Hardware details

_images/tiliqua_disassembled.png

Audio Interface

KiCAD files + schematics here: eurorack-pmod R3.3 hardware

  • 8 (4 in + 4 out) DC-coupled audio channels, 192 KHz / 24-bit sampling supported

  • Touch and proximity sensing on all 8 audio jacks (if unused)

  • PWM-controlled, user-programmable red/green LEDs on each audio channel

  • Jack insertion detection on all 8 jacks

Motherboard

KiCAD files + schematics here: Tiliqua R2 motherboard

  • Switched rotary encoder with bar graph display.

  • Dual USB ports:

    • dbg: Included RP2040-based JTAG debugger supported by openFPGAloader

    • usb2: USB PHY connected directly to FPGA for high-speed USB Audio support

  • Display output for video synthesis (maximum resolution 720/60P)

  • 2x expansion ports for up to 24 simultaneous audio channels (PMOD-compatible)

  • MIDI-In jack (TRS-A standard)

Embedded FPGA SoM (soldiercrab)

Schematics here : SoldierCrab R2

Note

SoldierCrab KiCAD files need some cleanup and will be published before the CrowdSupply campaign is launched.

  • Lattice ECP5 (25 K) FPGA, supported by open-source FPGA toolchains

  • 256 Mbit (32 MByte) HyperRAM / oSPI RAM (for long audio buffers or video framebuffers)

  • 128 Mbit (16 MByte) SPI flash for user bitstreams

  • High-speed USB HS PHY (ULPI)