diff options
| -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 |