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How to Access the Serial Console in MK808 mini PC

Omegamoon has done a pretty neat hack on MK808 Rockchip RK3066 mini PC to connect a Sparkfun USB to TLL board and access the serial console for bootloader and kernel debugging. The first thing he had to do was to open the device, remove the heatsink, and locate the Rx/Tx pads on the board. The Rx and Tx pins are accessible through pads, not via through holes, so it’s just a little more difficult to solder, but nothing too challenging. He and his brother also soldered another cable to the ground. Then they inserted a 6-pin header via the ventilation holes of the device, soldered the 3 wires to the header, and fix the latter to the casing. Finally, they just inserted the debug board in the pin header, connected the USB cable to their PC, and started minicom (or equivalent) to start accessing the serial console. I think that […]

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Kimdecent Droid Stick A2 Review

At the beginning of December 2012, I wrote a post about Droid Stick A2 mini PC based on AMLogic AML-8726-MX to show some pictures of the device, but I could not really test as the firmware was not complete, and was promise a working firmware soon. Unfortunately, things did not really go according to plans for this hardware, so the firmware never showed up… Luckily, Kimdecent found another version of the device with basically the same specs, a slightly different casing, and more importantly a “working” firmware. The company was kind enough to send me another sample for review. Droid Stick A2 Unboxing Here’s what the new Droid Stick A2 and its accessories look like. Beside Droid Stick A2 mini PC, the package contains a power adapter (5V/2A), a mini USB to USB cable, a short HDMI cable and a user’s manual in English. A close up shows the device […]

ArmSoM RK3588 AIModule7 NVIDIA Jetson Nano-compatible SOM
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WonderMedia PRIZM WM8980 Dual Cortex A9 SoC

WonderMedia Technologies, a subsidiary of Via Technologies, has recently announced the WonderMedia PRIZM  WM8950, a dual core Cortex A9 processor running up to 1.2 Ghz with a Mali-400MP2 GPU. This new SoC supports Android 4.2 Jelly Bean, Linux, and WinCE 7, and targets applications for mobile, digital home and business applications in devices such as tablets, smart TVs, networked projectors, digital signage players, and thin clients. It also features integration of the Wi-Fi CERTIFIED Miracast standard into the WonderMedia SmartStream for support of DMR (Digital Media Renderer) and wireless display functionalities over standard compliant and legacy WiFi direct and WiFi devices in both embedded and Android environments. WM8980 supports HDMI, LVDS, and DVO video interfaces, features a CMOS sensor input for webcams,  SD / SDIO / MMC / e-MMC interfaces, USB 2.0 Host/device, audio interfaces (I2S, S/PDIF, PCM), SPI, I2C, UARTs and GPIO. Wi-Fi and Bluetooth can be supported with […]

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$199 Gizmo Explorer Kit Powered by AMD G-Series APU is Now Officially Available

Back in November, I came across the Gizmo Explorer Kit, an embedded development platform based on AMD G-Series G-T40E dual core APU that includes the development board itself (Gizmo Board), two expansion I/O boards, Sage SmartProbe JTAG development tool, some accessories such as cables and power supply, and a DVD with the documentation and SDK. Today, Sage Electronic, Texas Multicore Technologies, and Viosoft officially launched GizmoSphere community that aims at “fostering innovation and development for x86-based embedded Accelerated Processing Units (APUs), and driving and enabling technology projects of interest to independent developers with a focus on stimulating and encouraging innovation for existing and new applications that leverage APUs”. To help with this initiative, they also produce the Gizmo Board, and corresponding Gizmo Explorer Kit, a development board that boots with coreboot, and can run a variety of operating systems such as Android, Linux, Windows, and other RTOS. You can refer to […]

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Embedded Linux Conference 2013 Schedule

The Embedded Linux Conference (ELC 2013) will take place on February 20 – 22, 2013 at Park 55 Hotel in San Francisco, California. ELC consists of 3 days of presentations, tutorials and sessions. There will be over 50 sessions during those 3 days. I’ll highlight a few sessions that I find particularly interesting, and that did not get presented at ELCE 2012 (AFAICR). February 20 11:00 – Anatomy of the arm-soc git tree by Olof Johansson, Google We are now two years into the new maintainer model for ARM platforms, and we have settled down into a workflow that maintainers have adjusted well to. Still, when new platforms arrive, or when maintainer ship changes hands, there’s sometimes a bit of ramp-up in getting used to how we organize our git tree and how we prefer to see code submitted to fit that model. This presentation will give an overview of […]

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How to Access the Serial Console in HI802 / GK802 mini PC

One of the advantage of HiAPad Hi802 (aka Zealz GK802) is that it provides access to UART and I2C pins via through holes on the board. UART4 Tx and Rx pins give you access to the serial console which is a must for bootloader (U-boot), and kernel development or for debugging. The first thing is the open the casing and locate the debug pins on the board. The very best way is probably to solder a pin header, but since I don’t have header, nor soldering iron, I’ve done it the “MacGyver” way with 3 wires connected to TxD, RxD and GND, and some sticky tape. You can now insert the other side of the wires into your USB to TLL debug board (GND <-> GND, Tx <-> Rx, and Rx <-> Tx), and connect it to your Windows or Linux PC. The serial board should be recognized as a […]

Rockchip RK3568, RK3588 and Intel x86 SBCs and SoMs in 2025
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LTSI 3.4 is Now Available for Download

Nearly 2 years ago, the Linux Foundation’s Consumer Electronics (CE) working group created the Long Term Support Initiative (LTSI) Linux kernel for consumer electronics devices in order to have a common stable platform released every 2 years, and share the kernel development work among competing companies including Hitachi, LG Electronics, NEC, Panasonic, Qualcomm Atheros, Renesas Electronics Corporation, Samsung Electronics, Sony and Toshiba. Last week, the  CE working group has released LTSI 3.4 kernel, based on Linux 3.4.25 kernel release and including several backported features from newer kernels including:   The Contiguous Memory Allocator (CMA), which is extremely useful for embedded devices that have very limited hardware resources and will better handle the large memory requirements of multimedia applications. CMA originally was merged into the 3.4.0 kernel release, but its functionality was quite limited. Since then, the feature has been significantly improved in the kernel.org releases and those fixes have been added to […]

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Norco BIS-6332A Freescale i.MX6 OPS Compliant Digital Signage Platform

Norco recently unveiled a BIS-6332A, a platform based on Freescale i.MX6 processor compliant with Intel’s Open Pluggable Specification (OPS) mainly to be used as a digital signage player, but also as a fanless Box PC, a media player, a point of sale and more. The open pluggable specification (OPS) defines mechanical and electrical characteristics so that you can easily replace a OPS compliant board or device with another compliant platform. Here are the specifications of the device: SoC – Freescale Cortex-A9 i.MX 6 series (Single-core/dual-core/ Quad Core CPUs) System Memory – Onboard 1GB/2GB DDR3 800MHz RAM Storage: 1xMicro SD 4GB/8GB iNAND flash 1x SATAII for 2.5″ HDD or SSD Video Output – 1x HDMI (front panel), 1x HDMI ( extended by OPS slot) and LVDS Connectivity: 10/100/1000Mbps LAN (Atheros AR8033) On-board USB WIFI 3G (optional) USB –  2x USB on front panel, 3x USB provided via OPS slot, one 2x5Pin USB […]

Boardcon CM3588 Rockchip RK3588 System-on-Module designed for AI and IoT applications