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# Arm(R) Ethos(TM)-U core platform
Arm(R) Ethos(TM)-U core platform is provided as an example of how to produce a
firmware binary for a given target platform. This software is primarily intended
for guidance, to demonstrate how to boot up a firmware binary and how to run an
inference on an Arm Ethos-U compatible platform.
This repository contains target specific files, like linker scripts. Target
agnostic software components are provided in the
[core_software](https://review.mlplatform.org/plugins/gitiles/ml/ethos-u/ethos-u-core-software)
repository.
# Targets
## Arm(R) Corstone(TM)-300
The
[Arm(R) Corstone(TM)-300](https://developer.arm.com/ip-products/subsystem/corstone/corstone-300)
is a reference design of how to to build a secure System on Chip (SoC). A fixed
virtual platform (FVP) of the Arm Corstone-300 including the Arm Ethos-U can be
downloaded from the Ecosystem page at
[developer.arm.com](https://developer.arm.com/tools-and-software/open-source-software/arm-platforms-software/arm-ecosystem-fvps).
### Building
Building with default settings requires CMake for the configuration and make for
building. This will produce an elf file which can be run on the FVP.
```
$ cmake -B build/corstone-300 targets/corstone-300
$ cd build/corstone-300
$ make
```
It is also possible to build with a different toolchain.
```
$ cmake -B build/corstone-300 targets/corstone-300 -DCMAKE_TOOLCHAIN_FILE=$PWD/cmake/toolchain/arm-none-eabi-gcc.cmake
$ cd build/corstone-300
$ make
```
Please see [README_WINDOWS.md](README_WINDOWS.md) for additional information
regarding building on a Windows system.
### Testing
Assuming that the Corstone-300 FVP has been downloaded, installed and placed in
the PATH variable. Then the software binaries can be tested like this.
```
$ ctest
```
Individual applications can also be run directly with the FVP, for example like
this.
```
$ FVP_Corstone_SSE-300_Ethos-U55 applications/freertos/freertos.elf
```
# License
The Arm Ethos-U core platform is provided under an Apache-2.0 license. Please
see [LICENSE.txt](LICENSE.txt) for more information.
# Contributions
The Arm Ethos-U project welcomes contributions under the Apache-2.0 license.
Before we can accept your contribution, you need to certify its origin and give
us your permission. For this process we use the Developer Certificate of Origin
(DCO) V1.1 (https://developercertificate.org).
To indicate that you agree to the terms of the DCO, you "sign off" your
contribution by adding a line with your name and e-mail address to every git
commit message. You must use your real name, no pseudonyms or anonymous
contributions are accepted. If there are more than one contributor, everyone
adds their name and e-mail to the commit message.
```
Author: John Doe \<john.doe@example.org\>
Date: Mon Feb 29 12:12:12 2016 +0000
Title of the commit
Short description of the change.
Signed-off-by: John Doe john.doe@example.org
Signed-off-by: Foo Bar foo.bar@example.org
```
The contributions will be code reviewed by Arm before they can be accepted into
the repository.
# Security
Please see [Security](SECURITY.md).
# Trademark notice
Arm, Cortex, Corstone and Ethos are registered trademarks of Arm Limited (or its
subsidiaries) in the US and/or elsewhere.
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