amaranth-farm / amlib

assorted library of utility cores for amaranth HDL

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amlib

Assorted library of utility cores for amaranth HDL.

This library is in active development, therefore beware that things may break!

This library contains:

amlib.io : Basic communication cores:

  • UART
  • I2C
  • I2S (currently transmit only)
  • SPI
  • MAX7219 SPI LED array driver core
  • seven segment driver, value to bitbar driver
  • neopixel (WS2812) RGB led strip driver core
  • Debouncer for debouncing button inputs

amlib.dsp : Building blocks for digital signal processing:

  • fixed point FIR filter
  • fixed point IIR filter
  • fixed point CIC filter
  • fixed point halfband filter
  • fixed point FFT
  • filterbank
  • fractional resampler

amlib.dsp.convolution : Convolution cores:

  • mac: A convolution core which uses parallel multiply-accumulate (MAC) calculation. This introduces a latency of only one sample. For longer impulse responses it will consume several hardware multipliers for calculations.

amlib.soc : Building blocks for SOC creation:

  • CPU
  • interrupts
  • memory
  • wishbone
  • CSRs
  • SimpleSOC
  • peripherals

amlib.stream

  • LiteX like streams
  • stream generators from ROM
  • stream to I2C
  • stream to/from FIFO
  • stream arbiter
  • stream to UART

amlib.debug : Internal logic analyzer (ILA)

amlib.test : Convenience tools for automated testing of simulations, CRC

amlib.utils : basic utility modules:

  • bit manipulation functions
  • one-hot-multiplexer
  • synchronizer
  • strobe stretcher
  • dividing counter
  • edge to pulse
  • edge detectors
  • linear feedback shift register (LFSR)
  • NRZI encoder
  • shift register

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assorted library of utility cores for amaranth HDL

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