecs Decoding […]

August 27, 2018September 29, 2021

RockPro64 RK3399 Board Linux Review with Ubuntu 18.04 + LXDE

Let’s do one more RK3399 Linux review using Pine64 RockPro64 development board. After shortly checking out the hardware, I’ll test Ubuntu 18.04 “Bionic” LXDE on the board, test 3D graphics acceleration, video playback, USB storage and network performance among other things on the board. RockPro64 Board Unboxing The board came in a cardboard package, and the sticker made it clear I had received the 2GB LPDDR4 version. Even after FriendlyELEC NanoPi M4 announcement, Rockchip ROCKPro64 is still the cheapest RK3399 development board around, so it should come as no surprise that the board does not come with any accessories by default. Another way to keep the price low was not to include any built-in storage apart from SPI flash, so instead most people will either boot from micro SD card or an eMMC flash module both of which need to be purchase separately. Another cost-saving is the lack of built-in […]

August 13, 2018August 13, 2018

Linux 4.18 Release – Main Changes, Arm and MIPS Architecture

Linus Torvalds has just announced the release of Linux 4.18: One week late(r) and here we are – 4.18 is out there. It was a very calm week, and arguably I could just have released on schedule last week, but we did have some minor updates. Mostly networking, but some vfs race fixes (mentioned in the rc8 announment as “pending”) and a couple of driver fixes (scsi, networking, i2c). Some other minor random things (arm crypto fix, parisc memory ordering fix). Shortlog appended for the (few) details. Some of these I was almost ready to just delay to until the next merge window, but they were marked for stable anyway, so it would just have caused more backporting. The vfs fixes are for old races that are really hard to hit (which is obviously why they are old and weren’t noticed earlier). Some of them _have_ been seen in real […]

July 26, 2018

Google Unveils Edge TPU Low Power Machine Learning Chip, AIY Edge TPU Development Board and Accelerator

Google introduced artificial intelligence and machine learning concepts to hundreds of thousands of people with their AIY projects kit such as the AIY Voice Kit with voice recognition and the AIY Vision Kit for computer vision applications. The company has now gone further by unveiling Edge TPU, its own purpose-built ASIC chip designed to run TensorFlow Lite ML models at the edge, as well as corresponding AIY Edge TPU development board, and AIY Edge TPU accelerator USB stick to add to any USB compatible hardware. Google Edge TPU (Tensor Processing Unit) & Cloud IoT Edge Software Edge TPU is a tiny chip for machine learning (ML) optimized for performance-per-watt and performance-per-dollar. It can either accelerate ML inferencing on device, or can pair with Google Cloud to create a full cloud-to-edge ML stack. In either case, local processing reduces latency, remove the needs for a persistent network connection, increases privacy, and […]

allwinner-open-source-vpu-drivers-mpeg2-h264

July 23, 2018July 23, 2018

Bootlin Releases Open Source VPU Driver for Allwinner Processors with MPEG2 and H.264 Video Decoding

At the beginning of the year, Bootlin – formerly Free Electrons – launched a crowdfunding campaign to bring open source Allwinner VPU driver to mainline Linux. VPU (Video Processing Unit) drivers are used to encode and decode videos. They were successfully in raising enough money from small donors, as well as several companies manufacturing Allwinner development boards including Olimex, Pine64, Libre Computer, FriendlyELEC, and Xunlong Software (Orange Pi). The amount raised (€31,612) was enough to assign two engineers to work on the main goals, as well as some stretch goals namely support for newer Allwinner H3, H5, and A64 processors, and H.265 video decoding. The good news is the company has now delivery the first release for their work on the main goals. The photo above illustrated a demo of Kodi running with bootlin open source Cedrus VPU driver on top of Linux 4.18-rc kernel. Both MPEG2 and H264 are […]

July 13, 2018July 13, 2018

Renegade Elite (ROC-RK3399-PC) RK3399 Single Board Computer Launched for $99 on Indiegogo

Libre Computer and Firefly Team previously collaborated on Renegade (ROC-RK3328-CC) board powered by a Rockchip RK3328 quad core Cortex A53 processor and mostly following Raspberry Pi 3 form factor. We already knew both companies worked again on another Rockchip RK3399 single board computer, and were expected to launch it in July via a crowdfunding campaign. The good news is that Libre Computer has just launched Renegade Elite (aka ROC-RK3399-PC) SBC on Indiegogo. Renegade Elite board specifications: SoC – Rockchip RK3399 hexa core processor with 2x Arm Cortex-A72 @ up to 2.0 GHz + 4 Arm Cortex-A53, Arm Mali-T860MP4 with OpenGL ES 1.1 / 1.2 / 2.0 / 3.1 / 3.2 and OpenCL 1.2 support System Memory – 4GB LPDDR4 SDRAM Storage – eMMC 5.x interface for storage modules up to 128GB, micro SD card slot, and 128Mbit SPI NOR flash Video Output / Display I/F HDMI 2.0 connector Embedded DisplayPort (eDP) […]