OCTAMAX
Firmware for Octatrack MKI / MKII (Elektron)
Reverse-engineering toolkit for the Octatrack MKII OS 1.40C plus opt-in behaviour patches (lazy part transitions, no bank/pattern countdown, arp scales, slice playhead, 256 static slots). Origin of the scene.
- Distribution
- Patches a stock file you supply
- Requires stock
- 1.40C
- License notes
- No license file in the repository; downstream projects note it ships none. Code is offered for educational use only.
- Source
- github.com https://github.com/mxldyn/octamax
- research
- ui
- sequencer
- scales
Description
Educational workspace by Maxolydian: how the update files are packed, how code is laid out in memory, how the microkernel and DSP are driven, and a few optional, reversible behaviour changes that prove the understanding. Version 2.0 BETA is tested on one MKII. Toggles live in PERSONALIZE and persist across power cycles and OS upgrades. Later projects (octabam, Kyoti) credit it and reuse its analysis tooling.
Install notes
Run the setup scripts against your own official 1.40C .syx to produce a modified image. Flash with Elektron Transfer. The bootloader is never touched; [FUNC] + power on then [TRIG 3] recovers the unit even if the OS is corrupt.
Version history
| Version | Date | Notes |
|---|---|---|
| dual256-v1 | 2026-09-05 | Tag for the 256 static slots build. |
| 2.0 BETA | undated | Adds SLICE PLAYHEAD view and persistent PERSONALIZE toggles. Beta, tested on one MKII. |