Xilinx KV260 -petalinux 2021.1 - Build Vitis AI Libraries

Installing Petalinux 2021.1

Download the latest PetaLinux from the Xilinx download page: link

Navigate to the downloads folder and install using the executable installer file:

$ cd Downloads

Allow permissions for the installer and run the executable:

$ sudo chmod +x ./petalinux-v2021.1-final-installer.run
$ ./petalinux-v2021.1-final-installer.run -d <install destination>

Download KV260 BSP

Download the KV260 BSP from the Xilinx Downloads page: link

Environment setup

Source the settings.sh file inside of the install directory for PetaLinux:

$ source <install destination>/setting.sh

Create the PetaLinux project from the BSP

Run the following command to create the project using the BSP file we downloaded earlier:

$ petalinux-create -t project -s /home/<user>/Downloads/xilinx-k26-starterkit-v2021.1-final.bsp -n kv260_RealSense

Once created step into the folder:

$ cd kv260_RealSense

Set Board Variant

So PetaLinux knows we're using the starter kit we need to set the variable using this command:

$ echo 'BOARD_VARIANT = "kv"' >>  project-spec/meta-user/conf/petalinuxbsp.conf

Download Vitis Meta Layer

git clone https://github.com/Xilinx/meta-vitis-ai.git -b rel-v2021.1

Add Vitis Meta Layer to Project

$ petalinux-config --> yocto settings --> user layer

Add Path to "meta-vitis-ai"

Add Vitis Meta Layer to user packages

$ echo "CONFIG_packagegroup-petalinux-vitisai" >> project-spec/meta-user/conf/user-rootfsconfig

Enable package in rootfs

$ petalinux-config -c rootfs

user packages --> packagegroup-petalinux-vitisai

Remove dnndk package from packagegroup-petalinux-vitisai.bb

$ nano components/yocto/layers/meta-petalinux/recipes-core/packagegroups/packagegroup-petalinux-vitisai.bb

Fix minor known bugs before build

Navigate to petalinuxbsp.conf

Make sure the your file is identical to the one shown:

Build PetaLinux Project

Run the following command to run the PetaLinux build process:

$ petalinux-build

Package up the PetaLinux files

Create the SD card image with this command:

$ petalinux-package --wic --bootfiles "ramdisk.cpio.gz.u-boot boot.scr Image system.dtb"

The generated image file will be located at images/linux/petalinux-sdimage.wic.