K230 SDK Build¶

This guide walks you through building the K230 SDK from source to generate the toolchain and firmware images.

Prerequisites¶

Docker installed
git installed
x86_64 Linux host

1. Clone the SDK¶

git clone https://github.com/kendryte/k230_sdk
cd k230_sdk

2. Download Toolchain and Source Code¶

Use the scripts included in the SDK to download the toolchain and dependency source code.

source tools/get_download_url.sh
make prepare_sourcecode

Once complete, the cross-compiler is extracted under the toolchain/ directory.

3. Build the Docker Image¶

Create the build Docker image from the Dockerfile included in the SDK.

docker build -f tools/docker/Dockerfile -t k230_sdk tools/docker

4. Build the SDK (Inside Docker)¶

Build the SDK inside a Docker container. The host user and group IDs are passed through to avoid file permission issues.

docker run -it --rm \
    --user $(id -u):$(id -g) \
    -v /etc/passwd:/etc/passwd:ro \
    -v /etc/group:/etc/group:ro \
    -v $(pwd):$(pwd) \
    -v $(pwd)/toolchain:/opt/toolchain \
    -w $(pwd) \
    k230_sdk \
    bash -c "make CONF=k230_canmv_defconfig"

Build time

The initial build may take from tens of minutes to several hours.

Build Artifacts¶

After a successful build, firmware images are generated in the output/ directory. The toolchain/ directory contains the cross-compiler, used for application development such as the bigcore Hello World Build.

Path	Contents
`output/`	Firmware images (for SD card flashing)
`toolchain/`	RISC-V cross-compiler

Build script

A build script (./build_sdk.sh) automating the steps above is also available: owhinata/canmv-k230