Butterstick FPGA Development Board

The ButterStick is an FPGA development board. Building off the OrangeCrab, the Butterstick's primary focus is exposing lots of fast I/O pins. To achieve this goal it makes use of the SYZYGY peripheral connector standard. The board features High-speed USB and Gigabit Ethernet for high-speed input/output to a computer. Additionally there is 256MB (2Gbits) of onboard DDR3L memory. The development board makes use of the ECP5 FPGA from Lattice which is fully compatible with the open-source FPGA synthesis flow. Features at a glance Compact Size High speed USB (480Mbit/s) Gigabit Ethernet DDR3L Memory (2Gbits) SYZYGY compatible 82 I/O pins 5Gbps SERDES (upto 4x tx/rx lanes) Hardware Overview Lattice ECP5  85F FPGA in BGA381 package 2Gbit DDR3L Memory USB-C USB2.0 connection High-speed (480Mbit) ULPI PHY Non-volatile Storage 128Mbit QSPI FLASH Memory MicroSD socket 4bit SD interface (CK, CMD, DAT0-3) Power supply USB-C 5V input. Aux 5V power input. Onboard oscillators 60Mhz 25MHz (