Setup Cygwin

download the Setup*.exe from https://www.cygwin.com/

Execute the download Setup and step through the installation wizard (no need to customize the settings here). Stop at the "Select Packages" Screen and select the following Packages for Installation:

Devel/git
Devel/git-completion (Optional)
Devel/make
Devel/binutils
Editors/vim
Editors/vim-common (Optional)
Shells/mintty (should be already selected)

Continue with the Installation and accept all autodetected dependencies.

Setup GNU ARM Toolchain

versions do matter, 4.8-2014-q2 is known to work well. Download this version from https://launchpad.net/gcc-arm-embedded/+download - preferrebly as a ZIP-File.

Extract the contents of this archive to any folder of your choice, for instance C:\dev\gcc-arm-none-eabi-4_8-2014q2.

add the "bin" subdirectory to the PATH Windows environment variable: PATH%;C:\dev\gcc-arm-none-eabi-4_8-2014q2\bin

Checkout and compile Cleanflight

Head over to the Cleanflight Github page and grab the URL of the GIT Repository: "https://github.com/cleanflight/cleanflight.git"

Open the Cygwin-Terminal, navigate to your development folder and use the git commandline to checkout the repository:

```bash cd /cygdrive/c/dev git clone https://github.com/cleanflight/cleanflight.git ```

To compile your Cleanflight binaries, enter the cleanflight directory and build the project using the make command. You can append TARGET=[HARDWARE] if you want to build anything other than the default NAZE target:

```bash cd cleanflight make TARGET=NAZE ```

within few moments you should have your binary ready:

```bash (...) arm-none-eabi-size ./obj/main/cleanflight_NAZE.elf text data bss dec hex filename 95388 308 10980 106676 1a0b4 ./obj/main/cleanflight_NAZE.elf arm-none-eabi-objcopy -O ihex –set-start 0x8000000 obj/main/cleanflight_NAZE.elf obj/cleanflight_NAZE.hex ```

You can use the Cleanflight-Configurator to flash the obj/cleanflight_NAZE.hex file.

Updating and rebuilding

Navigate to the local cleanflight repository and use the following steps to pull the latest changes and rebuild your version of cleanflight:

```bash cd /cygdrive/c/dev/cleanflight git reset –hard git pull make clean TARGET=NAZE make ```