Qt5 Creator files to deploy

To add files (or in this case the actual qt executable file) to the embedded device, they need to be added to the *.pro file.  The example below shows a basic qttest application being added to the root folder.

Deployment step to kill Qt5 running process

Normally when running your Qt application on a remote linux device, once it's started it needs to be killed before you re-upload and run it.  The easiest way to do this is to add a step to kill the process before uploading.  See the picture below, and the section labeled Run custom remote command.  This will prevent you from having to shell into the embedded device and manually killing the process.

Nitrogen6_MAX yocto krogoth Qt5

How I got Qt5 working on nitrogen6_max using yocto krogoth

note of caution: I've only tested this very little. I'm not sure if everything I've done is correct.
I'm using Debian 8 as my host system.

Install dependencies:

apt-get install gawk wget git-core diffstat unzip texinfo gcc-multilib build-essential chrpath socat libsdl1.2-dev xterm

Install repo:
su to root
curl http://commondatastorage.googleapis.com/git-repo-downloads/repo > /usr/bin/repo
chmod a+x /usr/bin/repo

Get Yocto krogoth:
mkdir ~/krogoth
cd ~/krogoth
repo init -u http://github.com/boundarydevices/boundary-bsp-platform -b krogoth
repo sync

Setup directories:
sudo mkdir -p /opt/freescale/yocto/imx
sudo mkdir -p /opt/freescale/yocto/sstate-cache
sudo chmod -R 777 /opt/freescale

Build krogoth:

cd ~/krogoth
MACHINE=nitrogen6x . setup-environment core-image-base

update the following file: ~/krogoth/core-image-base/conf/local.conf

using this file: local.conf

bitbake core-image-base

Build Qt5 toolchain:
bitbake meta-toolchain-qt5

Put the sdcard image on a sdcard:
cd ~/krogoth/core-image-base/tmp/deploy/images/nitrogen6x/
su to root
umount /dev/sd*
zcat core-image-base-nitrogen6x.sdcard.gz | dd of=/dev/sd* bs=1M

* needs to be replaced with your drive letter for your sdcard, example /dev/sde1, /dev/sde2, etc)
Once this is done, you can insert sdcard into nitrogen6 and power / boot the device.

Install qt5 toolchain sdk:
cd ~/krogoth/core-image-base/tmp/deploy/sdk
sudo ./poky-glibc-x86_64-meta-toolchain-qt5-cortexa9hf-neon-toolchain-2.1.sh

Note enviroment setup script:
. /opt/poky/2.1/environment-setup-cortexa9hf-neon-poky-linux-gnueabi

Install Qt creator:
download and install - http://www.qt.io/download-open-source/
To start qt creator, I created a script call start_qtc, with the following inside:

. /opt/poky/2.1/environment-setup-cortexa9hf-neon-poky-linux-gnueabi
~/Qt/Tools/QtCreator/bin/qtcreator

Then change it to an executable
chmod +x start_qtc

Setting up qt creator environment:
This is easiest to show in pictures, because there is a lot going on.

I've used pieces from the following websites:

https://boundarydevices.com/jethro-release-of-yocto/
https://community.freescale.com/thread/309578
http://wiki.wandboard.org/index.php/Building_Qt5_using_yocto_on_Wandboard