AVR-GCC 9.1.0 for Windows 32 and 64 bit

This is where I’ll be uploading builds of AVR-GCC for Windows 32 and 64 bit, which will also include Binutils, AVR-LibC, AVRDUDE and Make. I’ll be trying to keep the builds up to date with the latest tool releases when I can.

The binaries are built from source on an Arch Linux virtual machine with MinGW, apart from AVRDUDE where the pre-built binaries are obtained from the official download area. Both 32 bit and 64 bit Windows binaries are provided. There’s probably no benefit from using the 64 bit stuff, but all the cool kids are doing it so why not.
A bash script for building AVR-GCC, AVR-Binutils and AVR-LibC from source is also provided below, making it super easy to build these tools for yourself.

Included tools

Tool Version
GCC 9.1.0
Binutils 2.32
AVR-LibC 2.0.0
AVRDUDE 6.3 (Not included in Linux release)
Make 4.2.1 (Not included in Linux release)


avr-gcc-9.1.0-x64-mingw.zip (56.48 MB)
AVG-GCC 9.1.0 Windows x64 (64 bit)
Downloaded 1074 times
MD5: 52D2BAC9AB40A7E334932F9517F84B44

avr-gcc-9.1.0-x86-mingw.zip (54.28 MB)
AVG-GCC 9.1.0 Windows x86 (32 bit)
Downloaded 342 times
MD5: 724974F7C55068A9E45ED00D4C6ACAC7

avr-gcc-9.1.0-x64-linux.tar.bz2 (43.47 MB)
AVG-GCC 9.1.0 Linux x64
Downloaded 128 times
MD5: C14A06AFCFE12E22DE03C5F65CA7FF20

Upgrading the Arduino IDE

Upgrading the Arduino IDE is pretty easy, though there could be some incompatibilities with certain libraries. I’ve only tested this with Arduino 1.8.2.

  1. Download and extract one of the downloads above
  2. Navigate to your Arduino IDE folder
  3. Go to hardware/tools
  4. Move the avr folder somewhere else, like to your desktop (renaming the folder won’t work, Arduino has some auto-detect thing which sometimes gets confused)
  5. Move the extracted folder from earlier to the tools folder and rename it to avr
  6. Copy the builtin_tools_versions.txt file and etc folder from the old avr folder to the new one
  7. Done! Open up the Arduino IDE, load up the Blink example, upload it to your Arduino and make sure the LED is blinking!

Known Issues


Build Script

This build script will install the required packages, create directories and build the tools from source. This should work on Debian 8, Ubuntu 16.04, CentOS 7 and Arch.

Building takes about 30 minutes on an Arch Linux virtual machine with 4 cores i5 2500K @ 4GHz and 2GB RAM.

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