# Valeton GP180: USB MIDI SysEx protocol investigation

> Valeton GP180 Reverse Engineering investigates the guitar processor's USB MIDI SysEx traffic, firmware and companion Suite software. Its capture analysis reassembles fragmented SysEx messages and records framing, transaction fields and observed message families for presets, effects, settings and file transfers.

- Type: Case study
- Targets: App · Firmware · Protocol
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-08
- Original resource: <https://github.com/majabojarska/Valeton-GP180-Rev-Eng>
- Primary source: <https://github.com/majabojarska/Valeton-GP180-Rev-Eng/blob/11edfe521f7d43bf9489855fdedec7dab1de8462/usbcap-analysis.md>
- Catalog page: <https://awesomerea.org/resources/valeton-gp180-rev-eng-case/>
- Record JSON: <https://awesomerea.org/resources/valeton-gp180-rev-eng-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/valeton-gp180-rev-eng-case/index.md)

## Requirements & limits

- **Scope:** The investigation covers Valeton GP-180 firmware and Suite software, with USBPcap captures of device traffic.
- **Limits:** The integrity-byte algorithm and some message-family meanings remain unresolved.
- **License:** GPL-3.0 License.

## Primary sources

1. <https://github.com/majabojarska/Valeton-GP180-Rev-Eng/blob/11edfe521f7d43bf9489855fdedec7dab1de8462/usbcap-analysis.md>
2. <https://github.com/majabojarska/Valeton-GP180-Rev-Eng/blob/11edfe521f7d43bf9489855fdedec7dab1de8462/README.md>
3. <https://github.com/majabojarska/Valeton-GP180-Rev-Eng/blob/11edfe521f7d43bf9489855fdedec7dab1de8462/reverse-engineering-history.md>

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## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.