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| author | Jonny Svärd <jonny.svaerd@arm.com> | 2022-05-24 17:01:57 +0200 |
|---|---|---|
| committer | Kristofer Jonsson <kristofer.jonsson@arm.com> | 2022-05-25 09:34:12 +0000 |
| commit | 90ada2ea5681b2a2722a10d2898eac34c2510791 (patch) | |
| tree | df27229d991d99343cb04be186e1328a39108873 | |
| parent | 1c0e7ae4bbf8ee81411b4c2e02c70ca892d17390 (diff) | |
| download | ethos-u-core-driver-90ada2ea5681b2a2722a10d2898eac34c2510791.tar.gz | |
Currently TARGET_CPU should be used to set CPU+features, if
using core_platform provided toolchain files.
Change-Id: I053cc25de12501a2773238820daa150f9ea20fa7
| -rw-r--r-- | README.md | 22 |
1 files changed, 20 insertions, 2 deletions
@@ -8,8 +8,16 @@ The source code comes with a CMake based build system. The driver is expected to be cross compiled for any of the supported Arm Cortex(R)-M CPUs, which requires the user to configure the build to match their system configuration. -One such requirement is to define `CMAKE_SYSTEM_PROCESSOR` for the target CPU, -for example "cortex-m55+nodsp+nofp". Similarly the target NPU configuration is + +One such requirement is to define the target CPU, normally by setting +`CMAKE_SYSTEM_PROCESSOR`. **Note** that when using the toolchain files provided +in [core_platform](https://git.mlplatform.org/ml/ethos-u/ethos-u-core-platform.git), +the variable `TARGET_CPU` must be used instead of `CMAKE_SYSTEM_PROCESSOR`. + +Target CPU is specified on the form "cortex-m<nr><features>", for example: +"cortex-m55+nodsp+nofp". + +Similarly the target NPU configuration is controlled by setting `ETHOSU_TARGET_NPU_CONFIG`, for example "ethos-u55-128". The build configuration can be defined either in the toolchain file or @@ -23,6 +31,16 @@ $ cmake -B build \ $ cmake --build build ``` +or when using toolchain files from [core_platform](https://git.mlplatform.org/ml/ethos-u/ethos-u-core-platform.git) + +```[bash] +$ cmake -B build \ + -DCMAKE_TOOLCHAIN_FILE=<core_platform_toolchain> \ + -DTARGET_CPU=cortex-m<nr><features> \ + -DETHOSU_TARGET_NPU_CONFIG=ethos-u<nr>-<macs> +$ cmake --build build +``` + ## Driver APIs The driver APIs are defined in `include/ethosu_driver.h` and the related types |