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TotalCross Yocto Project Reference Embedded Linux Platform

Setup instructions

Required Packages for the Build Host

The list of packages you need on the host development system can be large when covering all build scenarios using the Yocto Project. See Yocto Project Reference Manual for details.

Getting the repo tool

The first step is to download and prepare all the Yocto Project environment, you need to have the repo tool installed in your host machine.

For Debian/Ubuntu Linux distro you can install it running:

sudo apt install repo

If you’re using other Linux distro or the repo tools is not in the repository you can download directly from upstream and set your distro as shown below:

mkdir ~/bin
curl http://commondatastorage.googleapis.com/git-repo-downloads/repo > ~/bin/repo
chmod a+x ~/bin/repo
PATH=${PATH}:~/bin

Download the platform source

The next step is to download the BSP source code, we have a platform to fetch all files that is necessary to build the project.

To download all sources run the following commands:

mkdir yocto-project-reference-platform
cd yocto-project-reference-platform
repo init -u https://github.com/TotalCross/yocto-project-reference-platform.git -b dunfell
repo sync

At the end of the commands, you have every metadata you need to start work with.

Preparing the environment

Before starting to work you need to load the Yocto Project variables to run bitbake command:

source setup-environment build

Note that you need to run the command above for all new terminal, the loaded variables are only visible to the terminal that you source the setup-environment script.

Building the image

To build the image run:

bitbake totalcross-demo-image

This process can take a long time depending on your host machine.

When the image is ready, the resulted files are available in the deploy directory. By default it is located in build/tmp/deploy/images/$MACHINE.

Flash core-image-base to SD card

To flash the image to SD card run:

zcat build/tmp/deploy/images/$MACHINE/totalcross-demo-image-$MACHINE.wic.gz | sudo dd of=/dev/sdX bs=4M

The sdX if the device that SD card was addressed in you host machine, you can check your using

References