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Using qDebug

GUI debuggers are the norm these days, however, I still feel the urge to do a little printf-debugging now and then. It might be wrong, it might be silly but it works.

I like to develop the odd graphical application and I like use Qt. For Qt, the nice Norwegian Trolls have provided the qDebug function. You can use it right away just like your old trusted printf: more>>

Cross Compiling Qt

On of the great aspects of Qt is that it is cross platform. Not only across desktops, but also across devices. The Qt make tool, qmake, can be configured to cross compile for different architectures using different compilers and different settings. How to do all this is reasonably straight forward, but you need to know how to get started. more>>

A Quick Look at Qt Quick

Qt 4.7 has not been released yet, but the curious can download the beta or even grab a snapshot from git. The big news in this point seven release is Qt Quick - a new approach to user interfaces. more>>

QVFb in action

The Qt Virtual Framebuffer

Qt comes with a handy tool that lives a rather anonymous life in the tools/qvfb directory. This tool does wonders when it comes to demoing, training users and creating documentation. more>>

The power on button

A Look at minit

Sys-V init has long been the standard solution for booting. It's kind of easy to work with, it kind of works and everybody kind of knows it. However, being open minded, let's look at an alternative approach. more>>

Cross Compiling Options

What is your strategy on cross compilation toolchains? Here we explore a few options: more>>

DIY - requires you to manually start each step, unless you're comfortable enough to script the process. As each step takes ages, this can be a tedious job. However, it gives you full control and insight into each step.

Controlling the Humidity with an Embedded Linux System

Using an inexpensive embedded Linux board and a few extra devices, you can control things like room humidity. more>>

Introduction: a Typical Embedded System

It's not always clear what separates ordinary Linux from embedded Linux. This article takes a look at the parts that make up a typical embedded system, starting with the bootloader and ending with end-user applications. more>>

Playing with the Player Project

The Player Project is a robot-control software framework for interfacing with PC-based robots. Learn how to use it to interface with sensors, actuators and even full research robots. more>>

Reducing Boot Time in Embedded Linux Systems

Using some reasonably simple techniques, you may be able to reduce dramatically the boot time of your embedded Linux system. more>>

Linux Makes Phones Even Cheaper

Purple Labs, a company based in France with a multinational management team, is pushing Linux mobile phones outward in capabilities and downward in price. more>>

FreeRTOS - A Mini Real Time Kernel

If you're having trouble getting Linux to run on that 8-bit processor with 32KB of memory don't despair, there are open-source alternatives. FreeRTOS is an open source real time kernel that has been ported to a number of microprocessors. The website lists ports to over 40 different processor/compiler combinations. more>>

System Minimization

Strategies for reducing Linux's footprint, leaving more resources for the application or letting engineers further reduce the hardware cost of the device. more>>

GCC for Embedded Engineers

Read along to understand how GCC works, find out what all those other programs in the toolchain directory do, and learn some tips and tricks to become more comfortable with most indispensable tool in your project. more>>
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