羽毛物理格式的 ECP5 分线板_HTML_代码_文件_下载

# OrangeCrab [OrangeCrab Web site](https://orangecrab-fpga.github.io/orangecrab-hardware/) ## ECP5 FPGA Feather development board.  ## Latest Revision: * [OrangeCrab r0.2](hardware/orangecrab_r0.2/) Previous Revisions: * [OrangeCrab r0.1](hardware/orangecrab_r0.1/) --- ## What is it? There aren't many OSHW ECP5 boards available. Given that this FPGA is fully supported by an open source toolchain I decided to create one. In order to make use of the DDR3L support the ECP5 has, I've added some DDR3L memory. The board matches the feather format ## Hardware Overview * Lattice ECP5-25F FPGA in csfBGA285 package * 24 K - Look Up Tables * 1008 Kb - Embedded Block RAM * 194 Kb - Distributed RAM * 28 - 18x18 Multipliers * PLLs: 2 * Internal oscillator * Flexible I/O for DDR3 Memory Support * DDR3L Memory * 128 Mbytes (1Gbit) * 64M x16 * 1.35V low voltage operation * Micro USB connection * Full-speed (12Mbit) USB with direct connection to FPGA * Non-volatile Storage * 128Mbit QSPI FLASH Memory * Bootloader (First 4Mbits) * User Bitstream * User storage (Firmware/MSC backend/etc) * QSPI compatible * MicroSD socket * 4bit SD interface (CK, CMD, DAT0-3) * Power supply * High efficiency DCDC for main supplies * Battery charger (100mA), with charge indicator LED * LiPo battery connector (PH type) (1-cell: 3.7-4.2V) * 48MHz onboard oscillator * Standard 0.05" JTAG connector * User I/O * 1x Button * 1x RGB LED * 20x I/O on 0.1" headers * Analog System * Analog Mux * SAR ADC, external RC / input comparator of FPGA * Digital bypass * Internal channels for supply monitor * Battery voltage sensing * Feather Format Board * Dimensions: 22.86mm x 50.8mm (0.9" x 2.0") ---  ## Example code Example code for Verilog, Litex, And RiscV can be found here: * [Orange Crab Examples](https://github.com/orangecrab-fpga/orangecrab-examples) ## Community We have an OrangeCrab group on the 1BitSquared Discord * https://discord.gg/c4Dnr3b ## Licence * Hardware in this repository is licensed under CERN OHL v1.2 * Gateware/Software/Firmware in this repository is licensed under MIT unless otherwise indicated ## Open Source Hardware This board is an OSHWA approved design: [AU000006](https://certification.oshwa.org/au000006.html)