Compatibility between Yocto and Qt 6 Versions
We can build the Qt versions from 6.2 to 6.5 with the meta-qt6 layer for the Yocto versions 3.1 to 4.1. This is a big time saver. Yocto \ Qt6.56.46.36.24.2 (Mickledore)TT--4.
Burkhard Stubert
Latest posts — page 2
Using Qt 6 under LGPLv3
Most embedded Qt HMIs don't need the expensive commercial license but can be built with the free LGPL-3.0. Static linking is allowed with LGPL. B2B products need not allow the installation of modified Qt libs. Some Qt modules can be used under GPL albeit in separate processes.
The Key Principles of Continuous Delivery
In the seminal book Accelerate, Forsgren and her co-authors provide empirical evidence that Continuous Delivery has a positive impact on the performance of software development organisations. If organisations neglect some of the principles and practices of Continuous Delivery, their performance
Creating A Custom Yocto Layer
After having built the reference Linux image from a SoM, SoC or terminal maker and having run it on the board, we must inevitably custom-tailor this image to our needs. We must create our own Yocto layer. We must remove
Installing Linux Images on Toradex Verdin Boards
In the post Setting Up Yocto Projects with kas, we built the Linux image for the Toradex Verdin iMX8M Plus. It's time to flash the image on the board using the Toradex Easy Installer (TEZI). It's
Parking at Munich Airport: An Awful Experience
The parking experience at Munich Airport is awful. It is too easy to do something wrong, which can only be remedied by calling support. The bad user experience is caused by a bad system architecture. The pieces for a better
Can We Use Trunk-Based Development for Legacy Software?
Not right away! Trunk-Based Development requires that the software builds and passes enough tests, before we integrate our changes into the main branch (a.k.a., trunk). We have enough tests, if breaking the software is highly unlikely. By definition,
Applying TDD to Classes Accessing Files
We start with unit tests reading a file line by line with QFile. Unit tests accessing the file system are not considered unit tests, as they may be slow and may depend on each other in surprising ways (see A
Implementing Qt Signals and Slots in Pure C++
Signals and slots are my favourite Qt feature, as they make loose coupling between components or between layers super easy. I miss them most when I must write pure C++ code without the Qt goodies. I invite you to follow
Applying TDD to HAL Drivers with Memory-Mapped I/O
A client recently asked me to help them get a legacy HAL driver under test. They want to use TDD to maintain and extend the driver. We ran into a couple of problems, because the tests run on a 64-bit
Visualising the Architecture of Qt Embedded Systems: Context and Container Diagrams
I never got the hang of UML: overly complicated, hard to understand, too close to code. Hence, I was skeptical about C4 diagrams when I first heard about them. When I saw Simon Brown using them in his talk Modular
Setting Up Yocto Projects with kas
Kas makes the setup of a Yocto build environment super simple and super fast. We call kas with a project configuration file: kas-container build ./eu-terminal-distro.yml. Kas starts a Docker container, clones the layer repositories, initialises the Yocto configuration files