package hardcaml

"Hardcaml"

Hardcaml is an OCaml library for designing and testing hardware designs.

• Express hardware designs in OCaml

• Make generic designs using higher order functions, lists, maps, functors...

• Simulate designs in OCaml

• Convert to (hierarchical) Verilog or VHDL

• Write new modules to transform or analyse circuits, or provide new backends

Install

$ opam install hardcaml ppx_deriving_hardcaml hardcaml_waveterm

Documentation

• Manual

• API Docs

Tools and libraries

• Hardcaml_waveterm - ASCII based digital waveforms. Usable in expect tests or from an interactive terminal application.

• Hardcaml_c - convert Hardcaml designs to C-based simulation models. Provides an API compatible with the standard Cyclesim module. Trades compilation time for runtime performance.

• Hardcaml_verilator - Convert Hardcaml designs to very high speed simulation model using the open source Verilator compiler.

• Hardcaml_step_testbench - Monadic testbench API. Control multiple tasks synchronized to a clock without converting to a statemachine coding style.

• Hardcaml_circuits - A library of useful/interesting Hardcaml designs

• Hardcaml_fixed_point - Fixed point arithmetic with rounding and overflow control

• Hardcaml_xilinx - Various Xilinx primitives wrapped with Hardcaml interfaces and simulation models

• Hardcaml_xilinx_components - Tool to read Xilinx unisim and xpm component definitions and generate Hardcaml interfaces

• Hardcaml_of_verilog - Convert a verilog design to Hardcaml using Yosys

• Hardcaml_verify - SAT based formal verification tools for Hardcaml

• Hardcaml_xilinx_reports - Automated generation of synthesis reports from Vivado.

Projects using Hardcaml

• Hardcaml ZPrize - Multi-scalar Multiplication and Number Theoretic Transform accelerators.

• Hardcaml Mips - A simple 5-stage MIPs CPU with associated blog detailing the development process.

• Hardcaml_arty - Infrastructure targeting the Arty A7 board.

• Hardcaml Reed-Solomon - Configurable Reed-Solomon encoder and decoder implementation.

• Hardcaml JPEG - JPEG decoder design.