Kulibin HDL library

reusable HDL modules

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Kulibin is a loose collection of reusable HDL modules. Auxiliary Python scripts are provided for analysis and parameter derivation; they commonly require NumPy, SciPy, SymPy, matplotlib. Higher-level modules serve as usage examples for the lower-level ones.

Verification

Each module is wrapped in a FuseSoC .core file. All testbenches are run locally with:

make verify

which invokes fusesoc run --target=sim[_<name>] zubax:kulibin:<module> for every registered target. To simulate one specific target instead of the full library, run e.g. fusesoc run --target=sim_cic_decimator zubax:kulibin:cic_decimator from the repository root.

See CI files in .github/.

Module dependency graph

graph TD
    %% auto-generated by hierarchy.py — do not edit
    async_parallel_bus_slave
    cdc_sync
    cic_decimator --> fir
    cic_decimator --> numeric
    counter
    fir --> numeric
    freqdiv
    iir --> numeric
    nco
    online_integrator --> fir
    online_integrator --> numeric
    reset
    sdadc_to_pwm --> cic_decimator
    sdadc_to_pwm --> deadtime
    sdadc_to_pwm --> fir
    sdadc_to_pwm --> numeric
    sdadc_to_pwm --> pwm

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