Build QT6 Embedded Image for Raspberry Pi 4
1.Install the following packages on your Linux Host (Tested on Manjaro):
repo, cpio, diffstat, chrpath, git-lfs, rpcsvc-proto
2. Create a build directory in your home Folder:
mkdir ~/yocto cd ~/yocto
3. Go to https://code.qt.io/cgit/yocto/boot2qt-manifest.git/tree/ and download the manifest XML
of the version you want to build. In this case: v6.2.2.xml
wget https://code.qt.io/cgit/yocto/boot2qt-manifest.git/tree/v6.2.2.xml
4. Initialize and sync the repository:
repo init -u git://code.qt.io/yocto/boot2qt-manifest -m v6.2.2.xml repo sync
5. Configure the build environment by setting the MACHINE value:
| Raspberry Pi | raspberrypi |
| Raspberry Pi 2 | raspberrypi2 |
| Raspberry Pi 3 | raspberrypi3 |
| Raspberry Pi 4 | raspberrypi4 |
| Raspberry Pi 4 64-bit | raspberrypi4-64 |
| Raspberry Pi Zero | raspberrypi0 |
export MACHINE=raspberrypi4 source ./setup-environment.sh
6. Build the Raspberry Pi 4 Image:
bitbake b2qt-embedded-qt6-image
After successfully build, you can find the image here:
–> yocto/build-raspberrypi4/tmp/deploy/images/raspberrypi4/
7. Build the SDK, you can use to build your code with QTCreator:
bitbake meta-toolchain-b2qt-embedded-qt6-sdk
After successfully buils, you can find the SDK here:
–> yocto/build-raspberrypi4/tmp/deploy/sdk/
8. Install the SDK on your Linux Host:
cd ~/yocto/build-raspberrypi4/tmp/deploy/sdk/ ./b2qt-x86_64-meta-toolchain-b2qt-embedded-qt6-sdk-raspberrypi4.sh
Enable Wifi in b2qt-embedded-qt6-image (on RPI)
1. Edit the wpa_supplicant.conf file:
vi /etc/wpa_supplicant.conf
like this (your password, your SSID:
ctrl_interface=/var/run/wpa_supplicant
ctrl_interface_group=0
update_config=1
network={
ssid="<yourSSID>"
psk="<yourPassword>"
key_mgmt=WPA-PSK
}
2. Create a script to unblock the wifi device, restart wpa_supplicant and start dhcp on wlan0
vi /etc/startwifi.sh
with the following content:
#!/bin/sh killall wpa_supplicant sleep 1 /usr/sbin/rfkill unblock wlan sleep 1 wpa_supplicant -B -iwlan0 -c/etc/wpa_supplicant.conf -Dnl80211 sleep 1 udhcpc -i wlan0 : exit 0
chmod 755 /etc/startwifi.sh
3. Create Systemd Service File:
vi /lib/systemd/system/rfkill-unblock-wifi.service
with the following content:
[Unit] Description=RFKill-Unblock WiFi Devices After=systemd-user-sessions.service [Service] User=root Type=oneshot ExecStart=/etc/startwifi.sh ExecStop= RemainAfterExit=yes [Install] WantedBy=multi-user.target
4. Enable the systemd service:
systemctl enable rfkill-unblock-wifi.service