FRIZZ
Firmware for CHOMPI (Chase Bliss)
Alternative firmware that turns the CHOMPI into a stereo looper and performance effects box, with thirteen punch-in effects, four FX scenes, input and mic routing, a master compressor and MIDI clock and CC control over TRS and USB.
by ZUHcYa
- Distribution
- Prebuilt image you flash yourself
- License notes
- The CHOMPI name and marks are not covered; see TRADEMARKS.md in the repository.
- Source
- github.com https://github.com/ZUHcYa/FrizZ
- Homepage
- frizz.friedrichwagner.eu https://frizz.friedrichwagner.eu
- looper
- fx
- midi
- sdk
- performance
Description
Forked from the WAVE firmware in the CHOMPI open-source release. The looper records free-length loops or loops locked to bars of an incoming MIDI clock, with semitone varispeed, reverse and scrub on the transport knob. Effects sit on the white keys and play while held or latch with SHIFT; scenes store every effect's settings and can be recalled, morphed or crossfaded in time. Input comes from AUX or the built-in microphone, and can run through or past the effects. Several effects are ported from Bastl Instruments' Kastle 2 FX Wizard. The firmware installs from the SD card, leaves the bootloader alone and can run beside TAPE, TEMPO and WAVE through the multi-firmware launcher. The author states that it was written with Claude Code and tested on a software model of the CHOMPI, on hardware, and by hand before each release.
Install notes
Copy FRIZZ.bin to the SD card, or install it beside the stock firmwares with the multi-firmware launcher. It keeps scenes and settings in its own FRIZZ folder and returns to stock the same way.
Version history
| Version | Date | Notes |
|---|---|---|
| v1.0.1 | 2026-10-13 | Documentation update; the firmware image is identical to v1.0.0. |
| v1.0.0 | 2026-10-13 | First stable release; the controls, MIDI map and scene format are fixed from here. |
| v0.11 | 2026-10-10 | |
| v0.10 | 2026-10-08 | |
| v0.9 | 2026-10-06 | First public release. |