This is the Atmega1284 firmware for the AY3 Synthesizer.
Find the official manual & files at the official download page.
- Supports three clock modes: Atari ST, ZX Spectrum (for newer Revision B boards), and Legacy
- Sustain pedal support and an improved voice allocation algorithm for smoother synth performance
- Includes the AYMID protocol for receiving and playing song data via a specialised Ay_Emul variant
- Real-time remix functions for transforming incoming song data on the fly
- Produces a wide stereo spread using two synchronised timers for precise chip updates
- Comes with 32 flashable Creator sound presets plus a unique memory system for storing user-customised data
- Smooth, responsive control over all synth parameters
- Note-follow options for noise and envelope generators
- Logarithmic and linear envelope shaping available across the full range
- Allows linked or independent editing of noise and envelope parameters across both chips
Install platformio and python2. (Yes. I am so sorry :(.)
To compile the firmware and to generate the firmware update sysex, run:
make firmware.syx
Then put the device into bootloader mode by holding down the encoder button while turning it on, and send the sysex. Note that you need to wait about 200msec between each sysex.
If you want to fix a bug, add a feature or contribute in any other way to the development of this firmware, we are glad to accept a pull request in this repository! Please make sure your contribution adheres to the following:
- Please update CHANGELOG.md to contain a brief description of your changes.
- Ensure you do not break loading of old patches.
- Format your code using
make fmtbefore submitting.
Thank you, we are looking forward to your contribution! :)
The AY3 firmware under src/ and include/ is free software. It is released under the terms of
the ISC License. The libraries and tools distributed in the 3rdparty/ and lib/
directories have their own copyright and license notes.