Open source

Free, open-source VHDL and software libraries for FPGA engineering.

lm_math_fi

Fixed-point arithmetic for FPGA — a synthesizable VHDL building block for DSP and math datapaths, with a Python reference model verified bit-for-bit against fxpmath.

  • VHDL / Python
  • math
  • Apache-2.0
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lm_math_float

Floating-point arithmetic for FPGA in VHDL, using IEEE-754 field conventions — vendor-independent RTL you can inspect, verify, and carry across FPGA families.

  • VHDL
  • math
  • Apache-2.0
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lm_util

Vendor-independent VHDL utility library — counters, delays, CDC, CRC, arbiters, and sizing helpers, hardened across 20 years of real FPGA designs.

  • VHDL
  • utilities
  • Apache-2.0
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