Flipper Zero Firmware

Welcome to Flipper Zero's Firmware repo! Our goal is to create nice and clean code with good documentation, to make it a pleasure for everyone to work with.

Clone the Repository

You should clone with

$ git clone --recursive https://github.com/flipperdevices/flipperzero-firmware.git

Read the Docs

Check out details on how to build firmware, write applications, un-brick your device and more in documentation folder.

Update firmware

Get Latest Firmware from Update Server

Flipper Zero's firmware consists of two components:

Core2 firmware set - proprietary components by ST: FUS + radio stack. FUS is flashed at factory, and you should never update it.
Core1 Firmware - HAL + OS + Drivers + Applications.

They both must be flashed in the order described.

With offline update package

With Flipper attached over USB:

./fbt flash_usb

Just building the package:

./fbt updater_package

To update, copy the resulting directory to Flipper's SD card and navigate to update.fuf file in Archive app.

With STLink

Core1 Firmware

Prerequisites:

Linux / macOS
Terminal
arm-gcc-none-eabi
openocd

One-liner: ./fbt firmware_flash

With USB DFU

Download latest Firmware
Reboot Flipper to Bootloader

Press and hold ← Left + ↩ Back for reset
Release ↩ Back and keep holding ← Left until blue LED lights up
Release ← Left

Run dfu-util -D full.dfu -a 0

Build on Linux/macOS

Check out documentation/fbt.md for details on building and flashing firmware.

macOS Prerequisites

Make sure you have brew and install all the dependencies:

brew bundle --verbose

Linux Prerequisites

The FBT tool handles everything, only git is required.

Optional dependencies

openocd (debugging/flashing over SWD)
heatshrink (compiling image assets)
clang-format (code formatting)
dfu-util (flashing over USB DFU)
protobuf (compiling proto sources)

For example, to install them on Debian, use:

apt update
apt install openocd clang-format-13 dfu-util protobuf-compiler

heatshrink has to be compiled from sources.

Compile everything

./fbt

Check dist/ for build outputs.

Use flipper-z-{target}-full-{suffix}.dfu to flash your device.

Flash everything

Connect your device via ST-Link and run:

./fbt firmware_flash

Project structure

applications - Applications and services used in firmware
assets - Assets used by applications and services
furi - Furi Core: os level primitives and helpers
debug - Debug tool: GDB-plugins, SVD-file and etc
documentation - Documentation generation system configs and input files
firmware - Firmware source code
lib - Our and 3rd party libraries, drivers, etc.
scripts - Supplementary scripts and python libraries home

Also pay attention to ReadMe.md files inside those directories.

Krailon/flipperzero-firmware