/OrangeCrab

ECP5 breakout board in a feather physical format

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Orange Crab

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ECP5 DDR3 memory in a Feather form-factor.

Project status: Still in Development (Use stuff here if you want, but there is limited support. It may simply not work)

What is it

This project started with a one goal: "Make a simple ECP5 + DDR3L breakout". At some point I decided it would be neat to make it match the adafruit feather format.

Hardware

  • Lattice ECP5 25/45/85 variants
  • 1x DDR3L Memory upto 8Gbit (x16)
  • Micro USB connection
  • Full-speed (12Mbit) USB direct connection to FPGA
  • Battery charger, with charge indicator LED
  • Reset Button
  • 16Mbit QSPI FLASH Memory (Bitstream + User storage)
  • 4bit MicroSD socket
  • 48MHz Oscillator (Used by USB system)
  • ATSAMD10/11 Co-processor planned mainly for the ADC/DAC
  • All spare I/O's broken out onto a 30pin low profile connector
    • 7 diff pairs
    • 1 single ended only

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