Category: Programming

Posted on by Jean-Luc Aufranc (CNXSoft) - No Comments on Qt Creator 2.6 Release and Qt for Android (Necessitas) Merged to The Qt Project

Qt Creator 2.6 Release and Qt for Android (Necessitas) Merged to The Qt Project

Qt Creator Version 2.6.0 has been released yesterday. The most notable change is the introduction of “Kits” to replace “Targets” that were used in previous versions of Qt Creator. Previously, “Targets” such as Desktop or Remtoe Linux were added to a project’s configuration in order to use predefined configurations. “Kits” extend the use of “Targets” and contain settings for which device type to develop for, the sysroot, the compiler, the debugger and the Qt version to use, and possibly even more settings. Users can define their own “Kits”, which should facilitate control of build and run environment and projects sharing. Other changes include full screen support on Mac OS Lion and later, numerous fixes and additions to the qrc file editor, direct rebuilding and cleaning of .pro file based subprojects, more C++11 fixes, and more. On the platform side, QNX/Projects support was added, but Symbian (no maintainer) and Meego (due to […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 25 Comments on Getting Started with 64-bit ARM Development: Hello World and Linux on ARMv8 Fast Models

Getting Started with 64-bit ARM Development: Hello World and Linux on ARMv8 Fast Models

At the end of last year, ARM announced ARMv8, the first ARM 64-bit ARM archtecture, and last week at ARM Techcon 2012, ARM announced the first ARMv8 cores: Cortex A53 and A57. But since there’s no silicon at the moment, what if you wanted to develop code running on ARMv8 before the hardware is available? The answer is: Fast Models, a Virtual Platform (VP) to accelerate software development. This is especially important for ARMv8 since hardware is not expected to be available for another year. In this post, I’ll first show how to run “Hello World!” in ARMv8 fast models, then we’ll run ARM Linux 64-Bit (Aarch64) in the virtual platform. ARMv8 Foundation Model In order allow the developer’s community to program for ARMv8 (Cortex A53/A57 cores), ARM has made ARMv8 Foundation Model, a virtual platform, available free of charge. This v8 Foundation model provides a basic ARMv8 platform environment […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 31 Comments on Rockchip RK3066/RK30xx Processors Documentation, Source Code and Tools

Rockchip RK3066/RK30xx Processors Documentation, Source Code and Tools

Rockchip RK3066 (part of RK30xx family) is a Chinese dual ARM Cortex A9 SoC targeting multimedia products such as tablets (e.g. Cube U30GT), mini PC (e.g UG802, MK808) and in theory set-top boxes, but I can’t find any products based on this Rockchip processor. It seems mini PCs/ HDMI TV sticks have taken over this market. RK3066 Processor The processor features two ARM Cortex A9 clocked at up to 1.6 Ghz with a quad core Mali-400MP GPU. It can support 1080p (3D) encoding/decoding, provides HDMI 1.4a, VGA, composite, component and LVDS video outputs (Dual display support),  USB 2.0 Host and OTG ports, a MAC interface (Ethernet), and much more… Here are the key features of Rockchip RK3066 processor: Dual Core A9 + Quad Core Mali-400MP GPU 2 banks, 8/16 bit Nor flash / SRAM interface 8 banks, 8/16 bit async NAND flash, LBA NAND flash and 8-bit sync ONFI NAND […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 38 Comments on AMLogic Releases AML8726-MX Linux 3.0.8 Source Code

AMLogic Releases AML8726-MX Linux 3.0.8 Source Code

While doing a Google search to locate the open Linux page of AMLogic, I noticed another link reading “Amlogic AML8726-MX Linux kernel code released“. Interesting. So AMLogic appears to have released the kernel source code for their latest dual core Cortex A9 processor at the beginning of August and the tarball is available from their open source site:  kernel-common-2012-08-03-git-a63244fb9c.tar.gz. A github user (fards) also imported the code to github, but he’s not affiliated with AMLogic, so don’t expect commits from AMLogic there. Let’s retrieve it:

AML8726-MX is codenamed MESON6 in the source code, and the code is in arch/arm/mach-meson6/, but let’s see if we can find a config file in arch/arm/configs. Yes! There are 4: meson6_android_defconfig – Android config file (Single core) meson6_defconfig – Linux config file (Single core) all Android config disabled. meson6smp_android_defconfig – Android config file with smp (symmetric multiprocessing) support meson6smp_defconfig – Config file with smp […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 2 Comments on 15 Linaro OnAir Sessions about Android, Linux, Debugging and Software QA

15 Linaro OnAir Sessions about Android, Linux, Debugging and Software QA

Linaro has planned 15 virtual conferences between Monday, August 13 and Saturday, August 18, 2012. Those online events will deal with the work done at Linaro, including software optimization, software QA, Android and Linux kernel development, Open Embedded on ARMv8 and more. Those conferences are public and anybody can join. All times indicated below are GMT+07:00 (Bangkok), so you can either mentally convert the time (recommended), or click on the links below to get the date and time in your timezone. Exploring The Performance Impact of PGO and LTO on ARM– Mon, August 13, 5:00 PM Abstract: Profile guided and linked time optimisation (PGO and LTO) are two of GCC’s cross program optimisations that should improve both the startup and runtime of typical programs.  We know that they basically work on ARM but don’t know the potential speed up or the work involved in proper support. This session will cover […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 3 Comments on Qualcomm Snapdragon S4 Pro Mobile Development Platform Is Now Available for $1299

Qualcomm Snapdragon S4 Pro Mobile Development Platform Is Now Available for $1299

A few weeks ago, Qualcomm showcased their new Snapdragon S4 APQ8064 processor with their tablet reference design at Uplink 2012. The platform (Snapdragon S4 Pro Mobile Development Platform for tablets (MDP/T)) is now available to developers for 1299 USD. This development tablet based on APQ8064 processor with Adreno 320 GPU comes with 2GB LPDDR2 RAM and 32 GB flash, features a 10.1” WXGA Multi-touch display, and runs Android 4.0. It will allows developers and manufacturer to develop, test, optimize and showcase applications and games for a wide range of pre-commercial Android devices. Here are the technical specifications of the Snapdragon S4 Pro APQ8064 MDP/T: Processor APQ8064 @ 1.5 Ghz (Quad core) PM8921+ PM8821 (PMIC) WCN3360 (WLAN/BT/FM) WCD9310 (Audio) WGR7640 (GPS) Graphics Adreno 320 graphics processing unit (GPU) Display 10.1” 1366×768 display True multi-touch capacitive touch screen Video 1080 High-definition video recording and playback up to 30 frames per second Stereoscopic […]

Posted on by Jean-Luc Aufranc (CNXSoft) - No Comments on AnDevCon IV Classes and Workshops Schedule

AnDevCon IV Classes and Workshops Schedule

AnDevCon is a technical conference for software developers building Android apps, and the fourth Android developer conference will take place in San Francisco on December 4-7, 2012. The organizers have already listed the schedule, including details about the workshops and classes which will take place at the conference. The 4th of December is reserved for workshops, and the other 3 days can be spent on shorter classes. All workshops will provide sample code, as well as most classes, excluding the overview session and business related sessions. There will be three full day Android workshops: Android Development Boot Camp – Hands-on introduction to Android application development and the tools essential to the process. Beyond an introduction to the basics, this workshop also covers some of the common hurdles met with development, and how to overcome them. You will also have the opportunity to build an Android app of your own where […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 24 Comments on Building the Linux Kernel 3.0.8 For Telechips TCC8925 mini PCs (CX-01, Z900, TizzBird N1…)

Building the Linux Kernel 3.0.8 For Telechips TCC8925 mini PCs (CX-01, Z900, TizzBird N1…)

Yesterday, we got Linux kernel 3.0.8 source code from Telechips, as well as some files related to Android 4.0 (Webkit + OMX). Today, I’ve had a look at the kernel source code and found a few very interesting things. First let’s get the code from github:

Good news! The code for the latest Telechips TCC892X is present in arch/arm/mach-tcc892x, and there is support for 3 types of boards: board-m805_892x – TCC8923 M805 board board-tcc8920 – TCC8920 evaluation board board-tcc8920st – TCC8920 STB evaluation board TCC8920 STB evaluation board appears to be relevant to products such as Diyomate A6, but if it’s also used for TCC8925 HDMI Dongle such as CX-01 mini PC, Zero Devices Z900 or ValuePlus TizzBird N1. Now let’s have a look at the default config directory for arm (arch/arm/configs):

Nice! tcc8925st_dongle_defconfig and tcc8925st_donglehs_defconfig look particularly interesting! A quick comparison shows that the only difference is […]

EmbeddedTS embedded systems design