Open-Source FPGA Workflow on the iCEBreaker

Build and program a minimal iCEBreaker design using Yosys, nextpnr-ice40, icepack, and iceprog.

Map top-level HDL ports to iCEBreaker pins with a PCF physical-constraints file.

Run a SystemVerilog module in Icarus Verilog and inspect its behavior in a waveform viewer.

Interpret synthesis and place-and-route reports for warnings, resource use, maximum clock frequency, and unconstrained paths.

Organize HDL sources, constraints, simulations, and build outputs in a reproducible project structure.

Diagnose a failed FPGA build by isolating errors from synthesis, constraints, place-and-route, or programming.

Distinguish conventional RTL HDLs such as SystemVerilog and VHDL from hardware-construction languages such as Chisel, SpinalHDL, Amaranth, and Bluespec, and identify why a team might choose each category.