Rockchip RK31xx Category - Page 2 of 17 - CNX Software

March 4, 2019April 22, 2019 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Linux 5.0 Release – Main Changes, Arm, MIPS & RISC-V Architectures

Linus Torvalds has just released Linux 5.0: Ok, so the last week of the 5.0 release wasn’t entirely quiet, but it’s a lot smaller than rc8 was, and on the whole I’m happy that I delayed a week and did an rc8. It turns out that the actual patch that I talked about in the rc8 release wasn’t the worrisome bug I had thought: yes, we had an uninitialized variable, but the reason we hadn’t immediately noticed it due to a warning was that the way gcc works, the compiler had basically initialized it for us to the right value. So the same thing that caused not the lack of warning, also effectively meant that the fix was a no-op in practice. But hey, we had other bug fixes come in that actually did matter, and the uninitialized variable _could_ have been a problem with another compiler. Regardless – all […]

August 9, 2018 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

KINGJIM Pomera DM200 Rockchip RK3128 Portable Mini Computer Can Run Debian

Ultra mobile portable computers (UMPC) are somewhat making a come back with products such as GPD Pocket 2 or DragonBox Pyra open source handheld computer. While being fairly powerful, neither devices are particularly inexpensive, and if you are looking for something cheaper, and admittedly much slower, I’ve been informed that Rockchip RK3128 based KINGJIM Pomera DM200 mini computer can be an option since it has been “hacked” to run Debian. By default, the device runs a Linux OS with user interface in Japanese only, and is sold as a digital memo. Some of the specifications include: SoC – Rockchip RK3128 quad core Cortex A7 processor with Mali-400MP2 GPU System Memory – 512MB RAM Storage – 4GB flash, micro SD slot up to 32GB Display – 7″ TFT LCD display with WSVGA (1024 x 600) resolution Connectivity – WiFi 802.11 b/g/n + Bluetooth 4.0 LE + EDR Keyboard – Japanese keyboard […]

March 26, 2018March 26, 2018 by Jean-Luc Aufranc (CNXSoft) - 11 Comments

Rockchip RK3128 based EMISH X700 Smart TV Box is Selling for $16.99 (Promo)

GearBest has another time and stock limited promotion with a low cost TV box, namely “EMISH X700 Smart TV Box” going for $16.99 shipped with coupon GB4X7. EMISH X700 (RH46BUS) TV box specifications: SoC – Rockchip RK3128 quad core Arm Cortex-A7 processor @ up to 1.2GHz with Mali-400MP2 GPU System Memory – 1GB RAM Storage – 8GB eMMC flash, micro SD card slot up to 16GB Video Output – HDMI 1.4a up to 1080p60, composite RCA port Audio Output – Optical S/PDIF, HDMI and stereo audio RCA connectors Video Codecs – H.265, H.264 and others up to 1080p60 Connectivity – 10/100M Ethernet, dual band 802.11 a/b/g/n/ ac WiFi USB – 2x USB 2.0 host ports Misc – IR receiver Power Supply – 5V / 2A Dimensions – 18 x 12 x 2.5 cm Weight – 170g The box runs Android 4.4, and ships with an IR remote control, a power adapter, […]

January 30, 2018 by Jean-Luc Aufranc (CNXSoft) - 13 Comments

Linux 4.15 Release – Main Changes, Arm and MIPS Architectures

Linus Torvald has released Linux 4.15 last Sunday: After a release cycle that was unusual in so many (bad) ways, this last week was really pleasant. Quiet and small, and no last-minute panics, just small fixes for various issues. I never got a feeling that I’d need to extend things by yet another week, and 4.15 looks fine to me. Half the changes in the last week were misc driver stuff (gpu, input, networking) with the other half being a mix of networking, core kernel and arch updates (mainly x86). But all of it is tiny. So at least we had one good week. This obviously was not a pleasant release cycle, with the whole meltdown/spectre thing coming in in the middle of the cycle and not really gelling with our normal release cycle. The extra two weeks were obviously mainly due to that whole timing issue. Also, it is […]

September 4, 2017 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

Linux 4.13 Release – Main Changes, ARM & MIPS Architectures

Linus Torvalds has just announced the release of Linux 4.13 and a kidney stone…: So last week was actually somewhat eventful, but not enough to push me to delay 4.13. Most of the changes since rc7 are actually networking fixes, the bulk of them to various drivers. With apologies to the authors of said patches, they don’t look all that interesting (which is definitely exactly what you want just before a release). Details in the appended shortlog. Note that the shortlog below is obviously only since rc7 – the _full_4.13 log is much too big to post and nobody sane would read it. So if you’re interested in all the rest of it, get the git tree and limit the logs to the files you are interested in if you crave details. No, the excitement was largely in the mmu notification layer, where we had a fairly last-minute regression and […]

August 10, 2017August 10, 2017 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

CrazyPi Board Runs Ubuntu and ROS on Rockchip RK3128 SoC for Robotics & IoT Projects (Crowdfunding)

CrazyPi is a maker board powered by Rockchip RK3128 quad core Cortex A7 processor that can take various magnetically connected modules such as LIDAR, gimbal, 4G LTE, etc.., and runs both Ubuntu and ROS (Robot Operating System) for DIY robotics & IoT projects. CrazyPi main board specifications: SoC – Rockchip RK3128 quad core Cortex A7 processor @ 1.2 GHz with ARM Mali GPU MCU – ARM Cortex-M3 @ 72 MHz System Memory – 1GB DDR3L @ 1066 MHz Storage – 16GB eMMC flash pre-loaded with Ubuntu and ROS Connectivity – 802.11 a/b/g/n WiFi @ 150 Mbps, Bluetooth 4.0 USB – 1x USB 2.0 host port Expansion Headers – Two headers with a total of 36-pin exposing 1x HDMI, 1x speaker, 1x microphone, 3x PWM, 1x I2C, 1x UART, 1x SPDIF, 1x SPI, 1x USB Power Supply – 5V via micro USB port ? Dimensions – Smaller than credit card The […]

April 19, 2017April 20, 2017 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

Rockchip Introduces Three Tablet SoCs: RK3126C, RK3326, RK3366, and RK3368H Processor for 2-in-1 Laptops

Rockchip has launched four more processors at the Hong Kong Electronics Fair 2017, with three SoCs specifically targeting tablets namely RK3126C, RK3326 and RK3366, and one SoC, RK3368H modified from RK3368, designed to provide a lower cost alternative to RK3288 and RK3399 for 2-in-1 hybrid laptops and tablets. The company only provided limited information with regards to the tablet SoCs specifications: RK3126C quad core processor supporting 1080p video decoding and HD (720p?) displays for entry-level tablets RK3326 quad core ARM Cortex A35 processor with a quad core Mali GPU, DDR3/LPDDR memory interface, 1080p60 H.264, MPEG-4/-2 video decoding, and 1080p30 H.264 video encoding RK3366 quad core ARM Cortex A53 processor with a quad core Mali GPU, DDR3/LPDDR memory interface, USB 3.0 interface, and 4K H.265 video decoding All three processors will be running Android 7.1. I could not find any tablets based on the processor yet, so we may have to […]

April 10, 2017 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

Rikomagic RKM R1 Mini Projector Review – Part 2: Android Firmware, Kodi, Touchpad, and HDMI Input

Rikomagic RKM R1 is a projector running Android 4.4.4, and powered by Rockchip RK3128 quad core Cortex A7 processor with 1GB RAM, and 32GB storage. It has a particular feature as it comes with a touchpad on the top of the case as we’ve seen in the unboxing and teardown part of the Rikomagic R1 review. Today, I’ll report my experience with the projector playing games in Android, 1080p videos with Kodi 14.2, using the touchpad, and connecting a laptop through the HDMI input port. I’ll also run some benchmarks as usual. RKM R1 Android User Experience and HDMI Input I wanted to relax and use the projector on the bed pointing to the ceiling. RKM R1 comes with a tripod, but it’s quite small, not the projector would fall off, so I used my own tripod, connected a USB keyboard, and the USB RF dongle for Tronsmart Mars G01 […]