ETH4K Overview

The Disco Board – ETH4K is a completely open-source FPGA development board based on the iCE40HX4K. The board includes several robust communication methods such as Ethernet, USB, and abundant GPIO.

The iCE40HX4K features 3,520 logic cells, 80k-bits of embedded RAM, and 2 PLLs. The official tools for working with this device are iCEcube2 Design Software and Diamond Programmer. iCEcube2 is used to generate the bitmaps, and Diamond Programmer is used to flash the bitmaps onto the FPGA.

Key Features

• 90 fully programmable GPIO
• 4 analog inputs (12-bit resolution)
• 10BASE-T/100BASE-TX Ethernet controller
• USB-UART bridge
• 1MiB of flash memory
• Storage of up to four separate bitstreams
• Multiple power options
• Industrial temperature range (-40°C to 85°C)

Documentation

• Pinout Diagram
• Data Sheet
• Schematic
• Bill of Materials

Source Files

The ETH4K was designed using KiCad 7. The source files are available on GitHub.