Isle Index

Isle is a simple, modern computer — an open design that encourages tinkering, experimentation, and doing your own thing. The project launched in summer 2025. For an introduction see Isle FPGA Computer.

Project Information

• Isle FPGA Computer
• Dev Boards
• Isle Git Repo

Building Isle

This book describes my journey in building Isle, the why as well as the how. Posts are refined and updated over time. Each chapter has a self-contained design that demonstrates the new components.

• Part 1 - Graphics
  1. Display
     • Display Modes
  2. Bitmap Graphics
  3. 2D Drawing
  4. Text Mode
• Part 2 - CPU
  5. RISC-V CPU
     • Chapter 5 Software
  6. Input (under development)
• Appendices (under development)
  1. Software Build
  2. Lakritz Build
  3. Nexys Video Build
  4. ULXS3 Build
  5. Verilator SDL Build

Further chapters under development.