Upduino Notes

• Lattice ICE40UP5K

  • Datasheet

  • Cell Library

  • Built-in I2C and SPI controllers (2 each)

    • iCE40 SPI/I2C Hardened IP Usage Guide
    • Advanced iCE40 SPI/I2C Hardened IP Usage Guide

• SPI Flash N25Q032A13ESC40F-ND

  • Datasheet
  • 32Mb (4MB), 3v, 4B sector erase, 108 MHz
  • 104090 bytes used for bitstream, the rest can be used for applications

• 12MHz OSC_OUT (generated by FT232HQ) goes to JP8. Can be used as reference accurate reference by FPGA.

Experiments with an Upduino v2

See ./blink director for a minimal design with a blinking LED.