> For the complete documentation index, see [llms.txt](https://tk233.gitbook.io/notes/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://tk233.gitbook.io/notes/risc-v-soc/getting-started-with-zephyr/getting-started-with-zephyr-on-risc-v-ubuntu.md).

# Getting Started with Zephyr on RISC-V - Ubuntu

Using a12.mill

## Installation

Create a conda virtual environment.

```bash
conda create -yp ./.conda-env/ python=3.10
conda activate ./.conda-env/
```

Install system dependencies.

on a12.mill, cmake version is too low, so we need to install a newer one in conda environment.

```bash
conda install anaconda::cmake
```

additionally, we need these

```bash
conda install conda-forge::ninja
```

Install west, the build tool for zephyr.

```bash
pip install west
```

Create a new project.

```bash
west init ./getting-started/
cd ./getting-started/
west update
```

Export a [Zephyr CMake package](https://docs.zephyrproject.org/latest/build/zephyr_cmake_package.html#cmake-pkg). This allows CMake to automatically load boilerplate code required for building Zephyr applications.

```
west zephyr-export
```

Install Python dependencies.

```bash
pip install -r ./zephyr/scripts/requirements.txt
```

Install Zephyr SDK

```bash
cd ./zephyr/
west sdk install
```

Build blinky

```bash
west build -p always -b sparkfun_red_v_things_plus samples/basic/blinky
```

build for spike

```bash
west build -p always -b qemu_riscv64 samples/hello_world
```

on windows

<https://github.com/ninja-build/ninja/releases>

<https://www.segger.com/downloads/jlink/>

<https://7-zip.org/download.html>

```bash
pacman -S dtc
```

The workflow roughly follows the official tutorial.

{% embed url="<https://docs.zephyrproject.org/latest/develop/getting_started/index.html>" %}