Embedded

Daniel Smith

Qt 5.12 LTS – The road to faster QML application startup

Published Friday January 11th, 2019 | 7 Comments on Qt 5.12 LTS – The road to faster QML application startup
Posted in Dev Loop, Embedded, Performance, Qt Quick 2, Qt Quick 2.0 | Tags: , , , , , , ,

The Qt Company has been running benchmarks like QMLBench for a long time that assist us knowing when a change creates a performance regression, but it’s also important to see how Qt performs at a higher level, allowing components to interact in ways that granular tests like QMLBench can’t show. In this blog post, we’ll […]

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Simon Hausmann

Reducing Application Size using Link Time Optimization

Published Wednesday January 2nd, 2019 | 39 Comments on Reducing Application Size using Link Time Optimization
Posted in Compilers, Dev Loop, Embedded, Performance

We need to talk about calories! Not the calories from your Christmas cookies — those don’t count. But, calories in your Qt application. We’re going to take a look at a technique that is easy to enable and helps you save precious bytes around your application’s waistline. The Old vs The New Traditionally, you would […]

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How to create QBSPs from Yocto builds

Published Friday December 14th, 2018 | Comments Off on How to create QBSPs from Yocto builds
Posted in Dev Loop, Embedded, Yocto | Tags: , , , , ,

In Qt for Device Creation 5.12.0, we have enabled additional content installation via QBSPs (Qt Board Support Packages). A QBSP combines toolchain, target device images and set of Qt Creator configurations for particular device into a single file that can be easily shared and installed using the Qt online installer or the Maintenance tool. Technically […]

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Santtu Ahonen

Board Support Package and Commercial Build Enablers for Qt Partners

Published Friday December 14th, 2018 | Comments Off on Board Support Package and Commercial Build Enablers for Qt Partners
Posted in Biz Circuit, Embedded, Qt, Yocto | Tags: , , , ,

Qt partners can deliver support for Qt on their hardware boards a lot easier. We have improved and created features for Qt Board Support Package (QBSP) and ability to create Qt commercial builds on Yocto. The enablers will be part of both Qt 5.9 LTS and Qt 5.12 LTS. As a partner, building and delivering […]

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Santtu Ahonen

Additional Device Creations targets available under Qt Account

Published Monday December 10th, 2018 | Comments Off on Additional Device Creations targets available under Qt Account
Posted in Announcements, Biz Circuit, Embedded, QPA, Qt Installer Framework, QtCreator, Uncategorized, Visual Studio, Yocto | Tags: , , , , ,

We have enabled an improved ability to add new device creation targets to existing Qt releases outside of Qt release schedules. In practice this means, that Qt for Device Creation license holders can find additional embedded target support packages under their Qt Account downloads, additionally to those available under Qt Online Installer and Maintenance tool. […]

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Santtu Ahonen

Qt Lite updates for Yocto based Embedded Linux users

Published Friday November 30th, 2018 | Comments Off on Qt Lite updates for Yocto based Embedded Linux users
Posted in Biz Circuit, effectiveness, efficiency, Embedded, framework, Yocto

Yocto Embedded Linux based Boot to Qt images now directly support configurations created with Qt Configure Tool. Qt Lite is a concept and project for Qt supporting ever smaller devices and more nimble binaries. Small usually makes things also fast. New in Qt 5.12 LTS is much requested support for Yocto Embedded Linux based Boot […]

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Kari Oikarinen

How to use Qt Lite with Yocto

Published Friday November 30th, 2018 | Comments Off on How to use Qt Lite with Yocto
Posted in Dev Loop, Embedded, Yocto

During the development cycle of 5.12 we’ve been working on making it easier to use Qt Lite in Yocto builds, especially those using our meta-boot2qt layer. Qt Configuration Tool now has the ability to export the set of selected Qt Lite features into files that can be used by the Yocto build to build a […]

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QtKnx: tutorial and updates

Published Wednesday November 28th, 2018 | Comments Off on QtKnx: tutorial and updates
Posted in Automation, Embedded, Internet of Things, Network | Tags: ,

In this tutorial we will demonstrate how to write a KNX client requesting a local device management procedure to a KNX server. We will be using the QtKnx module that comes with the Automation package. Sequence diagram The following diagram presents the sequence of KNX messages exchanged between the client and the server. The third message in the […]

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Allan Sandfeld Jensen

Testing Qt on Emulated Architectures Using QEMU User Mode

Published Friday November 9th, 2018 | Comments Off on Testing Qt on Emulated Architectures Using QEMU User Mode
Posted in Compilers, Debugging, Dev Loop, Embedded | Tags: , ,

Have you ever wanted to test if your application works on ARM, but don’t want to make an image and launch a real device, or wanted to test an architecture you don’t even have hardware for? I have been following a set of instructions I have gathered from various online sources, and have been teaching others […]

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Juha Varelius

Measuring The Impact of Qt on Your Business

Published Monday October 15th, 2018 | 2 Comments on Measuring The Impact of Qt on Your Business
Posted in Announcements, Automation, Automotive, Biz Circuit, Embedded, Internet of Things | Tags: , ,

Today, I wanted to talk to you about a recently conducted Total Economic Study for commercial customers of Qt by Forrester Consulting. Please find the report here. In many ways, Qt has been ahead of its time. Its ability to work on basically anything now truly shines as the Internet of Things (or “Internet of […]

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