Uploaded September 2025 | Updated September 2026, 2 weeks ago
Tiliqua (github.com/apfelaudio/tiliqua) is an open hardware development platform, DSP library and collection of examples (built in Amaranth HDL) that aims to make FPGA-based audio and video synthesis more accessible. This talk builds on [last year's edition](fossi-foundation.org/orconf/2024#synthesizing-music-synthesizers), this time covering some war stories from the past 12 months of getting Tiliqua hardware ready to ship, and all the new features added to the DSP/RTL library since then. We'll cover some fun topics such:
* Implementing low-latency USB host purely in gateware
* Dynamic frequency scaling for display switching
* New DSP cores and example projects
* How we are adding first-class fixed-point types to the Amaranth language
* Lessons learned from shipping hardware (and some tricks for passing CE/EMC)
As we walk through each theme, this talk will include some live demos on a small Eurorack system demonstrating each.
Tiliqua (github.com/apfelaudio/tiliqua) is an open hardware development platform, DSP library and collection of examples (built in Amaranth HDL) that aims to make FPGA-based audio and video synthesis more accessible. This talk builds on [last year's edition](fossi-foundation.org/orconf/2024#synthesizing-music-synthesizers), this time covering some war stories from the past 12 months of getting Tiliqua hardware ready to ship, and all the new features added to the DSP/RTL library since then. We'll cover some fun topics such:
* Implementing low-latency USB host purely in gateware
* Dynamic frequency scaling for display switching
* New DSP cores and example projects
* How we are adding first-class fixed-point types to the Amaranth language
* Lessons learned from shipping hardware (and some tricks for passing CE/EMC)
As we walk through each theme, this talk will include some live demos on a small Eurorack system demonstrating each.
