If you want to develop an application without prior installation of the ADT, you still can employ the Cross Development Toolchain, the QEMU emulator, and a number of supported target image files. You just need to follow these general steps:
Install the cross-development toolchain for your target hardware: For information on how to install the toolchain, see the "Using a Cross-Toolchain Tarball" section in the Yocto Project Application Developer's Guide.
Download the Target Image: The Yocto Project supports several target architectures and has many pre-built kernel images and root filesystem images.
If you are going to develop your application on
hardware, go to the
machines
download area and choose a target machine area
from which to download the kernel image and root filesystem.
This download area could have several files in it that
support development using actual hardware.
For example, the area might contain
.hddimg
files that combine the
kernel image with the filesystem, boot loaders, and
so forth.
Be sure to get the files you need for your particular
development process.
If you are going to develop your application and
then run and test it using the QEMU emulator, go to the
machines/qemu
download area.
From this area, go down into the directory for your
target architecture (e.g. qemux86_64
for an Intel®-based
64-bit architecture).
Download kernel, root filesystem, and any other files you
need for your process.
Develop and Test your Application: At this point, you have the tools to develop your application. If you need to separately install and use the QEMU emulator, you can go to QEMU Home Page to download and learn about the emulator. You can see the "Using the Quick EMUlator (QEMU)" chapter for information on using QEMU within the Yocto Project.