# ![MicroZig Logo](design/logo-text-auto.svg)

[![Chat](https://img.shields.io/discord/824493524413710336.svg?logo=discord)](https://discord.gg/ShUWykk38X)
[![Downloads](https://img.shields.io/badge/Zig_Package-Download-blue)](https://downloads.microzig.tech/)
[![Continuous Integration](https://github.com/ZigEmbeddedGroup/microzig/actions/workflows/build.yml/badge.svg)](https://github.com/ZigEmbeddedGroup/microzig/actions/workflows/build.yml)

> **NOTE:** This is in development; breaks in the API are bound to happen.

## What version of Zig to use

Zig master/nightly

## Getting Started With MicroZig

### I Want To Use MicroZig

**IMPORTANT:** You don't have to clone this repository to get started!

MicroZig uses a monorepo architecture, but provides a lot of different packages. If you just want to get started, head over to [downloads.microzig.tech](https://downloads.microzig.tech/) and download an example for the chip family you desire.

We support several chip families like the [RP2 family by RaspberryPi Foundation](https://www.raspberrypi.com/products/rp2040/), [STM32 by STMicroelectronics](https://www.st.com/content/st_com/en.html), and many others.

Unpack the example, and run `zig build` in the resulting example folder gives you `zig-out/firmware` which contains the resulting files.

Right now, you gotta figure out how to flash the MCU yourself, but as people say: Google is your friend. But you can also ask for help [on our Discord server](https://discord.gg/ShUWykk38X).

### I Want To Contribute To MicroZig

Please see the [project page](https://github.com/orgs/ZigEmbeddedGroup/projects/1/views/1), it’s used as a place to brainstorm and organize work in ZEG. There will be issues marked as good first issue or drafts for larger ideas that need scoping/breaking ground on.

More words on contribution and development on MicroZig are [further down below](#developing).

## Introduction

This repo contains the infrastructure for getting started in an embedded Zig project; it "gets you to main()". Specifically, it offers:

* a single easy-to-use builder function that:
  * generates your linker script
  * sets up packages and startup code
* generalized interfaces for common devices, such as UART.
* device drivers for interacting with external hardware
* an uncomplicated method to define xref:interrupts[interrupts]

## Design

For MicroZig internals please see the [Design Document](docs/design.adoc).

## Repository structure

* `build/` contains the build components of MicroZig.
* `core/` contains the shared components of MicroZig.
* `bsp/` contains all official board support package.
* `examples/` contains examples that can be used with the board support packages.
* `tools/` contains tooling to work *on* MicroZig itself, so deployment, testing, ...
* `design/` contains images and logos

## Versioning Scheme

MicroZig versions are tightly locked with Zig versions.

The general scheme is `${zig_version}-${commit}-${count}`, so the MicroZig versions will look really similar to
Zigs versions, but with our own commit abbreviations and counters.

As MicroZig sticks to tagged Zig releases, `${zig_version}` will show to which Zig version the MicroZig build is compatible.

Consider the version `0.11.0-abcdef-123` means that this MicroZig version has a commit starting with `abcdef`, which was the 123rd commit of the version that is compatible with Zig 0.11.0.