CNX Software - Embedded Systems News

November 23, 2011June 18, 2019 by Jean-Luc Aufranc (CNXSoft) - No Comments

Remmina : Remote Connection via RDP, VNC, SSH, XDMCP or SFTP

If you need to connect to both Windows and Linux machines remotely, Remmina is what you need. It is an application that can remotely connect to server using VNC, SSH, XDMCP, SFTP and RDP protocols. So that you can connect to a Windows machine using the default RDP (Remote Desktop Protocol) protocol without installing a VNC server. In the screenshot below I setup a Windows RDP and a VNC connection to 192.168.0.102. There are plenty of options. Here’s a screenshot of Remote Desktop Preferences for the RDP client. To install in an Ubuntu or Debian distribution:

sudo apt-get install remmina

1	sudo apt-get install remmina

To install it in Fedora:

sudo yum install remmina

1	sudo yum install remmina

November 22, 2011 by Jean-Luc Aufranc (CNXSoft) - No Comments

Midgard architecture for Embedded GPUs (Mali-T604 / Mali T658)

I’ve attended a webinar entitled “Harness the power and flexibility of the Midgard architecture for Embedded GPUs” presented Steve Steele, Product Manager at ARM Media Processing Division and sponsored by EETimes. Steve starts to talk about the current GPU architecture “Utgard” used in Mali-200, Mali-300 and Mali-400MP which allows resolutions up to 1080p and are used in many smartphones today including Samsung Galaxy S2 (Mali-400MP) which provides great graphics performance. He then explains how mobile devices are used today and what performance we may except in the future: Mobile As Main compute platform: New UI and Augmented Reality Social Networks and emails Content Creation/consumption 1 Device to multiple screen (e.g LCD screen and TV via HDMI) Evolving Processing Demand: Graphics Complexity multiplied by 25 Increase in screen size (1080p resolution support). Graphics API: Khronos OpenGL ES, Microsoft DirectX 11 Compute API: OpenCL, Renderscript Compute and Direct Compute. After this overview, […]

November 22, 2011November 22, 2011 by Jean-Luc Aufranc (CNXSoft) - No Comments

ChromeBooks Get Cheaper and Chrome OS Update

Google announced that the Wi-Fi only version of the Samsung Chromebooks Series 5 and Acer Chromebooks will drop by 50 USD to to 300 USD. Apparently the Chromebooks sales are not going so well. This may be improving however, as the Samsung Series 5 Wi-Fi 12.1-Inch Chromebook currently ranks 25 in Netbooks (Amazon US) and Acer AC700-1099 Chromebook (Wi-Fi) ranks quite well (maybe after the discount) at position 9 in Netbooks. Still, even after this discount, it seems difficult to justify the price compared to a “real” netbook with hard disk (the Chromebooks use the cloud for storage) and a few other extra features. I have an Acer Aspire One AOD255E that now costs 279 USD on Amazon with a 250 GB hard disk running Windows 7 starter. Unless the Chromebooks price is reduced to about 200 USD I don’t really see it selling like hot cakes even though they […]

November 22, 2011 by Jean-Luc Aufranc (CNXSoft) - No Comments

Android 4.0 For Blind or Visually Impaired Users

Android 4.0 (ICS) has some interesting features for blind or visually impaired users. With accessibility mode enabled, smartphones such as the Galaxy Nexus will dictate the name of the icons has you touch them and instruct you to tap it if you want to use this application. You can also use 2 fingers to scroll the current and you’ll get audible feedback to know where you scroll. Google has setup a YouTube channel (EyesFreeAndroid) to showcase features and applications available to blind and visually impaired users. Here’s an example below showing the touch exploration tutorial.

November 21, 2011November 21, 2011 by Jean-Luc Aufranc (CNXSoft) - No Comments

Android Variants, Hacks, Tricks and Resources – AnDevCon II

The second Android developer Conference (AnDevCon II) took place about 10 days ago. Karim Yaghmour of OperSys published the presentation slides he used during his two Android presentations. The first presentation was Embedded Android Workshop, the same presentation he did at Android Open 2011. The second presentation “Android Variants, Hacks, Tricks and Resources” slides can be found below. Those 48 slides cover the following: AOSP’s limitations: Rigid, closed development model, excludes many things… Tearing AOSP apart Forks: Cyanogenmod: After-market handset firmware with custom launcher and lots of tweaks and mods… Replicant: 100% open souce with FDroid marketplace. MIUI: Closed source with UI enhancements. Ports: RIM Playbook: OMAP4 Tablet based on AOSP. Bluestacks: Android on Windows 7. Alien Dalvik: Android SDK + Meego SDK integration. Mods: XDA Developers. Melding with “Classic” Linux Stack: Rationale: Lots of available stacks in Linux, Android does not provide everything. Road blocks: File system, Bionic C […]

November 19, 2011November 19, 2011 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

Turn your TV into a Computer with FXI Technologies Cotton Candy USB Stick

FXI Technologies has unveiled a USB stick that turns any screen into an a computer running Android or Ubuntu, and in the future Windows 8 will also be supported. The Cotton Candy will include a Samsung Exynos 4210 dual-core ARM Cortex-A9 CPU clocked at 1.2GHz, with a Quad Core Mali 400MP GPU, like the Samsung Galaxy S2 smartphone. It will also feature 1GB of RAM, a microSD slot capable of holding up to 64GB of flash memory, Wifi and Bluetooth connectivity and an HDMI port. This small device (it measures 8cm x 2.5cm) has decent multimedia capabilities as it can support 1080p decode of MPEG4-SP/H.263/H.264 AVC/MPEG-2/VC1, as well as MP3, AAC, AAC+, Real Audio decoding and JPG, GIF, BMP, PNG pictures. Extra third party codec can also be added. There are 2 main use cases for the Cotton Candy: Connection to a HDMI-capable TV or Display: Connect an HDMI monitor/TV […]

Rockchip RK3568/RK3588 and Intel x86 SBCs

November 18, 2011November 18, 2011 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

WebP Image Format Could Replace JPEG, PNG and GIF

In September 2010, Google announced the WebP image format with lossy compression. Since last month, WebP can also support animation, ICC profile, XMP metadata and tiling. Today, it announced lossless compression and transparency support. WebP could be used as an alternative to JPEG, with 25–34% better compression compared to JPEG images at equivalent SSIM index as well as PNG as it now supports lossless compression and transparency – also known as alpha channel – in both the lossless and lossy modes. On average, Google got a 45% reduction in size when starting with PNGs found on the web, and a 28% reduction in size compared to PNGs that are re-compressed with pngcrush and pngout. Photos typically encoded as JPEG can be encoded in WebP lossy mode to achieve smaller file size. Icons and graphics can be encoded better in WebP lossless mode than in PNG. WebP lossy with alpha can […]

November 18, 2011February 22, 2015 by Jean-Luc Aufranc (CNXSoft) - No Comments

Qualcomm Announces Snapdragon S4 Liquid Mobile Development Platform Tablet

Following their new Snapdragon S4 processors announcement, Qualcomm also unveiled the Snapdragon S4 Liquid MDP Tablet for developers based on MSM8960 with 2GB LPDDR2 system memory, 32 GB eMMC and 1 MB NOR Flash. This reference design features a 10.1-inch 1366 x 768 (16:9) 10-finger capacitive multitouch display, on-die LTE modem, dual 1080p cameras (front:13 MP / rear: 2MP) and another two for 3D, 7 (!) microphones, surround stereo speakers and lots of sensors: dual 3D accelerators, 3-axis gyro, a compass, ambient light and proximity sensor, temperature and pressure sensor and a fingerprint sensor. It also supports haptic feedback thanks to two dual independently-controlled linear vibrator motors. Although Android Honeycomb and ICS can do without, the S4 MDP comes with its fair share of (physical) button: combo volume / zoom rocker, power button, screen rotation lock, home button and reset button. External connectors include a docking station port, micro USB […]