{
  "added_at": "2026-11-09",
  "additional_evidence_urls": [
    "https://github.com/enjoy-digital/camlink_4k/blob/55bfabaa7b91cf3711f4d1e3da575b1039ead907/LICENSE"
  ],
  "category": "reconstruction-cases",
  "class": "hardware",
  "description_en": "CamLink 4K rebuilds the first-generation Elgato Cam Link 4K capture pipeline with LiteX gateware for its ECP5 FPGA and bare-metal C firmware for its FX3 controller. It documents the HDMI receiver, DDR3 frame buffer, GPIF-II link and USB UVC/UAC output, with host tools for flashing and validation.",
  "description_zh": "CamLink 4K 为第一代 Elgato Cam Link 4K 重建视频采集链路：ECP5 FPGA 使用 LiteX 门级逻辑，FX3 控制器使用裸机 C 固件。项目记录 HDMI 接收器、DDR3 帧缓冲、GPIF-II 链路和 USB UVC/UAC 输出，并提供刷写与验证工具。",
  "entry_url": "https://awesomerea.org/resources/camlink-4k-case/",
  "entry_url_zh": "https://awesomerea.org/zh/resources/camlink-4k-case/",
  "evidence_url": "https://github.com/enjoy-digital/camlink_4k/blob/55bfabaa7b91cf3711f4d1e3da575b1039ead907/README.md",
  "group": "cases",
  "id": "camlink-4k-case",
  "json_url": "https://awesomerea.org/resources/camlink-4k-case/record.json",
  "kind": "case-study",
  "markdown_url": "https://awesomerea.org/resources/camlink-4k-case/index.md",
  "markdown_url_zh": "https://awesomerea.org/zh/resources/camlink-4k-case/index.md",
  "name": "CamLink 4K: replacement gateware and firmware for an Elgato capture card",
  "name_zh": "CamLink 4K：Elgato 采集卡的替代门级逻辑与固件",
  "record_type": "resource",
  "relationship": "independent-reconstruction",
  "requirement_facets": [
    "prerequisites",
    "prerequisites",
    "scope",
    "license"
  ],
  "requirements": [
    "First-generation Cam Link 4K hardware; back up its full SPI flash before replacing firmware.",
    "Linux host; LiteX, LiteDRAM, Migen, Yosys, nextpnr-ecp5, Project Trellis and arm-none-eabi-gcc for source builds.",
    "The Cam Link 4K MK.2 and Rev.3 use different designs.",
    "BSD 2-Clause licence."
  ],
  "requirements_zh": [
    "需要第一代 Cam Link 4K 硬件；替换固件前须备份完整 SPI 闪存。",
    "源码构建需要 Linux、LiteX、LiteDRAM、Migen、Yosys、nextpnr-ecp5、Project Trellis 和 arm-none-eabi-gcc。",
    "Cam Link 4K MK.2 和 Rev.3 采用不同设计。",
    "采用 BSD 2-Clause 许可证。"
  ],
  "targets": [
    "firmware"
  ],
  "url": "https://github.com/enjoy-digital/camlink_4k",
  "verification": "source-reviewed",
  "verified_at": "2026-11-08"
}