unleashed-firmware/ReadMe.md

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.

Update firmware

Get Latest Firmware from Update Server

Flipper Zero's firmware consists of three components:

• Core2 firmware set - proprietary componenets by ST: FUS + radio stack.
• Core1 Bootloader - controls basic hardware initialization and loads firmware
• Core1 Firmware - HAL + OS + Drivers + Applications

All 3 of them must be flashed in order described.

With STLink

Core2 flashing procedures

Prerequisites:

• Linux / macOS
• Terminal
• STM32_Programmer_CLI added to $PATH

One liner: ./flash_core2_ble.sh

Core1 Bootloader + Firmware

Prerequisites:

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

One liner: ./flash_core1_main.sh

With USB DFU

1. Download latest Firmware

2. Reboot Flipper to Bootloader

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

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

Build from source

Prerequisites

1. Install Docker Engine and Docker Compose
2. Clone the repo:

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

3. Prepare the container:

   docker compose up -d
   

Compile bootloader

docker compose exec dev make -j$(nproc) -C bootloader TARGET=f6

Bootloader compilation results:

• bootloader/.obj/f6/bootloader.elf
• bootloader/.obj/f6/bootloader.hex
• bootloader/.obj/f6/bootloader.bin
• bootloader/.obj/f6/bootloader.dfu - should be used to flash

Compile firmware

docker compose exec dev make -j$(nproc) -C firmware TARGET=f6

Firmware compilation results:

• firmware/.obj/f6/firmware.elf
• firmware/.obj/f6/firmware.hex
• firmware/.obj/f6/firmware.bin
• firmware/.obj/f6/firmware.dfu - should be used to flash

Concatenate bootloader and firmware

You might want to do this to distribute the firmware as a single file.

That's exactly how we generate our full builds.

1. Concatenate HEX files:

   docker compose exec dev srec_cat \
    bootloader/.obj/f6/bootloader.hex -Intel \
    firmware/.obj/f6/firmware.hex -Intel \
    -o firmware/.obj/f6/full.hex -Intel
   

2. Convert HEX to DFU:

   docker compose exec dev hex2dfu \
    -i firmware/.obj/f6/full.hex \
    -o firmware/.obj/f6/full.dfu \
    -l "Flipper Zero F6"
   

Finally, you will have firmware/.obj/f6/full.dfu file that can be distributed and flashed.

Links

• Discord: flipp.dev/discord
• Website: flipperzero.one
• Kickstarter page: kickstarter.com
• Forum: forum.flipperzero.one

Folders structure

• applications - application and services
  • accessor - Wiegand server
  • archive - Archive and file manager
  • bt - BLE service and application
  • cli - Console service
  • debug_tools - different tools that we use on factory and for debug
  • dialogs - service for showing GUI dialogs
  • dolphin - dolphin service and supplientary apps
  • gpio-tester - GPIO control application
  • gui - GUI service
  • ibutton - ibutton application, onewire keys and more
  • input - input service
  • irda - irda application, controls your IR devices
  • irda_monitor - irda debug tool
  • lfrfid - LF RFID application
  • lfrfid-debug - LF RFID debug tool
  • loader - application loader service
  • menu - main menu service
  • music-player - music player app (demo)
  • nfc - NFC application, HF rfid, EMV and etc
  • notification - notification service
  • power - power service
  • power-observer - power debug tool
  • scened-app-example - c++ application example
  • storage - storage service, internal + sdcard
  • storage-settings - storage settings app
  • subghz - subghz application, 433 fobs and etc
  • tests - unit tests and etc
• assets - assets used by applications and services
  • compiled - compilation results
  • icons - source icons images
• bootloader - bootloader for flipper
  • src - bootloader sources
  • targets - targets' hal and implementation
• core - core libraries: home for furi
• debug - debug helpers, plugins and tools
• docker - docker image sources (used for automated firmware build)
• firmware - firmware for flipper
  • targets - targets' hal and implementation
• lib - different libraries and drivers that apps and firmware uses
  • ST25RFAL002 - ST253916 driver and NFC hal
  • STM32CubeWB - STM32WB hal
  • app-scened-template - scened template app library
  • app-template - template app library
  • callback-connector - callback connector library
  • common-api - common api delaration library
  • cyfral - cyfral library
  • drivers - drivers that we wrote
  • fatfs - external storage file system
  • fnv1a-hash - fnv1a hash library
  • irda - irda library
  • littlefs - internal storage file system
  • mlib - algorithms and containers
  • nfc_protocols - nfc protocols library
  • onewire - one wire library
  • qrcode - qr code generator library
  • subghz - subghz library
  • toolbox - toolbox of things that we are using but don't place in core
  • u8g2 - graphics library that we use to draw GUI
• make - make helpers
• scripts - supplimentary scripts