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== Introduction ==
The test bed used for this application note is composed of the same hardware/software platform delivered along with the [[DESK-MX6UL-L | DESK-MX6UL-L]]. About Buildroot, the version [https://buildroot.org/downloads/buildroot-2022.05.tar.gz buildroot-2022.05] was used.
==DonwloadingVirtual Machine requirements ==The building process may requires higher resources than the original [[DESK-MX6UL-L | DESK-MX6UL-L]] MVM settings: this depends on the package selected in the <code>.config</code> file and theirs build resources. For example: building the <code>qt-webkit</code> package will require a lot of resources so it is better to add more CPUs and more RAM to the VM like the following settings: [[File:DESK-MX6UL-MVM_buildroot.png|thumb|center|600px| MVM with 10 CPU cores and 16GB of RAM]] ==Downloading, configuring and building==
This process is straightforward. Once the file [https://buildroot.org/downloads/buildroot-2022.05.tar.gz <code>buildroot-2022.05.tar.gz</code>] is downloaded and decompressed on your Linux host machine, get into the Buildroot directory, and run <code>make menuconfig</code>.
Here below a list of most important selected packages:
* '''Qt5.15''' libraries including: <code>fontconfig</code>, <code>DBus</code>, <code>qt5declarative</code>, <code>qt5multimedia</code>, <code>qt5quickcontrols</code>, <code>qt5quickcontrols2</code>, <code>qt5sensors</code>, <code>qt5serialbus</code>, <code>qt5serialport</code>, <code>qtextserialport</code>, <code>Qt SQlite</code> and the very important <code>qt5webkit</code> (and <code>qt5webchannel</code>, <code>qt5websockets</code>)** <code>qt-webwebkit-kiosk</code> browser can be used for creating a GUI with an embedded browser as a Kiosk application has been included too
* framebuffer utilities like: <code>fbset</code>, <code>fbv</code>, <code>fbgrab</code> and the <code>fb-test</code> application
* '''python3''' interpreter including <code>python3-ssl</code>, <code>python-flask</code>, <code>python-httplib2</code>, <code>python-jinja2</code>, <code>python-pip</code>, <code>python-py</code>, <code>python-pymodbus</code>, <code>python-pymysql</code>, <code>python-pyusb</code>, <code>python-serial</code>, <code>python-requests</code>, <code>python-schedule</code>, <code>python-socketio</code>, <code>python-setupotools</code>
* network applications: <code>avahi</code>, <code>bluez</code>, <code>iptables</code>, <code>iw</code>, <code>ntp</code>, <code>openssl</code>, <code>openssh</code>, <code>vsftpd</code>, <code>wget</code>
* Javascript: <code>angularjs</code>, <code>bootstrap</code>
* package managers: <code>opkg</code>, <code>rpm</code>
=== Build the targets ===