CNX Software - Embedded Systems News

February 14, 2013July 21, 2023 by Jean-Luc Aufranc (CNXSoft) - 7 Comments

Open ARM GPU Drivers FOSDEM 2013 Video and Call to ARM Management

As I previously wrote, FOSDEM organizers are slowly uploading FOSDEM 2013 videos. One of the most interesting talk “Open ARM GPU Drivers” is now available. I’ve also uploaded it to YouTube (embedded below) to give it more exposure. Luc Verhaegen has also written a recent blog post entitled “Hey ARM!” where he announces the release of the modified source for Quake 3 Arena demo, and asks ARM to join them in making an open source driver. Open ARM GPU Drivers @ FOSDEM2013 This session covers the following key points: Problem – Binary drivers are mainly designed to run in Android, and it’s very difficult to have proper GPU drivers for Linux, and companies are not interested to release open source drivers or even just documentation, as they are not convinced it will benefit them in any way. Legal – This is actually the main issue, as open sourcing existing driver […]

February 13, 2013March 4, 2013 by Jean-Luc Aufranc (CNXSoft) - 20 Comments

Developer Community for Freescale i.MX6 HDMI Dongles

Last week, I explained how to build U-boot, the kernel, and Android for Freescale i.MX6 HDMI dongle reference platform. Since them, there has been a bit more activity, with Richtechie releasing source code to some ARMTvTech members. However, this source code is very similar to the one released by Freescale, and misses some part present in the kernel config on GK802 such as CONFIG_MACH_MX6Q_RICHTECHIE, and the company clearly does not comply with the GPL. Let’s forget that for now, as Jasbir (who is also behind the Hackberry board) has managed to build and boot the kernel on his mini PC. There’s still more work to do, but at least we have a based to work on. In the meantime, I’ve noticed rz2k, an other developer, was also giving it a try on #arm-netbook Freenode IRC channel, so we decided to setup a few things to facilitate development and communication between developers. […]

February 13, 2013February 17, 2013 by Jean-Luc Aufranc (CNXSoft) - 27 Comments

ARMBRIX Zero Cortex A15 Development Board Unboxing Pictures

I’ve just received an early sample of ARMBRIX Zero (aka ARMBRIX-5250-A), a development board based on Samsung Exynos 5250 dual cortex A15 processor with 2GB RAM, a microSD slot, 1x USB 3.0, 2x USB 2.0 Host, 1x USB Device, 10/100 Ethernet, HDMI output, SATA 3.0, some Audio I/O ports, and 3 expansions headers. This is basically a low cost version of the Arndale board, with things such as eMMC 4.5 (Sorry I’ve missed the eMMC socket at the back of the board) sensors missing. Today, I won’t turn the board on (I’ll explain why at the end of the post), but instead show some pictures of the development and debug boards. If you had previously seen the board picture before, you’ll noticed it has a grown a heatsink. The heatsink is probably here to stay, but may be slightly different (e.g. lower) when you receive your board. The bottom acrylic […]

February 12, 2013 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Pipo Max M9 Android 4.1 Tablet Powered by Rockchip RK3188

I first heard about Rockchip RK3188 quad core Cortex A9 at the end of 2012, Rockchip showcased an RK3188 tablet development platform at CES 2013, and we were told the first tablet would ship in March without more details about available models. It appears Pipo Max M9 may be one of the first RK3188 available for purchase. This Android 4.1 tablet features a 10″ IPS display with 1280 x 800 resolution, 2 GB RAM, and 16 GB Flash. Here are the full specifications for PiPO MAX M9: SoC – Rockchip RK3188 Quad core Cortex A9 @ 1.8GHz with Mali-400MP4 GPU @ 533 MHz. System Memory – 2 GB RAM Storage – 16 GB flash + microSD slot Display – 10.1″ IPS display with 10-Point capacitive touch screen. Resolution: 1280 x 800 pixels Connectivity: Wi-Fi 802.11 b/g/n Bluetooth 2.1 3G via external USB dongle Camera – 2.0MP front camera, 5.0MP rear […]

February 12, 2013February 20, 2013 by Jean-Luc Aufranc (CNXSoft) - 9 Comments

MK812 mini PC Comes with 1GB RAM, a Webcam and an External Wi-Fi Antenna

Here’s yet another mini PC based on Rockchip RK3066. MK812 mini PC looks just like Kimdecent B12, but the version version has been updated by replacing one of the microUSB ports with a jack to insert the cable of a high gain 3dB antenna. The antenna has a magnetic base so that you can stick it on your metallic furnitures… They have also increased the amount of RAM, and you now get 2GB RAM in the device. Update: Only 1GB RAM finally. Here are the MK812 specifications as shown on MiniAndroidPC: SoC – Dual-core Allwinner? A9 1.2~1.6GHz CPU processor System Memory – 2 1GB DDR3 Storage – 8GB NAND flash memory + microSD slot Video Output – HDMI (1080p/2160p) Connectivity – Wi-Fi 802.11 b/g/n & Bluetooth 2.3 Camera – Build-in 2MP camera USB – 1x USB 2.0 Host, 1x USB OTG Misc – Build-in microphone, and reset button. Dimensions – 88 […]

February 12, 2013February 12, 2013 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

How to Display dd Progress and dd.sh Script

Upgrading software on Linux / Android boards or devices often involves copying images to an SD card or microSD. In Linux, you’d usually do that with dd, a utility that provides binary copy of data to files or block devices. A typical command would be:

sudo dd if=new_firmware.bin of=/dev/sdc

1	sudo dd if=new_firmware.bin of=/dev/sdc

However, during the copy, dd does not show a progress bar by default. But dd actually supports progress report, as indicated in the manpage: you can run dd, and send USR1 signal to display the current progress once, and resume copying. Linux commando explains how to continuously return the progress. First run the dd command:

sudo dd if=/dev/random of=/dev/null bs=1K count=100

1	sudo dd if=/dev/random of=/dev/null bs=1K count=100

Open another terminal window to find out the process id:

pgrep -l '^dd$'
10152 dd

1 2	pgrep -l '^dd$' 10152 dd

And use the watch command to send USR1 at regular interval.

watch -n 10 sudo kill -USR1 10152

1	watch -n 10 sudo kill -USR1 10152

You should see dd progress in the first window every 10 seconds. It works, but the output is not very nice because dd will just […]

February 12, 2013February 18, 2013 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Lernstift – Linux Based Learning Digital Pen

Lernstift UG, a German startup, is working on a digital pen, called Lernstift as well, that can help children learning how to write by vibrating in case of errors. The Lernstift can be used in 2 modes: Calligraphy Mode – Pointing out flaws of form and legibility. Orthography Mode – Detecting orthographic (1 vibration) and grammatical (2 vibration) mistakes. Since it features a ballpoint, it can be used as a real pen, you know to write on paper…, but you can also write in the air, so I suppose they’ll also make a version without ballpoint, so that kids can enjoy one of their favorite pastimes: writing on the walls! The pen features a CPU module (2) that’s used to handle handwriting recognition, gather data from the motion (1) and pressure (3) sensors, and manage the Wi-Fi module (4). A battery, a power switch, and a pen refill complete Lernstift […]

February 11, 2013February 11, 2013 by Jean-Luc Aufranc (CNXSoft) - No Comments

Infineon Hexagon Application Kit (XMC4500 Enterprise Edition) Overview and Quick Start Guide

A few months ago, Infineon sent me XMC4500 Relax Lite Kit for review, and I wrote a short Getting Started Guide about this 10 Euros Cortex M4 devkit. This month, I’ve received another XMC4500 kit with more features and expansion abilities: XMC4500 Enterprise Edition which is one of their Hexagon Application Kit. I received two packages: CPU Board XMC4500 General Purpose (CPU_45A-V2) with accessories (55 Euros) – This is what you get when you order to Basic Kit. J-Link Lite Cortex-M Debugger (40 Euros) Let’s open the packages and see what’s inside. In the first package, we’ve got XMC4500 CPU board, a pin extension board that can be used on any of the 3 extension connectors of the CPU board to access the signals easily, and a microUSB to USB cable for power. The JLink debugger comes with a 10-pin ribbon cable, and a microUSB to USB cable to connect to the […]