LD_LIBRARY_PATH=/proc/boot:/lib:/usr/lib:/lib/dll:/usr/lib/graphics:/usr/lib/graphics/am335x:/opt/qt5/libĬhange the path for Screen at the end of LD_LIBRARY_PATH according to the directory for your Screen drivers. Extract the archive and copy everything under the armle-v7/ directory to the root of the SD card.īy now your SD card should contain something like this: Obtain, again from the EAP Foundry27 project. Thankfully a build of it for QNX is provided alongside the Qt5 binaries on Foundry27. Next comes ICU, which is the localisation back end in Qt5. Extract the archive and from opt/qt5/ copy the following directories to opt/qt5/ on the SD card: Create the directory /opt/qt5 in the root directory of the FAT32 FS on the SD card. Obtain the file Qt5-5.1.0-qnx-armv7le-qcc-QNX6.5. or similar from the EAP Foundry27 project. An SD card with FAT32 is only one way of accomplishing this, alter steps which follow regarding the SD card accordingly if you’re not using an SD card for your writable file system. Now you can copy the Qt libraries to the SD card or other writable FS, and not have to worry about rebuilding and copying a huge IFS image everytime you want to make changes to it. On the Starter Kit board I mount the FAT32 partition on the SD card over / using the following command in the IFS startup script:Įnsure that the SD card driver is already started before that point, using the dos exe=all,umask=0077 option. The simplest way to get a fully writable filesystem tree in QNX is to mount a read-write filesystem over /. In the simplest scenario, only a writable /tmp is needed to copy the binary to and a read/writable /root which the QNX remote deployment steps for a QNX device executes some commands in. Secondly, when it comes to remote debugging from Qt Creator later, it will expect to be able to copy files to various remote paths on your target via ssh, and the Image File System mounted in the IFS image is non-writable. Now, your first thought might be to add the binaries to the IFS image, there are two problems with this.įirst, your generated IFS file becomes big and unwieldy, not only that but the more stuff you put in there, the more often you’ll need to re-write that large image to your boot medium for your board when you want to change something. ![]() Texas Instruments AM335x Starter Kit board In this example, I used the Texas Instruments AM335x Starter Kit board. Lets say as a pre-requisite you have built the QNX BSP for your board, added Screen drivers and libraries to it, have QNX running, can run gles2-gears and see the gears spinning on whatever display is attached to the board. Joining that program gives access to a Foundry27 project which also provides Qt binaries built for Screen on QNX. At the time of writing, QNX’s UI Early Access Program is the only way to get hold of Screen driver binaries. In order to follow this guide, you’ll need to be using a board (Or SoC at least) which has Screen support in QNX 6.5.0 SP1. I’ll then describe the setup of Qt Creator briefly after that. However, that tutorial and others like it don’t tend to cover the setup needed within a non-Blackberry QNX system on the board side, which is where I will concentrate the attention here. ![]() Setting up Qt Creator for QNX is covered elsewhere online, such as on the Qt Project website. Or perhaps you just like using Qt Creator. Others may have an application which is deployed across various target platforms, and don’t want to switch to a whole seperate IDE every time they want to try out new features in their Qt app on the QNX build. So given that Qt will be the obvious choice for GUI development on QNX, developers experienced with Qt who find themselves working with the platform will likely want to stick with the Qt IDE for developing their applications. The Photon GUI subsystem has been obsoleted by virtue of the fact that it doesn’t work with Screen, and so Qt is fast becoming the default GUI solution on QNX, especially as it now has Qt 5 support for Screen. The entire graphics driver stack on the platform (libgf, io-display and Photon) is being replaced by a new framework called Screen (No relation to the GNU tool of the same name). Well, the GUI landscape on QNX is changing. ![]() So why would anyone need to use Qt Creator to debug with QNX? Various plugins in the Eclipse based Momentics IDE, included as part of the QNX development suite, provide one click download and debugging, as well as all sorts of application and system level profiling and analysis. The microkernel based RTOS, QNX, has remote debugging on the target pretty much nailed down out of the box. Here is a tutorial on how to set up your QNX image to make it work with Qt Creator, then some explanation on configuring Qt Creator itself for QNX with Qt 5.
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