Every SoM comes with a makeshift Linux system. Every manufacturer must add OTA updates, security measures, remote access, GUI frameworks and more. That's a lot of duplicated work. This would be much more efficient, if a SoM maker provides a Linux with all the features ready for use by manufacturers. Toradex does this with Torizon. We show how manufacturers can benefit from this groundwork with minimal effort. Torizon even runs on non-Toradex SoMs. SoM = Solutions on Module.
Many embedded Linux systems use a Wayland compositor like Weston for window management. Qt applications act as Wayland clients. Weston composes the windows of the Qt applications into a single window and displays it on a screen. I still have
Once we have removed an item from a BitBake variable, we cannot re-append it. The evaluation of the following three assignments of the variable BB_VAR yields the same result, no matter in which order the assignments are executed. # Code
Unlike consumer devices, machines, ECUs or medical devices are in the field for 15 or more years. There inevitably comes the time in their life, when you must update their boot loader. I'll show you how to do
How hard can it be to write a Yocto recipe for building a Qt application with CMake? Actually, it turns out to be pretty hard. I have seen my fair share of slow-and-dirty workarounds (nothing is ever quick with Yocto,
We keep the source code of our applications and libraries in private repositories. Quite a few SoM and terminal makers do the same with their Yocto layers and their additional software. We typically use a Docker container to build the
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.
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
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
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
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
Creating an architecture means answering many questions about the ecosystem, in which the Qt embedded system operates. While the questions are very similar for all Qt embedded systems, the answers and their priorities differ. So, you should be able to
Operator conditions like light, temperature, water, dust and vibration are a rich source for constraints and qualities of a system architecture. They affect the SoC, display and connector selection, the touch gesture recognition, the communication between system components, the cabling,