Review the steps under Chapter 3 of the i.MX_Yocto_Project_User'sGuide.pdf on the L4.X LINUX_DOCS to prepare your host machine. Including at least the following essential Yocto packages
$ sudo apt-get install gawk wget git-core diffstat unzip texinfo \ gcc-multilib build-essential chrpath socat libsdl1.2-dev u-boot-tools
Create/Move to a directory where you want to install the AVS yocto build enviroment.
Let's call this as <yocto_dir>
$ cd <yocto_dir> $ repo init -u https://source.codeaurora.org/external/imxsupport/meta-avs-demos -b master -m imx-alexa-sdk-4.9.51-8mq_ga.xml
$ repo sync
Run the avs-setup-demo script as follows to setup your environment for the imx8mqevk board:
$ MACHINE=imx8mqevk DISTRO=fsl-imx-xwayland source avs-setup-demo.sh -b <build_sdk_8M>
Where <build_sdk> is the name you will give to your build folder.
After acepting the EULA the script will prompt if you want to enable:
The following Sound Cards are supported on the build:
The script will prompt to select the soundcard you will be using:
Which Sound Card are you going to use? Synaptics/Conexant .................... 1 VoiceHat (for DSPConcepts SW) ......... 2 Type the number of your selection and press Enter...
Next option is to select if you want to pre-install the AVS SDK software on the image.
Do you want to build/include the AVS_SDK package on this image(Y/N)?
If you select YES, then your image will contain the AVS SDK ready to use (after authentication). Note this AVS_SDK will not have WakeWord detection support, but it can be added on runtime.
If your selection was NO, then you can always manually fetch and build the AVS_SDK on runtime. All the packages dependencies will be already there, so only fetching the AVS_SDK source code and building it is required.
At the end you will see a text according with the configuration you select for your image build.
Next is an example for a Preinstalled AVS_SDK with Synaptics Sound Card support
============================================================ AVS configuration is now ready at conf/local.conf - Sound Card = Synaptics - Alexa SDK 1.7 pre-installed - Wifi supported You are ready to bitbake your AVS demo image now: bitbake avs-image If you want to use QT5DisplayCards, use then: bitbake avs-image-qt5 ============================================================
Go to your <build_sdk> directory and start the build of the avs-image
There are 2 options
$ cd <yocto_dir>/<build_sdk> $ bitbake avs-image
With QT5 support included:
$ cd <yocto_dir>/<build_sdk> $ bitbake avs-image-qt5
The image with QT5 is useful if you want to add some GUI for example to render DisplayCards.
After a build has succesfully completed, the created image resides at
In this directory, you will find imx8mqevk-avs--.sdcard image or imx8mqevk-avs-qt5--.sdcard, depending on the build you chose on Step3.
To Flash the .sdcard image into an SD Card follow the next steps:
Extract and copy the .sdcard file to your SD Card
$ cd <build_sdk>/tmp/deploy/images/imx8mqevk/ $ cp -v imx8mqevk-avs-synaptics-1.7.sdcard.bz2 <workdir> $ cd <workdir> $ sudo bzip2 -d imx8mqevk-avs-synaptics-1.7.sdcard.bz2 $ sudo dd if=imx8mqevk-avs-synaptics-1.7.sdcard.bz2 of=/dev/sd<part> bs=1M && sync $ sync
Properly eject the SD Card:
$ sudo eject /dev/sd<part>
Insert the flashed SD Card on the 8M EVK and boot.
Follow the instructions at startup to setup your AVS and run the SampleApp.
For a more comprehensive understanding of Yocto, its features and setup; more image build and deployment options and customization, please take a look at the i.MX_Yocto_Project_User's_Guide.pdf document from the Linux documents bundle mentioned at the beginning of this document.
For a more detailed description of the Linux BSP, u-boot use and configuration, please take a look at the i.MX_Linux_User's_Guide.pdf document from the Linux documents bundle mentioned at the beginning of this document.
Why do I follow your steps and fail to find the avs-setup-demo.sh script ?