# Arm® Automotive Solutions The Arm Automotive Solutions Software Reference Stack is composed of multiple Open Source components which together demonstrate use cases for the automotive sector, including: - The [Runtime Security Engine (RSE)][1] running an instance of Trusted Firmware-M, which offers boot, cryptography, and secure storage services. - The Safety Island subsystem, running three instances of the Zephyr real-time operating system (RTOS). - The firmware for the Primary Compute, using Trusted Firmware-A, U-Boot, OP-TEE and Trusted Services. These are configured to be aligned with [Arm SystemReady IR][2]. The remaining software in the Primary Compute subsystem, based on the [Cassini][3] distribution, is available in two main architectures: baremetal and virtualization. ## Arm Automotive Solutions Documentation The project's documentation can be browsed at . To build a local version of the documentation, you will need [Sphinx][4] installed in your work environment. The following commands should be executed on a Linux machine and have been tested on hosts running Ubuntu 20.04 LTS. These can be used to generate an HTML version of the documentation under `public/`: sudo apt-get install python3-pip pip3 install -U -r documentation/requirements.txt sphinx-build -b html -a -W documentation public To render and explore the documentation, simply open `public/index.html` in a web browser. # Disclaimer Arm is a registered trademark of Arm Limited (or its subsidiaries or affiliates). [1]: https://trustedfirmware-m.readthedocs.io/en/tf-mv2.1.0/platform/arm/rse/readme.html [2]: https://www.arm.com/architecture/system-architectures/systemready-certification-program/ir [3]: https://cassini.readthedocs.io/en/scarthgap-dev/ [4]: https://www.sphinx-doc.org/