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=== Q: How can I reduce the clock frequency and RAM amount to evaluate the performances of the low-end versions of the Diva SoM? ===
'''A''': please refer to the following page on the '''DAVE Embedded Systems''' Developer's Wiki: [[Software_Manual_(Diva)#Diva_Frequency_Scaling DIVA_Frequency_Scaling | Frequency scaling]] and [[Software_Manual_(Diva)#Forcing_the_kernel_to_use_a_limited_amount_of_RAM | Forcing the kernel to use a limited amount of RAM]]
=== Q: How can I work with the XYZ peripheral/interface? ===
=== Q: I need the QT libraries for my application. Does the DIVELK contains the QT libraries? Are there demos and examples (with included source code)? ===
'''A''': the root file system provided with the DIVELK (/home/dvdk/delkdivelk/rfs/tisdk on the DVDK virtual machine) contains a pre-built version (4.8.0) of the QT libraries:
<pre>
dvdk@dvdk-vm:~/delkdivelk/rfs/tisdk/usr/lib$ ll libQ*
....
....
...
...
dvdk@dvdk-vm:~/delkdivelk/rfs/tisdk/usr/lib
</pre>
The root file system also provides a lot of pre-built demos and examples (with the related source code and project files), contained in the following directories:
* /home/dvdk/delkdivelk/rfs/tisdk/usr/bin/qtopia/demos* /home/dvdk/delkdivelk/rfs/tisdk/usr/bin/qtopia/examples The Matrix-Gui application (http://processors.wiki.ti.com/index.php/Matrix_Users_Guide) that launched automatically after DIVELK startup is based on QT and can directly show some demos (simply touching the QT icon). Moreover, additional examples can be launched, for example the "calculator" QML demo: <pre>/etc/init.d/matrix-gui-2.0 stopcd /usr/bin/qtopia/demos/declarative/calculator./calculator -qws</pre>
For additional information, please refer to the following pages:
* http://qt-project.org/doc/qt-5/gettingstarted.html
=== Q: How can I configure the Diva system to boot from network? ===
'''A''': Booting from network is very helpful during the software development (both for kernel and applications). The kernel image is downloaded via TFTP while the root file system is remotely mounted via NFS from the host. It is assumed that the development host:
* is connected with the target host board through an Ethernet LAN
