You can use Qt Creator and Digi Embedded Yocto to create Qt applications for your platform.

See Create and build projects for more information on how to build rootfs images.

For DEY versions prior to dey-2.2-r3, special rootfs images including the qtcreator-debug and debug-tweaks features must be compiled and flashed in the device. To do so, add these lines to your conf/local.conf project file:

conf/local.conf
# Required features to enable Qt-Creator debugging:
EXTRA_IMAGE_FEATURES = "debug-tweaks qtcreator-debug"

# Specify the SSH server used by Qt-Creator debug feature (use dropbear):
VIRTUAL-RUNTIME_qtcreator-debug-ssh-daemon = "dropbear"
For more information, see the Qt Creator Manual at http://doc.qt.io/qtcreator/.