Krume Compute Module


Out of stock

SKU: LD-KRUME Categories: , ,


Krume is a small (2cm x 2cm) FPGA-based SOM (System-on-a-Module) designed to be embedded in a larger system.

Krume comes programmed with an example SoC (System-on-a-Chip) containing a RISC-V processor that lets you use the open-source GCC toolchain to develop applications in C and C++. Krume provides a simple interface to the FPGA I/O and allows reconfiguration of FPGA SRAM and onboard Flash over SPI.

The RISC-V SoC can be easily replaced with custom gateware that can be built using open-source FPGA development tools.

Currently available for reservation. Final appearance, specifications, pricing and features subject to change.


  • ICE5LP4K FPGA (3520 LUTs)
    • 1K words BRAM
  • 64Mb (8MB) QSPI PSRAM
  • 16Mb (1MB) QSPI NOR Flash
  • 7 GPIO pins (3.3V)
  • In-System Programmable FPGA configuration SRAM and flash
  • 1 white LED
  • Requires a 3.3V external power supply
  • 20mm x 20mm board dimensions


  • Flash pre-programmed with the “Weizen” System-on-a-Chip
    • RV32I CPU @ 24MHz
    • 32Kb (1K 32-bit words) Block RAM
    • Memory-mapped Flash (R/O) and PSRAM (R/W)
    • UART
    • Real-Time Clock
  • Open-source gateware, example software and schematics will be made available on Github
  • KiCad symbol and footprint available on GitHub

Use Cases

  • Embedded computing

Designed by Lone Dynamics Corporation. Manufactured in Europe or the United States of America. Tested and shipped from Germany.


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