这是CrowdSupply众筹的一款开源FPGA开发板，网址：ULX3S - A powerful, open hardware ECP5 FPGA dev board

ULX3S is a fully open source, compact, robust, and affordable FPGA dev board equipped with a balanced selection of additional components and expansions. Although it was designed primarily as a teaching tool for mastering the principles of digital circuit design, ULX3S incorporates a wide array of features and interfaces that allow it to serve as a broadly useful module for installation in complex devices.

Built around a powerful Lattice Semiconductor ECP5-series FPGA chip and supported by the latest open-source toolchains, ULX3S is one of the most powerful and desirable platforms available for FPGA enthusiasts. It comes equipped with onboard Wi-Fi, display, buttons, LEDs, and storage. Flash it with an over-the-air (OTA) update using the Wi-Fi connection or take advantage of the onboard OLED display and buttons to browse the contents of an SD card and select a bitstream.

Energy Efficient, Versatile, and Easy to Program

Due to its battery-backed RTC, ULX3S can power down completely and wake up only in response to certain events. This feature makes it perfect for use in low-power applications such as battery-powered remote sensor nodes.

And if you’re not the low-power type, on-board peripherals like SDRAM, USB, digital video out, FM/ASK antenna, ADC, and DAC make it an audio/video powerhouse for signal processing and synthesis, motor control, and SDR use cases. It can emulate arcade machines and retro computers like the Minimig (Amiga) or modern systems like the F32C (MIPS/RISCV). It has 56 GPIO pins, all routed as differential pairs, and a PMOD compatible pinout, which opens it up to a wide range of expansion options.

Finally, if you are just starting out with FPGAs, you can use the Arduino IDE to program ULX3S in seconds.

On-Board ESP32

Software engineers, embedded developers, and programmers learning Verilog will enjoy having a built-in ESP32 that can work cooperatively with or independently of the FPGA. Program the ESP32 natively using C/C++ with the Arduino IDE, the Visual Micro extension for Visual Studio, or the Espressif IDF commandline toolchain. You can also configure the ESP32 for use with MicroPython, Espruino, the JavaScript SDK, NodeMCU, LUA, mruby, .Net C# nanoFramework, and more!

Stable Design

ULX3S has been actively developed since 2016 and is the result of a collaboration between Radiona.org / Zagreb Makerspace and FER – the Faculty of Electrical Engineering and Computing – at the University of Zagreb in Croatia.

Our PCB design was authored by Electronic Mechanic Aerodynamic Research & Development (EMARD).

Features & Specifications

• FPGA: Lattice ECP5
  • LFE5U-85F-6BG381C (84 K LUT)
  • LFE5U-45F-6BG381C (44 K LUT)
  • LFE5U-12F-6BG381C (12 K LUT)
• USB: FTDI FT231XS (500 kbit JTAG and 3 Mbit USB-serial)
• GPIO: 56 pins (28 differential pairs), PMOD-friendly with power out 3.3 V at 1 A or 2.5 V at 1.5 A
• RAM: 32 MB SDRAM 166 MHz
• Flash: 4-16 MB Quad-SPI Flash for FPGA config and user data storage
• Mass Storage: Micro-SD slot
• LEDs: 11 (8 user LEDs, 2 USB LEDs, 1 Wi-Fi LED)
• Buttons: 7 (4 direction, 2 fire, 1 power button)
• Audio: 3.5 mm jack with 4 contacts (analog stereo + digital audio or composite video)
• Video: Digital video (GPDI General-Purpose Differential Interface) with 3.3 V to 5 V I²C bidirectional level shifter
• Display: Placeholder for 0.96" SPI COLOR OLED SSD1331
• Wi-Fi & Bluetooth: ESP32-WROOM-32 supports a standalone JTAG web interface over Wi-Fi
• Antenna: 27, 88-108, 144, 433 MHz FM/ASK onboard
• ADC: 8 channels, 12 bit, 1 MS a/s MAX11125
• Power: 3 Switching voltage regulators: 1.1 V, 2.5 V, and 3.3 V
• Clock: 25 MHz onboard, external differential clock input
• Low-Power Sleep: 5 µA at 5 V standby, RTC MCP7940N clock wake-up, power button, 32768 Hz quartz with CR1225 battery backup
• Dimensions: 94 mm × 51 mm

Legend

Comparison Table

Support & Documentation

You will find setup and configuration guides, tutorials, and sample code in our FPGA Odysseus repository on GitHub. Additional resources are available in our Community Projects repository, or you can also reach out to other ULX3S developers through our Gitter community.

与ULX3S相关的资源：

List of all links you can try with ULX3S. See also ulx3s.github.io

• These links are being moved to https://ulx3s.github.io/

Documentation

• https://radiona.org/ulx3s/

ULX3S PCB

• Hardware

• Schematics

• http://github.com/emard/ulx3s

Getting Started

• https://github.com/emard/ulx3s-misc

• https://github.com/emard/ulx3s-bin

• https://github.com/f32c/tools/ujprog

FPGArduino

• http://www.nxlab.fer.hr/fpgarduino

• https://github.com/f32c/fpgarduino

• https://github.com/f32c/arduino

• https://github.com/f32c/f32c

• https://riscv.org/wp-content/uploads/2016/07/Tue1600zec_fpgarduino_riscv_wsV2.pdf

• https://www.youtube.com/watch?v=2DlkXjZnMjc&t=2s

Opensource toolchain

• https://github.com/SymbiFlow/prjtrellis

• https://github.com/YosysHQ/nextpnr

• https://github.com/YosysHQ/yosys

Opensource toolchain examples

• https://github.com/DoctorWkt/ULX3S-Blinky

• https://github.com/emard/Verilog_tic-tac-toe

https://github.com/emard/prjtrellis-picorv32

• https://github.com/emard/prjtrellis-dvi

• https://github.com/emard/prjtrellis-picorv32

• ULX3S WSL/Ubuntu Toolchain Open Source Install

Risc-V 32 Implementation in VHDL

• https://github.com/stnolting/neorv32

Advanced examples

Sources are prepared to compile with both open and closed source tools

HDMI, LED 64x64, LCD 3.5", OLED, SPDIF/ANALOG AUDIO ...

• https://github.com/emard/ulx3s-misc

Retro computing

• https://github.com/emard/galaksija

• https://github.com/emard/UK101onFPGA

• https://github.com/emard/Minimig_ECS (Amiga)

• https://www.youtube.com/watch?v=q0nysMydf4I&t=1s (Amiga Youtube)

Retro gaming

• https://github.com/emard/fpga_snake_game

• https://github.com/emard/Papilio-Arcade

• https://www.youtube.com/watch?v=CR-pVxN-08k (Galaksija Youtube)

• https://github.com/emard/vhdl_phoenix

Self-flash & web interface

• https://www.youtube.com/watch?v=cgYtZW4zPSI

HDMI example

• https://github.com/emard/prjtrellis-dvi

Small display

• https://github.com/emard/prjtrellis-vgalcd

SPI OLED

• https://github.com/emard/fpga_spi_oled

• https://github.com/emard/hdmi-audio

SDR

• https://github.com/emard/flearadio

• https://github.com/emard/rdsfpga

LED strip

• https://github.com/emard/ledstrip

64X64 LED panel

• https://github.com/emard/prjtrellis-led64x64

Linux on ULX3S

• https://twitter.com/fpga_dave/status/1053290842809683968

PMODS in progress

• https://github.com/goran-mahovlic/ulx3s-PMOD

• https://github.com/daveshah1/pmods